Pub Date : 2024-12-26DOI: 10.1016/j.still.2024.106421
Mariano Santiago Iseas, Claudia Mabel Sainato, Catalina Romay
The use of supplemental irrigation could stabilise crop yields in the Pampean region in the face of climate variability. However, inadequate management of this practice could compromise soil quality. The effect supplemental irrigation on soil salinity and sodicity, nutrients, organic carbon and some physical properties was studied on a farm, with production of grains and oilseeds, in the Pampean region of Argentina. Although the groundwater used for irrigation is classified as sodium bicarbonate type, it has no risk of soil salinity and sodicity. This work was carried out on 7 plots with different conditions of soil type, soil cover and recovery time after last irrigation. Significant increases in salinity, sodicity and alkalinity due to supplemental irrigation were observed. Phosphates content (PO4) and organic carbon (OC) slightly decreased, while nitrate content (NO3) did not change significantly. It is assumed that PO4 may have decreased due to increased leaching and/or consumption by the irrigated crop, while the change in OC may be related to an increased rate of organic decomposition. Changes in physical properties were less important. Slight increases in aggregate stability (AS), bulk density (BD) and loss of clay content were observed. It may be hypothesised that the observed joint increase in salinity and sodicity may stabilise the flocculation-dispersion processes that give structure and aggregation to the soil, thus neutralising the effects of irrigation on physical properties.
{"title":"Supplemental irrigation in the humid Pampean region: Effects on soil salinity, physical properties, nutrients and organic carbon","authors":"Mariano Santiago Iseas, Claudia Mabel Sainato, Catalina Romay","doi":"10.1016/j.still.2024.106421","DOIUrl":"https://doi.org/10.1016/j.still.2024.106421","url":null,"abstract":"The use of supplemental irrigation could stabilise crop yields in the Pampean region in the face of climate variability. However, inadequate management of this practice could compromise soil quality. The effect supplemental irrigation on soil salinity and sodicity, nutrients, organic carbon and some physical properties was studied on a farm, with production of grains and oilseeds, in the Pampean region of Argentina. Although the groundwater used for irrigation is classified as sodium bicarbonate type, it has no risk of soil salinity and sodicity. This work was carried out on 7 plots with different conditions of soil type, soil cover and recovery time after last irrigation. Significant increases in salinity, sodicity and alkalinity due to supplemental irrigation were observed. Phosphates content (PO<ce:inf loc=\"post\">4</ce:inf>) and organic carbon (OC) slightly decreased, while nitrate content (NO<ce:inf loc=\"post\">3</ce:inf>) did not change significantly. It is assumed that PO<ce:inf loc=\"post\">4</ce:inf> may have decreased due to increased leaching and/or consumption by the irrigated crop, while the change in OC may be related to an increased rate of organic decomposition. Changes in physical properties were less important. Slight increases in aggregate stability (AS), bulk density (BD) and loss of clay content were observed. It may be hypothesised that the observed joint increase in salinity and sodicity may stabilise the flocculation-dispersion processes that give structure and aggregation to the soil, thus neutralising the effects of irrigation on physical properties.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The sustained intensification of agricultural production to meet increasing food, feed and fibre demands has aggravated soil deformation, thereby accelerating soil degradation. The conversion of some of these degraded arable lands to permanent grassland has been recommended to recover the soil functions. However, there is still a considerable gap in understanding the timeline for the effective recovery of degraded land in terms of its stability (resistance and resilience to disturbance). Moreover, the dynamics of the recovery process in ameliorative grasslands are still not fully understood. In this study, the physical, hydraulic, and mechanical properties including the coefficient of compressibility (C<ce:inf loc="post">n</ce:inf>) and precompression stress were investigated in degraded arable land at three different depths (0–5, 10–15 and 20–25 cm) after 1-, 2-, 8-, 13-, 19-, and 25-years ameliorative grassland conversion. To fully understand and finalise the dynamics of the recovery process as a function of time since the amelioratory conversion, we combined the analysed data from 2 different sets of measurements (loading conditions) on samples predrained to − 60 hPa matric potential. The loading conditions were (a). static - confined compression with normal stresses applied for 4 h in steps of 1, 20, 50, 100, 200, and 400 kPa without stress relaxation on each sample, and (b). dynamic - cyclic loading at 50 kPa with 30 seconds of loading and unloading (relaxation). We included data concerning porewater pressure dynamics under the cyclic loading condition to document possible changes in elasticity. Our results showed that settlement during loading and the elastic rebound during unloading were related to the sward age and the sampled depth. Before the cyclic loading experiment, higher values of effective stress were recorded in the older swards, but the values changed after loading in response to the change in the porewater pressure. The effective stress values were less negative during loading than when unloading. At soil depth of 0–5 cm in the 25 years old sward, the rebound rate (values) and the coefficient of compressibility were higher due to changes in soil properties, particularly the soil bulk density, while at the 10–15 and 20–25 cm depths, the mean values were much closer. When the rebound rate was considered, the highest mean value occurred at 13 years after conversion. In addition, significantly higher values of pre-compression stress were observed in the 8-year-old sward under static loading, which decreased by 19 years. Higher values of pre-compression stress were mostly recorded at the lower depths under static loading. Finally, the results showed that a period between 8 and 13 years is needed to document the starting of strength regain and the recovery of the physical properties and functions, after conversion to grassland. This recovery was observed even up to deeper depths of 20–25 cm for precompression stress and for the soil
{"title":"Changes in mechanical and resilience characteristics of degraded arable land under long-term grassland management","authors":"Ayodele Ebenezer Ajayi, Oluwaseun Temitope Faloye, Jens Rostek, Veronika Schroeren, Abayomi Fasina, Rainer Horn","doi":"10.1016/j.still.2024.106387","DOIUrl":"https://doi.org/10.1016/j.still.2024.106387","url":null,"abstract":"The sustained intensification of agricultural production to meet increasing food, feed and fibre demands has aggravated soil deformation, thereby accelerating soil degradation. The conversion of some of these degraded arable lands to permanent grassland has been recommended to recover the soil functions. However, there is still a considerable gap in understanding the timeline for the effective recovery of degraded land in terms of its stability (resistance and resilience to disturbance). Moreover, the dynamics of the recovery process in ameliorative grasslands are still not fully understood. In this study, the physical, hydraulic, and mechanical properties including the coefficient of compressibility (C<ce:inf loc=\"post\">n</ce:inf>) and precompression stress were investigated in degraded arable land at three different depths (0–5, 10–15 and 20–25 cm) after 1-, 2-, 8-, 13-, 19-, and 25-years ameliorative grassland conversion. To fully understand and finalise the dynamics of the recovery process as a function of time since the amelioratory conversion, we combined the analysed data from 2 different sets of measurements (loading conditions) on samples predrained to − 60 hPa matric potential. The loading conditions were (a). static - confined compression with normal stresses applied for 4 h in steps of 1, 20, 50, 100, 200, and 400 kPa without stress relaxation on each sample, and (b). dynamic - cyclic loading at 50 kPa with 30 seconds of loading and unloading (relaxation). We included data concerning porewater pressure dynamics under the cyclic loading condition to document possible changes in elasticity. Our results showed that settlement during loading and the elastic rebound during unloading were related to the sward age and the sampled depth. Before the cyclic loading experiment, higher values of effective stress were recorded in the older swards, but the values changed after loading in response to the change in the porewater pressure. The effective stress values were less negative during loading than when unloading. At soil depth of 0–5 cm in the 25 years old sward, the rebound rate (values) and the coefficient of compressibility were higher due to changes in soil properties, particularly the soil bulk density, while at the 10–15 and 20–25 cm depths, the mean values were much closer. When the rebound rate was considered, the highest mean value occurred at 13 years after conversion. In addition, significantly higher values of pre-compression stress were observed in the 8-year-old sward under static loading, which decreased by 19 years. Higher values of pre-compression stress were mostly recorded at the lower depths under static loading. Finally, the results showed that a period between 8 and 13 years is needed to document the starting of strength regain and the recovery of the physical properties and functions, after conversion to grassland. This recovery was observed even up to deeper depths of 20–25 cm for precompression stress and for the soil ","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-25DOI: 10.1016/j.still.2024.106423
Congwei Sun, Hui Wu, Subramaniam Gopalakrishnan, Enke Liu, Xurong Mei
Plastic film mulching combined with nitrogen application is a prime chief strategy for enhancing maize yields in rain-fed agricultural areas. However, how the practice affects the productivity and functions of soil by altering nitrogen transformation mediated by rhizosphere microorganisms in the Loess Plateau, remains unclear. In this research, an 7-year field location experiment was conducted to ascertain the effects of plastic film mulching with nitrogen application (225 kg N ha−1) on the rhizosphere microbial nitrogen transformation in a rain-fed maize field on the Loess Plateau. Plastic film mulching with nitrogen application reduced the pH value and also increased the abundance of microorganisms (e.g., Nitrosospira, Halomonas) and genes (e.g., pmoB-amoB, hao, nirB, and nirD) during the vegetative stage. This promoted nitrification and dissimilatory nitrate reduction to ammonium, which increased the content of inorganic nitrogen in the rhizosphere. During the reproductive stages, plastic flim mulching reduced the relative abundance of aerobic bacteria (e.g., Skermanella, Sphingomonas), and the ratio of (nirK + nirS) / nosZ, which inhibited denitrification and dinitrogen oxide emission potential. Overall, our findings highlight the feedback mechanism of soil nitrogen transformation to plastic film mulching with nitrogen application in the Loess Plateau, providing valuable insights for manipulating specific microorganisms to regulate nitrogen transformation and promoting the sustainability of soil ecosystems.
在雨养农业区，覆膜配施氮肥是提高玉米产量的主要策略。然而，这种做法如何通过改变黄土高原根际微生物介导的氮转化来影响土壤的生产力和功能尚不清楚。本研究通过为期7年的田间定位试验，研究了覆膜施氮（225 kg N ha−1）对黄土高原旱作玉米根际微生物氮转化的影响。覆盖地膜施氮降低了土壤的pH值，也增加了营养阶段微生物（如亚硝基螺旋体、盐单胞菌）和基因（如pmoB-amoB、hao、nirB和nirD）的丰度。这促进了硝化作用和异化硝态氮还原为铵态氮，从而增加了根际无机氮的含量。在繁殖阶段，地膜覆盖降低了好氧菌（Skermanella，鞘氨单胞菌）的相对丰度和(nirK + nirS) / nosZ的比值，从而抑制了反硝化作用和二氮氧化物排放势。综上所述，本研究揭示了黄土高原土壤氮素向地膜转化的反馈机制，为调控特定微生物调控氮素转化，促进土壤生态系统的可持续性提供了有价值的见解。
{"title":"Plastic film mulching with nitrogen application activates rhizosphere microbial nitrification and dissimilatory nitrate reduction in the Loess Plateau","authors":"Congwei Sun, Hui Wu, Subramaniam Gopalakrishnan, Enke Liu, Xurong Mei","doi":"10.1016/j.still.2024.106423","DOIUrl":"https://doi.org/10.1016/j.still.2024.106423","url":null,"abstract":"Plastic film mulching combined with nitrogen application is a prime chief strategy for enhancing maize yields in rain-fed agricultural areas. However, how the practice affects the productivity and functions of soil by altering nitrogen transformation mediated by rhizosphere microorganisms in the Loess Plateau, remains unclear. In this research, an 7-year field location experiment was conducted to ascertain the effects of plastic film mulching with nitrogen application (225 kg N ha<ce:sup loc=\"post\">−1</ce:sup>) on the rhizosphere microbial nitrogen transformation in a rain-fed maize field on the Loess Plateau. Plastic film mulching with nitrogen application reduced the pH value and also increased the abundance of microorganisms (e.g., <ce:italic>Nitrosospira</ce:italic>, <ce:italic>Halomonas</ce:italic>) and genes (e.g., <ce:italic>pmoB-amoB</ce:italic>, <ce:italic>hao</ce:italic>, <ce:italic>nirB</ce:italic>, and <ce:italic>nirD</ce:italic>) during the vegetative stage. This promoted nitrification and dissimilatory nitrate reduction to ammonium, which increased the content of inorganic nitrogen in the rhizosphere. During the reproductive stages, plastic flim mulching reduced the relative abundance of aerobic bacteria (e.g., <ce:italic>Skermanella</ce:italic>, <ce:italic>Sphingomonas</ce:italic>), and the ratio of (<ce:italic>nirK</ce:italic> + <ce:italic>nirS</ce:italic>) / <ce:italic>nosZ</ce:italic>, which inhibited denitrification and dinitrogen oxide emission potential. Overall, our findings highlight the feedback mechanism of soil nitrogen transformation to plastic film mulching with nitrogen application in the Loess Plateau, providing valuable insights for manipulating specific microorganisms to regulate nitrogen transformation and promoting the sustainability of soil ecosystems.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-24DOI: 10.1016/j.still.2024.106430
Adnan Anwar Khan, Imran Azeem, Jing Hui, Yupei Chen, Yuqi Yuan, Tahir Shah, Muhammad Adeel, Noman Shakoor, Rana Muhammad Ammar Asghar, Weidong Cao, Dabin Zhang, Yajun Gao
Incorporating the green manure (GM) approach in agroecosystems enhances phosphorus (P) availability and reduces mineral P-fertilizer input. Despite global promotion, a comprehensive global synthesis of the GM effect on soil P fractions is lacking. To address this gap, we conducted a meta-analysis of 48 published studies to evaluate the impact of climatic, edaphic, and agronomic variables on soil P fractions, enzyme activities, subsequent crop yield, and P uptake under a GM cropping system. Overall, GMs significantly increased the labile P fraction (n = 592) by 18 % compared with fallow management. Non-leguminous GMs showed a 21 % increase in labile P, resulting in an 18 % increase in subsequent crop yield and a 30 % increase in subsequent crop P uptake compared with fallow. Leguminous GMs stimulated soil enzyme activities, elevating acid phosphatase (ACP) by 40 % and β-glucosidase by 182 % compared with fallow. Compared to no-till (NT), GMs under conventional tillage (CT) significantly increased soil enzyme activities, including ACP, alkaline phosphatase (ALP), β-glucosidase, as well as subsequent crop yield, and P uptake. Long-term GM incorporation (5–10 yrs) significantly reduced moderately labile P by 25 %, leading to increased labile P fraction. Linear regression analysis demonstrated a positive correlation between labile P and soil organic carbon (SOC), but a negative with mean annual precipitation (MAP) and mean annual temperature (MAT). These findings suggest that incorporating GMs into a CT management system can potentially accelerate soil P cycling by promoting soil enzyme activities, enhancing subsequent crop production, and providing an alternative approach to reducing mineral P-fertilizer dependency. This approach exemplifies sustainable food production practices and underscores the significance of GMs for long-term agricultural resilience and soil health worldwide.
{"title":"Non-leguminous green manures improve labile phosphorus availability and crop yield in agroecosystems: A global meta-analysis","authors":"Adnan Anwar Khan, Imran Azeem, Jing Hui, Yupei Chen, Yuqi Yuan, Tahir Shah, Muhammad Adeel, Noman Shakoor, Rana Muhammad Ammar Asghar, Weidong Cao, Dabin Zhang, Yajun Gao","doi":"10.1016/j.still.2024.106430","DOIUrl":"https://doi.org/10.1016/j.still.2024.106430","url":null,"abstract":"Incorporating the green manure (GM) approach in agroecosystems enhances phosphorus (P) availability and reduces mineral P-fertilizer input. Despite global promotion, a comprehensive global synthesis of the GM effect on soil P fractions is lacking. To address this gap, we conducted a meta-analysis of 48 published studies to evaluate the impact of climatic, edaphic, and agronomic variables on soil P fractions, enzyme activities, subsequent crop yield, and P uptake under a GM cropping system. Overall, GMs significantly increased the labile P fraction (n = 592) by 18 % compared with fallow management. Non-leguminous GMs showed a 21 % increase in labile P, resulting in an 18 % increase in subsequent crop yield and a 30 % increase in subsequent crop P uptake compared with fallow. Leguminous GMs stimulated soil enzyme activities, elevating acid phosphatase (ACP) by 40 % and β-glucosidase by 182 % compared with fallow. Compared to no-till (NT), GMs under conventional tillage (CT) significantly increased soil enzyme activities, including ACP, alkaline phosphatase (ALP), β-glucosidase, as well as subsequent crop yield, and P uptake. Long-term GM incorporation (5–10 yrs) significantly reduced moderately labile P by 25 %, leading to increased labile P fraction. Linear regression analysis demonstrated a positive correlation between labile P and soil organic carbon (SOC), but a negative with mean annual precipitation (MAP) and mean annual temperature (MAT). These findings suggest that incorporating GMs into a CT management system can potentially accelerate soil P cycling by promoting soil enzyme activities, enhancing subsequent crop production, and providing an alternative approach to reducing mineral P-fertilizer dependency. This approach exemplifies sustainable food production practices and underscores the significance of GMs for long-term agricultural resilience and soil health worldwide.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-24DOI: 10.1016/j.still.2024.106428
Bruno dos Anjos Bartsch, Nicolas Augusto Rosin, Jorge Tadeu Fim Rosas, Raul Roberto Poppiel, Fernando Yutaro Makino, Letícia Guadagnin Vogel, Jean Jesus Macedo Novais, Renan Falcioni, Marcelo Rodrigo Alves, José A.M. Demattê
Pedosphere is the largest terrestrial carbon reservoir. Soil organic carbon (SOC) is a critical attribute for soil quality and crop productivity, being directly linked to climate change mitigation and food security. Brazil boasts a significant agricultural production area and substantial potential for carbon sequestration. Nevertheless, the spatial-temporal distribution of SOC across the country is poorly understood, hindering the implementation of low-carbon agriculture public policies. We aimed to map the spatio-temporal distribution of SOC at from 0.00 to 0.20 cm depth over two periods. We assessed the SOC variation over seven years, generating a time series with five periods, obtaining the average SOC values. The Cubist algorithm was used to calibrate two short period (two years) and a long period (seven years/all period) models for SOC spatial prediction. Remote sensing data and soil particle size distribution maps were used as environmental covariates. We found in validation R2 values of 0.47 and 0.25 for short period models, and 0.34 for the long period model. The SOC content decreased by 54.97 % in the area according to the mapping by short period models and 53.72 % according to mapping by the long-period model. The predicted maps showed the same trend of the database (soil samples with observed SOC values) for the study areas using both short period and long period models.
{"title":"Space-time mapping of soil organic carbon through remote sensing and machine learning","authors":"Bruno dos Anjos Bartsch, Nicolas Augusto Rosin, Jorge Tadeu Fim Rosas, Raul Roberto Poppiel, Fernando Yutaro Makino, Letícia Guadagnin Vogel, Jean Jesus Macedo Novais, Renan Falcioni, Marcelo Rodrigo Alves, José A.M. Demattê","doi":"10.1016/j.still.2024.106428","DOIUrl":"https://doi.org/10.1016/j.still.2024.106428","url":null,"abstract":"Pedosphere is the largest terrestrial carbon reservoir. Soil organic carbon (SOC) is a critical attribute for soil quality and crop productivity, being directly linked to climate change mitigation and food security. Brazil boasts a significant agricultural production area and substantial potential for carbon sequestration. Nevertheless, the spatial-temporal distribution of SOC across the country is poorly understood, hindering the implementation of low-carbon agriculture public policies. We aimed to map the spatio-temporal distribution of SOC at from 0.00 to 0.20 cm depth over two periods. We assessed the SOC variation over seven years, generating a time series with five periods, obtaining the average SOC values. The Cubist algorithm was used to calibrate two short period (two years) and a long period (seven years/all period) models for SOC spatial prediction. Remote sensing data and soil particle size distribution maps were used as environmental covariates. We found in validation R<ce:sup loc=\"post\">2</ce:sup> values of 0.47 and 0.25 for short period models, and 0.34 for the long period model. The SOC content decreased by 54.97 % in the area according to the mapping by short period models and 53.72 % according to mapping by the long-period model. The predicted maps showed the same trend of the database (soil samples with observed SOC values) for the study areas using both short period and long period models.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-24DOI: 10.1016/j.still.2024.106432
Lingling Xie, Shaojun Wang, Mei Lu, Bo Xiao, Zhengjun Wang, Zhipeng Guo, Xiaofei Guo, Shuang Luo, Ru Li, Jiahui Xia, Shengqiu Yang, Mengjie Lan
As important structuring force in ecosystems, ants play crucial roles in driving source-sink processes of soil methane (CH4) through a series of biotic and abiotic pathways. However, there is still uncertainty about how different ant species regulate CH4 fluxes in slash-burn tropical soils. This study aimed to identify the pathways by which the different ant species (i.e., Pheidole capellini-honeydew harvester, Odontoponera transversa-predator, and Pheidologeton affinis-scavenger) control soil CH4 fluxes in Xishuangbanna tropical forests, southwestern China. We observed a net CH4 emission in the nests of three ant species (1.29 ± 0.047 μg m−2 h−1) and a net uptake in the reference soils (-1.60 ± 0.043 μg m−2 h−1). The contribution of three ant species to the reduction of annual total forest surface CH4 uptake ranged from 0.06 % to 4.82 %. The P. capellini nests increased CH4 emissions by 144.18 % compared with the reference soils, whereas O. transversa and P. affinis nests increased by 124.65 % and 111.71 %, respectively. In contrast with the reference soils, the greatest increase (33.7–511.1 %) in abundance of dominant methanogen taxa (Candidatus Thermoplasmatota and Euryarchaeota), methanogen Sobs index, soil water content, total organic carbon, and microbial biomass carbon was found in P. capellini nests. In contrast, the highest increase (92.0 %) in nitrate nitrogen was recorded in P. affinis nests. In particular, CH4 fluxes were directly or indirectly driven by increased Candidatus Thermoplasmatota abundance (26.04 %), soil water content (15.41 %), and microbial biomass carbon (11.70 %), while the abundance of Methylomirabilota bacteria explained 7.76 % of variation in CH4 fluxes. Our data indicate that CH4 fluxes vary with ant species probably due to their differentiated modification on methanogenic bacterial abundance, micro-habitat, and microbial carbon in Xishuangbann tropical soils. This results would provide further insight into the contribution of soil fauna to greenhouse gas emissions from tropical forests.
{"title":"How do different ant species mediate CH4 fluxes in slash-burn tropical forest soils?","authors":"Lingling Xie, Shaojun Wang, Mei Lu, Bo Xiao, Zhengjun Wang, Zhipeng Guo, Xiaofei Guo, Shuang Luo, Ru Li, Jiahui Xia, Shengqiu Yang, Mengjie Lan","doi":"10.1016/j.still.2024.106432","DOIUrl":"https://doi.org/10.1016/j.still.2024.106432","url":null,"abstract":"As important structuring force in ecosystems, ants play crucial roles in driving source-sink processes of soil methane (CH<ce:inf loc=\"post\">4</ce:inf>) through a series of biotic and abiotic pathways. However, there is still uncertainty about how different ant species regulate CH<ce:inf loc=\"post\">4</ce:inf> fluxes in slash-burn tropical soils. This study aimed to identify the pathways by which the different ant species (i.e., <ce:italic>Pheidole capellini</ce:italic>-honeydew harvester, <ce:italic>Odontoponera transversa</ce:italic>-predator, and <ce:italic>Pheidologeton affinis</ce:italic>-scavenger) control soil CH<ce:inf loc=\"post\">4</ce:inf> fluxes in Xishuangbanna tropical forests, southwestern China. We observed a net CH<ce:inf loc=\"post\">4</ce:inf> emission in the nests of three ant species (1.29 ± 0.047 μg m<ce:sup loc=\"post\">−2</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup>) and a net uptake in the reference soils (-1.60 ± 0.043 μg m<ce:sup loc=\"post\">−2</ce:sup> h<ce:sup loc=\"post\">−1</ce:sup>). The contribution of three ant species to the reduction of annual total forest surface CH<ce:inf loc=\"post\">4</ce:inf> uptake ranged from 0.06 % to 4.82 %. The <ce:italic>P. capellini</ce:italic> nests increased CH<ce:inf loc=\"post\">4</ce:inf> emissions by 144.18 % compared with the reference soils, whereas <ce:italic>O. transversa</ce:italic> and <ce:italic>P. affinis</ce:italic> nests increased by 124.65 % and 111.71 %, respectively. In contrast with the reference soils, the greatest increase (33.7–511.1 %) in abundance of dominant methanogen taxa (Candidatus Thermoplasmatota and Euryarchaeota), methanogen Sobs index, soil water content, total organic carbon, and microbial biomass carbon was found in <ce:italic>P. capellini</ce:italic> nests. In contrast, the highest increase (92.0 %) in nitrate nitrogen was recorded in <ce:italic>P. affinis</ce:italic> nests. In particular, CH<ce:inf loc=\"post\">4</ce:inf> fluxes were directly or indirectly driven by increased Candidatus Thermoplasmatota abundance (26.04 %), soil water content (15.41 %), and microbial biomass carbon (11.70 %), while the abundance of Methylomirabilota bacteria explained 7.76 % of variation in CH<ce:inf loc=\"post\">4</ce:inf> fluxes. Our data indicate that CH<ce:inf loc=\"post\">4</ce:inf> fluxes vary with ant species probably due to their differentiated modification on methanogenic bacterial abundance, micro-habitat, and microbial carbon in Xishuangbann tropical soils. This results would provide further insight into the contribution of soil fauna to greenhouse gas emissions from tropical forests.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soil salinization is associated with soil productivity and food stocks, and hazards to the sustainable development of agriculture economics and the ecological environment. Hence, to evaluate the improvement and underlying mechanisms of agricultural amelioration practices on salinity alleviation, soil fertility improvement and crop growth, the organic fertilizer and soil amendments were applied to the rice field in coastal saline soil over one year. In this study, five treatments replicated three times were conducted in 15 experimental plots including CK (no amendments addition), OF (bio-organic fertilizer addition), OH (bio-organic fertilizer combined with hydrolytic polymaleic anhydride addition), OQ (bio-organic fertilizer combined with carbon nano sol addition), OB (bio-organic fertilizer combined with potassium fulvic acid addition). Co-application of organic fertilizer and soil amendment significantly reduced soil pH and EC by 1.3 % - 3.7 % and 14 % - 20 %, respectively. Organic treatments OH has the highest content of SOC (10.46 g kg−1) and available nitrogen (AN, 76 mg kg−1). OB treatment has the highest content of available potassium (AK, 294 mg kg−1), and the activity of soil urease (S-UE) and alkaline phosphatase (S-AKP). Organic treatments have significantly increased the plant height, leaf area, 1000-grain weight (4 %-7 %), and yield of rice (4 %-15 %) compared to CK. Organic fertilizer and amendments added explained 81 % and 68 % of the variation in SQI and rice yield, respectively. RDA analysis indicated that S-UE activity and nitrogen were the most factors that contributed to SQI and rice yield. Our results suggested that the organic fertilizer combined with soil amendments improved soil quality comprehensively, and enhanced rice growth and yield by reducing soil salt and salinity, and increasing soil biochemical properties (S-UE and N content) in coastal saline soil.
{"title":"Synergistic effects of bio-organic fertilizer and different soil amendments on salt reduction, soil fertility, and yield enhancement in salt-affected coastal soils","authors":"Meng Xiao, Shengguo Jiang, Jinbiao Li, Wenping Li, Pengxiao Fu, Guangming Liu, Jinlin Chen","doi":"10.1016/j.still.2024.106433","DOIUrl":"https://doi.org/10.1016/j.still.2024.106433","url":null,"abstract":"Soil salinization is associated with soil productivity and food stocks, and hazards to the sustainable development of agriculture economics and the ecological environment. Hence, to evaluate the improvement and underlying mechanisms of agricultural amelioration practices on salinity alleviation, soil fertility improvement and crop growth, the organic fertilizer and soil amendments were applied to the rice field in coastal saline soil over one year. In this study, five treatments replicated three times were conducted in 15 experimental plots including CK (no amendments addition), OF (bio-organic fertilizer addition), OH (bio-organic fertilizer combined with hydrolytic polymaleic anhydride addition), OQ (bio-organic fertilizer combined with carbon nano sol addition), OB (bio-organic fertilizer combined with potassium fulvic acid addition). Co-application of organic fertilizer and soil amendment significantly reduced soil pH and EC by 1.3 % - 3.7 % and 14 % - 20 %, respectively. Organic treatments OH has the highest content of SOC (10.46 g kg<ce:sup loc=\"post\">−1</ce:sup>) and available nitrogen (AN, 76 mg kg<ce:sup loc=\"post\">−1</ce:sup>). OB treatment has the highest content of available potassium (AK, 294 mg kg<ce:sup loc=\"post\">−1</ce:sup>), and the activity of soil urease (S-UE) and alkaline phosphatase (S-AKP). Organic treatments have significantly increased the plant height, leaf area, 1000-grain weight (4 %-7 %), and yield of rice (4 %-15 %) compared to CK. Organic fertilizer and amendments added explained 81 % and 68 % of the variation in SQI and rice yield, respectively. RDA analysis indicated that S-UE activity and nitrogen were the most factors that contributed to SQI and rice yield. Our results suggested that the organic fertilizer combined with soil amendments improved soil quality comprehensively, and enhanced rice growth and yield by reducing soil salt and salinity, and increasing soil biochemical properties (S-UE and N content) in coastal saline soil.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-24DOI: 10.1016/j.still.2024.106434
Peng Jiao, Yang Ou, Shujiang Pang, Baixing Yan, Yu Zhang, Wenxu Xu, Liming Yan
The black soil region in Northeast China is an important commodity grain base. In recent years, with the intensification of agricultural activities, the formation and development of gullies on sloping farmland have accelerated, severely affecting food and ecological security. In order to effectively control regional soil erosion, this study comprehensively utilized historical databases of gullies, remote sensing images, field surveys, spatial analysis, and multivariate statistical techniques to reveal the morphological characteristics, development rates, and main driving factors of 116 gullies in typical agricultural watersheds in the low hills of Northeast China. The results showed that linear gully retreat rate in the study area ranged from 4.3 to 8.4 m y−1, with an average of approximately 6.34 m y−1, between 2011 and 2021. The areal gully retreat rate ranged from 90.7 to 1224.4 m2 y−1, with an average growth rate of approximately 339.17 m2 y−1. Compared with other regions in the world, the development rate of gullies in black soil region of Northeast China is relatively fast, especially in terms of lateral expansion, which is about 7 times greater than longitudinal extension. Gully side-wall retreat (approximately 56.8 m2 y−1) was found to be the dominant factor influencing the change in gully area. Environmental variables explained 60.2 % of the variation in gully morphological characteristics, with natural factors having a greater impact on the linear development of gullies than human factors. However, human factors were closely related to lateral expansion. Due to the large proportion of agricultural landscapes and high spatial homogeneity in the study area, micro-topographic features (such as catchment area and elevation) and the spatial configuration of agricultural landscape patches (patch density and edge density) were identified as the main influencing factors of gully erosion development in study area. Therefore, targeted measures and control strategies should be designed based on a comprehensive assessment of terrain factors and landscape pattern indicators to mitigate gully erosion risks. In the future, based on obtaining more three-dimensional data of gullies, empirical coefficient equations should be constructed using gully area and length as independent variables to predict gully volume. This will help identify the main factors influencing sediment and organic matter loss caused by gully erosion in black soil region, and provide technical support for improving the predictive capabilities of gully erosion risks and developing more rational prevention and control strategies.
东北黑土地区是中国重要的商品粮基地。近年来，随着农业活动的加剧，坡耕地沟壑的形成和发展加快，严重影响了粮食安全与生态安全。为了有效控制区域土壤侵蚀，综合利用沟壑历史数据库、遥感影像、野外调查、空间分析和多元统计等技术，揭示了东北低丘典型农业流域116条沟壑的形态特征、发育速率及其主要驱动因素。结果表明：2011 - 2021年，研究区沟谷退缩率为4.3 ~ 8.4 m y−1，平均约为6.34 m y−1；沟面退缩率为90.7 ~ 1224.4 m2 y−1，平均生长率约为339.17 m2 y−1。与世界其他地区相比，东北黑土区沟槽发育速度较快，特别是横向扩展速度约为纵向扩展速度的7倍。沟槽侧壁退缩（约56.8 m2 y−1）是影响沟槽面积变化的主要因素。环境变量对沟壑形态特征变化的贡献率为60.2 %，自然因素对沟壑线性发育的影响大于人为因素。然而，人为因素与侧方扩张密切相关。研究区农业景观占比大，空间均匀性高，微地形特征（流域面积、高程）和农业景观斑块的空间配置（斑块密度、边缘密度）是影响研究区沟蚀发展的主要因素。因此，应在综合评价地形因素和景观格局指标的基础上，设计有针对性的措施和控制策略，以减轻沟壑区侵蚀风险。今后，在获取更多沟槽三维数据的基础上，应以沟槽面积和沟槽长度为自变量，构建经验系数方程来预测沟槽体积。这将有助于识别黑土区沟蚀导致泥沙和有机质流失的主要影响因素，为提高沟蚀风险预测能力和制定更合理的防治策略提供技术支持。
{"title":"Impacts of landscape factors on gully retreat and its morphological characteristics in hilly areas of Northeast China","authors":"Peng Jiao, Yang Ou, Shujiang Pang, Baixing Yan, Yu Zhang, Wenxu Xu, Liming Yan","doi":"10.1016/j.still.2024.106434","DOIUrl":"https://doi.org/10.1016/j.still.2024.106434","url":null,"abstract":"The black soil region in Northeast China is an important commodity grain base. In recent years, with the intensification of agricultural activities, the formation and development of gullies on sloping farmland have accelerated, severely affecting food and ecological security. In order to effectively control regional soil erosion, this study comprehensively utilized historical databases of gullies, remote sensing images, field surveys, spatial analysis, and multivariate statistical techniques to reveal the morphological characteristics, development rates, and main driving factors of 116 gullies in typical agricultural watersheds in the low hills of Northeast China. The results showed that linear gully retreat rate in the study area ranged from 4.3 to 8.4 m y<ce:sup loc=\"post\">−1</ce:sup>, with an average of approximately 6.34 m y<ce:sup loc=\"post\">−1</ce:sup>, between 2011 and 2021. The areal gully retreat rate ranged from 90.7 to 1224.4 m<ce:sup loc=\"post\">2</ce:sup> y<ce:sup loc=\"post\">−1</ce:sup>, with an average growth rate of approximately 339.17 m<ce:sup loc=\"post\">2</ce:sup> y<ce:sup loc=\"post\">−1</ce:sup>. Compared with other regions in the world, the development rate of gullies in black soil region of Northeast China is relatively fast, especially in terms of lateral expansion, which is about 7 times greater than longitudinal extension. Gully side-wall retreat (approximately 56.8 m<ce:sup loc=\"post\">2</ce:sup> y<ce:sup loc=\"post\">−1</ce:sup>) was found to be the dominant factor influencing the change in gully area. Environmental variables explained 60.2 % of the variation in gully morphological characteristics, with natural factors having a greater impact on the linear development of gullies than human factors. However, human factors were closely related to lateral expansion. Due to the large proportion of agricultural landscapes and high spatial homogeneity in the study area, micro-topographic features (such as catchment area and elevation) and the spatial configuration of agricultural landscape patches (patch density and edge density) were identified as the main influencing factors of gully erosion development in study area. Therefore, targeted measures and control strategies should be designed based on a comprehensive assessment of terrain factors and landscape pattern indicators to mitigate gully erosion risks. In the future, based on obtaining more three-dimensional data of gullies, empirical coefficient equations should be constructed using gully area and length as independent variables to predict gully volume. This will help identify the main factors influencing sediment and organic matter loss caused by gully erosion in black soil region, and provide technical support for improving the predictive capabilities of gully erosion risks and developing more rational prevention and control strategies.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142889230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soil salinization is a major threat to global arable productivity. Chemical amendments are widely used to improve salt-affected soils and have been proven to be effective. However, the effectiveness of amendments varies across different regions and depends on field management practices. To quantify the improvement effects of different amendments on salt-affected soils and how amendment application affects plant productivity and soil properties, we compiled 2061 pairs of data from 92 studies about amendments across China to conduct a meta-analysis. We found that amendments application improved soil quality by reducing soil pH, electrical conductivity (EC), and exchangeable sodium percentage (ESP) with 3.9 %, 18.1 %, and 43.4 %, and improved soil nutrients by increasing soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN), available phosphorus (AP), and available potassium (AK) with 33.6 %, 37.7 %, 35.0 %, 55.3 %, and 32.3 %, and subsequently increased plant emergence rate and yield with 16.2 % and 52.2 % regardless of amendment types, respectively. Specifically, applying mixed amendments led to a significant reduction in soil EC by 33.6 %, whereas the application of inorganic compound decreased soil EC by 8.6 %. Furthermore, biochar application significantly increased SOM by 58.4 % and TN by 46.2 %, while gypsum application increased SOM and TN with only 20.9 % and 17.4 %, respectively. Field management, soil properties, and climate all significantly affected the improvement effect after amendments application. The effects of improving salt-affected soil were strongly correlated with the amount and duration of amendments application, followed by the initial soil salinity and alkalinity. Our findings indicated that the selection of soil amendments should consider not only their quantity but also factors such as cost, the longevity of their effects, and environmental safety.
{"title":"The application of amendments improves properties of salt-affected soils across China","authors":"Guangzhi Huang, Baishun Liu, Xiaotong Jiang, Yanping Liang, Jinghui Cai, Lihua Huang","doi":"10.1016/j.still.2024.106431","DOIUrl":"https://doi.org/10.1016/j.still.2024.106431","url":null,"abstract":"Soil salinization is a major threat to global arable productivity. Chemical amendments are widely used to improve salt-affected soils and have been proven to be effective. However, the effectiveness of amendments varies across different regions and depends on field management practices. To quantify the improvement effects of different amendments on salt-affected soils and how amendment application affects plant productivity and soil properties, we compiled 2061 pairs of data from 92 studies about amendments across China to conduct a meta-analysis. We found that amendments application improved soil quality by reducing soil pH, electrical conductivity (EC), and exchangeable sodium percentage (ESP) with 3.9 %, 18.1 %, and 43.4 %, and improved soil nutrients by increasing soil organic matter (SOM), total nitrogen (TN), available nitrogen (AN), available phosphorus (AP), and available potassium (AK) with 33.6 %, 37.7 %, 35.0 %, 55.3 %, and 32.3 %, and subsequently increased plant emergence rate and yield with 16.2 % and 52.2 % regardless of amendment types, respectively. Specifically, applying mixed amendments led to a significant reduction in soil EC by 33.6 %, whereas the application of inorganic compound decreased soil EC by 8.6 %. Furthermore, biochar application significantly increased SOM by 58.4 % and TN by 46.2 %, while gypsum application increased SOM and TN with only 20.9 % and 17.4 %, respectively. Field management, soil properties, and climate all significantly affected the improvement effect after amendments application. The effects of improving salt-affected soil were strongly correlated with the amount and duration of amendments application, followed by the initial soil salinity and alkalinity. Our findings indicated that the selection of soil amendments should consider not only their quantity but also factors such as cost, the longevity of their effects, and environmental safety.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-12-20DOI: 10.1016/j.still.2024.106436
Xiaolei Yin, Xiaofei Yu, Lei Qin, Ming Jiang, Xianguo Lu, Yuanchun Zou
The molecular diversity of soil organic matter (SOM) is recognised as a key factor influencing soil organic carbon (SOC) accumulation, and the molecular diversity of SOM may change as SOC content changes during land use change. However, the relationship between SOM molecular diversity and SOC before and after natural wetland reclamation remains unclear. Here, we selected seven groups of natural wetland–reclaimed wetlands for spatially paired sampling. SOM molecular diversity was assessed using pyrolysis–gas chromatography–mass spectrometry (py-GC/MS), and factors driving changes in SOM molecular diversity (including microbial community characteristics, enzyme activities, carbon mineralisation rate and soil environmental factors) were investigated. The results showed that molecular diversity (Shannon diversity, Richness) tended to increase with increasing organic carbon content in both wetland and paddy soils. And the soil mineralisation rate decreased with the increase of molecular diversity. This suggests that the relationship between molecular diversity and organic carbon content is not decoupled, even in anaerobic or cyclic anaerobic environments. Therefore, the molecular diversity of soil organic matter can be used as an indicator of the sustainability of soil carbon pools. Microbial biomass and enzyme activity characteristics were important factors influencing soil carbon dynamics and molecular diversity. Molecular diversity decreases with a loss of soil organic carbon after wetland reclamation. Compared to those in natural wetlands, the relative proportions of both aliphatic and alkyl compounds decreased, and the relative proportions of nitrogenous compounds increased in paddy field soils. In addition, the rate of soil carbon mineralisation increases despite the presence of a greater proportion of recalcitrant carbon (phenols and aromatics) in paddy soils. Our results also suggest a positive role for molecular diversity in suppressing soil mineralization rates. Our study provides a molecular diversity-based perspective for understanding wetland soil organic carbon dynamics under the influence of reclamation.
{"title":"Reclamation leads to loss of soil organic carbon and molecular complexity: Evidence from natural to reclaimed wetlands","authors":"Xiaolei Yin, Xiaofei Yu, Lei Qin, Ming Jiang, Xianguo Lu, Yuanchun Zou","doi":"10.1016/j.still.2024.106436","DOIUrl":"https://doi.org/10.1016/j.still.2024.106436","url":null,"abstract":"The molecular diversity of soil organic matter (SOM) is recognised as a key factor influencing soil organic carbon (SOC) accumulation, and the molecular diversity of SOM may change as SOC content changes during land use change. However, the relationship between SOM molecular diversity and SOC before and after natural wetland reclamation remains unclear. Here, we selected seven groups of natural wetland–reclaimed wetlands for spatially paired sampling. SOM molecular diversity was assessed using pyrolysis–gas chromatography–mass spectrometry (py-GC/MS), and factors driving changes in SOM molecular diversity (including microbial community characteristics, enzyme activities, carbon mineralisation rate and soil environmental factors) were investigated. The results showed that molecular diversity (Shannon diversity, Richness) tended to increase with increasing organic carbon content in both wetland and paddy soils. And the soil mineralisation rate decreased with the increase of molecular diversity. This suggests that the relationship between molecular diversity and organic carbon content is not decoupled, even in anaerobic or cyclic anaerobic environments. Therefore, the molecular diversity of soil organic matter can be used as an indicator of the sustainability of soil carbon pools. Microbial biomass and enzyme activity characteristics were important factors influencing soil carbon dynamics and molecular diversity. Molecular diversity decreases with a loss of soil organic carbon after wetland reclamation. Compared to those in natural wetlands, the relative proportions of both aliphatic and alkyl compounds decreased, and the relative proportions of nitrogenous compounds increased in paddy field soils. In addition, the rate of soil carbon mineralisation increases despite the presence of a greater proportion of recalcitrant carbon (phenols and aromatics) in paddy soils. Our results also suggest a positive role for molecular diversity in suppressing soil mineralization rates. Our study provides a molecular diversity-based perspective for understanding wetland soil organic carbon dynamics under the influence of reclamation.","PeriodicalId":501007,"journal":{"name":"Soil and Tillage Research","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142867511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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