Pub Date : 2024-10-28DOI: 10.1016/j.apsoil.2024.105710
D.J. Russell, E. Naudts, N.A. Soudzilovskaia, M.J.I. Briones, M. Çakır, E. Conti, J. Cortet, C. Fiera, D. Hackenberger Kutuzovic, M. Hedde, K. Hohberg, D. Indjic, P.H. Krogh, R. Lehmitz, S. Lesch, Z. Marjanovic, C. Mulder, L. Mumladze, M. Murvanidze, S. Rick, A. Potapov
Soil and soil-biodiversity protection are increasingly important issues in environmental science and policies, requiring the availability of high-quality empirical data on soil biodiversity. Here we present a publicly available data warehouse for the soil-biodiversity domain, Edaphobase 2.0, which provides a comprehensive toolset for storing and re-using international soil-biodiversity data sets, following the FAIR (Findable, Accessible, Interoperable, and Reusable) principles. A major strength is the possibility of annotating biodiversity data with exhaustive geographical, environmental and methodological metadata, allowing a wide range of applications and analyses. The system harmonises and integrates heterogeneous data from diverse sources into standardised formats, which can be searched together using numerous filter possibilities, and offers data exploration and analysis tools. Edaphobase features a strict data transparency policy, comprehensive quality control, and DOIs can be provided for individual data sets. The database currently contains >450,000 data records from >35,0000 sites and is accessed nearly 14,000 times/year. The data curated by Edaphobase 2.0 can greatly aid researchers, conservationists and decision makers in understanding and protecting soil biodiversity.
{"title":"Edaphobase 2.0: Advanced international data warehouse for collating and using soil biodiversity datasets","authors":"D.J. Russell, E. Naudts, N.A. Soudzilovskaia, M.J.I. Briones, M. Çakır, E. Conti, J. Cortet, C. Fiera, D. Hackenberger Kutuzovic, M. Hedde, K. Hohberg, D. Indjic, P.H. Krogh, R. Lehmitz, S. Lesch, Z. Marjanovic, C. Mulder, L. Mumladze, M. Murvanidze, S. Rick, A. Potapov","doi":"10.1016/j.apsoil.2024.105710","DOIUrl":"10.1016/j.apsoil.2024.105710","url":null,"abstract":"<div><div>Soil and soil-biodiversity protection are increasingly important issues in environmental science and policies, requiring the availability of high-quality empirical data on soil biodiversity. Here we present a publicly available data warehouse for the soil-biodiversity domain, Edaphobase 2.0, which provides a comprehensive toolset for storing and re-using international soil-biodiversity data sets, following the FAIR (Findable, Accessible, Interoperable, and Reusable) principles. A major strength is the possibility of annotating biodiversity data with exhaustive geographical, environmental and methodological metadata, allowing a wide range of applications and analyses. The system harmonises and integrates heterogeneous data from diverse sources into standardised formats, which can be searched together using numerous filter possibilities, and offers data exploration and analysis tools. Edaphobase features a strict data transparency policy, comprehensive quality control, and DOIs can be provided for individual data sets. The database currently contains >450,000 data records from >35,0000 sites and is accessed nearly 14,000 times/year. The data curated by Edaphobase 2.0 can greatly aid researchers, conservationists and decision makers in understanding and protecting soil biodiversity.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105710"},"PeriodicalIF":4.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-25DOI: 10.1016/j.apsoil.2024.105718
Eric Manirakiza , Noura Ziadi , Vicky Lévesque , Mario Laterriere
Biochar and paper mill biosolids (PB) are reported to improve soil fertility, crop growth and indirectly conditions for soil microbial communities. However, it is unclear how the co-application of these materials impacts soil microbial communities under field conditions. A study was initiated in 2018 in Québec, QC, Canada and fine roots and rhizosphere soil were sampled to determine the effects of co-application of wood biochar (0, 10, and 20 Mg dry wt. ha−1) and PB (0 and 30 Mg wet wt. ha−1) on the percentage of corn (Zea mays L.) and soybean (Glycine max L. Merr.) root colonization by arbuscular mycorrhizal fungi (AMF), soil microbial biomass phosphorus (MBP) and microbial (Bacteria, Fungi and AMF) diversity and community structure in a temperate loamy soil. Co-applying PB and biochar increased soil MBP compared with the control and biochar-only application. Applying PB alone or with biochar increased the level of root colonization by AMF compared with the control and biochar-only application in soybean but not in corn. Overall, biochar and PB application had no significant effect on bacterial and AMF diversity and community structure compared with the control. However, applying PB alone or with biochar decreased the fungal alpha diversity (Shannon and Simpson indices), affected several fungal taxa abundances and shifted the fungal community structure as indicated by the principal coordination analysis (PCoA). Our results provided an understanding on the short-term effects of co-applied wood biochar and PB on microbial communities of a temperate loamy soil under field conditions, as well as scientific bases for further investigation.
{"title":"Short-term effects of co-applied biochar and paper mill biosolids on soil microbial communities under field conditions","authors":"Eric Manirakiza , Noura Ziadi , Vicky Lévesque , Mario Laterriere","doi":"10.1016/j.apsoil.2024.105718","DOIUrl":"10.1016/j.apsoil.2024.105718","url":null,"abstract":"<div><div>Biochar and paper mill biosolids (PB) are reported to improve soil fertility, crop growth and indirectly conditions for soil microbial communities. However, it is unclear how the co-application of these materials impacts soil microbial communities under field conditions. A study was initiated in 2018 in Québec, QC, Canada and fine roots and rhizosphere soil were sampled to determine the effects of co-application of wood biochar (0, 10, and 20 Mg dry wt. ha<sup>−1</sup>) and PB (0 and 30 Mg wet wt. ha<sup>−1</sup>) on the percentage of corn (<em>Zea mays</em> L.) and soybean (<em>Glycine</em> max L. Merr.) root colonization by arbuscular mycorrhizal fungi (AMF), soil microbial biomass phosphorus (MBP) and microbial (Bacteria, Fungi and AMF) diversity and community structure in a temperate loamy soil. Co-applying PB and biochar increased soil MBP compared with the control and biochar-only application. Applying PB alone or with biochar increased the level of root colonization by AMF compared with the control and biochar-only application in soybean but not in corn. Overall, biochar and PB application had no significant effect on bacterial and AMF diversity and community structure compared with the control. However, applying PB alone or with biochar decreased the fungal alpha diversity (Shannon and Simpson indices), affected several fungal taxa abundances and shifted the fungal community structure as indicated by the principal coordination analysis (PCoA). Our results provided an understanding on the short-term effects of co-applied wood biochar and PB on microbial communities of a temperate loamy soil under field conditions, as well as scientific bases for further investigation.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105718"},"PeriodicalIF":4.8,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-25DOI: 10.1016/j.apsoil.2024.105712
Yuan Du , Anlan Yu , Yuan Chi , Zelin Wang , Xinrui Han , Kaifang Liu , Qiuping Fan , Xin Hu , Rongxiao Che , Dong Liu
Revealing the relationships between the temperature sensitivity of soil organic matter decomposition (Q10) and microbial communities is critical to predict ecosystem feedbacks to global warming. However, the relationships are still far from well understood, especially within the low latitude regions. To address this knowledge gap, soil samples were collected from >100 cropland sites in Southwest China, a region with highly diverse climatic and environmental conditions. The results showed that Q10 values substantially varied across the region, ranging from 1.85 to 6.81, with an average value of 3.27. They were significantly positively correlated with the contents of soil organic carbon, while negatively correlated with the ratios of soil dissolved organic carbon to total organic carbon content. This indicates that soils with high organic carbon contents are more vulnerable to global warming. Further analysis suggested that Q10 values were positively correlated with soil microbial respiration rates, fungal abundance, prokaryotic diversity, and the relative abundance of copiotrophic microbial lineages, but negatively correlated with the proportions of oligotrophic microbes and microbial co-occurrence network degree. The structural equation modeling analysis suggested that soil organic carbon and its quality, as well as microbial attributes were the main factors explaining the variation in Q10 values. The findings in this study highlight the crucial and complex roles of soil microbiome in determining ecosystem feedbacks to global warming.
{"title":"Organic carbon decomposition temperature sensitivity positively correlates with the relative abundance of copiotrophic microbial taxa in cropland soils","authors":"Yuan Du , Anlan Yu , Yuan Chi , Zelin Wang , Xinrui Han , Kaifang Liu , Qiuping Fan , Xin Hu , Rongxiao Che , Dong Liu","doi":"10.1016/j.apsoil.2024.105712","DOIUrl":"10.1016/j.apsoil.2024.105712","url":null,"abstract":"<div><div>Revealing the relationships between the temperature sensitivity of soil organic matter decomposition (Q<sub>10</sub>) and microbial communities is critical to predict ecosystem feedbacks to global warming. However, the relationships are still far from well understood, especially within the low latitude regions. To address this knowledge gap, soil samples were collected from >100 cropland sites in Southwest China, a region with highly diverse climatic and environmental conditions. The results showed that Q<sub>10</sub> values substantially varied across the region, ranging from 1.85 to 6.81, with an average value of 3.27. They were significantly positively correlated with the contents of soil organic carbon, while negatively correlated with the ratios of soil dissolved organic carbon to total organic carbon content. This indicates that soils with high organic carbon contents are more vulnerable to global warming. Further analysis suggested that Q<sub>10</sub> values were positively correlated with soil microbial respiration rates, fungal abundance, prokaryotic diversity, and the relative abundance of copiotrophic microbial lineages, but negatively correlated with the proportions of oligotrophic microbes and microbial co-occurrence network degree. The structural equation modeling analysis suggested that soil organic carbon and its quality, as well as microbial attributes were the main factors explaining the variation in Q<sub>10</sub> values. The findings in this study highlight the crucial and complex roles of soil microbiome in determining ecosystem feedbacks to global warming.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105712"},"PeriodicalIF":4.8,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-22DOI: 10.1016/j.apsoil.2024.105695
Hengkang Xu , Chao Chen , Wenqing Chen , Zhuo Pang , Guofang Zhang , Weiwei Zhang , Haiming Kan
Microorganisms play a crucial role in the cycling and transformation of nitrogen (N) within ecosystems. However, there is limited understanding regarding the impact of vegetation restoration on soil N cycling. A field study investigated the effects of different vegetation restoration strategies on soil microbial N cycling in sandy deserts of northern China including the use of metagenomic sequencing technology. The restoration strategies included the planting of Bromus inermis Leyss (SB), Medicago sativa L. (AF), and combined planting of Salix babylonica L. and Bromus inermis Leyss (FG). Compared with the natural restoration (CK), the abundance of genes related to soil N nitrification and denitrification processes was found to be higher in the AF and SB restoration strategies. On the other hand, the SB strategy specifically led to an enrichment of genes linked to dissimilatory nitrate reduction to ammonium (DNRA). Compared with the CK, the abundance of amoC/pmoC, hao and nxrA involved in soil N nitrification were higher in AF. The diversity of the fungal community was more strongly influenced by various vegetation restoration strategies compared to bacteria. Interestingly, FG had no significant effect on bacterial and fungal diversity compared to CK. However, alpha diversity of fungal communities was lower in AF and higher in SB compared to the CK. Soil pH was positively related to functional genes that drive nitrification and denitrification processes (nirK, amoC/pmoC, and hao). N fixation and DNRA exhibited a negative correlation with both microbial biomass carbon and microbial biomass nitrogen. Consequently, the planting of AF and SB hold significant importance in promoting soil N cycling within degraded lands. The study offered valuable insights into the microbial functional potentials associated with long-term vegetation restoration efforts, potentially bearing significant implications for soil N cycling in the degraded lands of northern China.
{"title":"Metagenomics reveals soil nitrogen cycling after vegetation restoration: Influence of different vegetation restoration strategies","authors":"Hengkang Xu , Chao Chen , Wenqing Chen , Zhuo Pang , Guofang Zhang , Weiwei Zhang , Haiming Kan","doi":"10.1016/j.apsoil.2024.105695","DOIUrl":"10.1016/j.apsoil.2024.105695","url":null,"abstract":"<div><div>Microorganisms play a crucial role in the cycling and transformation of nitrogen (N) within ecosystems. However, there is limited understanding regarding the impact of vegetation restoration on soil N cycling. A field study investigated the effects of different vegetation restoration strategies on soil microbial N cycling in sandy deserts of northern China including the use of metagenomic sequencing technology. The restoration strategies included the planting of <em>Bromus inermis</em> Leyss (SB), <em>Medicago sativa</em> L. (AF), and combined planting of <em>Salix babylonica</em> L. and <em>Bromus inermis</em> Leyss (FG). Compared with the natural restoration (CK), the abundance of genes related to soil N nitrification and denitrification processes was found to be higher in the AF and SB restoration strategies. On the other hand, the SB strategy specifically led to an enrichment of genes linked to dissimilatory nitrate reduction to ammonium (DNRA). Compared with the CK, the abundance of <em>amoC/pmoC</em>, <em>hao</em> and <em>nxrA</em> involved in soil N nitrification were higher in AF. The diversity of the fungal community was more strongly influenced by various vegetation restoration strategies compared to bacteria. Interestingly, FG had no significant effect on bacterial and fungal diversity compared to CK. However, alpha diversity of fungal communities was lower in AF and higher in SB compared to the CK. Soil pH was positively related to functional genes that drive nitrification and denitrification processes (<em>nirK</em>, <em>amo</em>C/<em>pmo</em>C, and <em>hao</em>). N fixation and DNRA exhibited a negative correlation with both microbial biomass carbon and microbial biomass nitrogen. Consequently, the planting of AF and SB hold significant importance in promoting soil N cycling within degraded lands. The study offered valuable insights into the microbial functional potentials associated with long-term vegetation restoration efforts, potentially bearing significant implications for soil N cycling in the degraded lands of northern China.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105695"},"PeriodicalIF":4.8,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-21DOI: 10.1016/j.apsoil.2024.105699
Yuan Wang , Qinggui Wang , Binbin Huang , Yajuan Xing , Guoyong Yan , Guancheng Liu , Yun Zhang
Forest restoration is expanding globally, which involves dramatic changes in energy fluxes through soil ecosystem food webs. Soil nematodes are the most abundant animals and occupy multiple trophic positions, providing an excellent method to study energy transfer processes in soil micro-food webs. However, the driving mechanisms underlying the evolution of soil nematode energy flux during natural forest restoration remain poorly understood. Here, we selected an undisturbed native forest and four natural secondary forests (20, 32, 47, and 61 years) at different recovery stages as study sites to assess the effects of forest restoration on soil nematode community structure and energy flux. Results showed that forest restoration increased the abundance and diversity of nematode communities, but different trophic groups exhibited varying responses to forest restoration. The improvement of resources and abiotic environment was a key factor in increasing nematode abundance and diversity. The increase in root biomass and microbial biomass promoted the abundance of herbivores and microbivores, further leading to an increase in the number and diversity of omnivores-predators. The total energy flux of nematode community increased with forest restoration. Compared to 20 years, the total energy flux increased by 4.12 %, 132.56 %, and 176.68 % in 32, 47, and 61 years, respectively. However, they were all significantly lower than in the primary forest stage. Multiple regression analysis showed that soil properties, microbial characteristics, and root biomass contributed most to omnivores-predators and total energy flux. The random forest analysis showed that omnivores-predators, herbivores, and root biomass were the most important biotic factors in predicting soil nematode energy flux, together explained 32.8 % of the total energy flux variation. Meanwhile, soil organic carbon (SOC) and mean weight diameter (MWD) were identified as the most important abiotic factors for predicting nematode energy flux, together explained 10.1 % of the total energy flux variation. Microbial resources (microbial biomass) mainly indirectly regulate total energy flux by affecting the microbivores. These results provide direct evidence that, as forest restoration progresses, improved nutrient availability (e.g., SOC) and soil physical conditions (e.g., MWD), along with strengthened trophic interactions within the nematode community (e.g., predator-prey dynamics), collectively drive the overall energy flux within the nematode assemblage.
{"title":"Natural restoration after clear-cutting can increase the energy flux of soil nematode food web in temperate forests","authors":"Yuan Wang , Qinggui Wang , Binbin Huang , Yajuan Xing , Guoyong Yan , Guancheng Liu , Yun Zhang","doi":"10.1016/j.apsoil.2024.105699","DOIUrl":"10.1016/j.apsoil.2024.105699","url":null,"abstract":"<div><div>Forest restoration is expanding globally, which involves dramatic changes in energy fluxes through soil ecosystem food webs. Soil nematodes are the most abundant animals and occupy multiple trophic positions, providing an excellent method to study energy transfer processes in soil micro-food webs. However, the driving mechanisms underlying the evolution of soil nematode energy flux during natural forest restoration remain poorly understood. Here, we selected an undisturbed native forest and four natural secondary forests (20, 32, 47, and 61 years) at different recovery stages as study sites to assess the effects of forest restoration on soil nematode community structure and energy flux. Results showed that forest restoration increased the abundance and diversity of nematode communities, but different trophic groups exhibited varying responses to forest restoration. The improvement of resources and abiotic environment was a key factor in increasing nematode abundance and diversity. The increase in root biomass and microbial biomass promoted the abundance of herbivores and microbivores, further leading to an increase in the number and diversity of omnivores-predators. The total energy flux of nematode community increased with forest restoration. Compared to 20 years, the total energy flux increased by 4.12 %, 132.56 %, and 176.68 % in 32, 47, and 61 years, respectively. However, they were all significantly lower than in the primary forest stage. Multiple regression analysis showed that soil properties, microbial characteristics, and root biomass contributed most to omnivores-predators and total energy flux. The random forest analysis showed that omnivores-predators, herbivores, and root biomass were the most important biotic factors in predicting soil nematode energy flux, together explained 32.8 % of the total energy flux variation. Meanwhile, soil organic carbon (SOC) and mean weight diameter (MWD) were identified as the most important abiotic factors for predicting nematode energy flux, together explained 10.1 % of the total energy flux variation. Microbial resources (microbial biomass) mainly indirectly regulate total energy flux by affecting the microbivores. These results provide direct evidence that, as forest restoration progresses, improved nutrient availability (e.g., SOC) and soil physical conditions (e.g., MWD), along with strengthened trophic interactions within the nematode community (e.g., predator-prey dynamics), collectively drive the overall energy flux within the nematode assemblage.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105699"},"PeriodicalIF":4.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-21DOI: 10.1016/j.apsoil.2024.105694
Pierre Blondel , Benjamin Joubard , Adrien Rusch , Brice Giffard
Farming practices are known to affect soil fauna, which are essential for soil functioning. However, we lack quantitative assessment of the effect of several key farming practices, such as pesticide use or soil disturbance on several important soil taxa. In perennial crops such as vineyards, soil tillage and pesticide use are very intensive and may have major impacts on soil fauna. However, studies on such systems remain scarce. The aim of this study is to assess the response of springtail communities to soil management and pesticide use, while considering key physico-chemical parameters on 32 organic and conventional vineyards located in the southwest France. Our analyses revealed that soil organic matter and soil tillage had a positive impact on functional and taxonomic diversities of springtails. In addition, we found that the intensity of pesticide use and the diversity of active ingredients in particular, decreased the diversity of springtail communities. Surprisingly, soil copper concentration had no effect on abundance or diversity of springtail communities. Our study suggests that superficial tillage and less intensive pesticide applications can favor taxonomic and functional diversity of springtails, independently of certification schemes. Future studies should now investigate how these changes in community composition and diversity affect soil functioning.
{"title":"Pesticide use and soil disturbance shape springtail communities in vineyards","authors":"Pierre Blondel , Benjamin Joubard , Adrien Rusch , Brice Giffard","doi":"10.1016/j.apsoil.2024.105694","DOIUrl":"10.1016/j.apsoil.2024.105694","url":null,"abstract":"<div><div>Farming practices are known to affect soil fauna, which are essential for soil functioning. However, we lack quantitative assessment of the effect of several key farming practices, such as pesticide use or soil disturbance on several important soil taxa. In perennial crops such as vineyards, soil tillage and pesticide use are very intensive and may have major impacts on soil fauna. However, studies on such systems remain scarce. The aim of this study is to assess the response of springtail communities to soil management and pesticide use, while considering key physico-chemical parameters on 32 organic and conventional vineyards located in the southwest France. Our analyses revealed that soil organic matter and soil tillage had a positive impact on functional and taxonomic diversities of springtails. In addition, we found that the intensity of pesticide use and the diversity of active ingredients in particular, decreased the diversity of springtail communities. Surprisingly, soil copper concentration had no effect on abundance or diversity of springtail communities. Our study suggests that superficial tillage and less intensive pesticide applications can favor taxonomic and functional diversity of springtails, independently of certification schemes. Future studies should now investigate how these changes in community composition and diversity affect soil functioning.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105694"},"PeriodicalIF":4.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Phosphorus-solubilizing microorganisms (PSMs) are recognized as a sustainable ecological strategy to mitigate plant phosphorus (P) limitation. However, their efficacy in real-world production scenarios is not as consistent as observed in controlled laboratory conditions. To deepen our comprehension of PSMs in mitigating plant P limitation and evaluate the efficacy of combined amino acids (AA) and PSMs application in optimizing plant nutritional environments, we conducted a study, aiming to preliminary delineate the model of plant-microbe-soil interactions facilitated by this joint approach. Phyllostachys edulis seedlings were cultivated in phosphorus-limited soil with or without AA and PSMs application. We assessed treatment impacts on plant growth and soil nutrient conditions through plant biomass, root morphology, tissue nitrogen (N) and P content, soil N and P contents, rhizosphere microbial communities, and soil enzyme activities. Application of AA and PSMs significantly enhanced shoot growth of P. edulis seedlings, reduced root ratio, modified root morphology, increased N and P content in plant tissues, facilitated conversion of soil insoluble P to active forms, and raised total soil N, alkali-hydrolysable N, ammonium N, and nitrate content. Moreover, it influenced the structure and function of the soil microbial community. Notably, soil enzyme activities under the combined application exhibited distinctions from individual applications, demonstrating greater similarity to the treatment without AA and PSMs, which received no additional amendments. Our findings underscored the significant positive impact of the combined AA and PSMs application on P. edulis seedling growth, improving soil nutrient status, enriching plant growth-promoting rhizobacteria, and reducing soil diseases. However, plant-soil-microbe interactions induced by the combined application might differ from those observed with individual applications, necessitating further experimentation for a comprehensive understanding.
磷溶解微生物（PSMs）被认为是缓解植物磷（P）限制的一种可持续生态策略。然而，它们在实际生产环境中的功效并不像在受控实验室条件下观察到的那样一致。为了加深我们对 PSMs 在缓解植物磷限制方面的理解，并评估氨基酸（AA）和 PSMs 的联合应用在优化植物营养环境方面的功效，我们进行了一项研究，旨在通过这种联合方法初步构建植物-微生物-土壤相互作用的模型。我们在施用或不施用 AA 和 PSMs 的限磷土壤中栽培了 Phyllostachys edulis 幼苗。我们通过植物生物量、根系形态、组织中氮（N）和磷（P）含量、土壤中氮（N）和磷（P）含量、根瘤微生物群落和土壤酶活性来评估处理对植物生长和土壤养分条件的影响。施用 AA 和 PSMs 能显著促进水稻幼苗的生长，降低根系比率，改变根系形态，增加植物组织中的氮和磷含量，促进土壤中不溶性磷向活性形式的转化，提高土壤总氮、碱水解氮、铵态氮和硝酸盐含量。此外，它还影响了土壤微生物群落的结构和功能。值得注意的是，联合施用下的土壤酶活性与单独施用下的土壤酶活性有所不同，显示出与未施用 AA 和 PSMs 的处理更为相似，后者没有额外的改良剂。我们的研究结果表明，联合施用 AA 和 PSMs 对 P. edulis 幼苗生长、改善土壤养分状况、丰富植物生长促进根瘤菌和减少土壤病害有显著的积极影响。然而，联合施用所引起的植物-土壤-微生物之间的相互作用可能与单独施用所观察到的有所不同，因此有必要进行进一步的实验来全面了解。
{"title":"Enhancing phosphorus-solubilizing microorganism potential for alleviating plant phosphorus limitation through amino acid co-application","authors":"Wenhui Shi , Ying Zhu , Yijing Xing , Hangyan Wu , Yeqing Ying","doi":"10.1016/j.apsoil.2024.105714","DOIUrl":"10.1016/j.apsoil.2024.105714","url":null,"abstract":"<div><div>Phosphorus-solubilizing microorganisms (PSMs) are recognized as a sustainable ecological strategy to mitigate plant phosphorus (P) limitation. However, their efficacy in real-world production scenarios is not as consistent as observed in controlled laboratory conditions. To deepen our comprehension of PSMs in mitigating plant P limitation and evaluate the efficacy of combined amino acids (AA) and PSMs application in optimizing plant nutritional environments, we conducted a study, aiming to preliminary delineate the model of plant-microbe-soil interactions facilitated by this joint approach. <em>Phyllostachys edulis</em> seedlings were cultivated in phosphorus-limited soil with or without AA and PSMs application. We assessed treatment impacts on plant growth and soil nutrient conditions through plant biomass, root morphology, tissue nitrogen (N) and P content, soil N and P contents, rhizosphere microbial communities, and soil enzyme activities. Application of AA and PSMs significantly enhanced shoot growth of <em>P. edulis</em> seedlings, reduced root ratio, modified root morphology, increased N and P content in plant tissues, facilitated conversion of soil insoluble P to active forms, and raised total soil N, alkali-hydrolysable N, ammonium N, and nitrate content. Moreover, it influenced the structure and function of the soil microbial community. Notably, soil enzyme activities under the combined application exhibited distinctions from individual applications, demonstrating greater similarity to the treatment without AA and PSMs, which received no additional amendments. Our findings underscored the significant positive impact of the combined AA and PSMs application on <em>P. edulis</em> seedling growth, improving soil nutrient status, enriching plant growth-promoting rhizobacteria, and reducing soil diseases. However, plant-soil-microbe interactions induced by the combined application might differ from those observed with individual applications, necessitating further experimentation for a comprehensive understanding.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105714"},"PeriodicalIF":4.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-21DOI: 10.1016/j.apsoil.2024.105668
José Alberto Morón-Cruz , Felipe García-Oliva , Yunuen Tapia-Torres
<div><div>The conversion from natural ecosystems to intensive agriculture can promote different changes due to constant fertilization. Fertilizations provoke high dependency on nutrient inputs and produce changes in nutrient dynamics, microbial activity, and the composition of soil microbial communities. However, few studies evaluate the high dependency on nutrient inputs with biogeochemical, and enzymatic variables and link the results with nutrient stoichiometry analyses to understand the effect on nutrients availability, microbial activity and biogeochemical cycling. The aim of this work was to analyse the effect of agricultural land use and fertilization with organic and inorganic P on soil nutrient dynamics (C, N and P) in Andosols. We divided the article into three sections, the first one that identifies the effect of land use change on biogeochemical, enzymatic activities, and ecological stoichiometry variables and identifies the dominant processes in each plot to answer: does the sites work as open or closed systems in terms of nutrient exchange and energy? The second section uses the results obtained in section one in order to identify the stability of the biogeochemical variables individually due to the change in land use, calculates resistance and resilience indices, and finally, the third section, covers an incubation experiment on soils from an agricultural site and a pine-oak site, which were fertilized with organic and inorganic compounds with the same concentration of P. At the end of this experiment, the changes in microbial activity and biogeochemical and ecological stoichiometric variables, such as threshold element ratio (TER) were identified, contributing with our data to increase the knowledge about the effects of the changes in soil elemental stoichiometry associated to fertilization, on resistance and resilience of soil organic matter transformation, soil nutrients availability and enzymes synthesis. With the variables analysed in these sections we aim to answer the following questions: will organic agriculture modify the stability of soil nutrient transformation, organic nutrient stores and activity of enzymes that degrade organic matter? and, what effects will fertilization have on the enzymatic activities linked to phosphorus? Our results suggest that the availability of PO<sub>4</sub><sup>3−</sup> and NO<sub>3</sub><sup>−</sup> are the variables that explain most of the variance that affects the nutrient dynamics in the agricultural plot, concluding that this site depends on nutrient inputs and acts as an open system. We identified that most of the variables are highly resistant; however, the nitrification process shows high vulnerability (less resistance, lower than 0.5) and is affected by the change in land use. In the final section, we found that both types of fertilization (inorganic and organic) negatively affected the activity of the β-glucosidase (BG) enzyme (0.068 μmolPNP g<sup>−1</sup> h<sup>−1</sup> for the c
{"title":"Land use change and type of fertilization affect the stability and microbial activity, stoichiometry, and nutrient dynamics in agricultural and forest soils in Avándaro, México","authors":"José Alberto Morón-Cruz , Felipe García-Oliva , Yunuen Tapia-Torres","doi":"10.1016/j.apsoil.2024.105668","DOIUrl":"10.1016/j.apsoil.2024.105668","url":null,"abstract":"<div><div>The conversion from natural ecosystems to intensive agriculture can promote different changes due to constant fertilization. Fertilizations provoke high dependency on nutrient inputs and produce changes in nutrient dynamics, microbial activity, and the composition of soil microbial communities. However, few studies evaluate the high dependency on nutrient inputs with biogeochemical, and enzymatic variables and link the results with nutrient stoichiometry analyses to understand the effect on nutrients availability, microbial activity and biogeochemical cycling. The aim of this work was to analyse the effect of agricultural land use and fertilization with organic and inorganic P on soil nutrient dynamics (C, N and P) in Andosols. We divided the article into three sections, the first one that identifies the effect of land use change on biogeochemical, enzymatic activities, and ecological stoichiometry variables and identifies the dominant processes in each plot to answer: does the sites work as open or closed systems in terms of nutrient exchange and energy? The second section uses the results obtained in section one in order to identify the stability of the biogeochemical variables individually due to the change in land use, calculates resistance and resilience indices, and finally, the third section, covers an incubation experiment on soils from an agricultural site and a pine-oak site, which were fertilized with organic and inorganic compounds with the same concentration of P. At the end of this experiment, the changes in microbial activity and biogeochemical and ecological stoichiometric variables, such as threshold element ratio (TER) were identified, contributing with our data to increase the knowledge about the effects of the changes in soil elemental stoichiometry associated to fertilization, on resistance and resilience of soil organic matter transformation, soil nutrients availability and enzymes synthesis. With the variables analysed in these sections we aim to answer the following questions: will organic agriculture modify the stability of soil nutrient transformation, organic nutrient stores and activity of enzymes that degrade organic matter? and, what effects will fertilization have on the enzymatic activities linked to phosphorus? Our results suggest that the availability of PO<sub>4</sub><sup>3−</sup> and NO<sub>3</sub><sup>−</sup> are the variables that explain most of the variance that affects the nutrient dynamics in the agricultural plot, concluding that this site depends on nutrient inputs and acts as an open system. We identified that most of the variables are highly resistant; however, the nitrification process shows high vulnerability (less resistance, lower than 0.5) and is affected by the change in land use. In the final section, we found that both types of fertilization (inorganic and organic) negatively affected the activity of the β-glucosidase (BG) enzyme (0.068 μmolPNP g<sup>−1</sup> h<sup>−1</sup> for the c","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105668"},"PeriodicalIF":4.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1016/j.apsoil.2024.105697
Meryem El Jaouhari , Gaëlle Damour , Mathieu Coulis
Many agricultural practices used in conventional farming can have negative impacts on soil biodiversity and decomposition process. Conversion to organic farming could reduce the effect of these disturbances, but in situ consequences of these effects are still poorly investigated. In order to better support the ecological transition towards an organic agriculture in tropical agroecosystems, it is important to better understand the links between agricultural practices, soil macrofauna and the decomposition process. To reach this goal, we conducted a field experiment in banana agroecosystems in Martinique (Lesser Antilles). We selected six organic and six conventional banana fields located in two bioclimatic zones. In order to measure the microbial and macrofaunal contribution to decomposition, 264 litterbags, with either a small or large mesh size, were positioned and left in the field for three months. Glyphosate-contaminated and glyphosate-free banana leaf litters were tested. Biotic and abiotic field characteristics were measured. Our results confirmed the overall beneficial effect of converting to organic agriculture on the decomposition process (+24 %) for bananas leaf litter. Macrofaunal decomposition was increased more (55 %) than microbial decomposition (20 %), indicating that organic farming removes a constraint of conventional farming especially affecting macrofauna. Glyphosate contamination of the litter did not have a significant effect on overall litter decomposition. By using structural equations, we were able to link farming practices to macrofauna diversity and to decomposition process, through a cascading chain of effects. We found that organic farming enhanced macrofaunal contribution to decomposition by enhancing both macro-arthropod and earthworm richness by providing a diversity of microhabitats with dense and species-rich plant cover. Our results suggested a weak effect of the direct toxicity by glyphosate-contaminated litter ingestion, but an indirect effect of herbicides by destroying the soil weed cover providing resources and microhabitats for soil macrofauna. Soil weed cover thus appears to be an important element of the agroecosystem ensuring the sustainability of ecosystem processes.
{"title":"Relationship between farming practices, soil macrofauna and litter decomposition in organic versus conventional banana agroecosystems","authors":"Meryem El Jaouhari , Gaëlle Damour , Mathieu Coulis","doi":"10.1016/j.apsoil.2024.105697","DOIUrl":"10.1016/j.apsoil.2024.105697","url":null,"abstract":"<div><div>Many agricultural practices used in conventional farming can have negative impacts on soil biodiversity and decomposition process. Conversion to organic farming could reduce the effect of these disturbances, but in situ consequences of these effects are still poorly investigated. In order to better support the ecological transition towards an organic agriculture in tropical agroecosystems, it is important to better understand the links between agricultural practices, soil macrofauna and the decomposition process. To reach this goal, we conducted a field experiment in banana agroecosystems in Martinique (Lesser Antilles). We selected six organic and six conventional banana fields located in two bioclimatic zones. In order to measure the microbial and macrofaunal contribution to decomposition, 264 litterbags, with either a small or large mesh size, were positioned and left in the field for three months. Glyphosate-contaminated and glyphosate-free banana leaf litters were tested. Biotic and abiotic field characteristics were measured. Our results confirmed the overall beneficial effect of converting to organic agriculture on the decomposition process (+24 %) for bananas leaf litter. Macrofaunal decomposition was increased more (55 %) than microbial decomposition (20 %), indicating that organic farming removes a constraint of conventional farming especially affecting macrofauna. Glyphosate contamination of the litter did not have a significant effect on overall litter decomposition. By using structural equations, we were able to link farming practices to macrofauna diversity and to decomposition process, through a cascading chain of effects. We found that organic farming enhanced macrofaunal contribution to decomposition by enhancing both macro-arthropod and earthworm richness by providing a diversity of microhabitats with dense and species-rich plant cover. Our results suggested a weak effect of the direct toxicity by glyphosate-contaminated litter ingestion, but an indirect effect of herbicides by destroying the soil weed cover providing resources and microhabitats for soil macrofauna. Soil weed cover thus appears to be an important element of the agroecosystem ensuring the sustainability of ecosystem processes.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105697"},"PeriodicalIF":4.8,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-16DOI: 10.1016/j.apsoil.2024.105679
Haiying Cui , Raúl Ochoa-Hueso , Wei Sun , Juan Piñeiro , Sally A. Power , Juntao Wang , Brajesh K. Singh , Manuel Delgado-Baquerizo
Soil biodiversity and function are critical for supporting life and providing essential services for human beings on Earth. We know that soils are highly vulnerable to warming in terrestrial ecosystems. However, it remains unclear whether the legacies of pre-existing global changes can exacerbate the responses of soil biodiversity and function to warming. To address this knowledge gap, we conducted a four-month growth chamber experiment to investigate the responses of soil biodiversity - focusing on three fungal functional groups (soil pathogen, saprotroph and ectomycorrhizal richness) and soil multifunctionality (measured by seven enzyme activities associated with C, N, P, and S cycling) to simulated warming. The soils were collected from four groups of global change located within the same experimental station in Australia, which were subjected to multiple global change factors, including CO2 enrichment, altered precipitation patterns, irrigation and fertilization, and nutrient addition. In general, soil biodiversity and multifunctionality in soils previously subjected to global changes were more susceptible to warming than those in control soils (i.e., without pre-existing global changes). Different biotic and abiotic factors drove multifunctionality under ambient and warming conditions. Specifically, soil ectomycorrhizal diversity, primarily driven by soil pH, had a more significant positive influence on soil multifunctionality than soil properties under ambient conditions. These findings suggest that environmental filtering may also regulate the biodiversity of fungal functional groups and functions in soils subjected to pre-existing global changes. While under warming conditions, soil dissolved organic C was more important than soil biodiversity (i.e., saprotroph richness) in affecting soil multifunctionality. Our results demonstrate that the legacies of global changes may weaken the positive effects of soil biodiversity and its interactions with soil physicochemical properties in regulating soil functions in response to warming. Taken together, our work indicates that pre-existing global change legacies regulate the responses of multifunctionality to warming, with implication for understanding how climate change and soil legacies influence soil conservation in a warmer world.
{"title":"Pre-existing global change legacies regulate the responses of multifunctionality to warming","authors":"Haiying Cui , Raúl Ochoa-Hueso , Wei Sun , Juan Piñeiro , Sally A. Power , Juntao Wang , Brajesh K. Singh , Manuel Delgado-Baquerizo","doi":"10.1016/j.apsoil.2024.105679","DOIUrl":"10.1016/j.apsoil.2024.105679","url":null,"abstract":"<div><div>Soil biodiversity and function are critical for supporting life and providing essential services for human beings on Earth. We know that soils are highly vulnerable to warming in terrestrial ecosystems. However, it remains unclear whether the legacies of pre-existing global changes can exacerbate the responses of soil biodiversity and function to warming. To address this knowledge gap, we conducted a four-month growth chamber experiment to investigate the responses of soil biodiversity - focusing on three fungal functional groups (soil pathogen, saprotroph and ectomycorrhizal richness) and soil multifunctionality (measured by seven enzyme activities associated with C, N, P, and S cycling) to simulated warming. The soils were collected from four groups of global change located within the same experimental station in Australia, which were subjected to multiple global change factors, including CO<sub>2</sub> enrichment, altered precipitation patterns, irrigation and fertilization, and nutrient addition. In general, soil biodiversity and multifunctionality in soils previously subjected to global changes were more susceptible to warming than those in control soils (i.e., without pre-existing global changes). Different biotic and abiotic factors drove multifunctionality under ambient and warming conditions. Specifically, soil ectomycorrhizal diversity, primarily driven by soil pH, had a more significant positive influence on soil multifunctionality than soil properties under ambient conditions. These findings suggest that environmental filtering may also regulate the biodiversity of fungal functional groups and functions in soils subjected to pre-existing global changes. While under warming conditions, soil dissolved organic C was more important than soil biodiversity (i.e., saprotroph richness) in affecting soil multifunctionality. Our results demonstrate that the legacies of global changes may weaken the positive effects of soil biodiversity and its interactions with soil physicochemical properties in regulating soil functions in response to warming. Taken together, our work indicates that pre-existing global change legacies regulate the responses of multifunctionality to warming, with implication for understanding how climate change and soil legacies influence soil conservation in a warmer world.</div></div>","PeriodicalId":8099,"journal":{"name":"Applied Soil Ecology","volume":"204 ","pages":"Article 105679"},"PeriodicalIF":4.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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