Geoderma Regional最新文献_第3页

Soil security assessment based on ethnopedological studies 基于人种学研究的土壤安全评价

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-05 DOI: 10.1016/j.geodrs.2025.e01035

Georgina Pérez-Rodríguez , Carlos Alberto Ortiz-Solorio , Ma. del Carmen Gutiérrez-Castorena , Atenógenes Leobardo Licona-Vargas , Javier Leonardo Toxqui-Roldan , Víctor Manuel Ordaz-Chaparro

Soil security assessment has been carried out on a regional or global scale using five dimensions that are difficult to assess due to lack of data, especially for connectivity. In contrast, ethnopedological studies are based on local knowledge of the soil and the value they place on their land, but their application is at the local level. The integration of these methodologies can overcome current limitations in data collection and in bridging scales and promote a more holistic approach to soil security assessment.

The objective of this research is to evaluate the soil security using an ethnopedological approach in a region of state-level agricultural significance in Mexico. The study employs an ethnopedological approach, encompassing five primary dimensions and proposing 17 sub-dimensions. The findings suggest that farmers contributed 60 % of the data, with the remaining 40 % comprising a blend of technical information and local soil knowledge, signifying a process of knowledge integration. The utilization of local soil knowledge facilitates not only the assessment of connectivity but also the determination of parameters for evaluating capacity, condition, capital, and codification. Furthermore, this approach yielded detailed maps for each of the dimensions, sub-dimensions, and levels of soil security for the five soil classes. The information can be beneficial for assessing soil security at the local level within the framework of small-scale farming, especially in countries with traditional knowledge and land management practices. In addition, it has the potential to play a key role in the formulation of public policy, particularly at the municipal level. This is due to its ability to enhance comprehension of the socio-cultural, and environmental dynamics of local areas.

土壤安全评估在区域或全球范围内进行，使用五个维度，由于缺乏数据，特别是连通性难以评估。相比之下，人种学研究是基于当地对土壤的了解和他们对土地的价值，但它们的应用是在地方一级。这些方法的综合可以克服目前在数据收集和衔接尺度方面的限制，促进对土壤安全评估采取更全面的办法。本研究的目的是利用民族志方法评估墨西哥国家级农业重要地区的土壤安全。该研究采用人种学方法，包括5个主要维度，并提出17个子维度。研究结果表明，农民贡献了60%的数据，剩下的40%混合了技术信息和当地土壤知识，表明了知识整合的过程。利用当地土壤知识不仅有助于评估连通性，还有助于确定评估能力、条件、资本和编纂的参数。此外，该方法还生成了五个土壤类别的每个维度、子维度和土壤安全级别的详细地图。这些信息有助于在小规模农业框架内评估地方一级的土壤安全，特别是在拥有传统知识和土地管理做法的国家。此外，它有潜力在制订公共政策方面发挥关键作用，特别是在市政一级。这是由于它能够增强对当地社会文化和环境动态的理解。

{"title":"Soil security assessment based on ethnopedological studies","authors":"Georgina Pérez-Rodríguez , Carlos Alberto Ortiz-Solorio , Ma. del Carmen Gutiérrez-Castorena , Atenógenes Leobardo Licona-Vargas , Javier Leonardo Toxqui-Roldan , Víctor Manuel Ordaz-Chaparro","doi":"10.1016/j.geodrs.2025.e01035","DOIUrl":"10.1016/j.geodrs.2025.e01035","url":null,"abstract":"<div><div>Soil security assessment has been carried out on a regional or global scale using five dimensions that are difficult to assess due to lack of data, especially for connectivity. In contrast, ethnopedological studies are based on local knowledge of the soil and the value they place on their land, but their application is at the local level. The integration of these methodologies can overcome current limitations in data collection and in bridging scales and promote a more holistic approach to soil security assessment.</div><div>The objective of this research is to evaluate the soil security using an ethnopedological approach in a region of state-level agricultural significance in Mexico. The study employs an ethnopedological approach, encompassing five primary dimensions and proposing 17 sub-dimensions. The findings suggest that farmers contributed 60 % of the data, with the remaining 40 % comprising a blend of technical information and local soil knowledge, signifying a process of knowledge integration. The utilization of local soil knowledge facilitates not only the assessment of connectivity but also the determination of parameters for evaluating capacity, condition, capital, and codification. Furthermore, this approach yielded detailed maps for each of the dimensions, sub-dimensions, and levels of soil security for the five soil classes. The information can be beneficial for assessing soil security at the local level within the framework of small-scale farming, especially in countries with traditional knowledge and land management practices. In addition, it has the potential to play a key role in the formulation of public policy, particularly at the municipal level. This is due to its ability to enhance comprehension of the socio-cultural, and environmental dynamics of local areas.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"44 ","pages":"Article e01035"},"PeriodicalIF":3.3,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145737978","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}

引用次数: 0

Historical manure application affects accumulation pattern of residue-derived carbon via promoting macro-aggregation in Andosols, Japan 历史施用粪肥通过促进宏观聚集影响日本安多索的残馀碳积累模式

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-05 DOI: 10.1016/j.geodrs.2025.e01037

Hideaki Yasuno, Han Lyu, Haruo Tanaka, Soh Sugihara

Managing post-harvest crop residues is key to maintaining soil organic carbon (SOC) for achieving sustainable agriculture and mitigating climate change. However, how historical land management and residue quality affect residue-derived carbon (C) accumulation and pattern through aggregate formation and stabilization remains unclear, especially in Andosols. We conducted a 450-day in-situ incubation experiment using ¹³C-labeled maize residues (leaf: C/N = 15; root: C/N = 30) at historical managed cropland (Andosols) in Tokyo, Japan, under three land managements—manure (M), chemical fertilizer (Cf), and no fertilizer (Nf). Soil samples collected at 20, 60, 120, and 450 days were fractionated into macroaggregates (>250 μm), microaggregates (53–250 μm), and the silt+clay fraction (<53 μm) and analyzed. After 450 days, the remaining proportions of residue-derived C were 23 % (leaf) and 29 % (root), with no significant differences among land managements. However, decomposition rates at 450 days estimated by two-pool first-order model were significantly lower in M (0.37 mg C kg⁻¹ day⁻¹) than in Cf (0.60), indicating that manure application affected the accumulation pattern of residue-derived C. Because the macroaggregate mass proportion was higher in M (82 %) than in Cf (70 %), historical manure application should promote the macroaggregate formation and enhance the physical protection of residue-derived C, resulting in higher residue-derived C in macroaggregates at 450 days in M (0.38 g C kg⁻¹) than in Cf (0.29). Overall, historical manure application caused the different accumulation pattern of residue-derived C especially at later period via macro-aggregation in Andosols, Japan.

管理收获后作物残茬是维持土壤有机碳（SOC）以实现可持续农业和减缓气候变化的关键。然而，历史上的土地管理和残留物质量如何通过聚集体的形成和稳定影响残留物衍生的碳(C)积累和模式尚不清楚，特别是在安多索尔。我们在日本东京的历史管理农田（Andosols）进行了为期450天的原位培养实验，使用13c标记的玉米残留物（叶片：C/N = 15；根部：C/N = 30），采用三种土地管理方式——粪肥(M)、化肥（Cf）和不施肥（Nf）。在20、60、120和450天采集的土壤样品被分成大团聚体（>250 μm）、微团聚体（53 - 250 μm）和粉土+粘土组分（<53 μm）并进行分析。450 d后，残馀碳的剩余比例分别为23%（叶片）和29%（根），不同土地管理方式间差异不显著。然而，两池一级模型估算的450 d分解率在M （0.37 mg C kg - 1 day - 1）显著低于Cf(0.60)，表明施用粪肥影响了残源碳的积累模式。由于M的大团聚体质量比例（82%）高于Cf(70%)，历史施用粪肥应促进大团聚体的形成，增强残源碳的物理保护。结果表明，在M中，450天大团聚体中残留衍生的碳含量（0.38 g C kg - 1）高于Cf（0.29）。总体而言，历史施肥导致日本安多索尔地区残馀源碳的累积模式不同，尤其是后期的宏观聚集。

{"title":"Historical manure application affects accumulation pattern of residue-derived carbon via promoting macro-aggregation in Andosols, Japan","authors":"Hideaki Yasuno, Han Lyu, Haruo Tanaka, Soh Sugihara","doi":"10.1016/j.geodrs.2025.e01037","DOIUrl":"10.1016/j.geodrs.2025.e01037","url":null,"abstract":"<div><div>Managing post-harvest crop residues is key to maintaining soil organic carbon (SOC) for achieving sustainable agriculture and mitigating climate change. However, how historical land management and residue quality affect residue-derived carbon (C) accumulation and pattern through aggregate formation and stabilization remains unclear, especially in Andosols. We conducted a 450-day <em>in-situ</em> incubation experiment using <sup>13</sup>C-labeled maize residues (leaf: C/<em>N</em> = 15; root: C/<em>N</em> = 30) at historical managed cropland (Andosols) in Tokyo, Japan, under three land managements—manure (M), chemical fertilizer (Cf), and no fertilizer (Nf). Soil samples collected at 20, 60, 120, and 450 days were fractionated into macroaggregates (>250 μm), microaggregates (53–250 μm), and the silt+clay fraction (<53 μm) and analyzed. After 450 days, the remaining proportions of residue-derived C were 23 % (leaf) and 29 % (root), with no significant differences among land managements. However, decomposition rates at 450 days estimated by two-pool first-order model were significantly lower in M (0.37 mg C kg<sup>−1</sup> day<sup>−1</sup>) than in Cf (0.60), indicating that manure application affected the accumulation pattern of residue-derived C. Because the macroaggregate mass proportion was higher in M (82 %) than in Cf (70 %), historical manure application should promote the macroaggregate formation and enhance the physical protection of residue-derived C, resulting in higher residue-derived C in macroaggregates at 450 days in M (0.38 g C kg<sup>−1</sup>) than in Cf (0.29). Overall, historical manure application caused the different accumulation pattern of residue-derived C especially at later period via macro-aggregation in Andosols, Japan.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"44 ","pages":"Article e01037"},"PeriodicalIF":3.3,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145685391","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}

引用次数: 0

Mapping sub-surface distribution of soil organic carbon stocks in South Africa's arid and semi-arid landscapes: Implications for land management and climate change mitigation 绘制南非干旱和半干旱地区土壤有机碳储量的地下分布：对土地管理和减缓气候变化的影响

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01022

Omosalewa Odebiri , Onisimo Mutanga , John Odindi , Rob Slotow , Paramu Mafongoya , Romano Lottering , Rowan Naicker , Trylee Nyasha Matongera , Mthembeni Mngadi

Soil organic carbon (SOC) stocks are critical for land management strategies and climate change mitigation. However, understanding SOC distribution in South Africa's arid and semi-arid regions remains a challenge due to data limitations, and the complex spatial and sub-surface variability in SOC stocks driven by desertification and land degradation. To support soil and land-use management practices, as well as advance climate change mitigation efforts, there is an urgent need to provide more precise SOC stock estimates within South Africa's arid and semi-arid regions. Hence, this study adopted remote-sensing approaches to determine the spatial sub-surface distribution of SOC stocks and the influence of environmental co-variates at four soil depths (i.e., 0-30 cm, 30-60 cm, 60-100 cm, and 100-200 cm). Using Extreme Gradient Boosting (XGBoost) and Random Forest (RF) regression-based algorithms, the study found the former (RMSE values ranging from 10.50 t/ha to 16.60 t/ha) to be a superior model of SOC than the latter (RMSE values ranging from 10.83 t/ha to 18.25 t/ha). Thereafter, using a variable importance analysis, the study demonstrated the influence of topo-climatic and soil texture on SOC stocks at different depths. The study further demonstrated that the top 100 cm of the soil profile contained more than 70 % of the total SOC stocks, with the topsoil (0–30 cm) accounting for 34 % of the total SOC. The models exhibited a general decreasing trend in SOC stocks across the first three soil depth intervals. Additionally, the study revealed substantial spatial variability in SOC stocks, with greater accumulation in the topsoil observed in central and northern regions, while deeper SOC storage was more pronounced in the eastern parts of the study area. Overall, these findings enhance the understanding of SOC dynamics in South Africa's arid and semi-arid landscapes and emphasizes the importance of considering site specific topo-climatic characteristics for sustainable land management and climate change mitigation.

土壤有机碳储量对土地管理战略和减缓气候变化至关重要。然而，由于数据的限制，以及荒漠化和土地退化导致的有机碳储量复杂的空间和地下变化，了解南非干旱和半干旱地区的有机碳分布仍然是一个挑战。为了支持土壤和土地利用管理做法，并推进减缓气候变化的努力，迫切需要在南非干旱和半干旱地区提供更精确的有机碳储量估算。因此，本研究采用遥感方法确定了0 ~ 30 cm、30 ~ 60 cm、60 ~ 100 cm和100 ~ 200 cm 4个土壤深度下有机碳储量的空间分布及环境协变量的影响。利用基于极端梯度增强（XGBoost）和随机森林（RF）的回归算法，研究发现前者（RMSE值为10.50 ~ 16.60 t/ha）比后者（RMSE值为10.83 ~ 18.25 t/ha）更适合土壤有机碳模型。在此基础上，利用变量重要度分析方法，研究了不同深度土壤的地形气候和土壤质地对有机碳储量的影响。研究进一步表明，土壤剖面前100 cm土壤有机碳储量占总有机碳储量的70%以上，其中表层土壤（0 ~ 30 cm）占总有机碳储量的34%。土壤有机碳储量在前3个土层深度区间总体呈下降趋势。此外，研究还揭示了土壤有机碳储量的显著空间差异，研究区中部和北部表层土壤有机碳积累较多，而东部表层土壤有机碳储量较深。总的来说，这些发现增强了对南非干旱和半干旱景观中有机碳动态的理解，并强调了考虑场地特定的地形气候特征对可持续土地管理和减缓气候变化的重要性。

{"title":"Mapping sub-surface distribution of soil organic carbon stocks in South Africa's arid and semi-arid landscapes: Implications for land management and climate change mitigation","authors":"Omosalewa Odebiri , Onisimo Mutanga , John Odindi , Rob Slotow , Paramu Mafongoya , Romano Lottering , Rowan Naicker , Trylee Nyasha Matongera , Mthembeni Mngadi","doi":"10.1016/j.geodrs.2025.e01022","DOIUrl":"10.1016/j.geodrs.2025.e01022","url":null,"abstract":"<div><div>Soil organic carbon (SOC) stocks are critical for land management strategies and climate change mitigation. However, understanding SOC distribution in South Africa's arid and semi-arid regions remains a challenge due to data limitations, and the complex spatial and sub-surface variability in SOC stocks driven by desertification and land degradation. To support soil and land-use management practices, as well as advance climate change mitigation efforts, there is an urgent need to provide more precise SOC stock estimates within South Africa's arid and semi-arid regions. Hence, this study adopted remote-sensing approaches to determine the spatial sub-surface distribution of SOC stocks and the influence of environmental co-variates at four soil depths (i.e., 0-30 cm, 30-60 cm, 60-100 cm, and 100-200 cm). Using Extreme Gradient Boosting (XGBoost) and Random Forest (RF) regression-based algorithms, the study found the former (RMSE values ranging from 10.50 t/ha to 16.60 t/ha) to be a superior model of SOC than the latter (RMSE values ranging from 10.83 t/ha to 18.25 t/ha). Thereafter, using a variable importance analysis, the study demonstrated the influence of topo-climatic and soil texture on SOC stocks at different depths. The study further demonstrated that the top 100 cm of the soil profile contained more than 70 % of the total SOC stocks, with the topsoil (0–30 cm) accounting for 34 % of the total SOC. The models exhibited a general decreasing trend in SOC stocks across the first three soil depth intervals. Additionally, the study revealed substantial spatial variability in SOC stocks, with greater accumulation in the topsoil observed in central and northern regions, while deeper SOC storage was more pronounced in the eastern parts of the study area. Overall, these findings enhance the understanding of SOC dynamics in South Africa's arid and semi-arid landscapes and emphasizes the importance of considering site specific topo-climatic characteristics for sustainable land management and climate change mitigation.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01022"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684586","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}

引用次数: 0

Response of soil nutrient losses to erosion-deposition processes and land use managements: A case study in southeastern Tigray of northern Ethiopia 土壤养分流失对侵蚀-沉积过程和土地利用管理的响应：以埃塞俄比亚北部提格雷东南部为例

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01032

Araya Kahsay, Selama Gebreslassie Yebyo, Yohannes Gerezihier Gebremedhin

Soil erosion is one of the major degradation processes posing far-reaching threats to production sustainability and food security, associated with its marked contribution to soil quality degradation. There have been substantial studies on nutrient losses by erosion in Ethiopia, but rarely have the redistribution/deposition process been considered. In this study, we compared soil and nutrient loss of shrublands, grasslands and croplands to examine their sensitivity to erosion and deposition and land use managements. Quantification of soil erosion and deposition was achieved through Unit Stream Power Soil Erosion and Deposition model. Furthermore, soil organic carbon (SOC), total nitrogen (TN) and available phosphorus (AP) concentrations of the three land use managements were measured and analyzed to 30 cm depth. The results exhibited that soil and nutrient loss and their associated cost were heavily explained by variations in land use management. The magnitude of soil eroded far exceeded that of deposited in croplands and grasslands, while it was almost comparable to deposition rate in shrublands. Nutrient stocks in shrublands were higher than those in grasslands and croplands. Land use contributions to nutrient loss showed the orders of grasslands (4.22 Gg) > croplands (3.91 Gg) > shrublands (0.71 Gg). Out of the total nutrients transported by erosion (i.e. 16.78 Gg), ca. 47.47 % (7.96 Gg) is left redistributed within the area through deposition, with the remaining 8.81 Gg (52.53 %) leaving the area. Nutrient loss due erosion is causing to an average annual economic loss of about 7.95 million US$, > 90 % of which is contributed by grasslands and croplands, while that shared by shrublands was relatively small. Results implied the importance to consider erosion and deposition processes while assessing soil and nutrient depletion to precisely assess economic implications of erosion. Grasslands and croplands are more prone to erosion than shrublands, emphasizing the need to consider for improved cultivation and grazing managements to monitor soil quality degradation induced through erosion.

土壤侵蚀是对生产可持续性和粮食安全构成深远威胁的主要退化过程之一，它显著地导致土壤质量退化。对埃塞俄比亚侵蚀造成的营养损失进行了大量研究，但很少考虑到再分配/沉积过程。在这项研究中，我们比较了灌丛、草地和农田的土壤和养分流失，以研究它们对侵蚀和沉积以及土地利用管理的敏感性。通过单元流功率土壤侵蚀与沉积模型实现了土壤侵蚀与沉积的量化。此外，对3种土地利用方式30 cm深度的土壤有机碳（SOC）、全氮（TN）和速效磷（AP）浓度进行了测定和分析。结果表明，土壤和养分流失及其相关成本在很大程度上可以由土地利用管理的变化来解释。土壤侵蚀量远远超过农田和草地的沉积量，而与灌丛地的沉积量基本相当。灌丛地的养分储量高于草地和农田。土地利用对养分流失的贡献大小依次为草地（4.22 Gg）、农田（3.91 Gg）、灌丛（0.71 Gg）。在侵蚀输送的总养分（16.78 Gg）中，约47.47% （7.96 Gg）通过沉积在区域内重新分配，其余8.81 Gg（52.53%）离开区域。侵蚀造成的养分损失每年平均造成约795万美元的经济损失，其中90%是由草地和农田造成的，而灌木地所承担的损失相对较小。结果表明，在评估土壤和养分枯竭时，考虑侵蚀和沉积过程对于准确评估侵蚀的经济影响至关重要。草地和农田比灌木地更容易受到侵蚀，这强调需要考虑改进耕作和放牧管理，以监测侵蚀引起的土壤质量退化。

{"title":"Response of soil nutrient losses to erosion-deposition processes and land use managements: A case study in southeastern Tigray of northern Ethiopia","authors":"Araya Kahsay, Selama Gebreslassie Yebyo, Yohannes Gerezihier Gebremedhin","doi":"10.1016/j.geodrs.2025.e01032","DOIUrl":"10.1016/j.geodrs.2025.e01032","url":null,"abstract":"<div><div>Soil erosion is one of the major degradation processes posing far-reaching threats to production sustainability and food security, associated with its marked contribution to soil quality degradation. There have been substantial studies on nutrient losses by erosion in Ethiopia, but rarely have the redistribution/deposition process been considered. In this study, we compared soil and nutrient loss of shrublands, grasslands and croplands to examine their sensitivity to erosion and deposition and land use managements. Quantification of soil erosion and deposition was achieved through Unit Stream Power Soil Erosion and Deposition model. Furthermore, soil organic carbon (SOC), total nitrogen (TN) and available phosphorus (AP) concentrations of the three land use managements were measured and analyzed to 30 cm depth. The results exhibited that soil and nutrient loss and their associated cost were heavily explained by variations in land use management. The magnitude of soil eroded far exceeded that of deposited in croplands and grasslands, while it was almost comparable to deposition rate in shrublands. Nutrient stocks in shrublands were higher than those in grasslands and croplands. Land use contributions to nutrient loss showed the orders of grasslands (4.22 Gg) > croplands (3.91 Gg) > shrublands (0.71 Gg). Out of the total nutrients transported by erosion (i.e. 16.78 Gg), ca. 47.47 % (7.96 Gg) is left redistributed within the area through deposition, with the remaining 8.81 Gg (52.53 %) leaving the area. Nutrient loss due erosion is causing to an average annual economic loss of about 7.95 million US$, > 90 % of which is contributed by grasslands and croplands, while that shared by shrublands was relatively small. Results implied the importance to consider erosion and deposition processes while assessing soil and nutrient depletion to precisely assess economic implications of erosion. Grasslands and croplands are more prone to erosion than shrublands, emphasizing the need to consider for improved cultivation and grazing managements to monitor soil quality degradation induced through erosion.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01032"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617856","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}

引用次数: 0

Corrigendum to ‘Mapping sub-surface distribution of soil organic carbon stocks in South Africa's arid and semi-arid landscapes: Implications for land management and climate change mitigation’ [Geoderma Regional Volume 37, 2024, e00817] “绘制南非干旱和半干旱景观土壤有机碳储量的地下分布：对土地管理和减缓气候变化的影响”的勘误表[Geoderma Regional Volume 37, 2024, e00817]

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01019

Omosalewa Odebiri , Onisimo Mutanga , John Odindi , Rob Slotow , Paramu Mafongoya , Romano Lottering , Rowan Naicker , Trylee Nyasha Matongera , Mthembeni Mngadi

引用次数: 0

An Observations Framework for data interoperability: Enabling descriptive regional data for soil and land management in the Australian context 数据互操作性的观察框架：在澳大利亚背景下为土壤和土地管理提供描述性区域数据

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01029

M. Wong , B. Simons , H. Gillett , N.J. Robinson , A. Neyland , P. Dahlhaus , A. MacLeod , H. Thompson

Regional resource management organisations and researchers require consistent soil data for effective knowledge transfer and monitoring. However, the data collected by soil practitioners can fall outside the data permissible in national and international interoperability efforts. This study fills a gap by delivering diverse data from farming groups, catchment managers, and university researchers via a unique ‘Observations Framework’ based on the observation and measurement (O&M) standard, not implementing soil domain model constraints.

One hundred and sixty-five individual soil properties were successfully described, resulting in the delivery of interoperable, region-specific soil data. A significant amount of data fell outside existing national soil model implementations, with only 30 % of chemical observation procedures related to the Australian Soil and Land Survey Handbook Series (ASLSH) standard, and 38 % lacking procedure descriptions altogether. Procedures for soil physics and biology measurements entirely outside the ASLSH. Contextual information, including sampling protocol, was generally absent or challenging to align with FAIR (Findable, Accessible, Interoperable, and Reusable) vocabularies.

Concluding lessons for delivering diverse regional FAIR soil data include the need to 1) Support standard metadata schema framework for FAIR soil data, understanding the value of context and data quality elements to end-users; 2) Develop and support well-governed FAIR vocabularies for soil through expert and community input, particularly on properties and sampling; and 3) Investigate the potential for AI in the delivery of soil data and information, including where graph technology and domain models may be beneficial, and where soil domain expertise is critical.

区域资源管理组织和研究人员需要一致的土壤数据来进行有效的知识转移和监测。然而，土壤从业者收集的数据可能超出国家和国际互操作性工作所允许的数据范围。本研究通过基于观察和测量（O&；M）标准的独特“观察框架”提供来自农业团体、流域管理者和大学研究人员的不同数据，而不是实施土壤领域模型约束，填补了这一空白。165个单独的土壤特性被成功描述，从而产生了可互操作的、特定区域的土壤数据。大量数据不在现有的国家土壤模型实施范围内，只有30%的化学观测程序与澳大利亚土壤和土地调查手册系列（ASLSH）标准相关，38%的程序完全没有描述。完全在ASLSH之外的土壤物理和生物测量程序。上下文信息，包括采样协议，通常不存在，或者很难与FAIR（可查找、可访问、可互操作和可重用）词汇表保持一致。提供不同区域FAIR土壤数据的总结经验包括：1)支持FAIR土壤数据的标准元数据模式框架，理解上下文和数据质量元素对最终用户的价值；2)通过专家和社区的投入，特别是在性质和采样方面，开发和支持治理良好的土壤公平词汇；3)调查人工智能在土壤数据和信息传递方面的潜力，包括图形技术和领域模型可能有益的地方，以及土壤领域专业知识至关重要的地方。

{"title":"An Observations Framework for data interoperability: Enabling descriptive regional data for soil and land management in the Australian context","authors":"M. Wong , B. Simons , H. Gillett , N.J. Robinson , A. Neyland , P. Dahlhaus , A. MacLeod , H. Thompson","doi":"10.1016/j.geodrs.2025.e01029","DOIUrl":"10.1016/j.geodrs.2025.e01029","url":null,"abstract":"<div><div>Regional resource management organisations and researchers require consistent soil data for effective knowledge transfer and monitoring. However, the data collected by soil practitioners can fall outside the data permissible in national and international interoperability efforts. This study fills a gap by delivering diverse data from farming groups, catchment managers, and university researchers via a unique ‘Observations Framework’ based on the observation and measurement (O&M) standard, not implementing soil domain model constraints.</div><div>One hundred and sixty-five individual soil properties were successfully described, resulting in the delivery of interoperable, region-specific soil data. A significant amount of data fell outside existing national soil model implementations, with only 30 % of chemical observation procedures related to the Australian Soil and Land Survey Handbook Series (ASLSH) standard, and 38 % lacking procedure descriptions altogether. Procedures for soil physics and biology measurements entirely outside the ASLSH. Contextual information, including sampling protocol, was generally absent or challenging to align with FAIR (Findable, Accessible, Interoperable, and Reusable) vocabularies.</div><div>Concluding lessons for delivering diverse regional FAIR soil data include the need to 1) Support standard metadata schema framework for FAIR soil data, understanding the value of context and data quality elements to end-users; 2) Develop and support well-governed FAIR vocabularies for soil through expert and community input, particularly on properties and sampling; and 3) Investigate the potential for AI in the delivery of soil data and information, including where graph technology and domain models may be beneficial, and where soil domain expertise is critical.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01029"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684584","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}

引用次数: 0

Modeling archaeological excavation-induced soil erosion in cultural heritage landscapes: A QGeoWEPP-based assessment at the Resuloğlu Mound, Türkiye 文化遗产景观中考古发掘引起的土壤侵蚀建模：基于qgeowepp的Resuloğlu土墩评估

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01018

Kemal Koçaklı , Chris S. Renschler , Dennis C. Flanagan , Ryan P. McGehee , Jonathan M. Harbor , Bülent Arıkan , Orkan Özcan

This study investigates how archaeological excavations influence runoff processes and soil erosion in a rangeland-dominated cultural landscape in North Central Anatolia, Türkiye. The Resuloğlu Mound, an archaeological settlement dating to the Early Bronze Age III period (c. 2300–2100 BCE), underwent excavations between 2003 and 2019. The site's current morphology indicates that soil erosion has significantly shaped the landscape throughout both ancient and modern periods. Assessing these landscape changes is essential for evaluating the long-term sustainability of archaeological sites, as soil erosion not only compromises the integrity of cultural heritage but also influences surrounding ecosystems and agricultural productivity.

This research employs an interdisciplinary approach to analyze natural hazards, including climate and weather pattern variability, and anthropogenic disturbances, within the context of immovable cultural heritage preservation and soil and water conservation in an agricultural rangeland landscape. Using a spatially explicit modeling framework, we investigate the interactions among land use, climate and weather pattern variability, and the complex dynamics of natural and human-induced processes within an agricultural rangeland and crop management setting. The study utilized the QGIS-based geospatial interface for the Water Erosion Prediction Project (QGeoWEPP) to simulate soil erosion rates before and after archaeological excavation.

In addition, the study explores proactive strategies to immovable cultural heritage, as well as the adjacent grazing rangelands and agricultural fields, to develop an integrated protection plan for these vulnerable sites and their stakeholders. The QGeoWEPP model is applied to eight hillslopes two undisturbed reference slopes and six disturbed—along with fields of major crops, where harvest yields are used to parameterize hydrology and plant growth within the model. The findings indicate that archaeological excavation disrupts slope stability, leading to elevated erosion rates immediately after disturbance, followed by a gradual decline over time. This study contributes to the scientific foundation of conservation policies aimed at preserving both natural and cultural landscapes through collaboration with local governments.

本研究探讨了考古发掘如何影响中北部安纳托利亚以牧场为主的文化景观的径流过程和土壤侵蚀。Resuloğlu土墩是一个可追溯到青铜时代早期（公元前2300-2100年）的考古定居点，在2003年至2019年期间进行了挖掘。该遗址目前的形态表明，土壤侵蚀在古代和现代时期都对景观产生了重大影响。评估这些景观变化对于评估考古遗址的长期可持续性至关重要，因为土壤侵蚀不仅会损害文化遗产的完整性，还会影响周围的生态系统和农业生产力。本研究采用跨学科的方法，分析了农业牧地景观中不可移动文化遗产保护和水土保持背景下的自然灾害，包括气候和天气模式变异以及人为干扰。利用空间显式建模框架，我们研究了土地利用、气候和天气模式变异之间的相互作用，以及农业牧场和作物管理环境中自然和人为过程的复杂动态。利用基于qgis的水土流失预测项目（QGeoWEPP）地理空间接口，模拟了考古发掘前后的土壤侵蚀速率。此外，本研究还探讨了保护不可移动文化遗产及其邻近放牧地和农田的积极策略，为这些脆弱遗址及其利益相关者制定综合保护计划。QGeoWEPP模型应用于8个山坡（2个未受干扰的参考山坡和6个受干扰的主要农作物田），其中收获产量用于参数化模型内的水文和植物生长。研究结果表明，考古挖掘破坏了边坡的稳定性，导致扰动后侵蚀速率立即升高，随后随时间逐渐下降。通过与地方政府的合作，本研究为旨在保护自然和文化景观的保护政策提供了科学依据。

{"title":"Modeling archaeological excavation-induced soil erosion in cultural heritage landscapes: A QGeoWEPP-based assessment at the Resuloğlu Mound, Türkiye","authors":"Kemal Koçaklı , Chris S. Renschler , Dennis C. Flanagan , Ryan P. McGehee , Jonathan M. Harbor , Bülent Arıkan , Orkan Özcan","doi":"10.1016/j.geodrs.2025.e01018","DOIUrl":"10.1016/j.geodrs.2025.e01018","url":null,"abstract":"<div><div>This study investigates how archaeological excavations influence runoff processes and soil erosion in a rangeland-dominated cultural landscape in North Central Anatolia, Türkiye. The Resuloğlu Mound, an archaeological settlement dating to the Early Bronze Age III period (c. 2300–2100 BCE), underwent excavations between 2003 and 2019. The site's current morphology indicates that soil erosion has significantly shaped the landscape throughout both ancient and modern periods. Assessing these landscape changes is essential for evaluating the long-term sustainability of archaeological sites, as soil erosion not only compromises the integrity of cultural heritage but also influences surrounding ecosystems and agricultural productivity.</div><div>This research employs an interdisciplinary approach to analyze natural hazards, including climate and weather pattern variability, and anthropogenic disturbances, within the context of immovable cultural heritage preservation and soil and water conservation in an agricultural rangeland landscape. Using a spatially explicit modeling framework, we investigate the interactions among land use, climate and weather pattern variability, and the complex dynamics of natural and human-induced processes within an agricultural rangeland and crop management setting. The study utilized the QGIS-based geospatial interface for the Water Erosion Prediction Project (QGeoWEPP) to simulate soil erosion rates before and after archaeological excavation.</div><div>In addition, the study explores proactive strategies to immovable cultural heritage, as well as the adjacent grazing rangelands and agricultural fields, to develop an integrated protection plan for these vulnerable sites and their stakeholders. The QGeoWEPP model is applied to eight hillslopes two undisturbed reference slopes and six disturbed—along with fields of major crops, where harvest yields are used to parameterize hydrology and plant growth within the model. The findings indicate that archaeological excavation disrupts slope stability, leading to elevated erosion rates immediately after disturbance, followed by a gradual decline over time. This study contributes to the scientific foundation of conservation policies aimed at preserving both natural and cultural landscapes through collaboration with local governments.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01018"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617857","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}

引用次数: 0

Soil management legacy provides resiliency to salinization: Insights of soil processes and indicators from a case study 土壤管理遗产提供了对盐碱化的弹性：从案例研究中了解土壤过程和指标

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01034

Aaron Lee M. Daigh , Umesh Acharya , Bijesh Maharjan , Thomas DeSutter

While individual management practices affecting soil salinity are well-documented, empirical evidence of their combined long-term protective effects under field conditions remains limited, and critical gaps persist in understanding how soil processes confer resilience. In 2018, a salinized soybean (Glycine max (L) Merr.) field from a persistently high-water table provided a unique opportunity to investigate this issue. Most of the field suffered severe plant damage and death, whereas a precise rectangular area in the southeast corner sustained healthy growth. This area corresponded exactly to decommissioned research plots managed with subsurface drains, no-till, gypsum, and cover crops (soil-health-legacy managed), which were absent elsewhere in the field (conventionally managed). In 2019, soil sampling along replicated transects between dead/damaged and living/thriving plants within each zone were analyzed for salinity, fertility, aggregation, and microbial community indices. No significant difference was observed in the conventionally managed zone between damaged and living areas. Within the soil-health-legacy zone, most chemical properties (6 out of 9), some microbial indicators (5 out of 14) and no physical properties significantly differed among areas with dead, damaged, or dying plants vs areas with living plants. These findings suggest that while some soil indicators may hint at salinization risk, they lack clear thresholds for practical interpretation. Therefore, we advise producers against over-reliance on soil health indices; instead, management processes should be targeted directly. This case study demonstrates that a history of combined subsurface drainage, no-till, gypsum, and cover crops protects crops from salinization through soil processes that soil indices alone do not reveal.

虽然影响土壤盐分的个别管理措施有充分的文献记录，但它们在田间条件下综合长期保护作用的经验证据仍然有限，而且在理解土壤过程如何赋予恢复力方面仍然存在重大差距。2018年，地下水位持续高的盐碱化大豆（Glycine max (L) Merr.）田为研究这一问题提供了独特的机会。大部分田地遭受了严重的植物损害和死亡，而东南角的一个精确的矩形区域却保持了健康的生长。这一区域正好与废弃的研究地块相对应，这些研究地块采用地下排水、免耕、石膏和覆盖作物（土壤健康遗产管理）进行管理，而这些在其他地方（传统管理）是不存在的。2019年，对每个区域内死亡/受损植物和活/繁荣植物之间的复制样带进行了土壤采样，分析了盐度、肥力、聚集性和微生物群落指数。在常规管理区，受损区和生活区之间没有观察到显著差异。在土壤健康遗产区，大多数化学性质（9分中的6分）、一些微生物指标（14分中的5分）和无物理性质在植物死亡、受损或垂死的地区与植物存活的地区之间存在显著差异。这些发现表明，虽然一些土壤指标可能暗示盐碱化风险，但它们缺乏实际解释的明确阈值。因此，我们建议生产者不要过度依赖土壤健康指数；相反，应该直接针对管理过程。本案例研究表明，地下排水、免耕、石膏和覆盖作物组合的历史可以通过土壤过程保护作物免受盐碱化，而土壤指数本身无法揭示这一过程。

{"title":"Soil management legacy provides resiliency to salinization: Insights of soil processes and indicators from a case study","authors":"Aaron Lee M. Daigh , Umesh Acharya , Bijesh Maharjan , Thomas DeSutter","doi":"10.1016/j.geodrs.2025.e01034","DOIUrl":"10.1016/j.geodrs.2025.e01034","url":null,"abstract":"<div><div>While individual management practices affecting soil salinity are well-documented, empirical evidence of their combined long-term protective effects under field conditions remains limited, and critical gaps persist in understanding how soil processes confer resilience. In 2018, a salinized soybean (<em>Glycine</em> max (L) Merr.) field from a persistently high-water table provided a unique opportunity to investigate this issue. Most of the field suffered severe plant damage and death, whereas a precise rectangular area in the southeast corner sustained healthy growth. This area corresponded exactly to decommissioned research plots managed with subsurface drains, no-till, gypsum, and cover crops (soil-health-legacy managed), which were absent elsewhere in the field (conventionally managed). In 2019, soil sampling along replicated transects between dead/damaged and living/thriving plants within each zone were analyzed for salinity, fertility, aggregation, and microbial community indices. No significant difference was observed in the conventionally managed zone between damaged and living areas. Within the soil-health-legacy zone, most chemical properties (6 out of 9), some microbial indicators (5 out of 14) and no physical properties significantly differed among areas with dead, damaged, or dying plants vs areas with living plants. These findings suggest that while some soil indicators may hint at salinization risk, they lack clear thresholds for practical interpretation. Therefore, we advise producers against over-reliance on soil health indices; instead, management processes should be targeted directly. This case study demonstrates that a history of combined subsurface drainage, no-till, gypsum, and cover crops protects crops from salinization through soil processes that soil indices alone do not reveal.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01034"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684677","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}

引用次数: 0

Sewage sludge and its biochar as organic amendments: Modulating microbial activity, nutrient dynamics, and chemical properties in sandy soil cultivated with sugarcane 污泥及其生物炭作为有机改良剂：调节甘蔗栽培沙土中微生物活性、营养动态和化学性质

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-12-01 DOI: 10.1016/j.geodrs.2025.e01036

Caio Nunes Gonçalves , Felipe José Cury Fracetto , William Ramos da Silva , Thiago Massao Inagaki , Renato Lemos dos Santos , Giselle Gomes Monteiro Fracetto , Ademir de Oliveira Ferreira

Sewage sludge-derived biochar, a carbon-rich material produced by the pyrolysis of sewage sludge, has emerged as a promising amendment for enhancing the fertility and biological quality of nutrient-poor sandy soils in tropical regions. We investigated the effects of sewage sludge (SS) and its biochar (SSB) on microbial indicators, nutrient dynamics, and sugarcane biomass growth in sandy soil over 120 days. Treatments included individual applications of SS (40 Mg ha⁻¹) and SSB (20 Mg ha⁻¹), their combinations at 75:25, 50:50, and 25:75 SS:SSB ratios, a mineral fertilizer, and an unfertilized control. Microbial biomass carbon (Cmic), basal C-CO₂ flux, metabolic (qCO₂) and microbial (qMic) quotients were monitored, along with ammonium and nitrate levels, available phosphorus (P), and carbon stock. SS promoted a rapid rise in microbial activity and Cmic, whereas SSB sustained these effects over time, demonstrating complementary roles. The 75:25 combination exhibited the strongest synergistic response, enhancing microbial efficiency (higher qMic and lower qCO₂), P availability, and carbon storage. Ammonium and nitrate peaked during early and mid-stages, respectively, with the highest values under SS. At the same time, P availability and soil carbon stocks were maximized under 75:25. Sugarcane biomass increased significantly in this treatment, despite foliar N and P concentrations remaining below sufficiency levels. These results highlight clear synergistic interactions between SS and SSB, emphasizing that the 75:25 combination offers a balanced strategy to improve nutrient cycling, microbial functionality, and carbon stabilization in tropical sandy soils.

污水污泥衍生的生物炭是一种由污水污泥热解产生的富含碳的材料，已成为提高热带地区营养贫乏的沙质土壤肥力和生物质量的有希望的改良剂。研究了污水污泥（SS）及其生物炭（SSB）对沙质土壤微生物指标、养分动态和甘蔗生物量生长的影响。处理包括单独施用SS （40 Mg ha - 1）和SSB (20 Mg ha - 1)，它们以75:25、50:50和25:75的SS:SSB比例组合施用，施用矿物肥和不施肥的对照。监测微生物生物量碳（Cmic）、基础C-CO2通量、代谢（qCO2）和微生物（qMic）商，以及铵态氮和硝态氮水平、有效磷(P)和碳储量。SS促进了微生物活性和Cmic的快速上升，而SSB随着时间的推移维持了这些影响，显示出互补的作用。75:25组合表现出最强的协同效应，提高了微生物效率（更高的qMic和更低的qCO2）、磷有效性和碳储量。铵态氮和硝态氮含量分别在前期和中期达到峰值，其中SS处理最高。同时，磷有效性和土壤碳储量在75:25处理下达到最大值。尽管叶片氮磷浓度仍低于充足水平，但该处理显著增加了甘蔗生物量。这些结果强调了SS和SSB之间明显的协同作用，强调75:25的组合提供了改善热带沙质土壤养分循环、微生物功能和碳稳定的平衡策略。

{"title":"Sewage sludge and its biochar as organic amendments: Modulating microbial activity, nutrient dynamics, and chemical properties in sandy soil cultivated with sugarcane","authors":"Caio Nunes Gonçalves , Felipe José Cury Fracetto , William Ramos da Silva , Thiago Massao Inagaki , Renato Lemos dos Santos , Giselle Gomes Monteiro Fracetto , Ademir de Oliveira Ferreira","doi":"10.1016/j.geodrs.2025.e01036","DOIUrl":"10.1016/j.geodrs.2025.e01036","url":null,"abstract":"<div><div>Sewage sludge-derived biochar, a carbon-rich material produced by the pyrolysis of sewage sludge, has emerged as a promising amendment for enhancing the fertility and biological quality of nutrient-poor sandy soils in tropical regions. We investigated the effects of sewage sludge (SS) and its biochar (SSB) on microbial indicators, nutrient dynamics, and sugarcane biomass growth in sandy soil over 120 days. Treatments included individual applications of SS (40 Mg ha<sup>−1</sup>) and SSB (20 Mg ha<sup>−1</sup>), their combinations at 75:25, 50:50, and 25:75 SS:SSB ratios, a mineral fertilizer, and an unfertilized control. Microbial biomass carbon (Cmic), basal C-CO<sub>2</sub> flux, metabolic (qCO<sub>2</sub>) and microbial (qMic) quotients were monitored, along with ammonium and nitrate levels, available phosphorus (P), and carbon stock. SS promoted a rapid rise in microbial activity and Cmic, whereas SSB sustained these effects over time, demonstrating complementary roles. The 75:25 combination exhibited the strongest synergistic response, enhancing microbial efficiency (higher qMic and lower qCO<sub>2</sub>), P availability, and carbon storage. Ammonium and nitrate peaked during early and mid-stages, respectively, with the highest values under SS. At the same time, P availability and soil carbon stocks were maximized under 75:25. Sugarcane biomass increased significantly in this treatment, despite foliar N and P concentrations remaining below sufficiency levels. These results highlight clear synergistic interactions between SS and SSB, emphasizing that the 75:25 combination offers a balanced strategy to improve nutrient cycling, microbial functionality, and carbon stabilization in tropical sandy soils.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"44 ","pages":"Article e01036"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145685392","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}

引用次数: 0

The role of autumn crop-coverage in nitrate leaching: A Daisy model scenario analysis comparing catch-crops and winter cereals across multiple sites and climatic conditions in Denmark 秋季作物覆盖在硝酸盐淋失中的作用：Daisy模型情景分析比较了丹麦多个地点和气候条件下的捕捞作物和冬季谷物

IF 3.3 2区农林科学 Q2 SOIL SCIENCE

Geoderma Regional

Pub Date : 2025-11-27 DOI: 10.1016/j.geodrs.2025.e01033

Magdalena Vinkler Schwartzkopff , Per Abrahamsen , Jørgen Eriksen , Lars Stoumann Jensen

Understanding the intra-annual dynamics of nitrogen (N) turnover across entire crop rotations is essential for minimizing N losses, as these dynamics carry legacy effects spanning agrohydrological years. While catch-crops (CCs) are widely adopted to mitigate N leaching, there is uncertainty of how their effectiveness varies across soil conditions and climates. This study used the agroecological model Daisy to evaluate regional variations, caused by differences in soil- and climatic-conditions, on N leaching in crop rotations with varying proportions of CCs, spring-, and winter-cereals as crop cover. This study utilized four soil types, from coarse sand to clay, and constructed eight 24-year crop rotation scenarios to quantify how differing levels of CC and winter cereal cover reduced annual N leaching and affected other key N-dynamics. Results confirmed that soil type alone could not explain differences in N leaching across crop rotations, but conditions such as early CC termination, restricted root development, high autumn precipitation, and percolation patterns, meant that winter wheat as an autumn cover could be equally effective as CCs in reducing annual N leaching. Although increasing CC-cover generally led to a near-linear reduction in N leaching, the magnitude of reduction varied depending on soil, CC species, and annual weather variability, ranging from 9 to 75 %. Differences between rotations could be largely explained by accounting for the intra-annual dynamics of N cycling. Finally, the high annual and site-specific variability in N leaching highlights the need for adaptive management strategies to ensure consistent reductions under increasingly unpredictable weather conditions.

了解整个作物轮作中氮(N)周转量的年内动态对于最大限度地减少氮损失至关重要，因为这些动态具有跨越农业水文年的遗留效应。虽然捕捞作物（CCs）被广泛采用来缓解氮淋失，但它们的有效性在不同的土壤条件和气候下是如何变化的还不确定。本研究使用农业生态模型Daisy来评估不同比例的碳水化合物、春粮和冬粮作为作物覆盖的轮作中，土壤和气候条件差异对氮淋溶的区域差异。本研究利用从粗砂到粘土的4种土壤类型，构建了8个24年轮作情景，以量化不同水平的CC和冬季谷物覆盖如何减少年氮淋溶并影响其他关键的氮动力学。结果证实，土壤类型不能单独解释不同作物轮作中氮淋失的差异，但早期CC终止、根系发育受限、秋季高降水和渗透模式等条件意味着冬小麦作为秋季覆盖可以与CC一样有效地减少年氮淋失。虽然增加CC覆盖通常会导致N淋溶的近线性减少，但减少的幅度因土壤、CC种类和年天气变化而异，从9%到75%不等。在很大程度上，轮换之间的差异可以通过计算N循环的年内动态来解释。最后，氮淋溶的高年度和地点特异性变异性突出了适应性管理策略的必要性，以确保在日益不可预测的天气条件下持续减少。

{"title":"The role of autumn crop-coverage in nitrate leaching: A Daisy model scenario analysis comparing catch-crops and winter cereals across multiple sites and climatic conditions in Denmark","authors":"Magdalena Vinkler Schwartzkopff , Per Abrahamsen , Jørgen Eriksen , Lars Stoumann Jensen","doi":"10.1016/j.geodrs.2025.e01033","DOIUrl":"10.1016/j.geodrs.2025.e01033","url":null,"abstract":"<div><div>Understanding the intra-annual dynamics of nitrogen (N) turnover across entire crop rotations is essential for minimizing N losses, as these dynamics carry legacy effects spanning agrohydrological years. While catch-crops (CCs) are widely adopted to mitigate N leaching, there is uncertainty of how their effectiveness varies across soil conditions and climates. This study used the agroecological model Daisy to evaluate regional variations, caused by differences in soil- and climatic-conditions, on N leaching in crop rotations with varying proportions of CCs, spring-, and winter-cereals as crop cover. This study utilized four soil types, from coarse sand to clay, and constructed eight 24-year crop rotation scenarios to quantify how differing levels of CC and winter cereal cover reduced annual N leaching and affected other key N-dynamics. Results confirmed that soil type alone could not explain differences in N leaching across crop rotations, but conditions such as early CC termination, restricted root development, high autumn precipitation, and percolation patterns, meant that winter wheat as an autumn cover could be equally effective as CCs in reducing annual N leaching. Although increasing CC-cover generally led to a near-linear reduction in N leaching, the magnitude of reduction varied depending on soil, CC species, and annual weather variability, ranging from 9 to 75 %. Differences between rotations could be largely explained by accounting for the intra-annual dynamics of N cycling. Finally, the high annual and site-specific variability in N leaching highlights the need for adaptive management strategies to ensure consistent reductions under increasingly unpredictable weather conditions.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"44 ","pages":"Article e01033"},"PeriodicalIF":3.3,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145685393","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}

引用次数: 0