Effects of vegetation loss and soil erosion intensity on soil carbon dynamics across landscape position: Evidence from China's Loess Plateau
文献类型：期刊论文
| 作者 | Song, Yu1,5; Yao, Yufei3; Kong, Weibo1,2,4; Guo, Liangchen1,2; Bao, Kaiqiang1; Qiu, Liping1,2,4; Shao, Mingan1,2,4; Wei, Xiaorong1,2 |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 396页码:109992 |
| 关键词 | Enzyme activities Soil erosion Soil carbon dynamics Vegetation loss |
| ISSN号 | 0167-8809 |
| DOI | 10.1016/j.agee.2025.109992 |
| 产权排序 | 5 |
| 文献子类 | Article |
| 英文摘要 | The role of plant in regulating soil carbon cycling is well recognized. However, this regulatory function is increasingly threatened by human-driven vegetation loss and intensified erosion, especially in ecologically fragile ecosystems. Despite their frequent co-occurrence, the interactive effects of these stressors on soil organic carbon (SOC) dynamics remain poorly understood. In this study, we conducted a field experiment on China's Loess Plateau to investigate the impacts of vegetation loss and soil erosion intensity on soil carbon processes, focusing on enzyme activities and SOC dynamics across landscape position. Our results showed that vegetation removal significantly reduced SOC by 0.63 %, along with declines in enzyme activities. These effects were more pronounced in surface soils (0-10 cm), under moderate erosion intensity (SOC: 1.19 % reduction), and in northern erosion-prone sites such as Suide (SD) in erosion areas. In contrast, deposition zones exhibited comparatively weaker responses in both SOC and enzyme activities following vegetation removal. Vegetation loss altered SOC regulation across geomorphic zones. In erosion areas, the controlling factor shifted from erosion intensity to climate, whereas in depositional zones, the contribution of nutrient stoichiometry became more pronounced . Structural equation modeling revealed contrasting pathways: enzyme suppression drove SOC loss in erosion zones, while nutrient stoichiometry shifts governed SOC in depositional zones. Our findings demonstrated that anthropogenic vegetation loss intensifies erosion-induced SOC loss by shifting its biogeochemical regulation, highlighting the critical need for integrated vegetation restoration and erosion control to stabilize soil carbon in vulnerable landscapes. |
| URL标识 | 查看原文 |
| WOS关键词 | MICROBIAL TURNOVER ; RESPONSES |
| WOS研究方向 | Agriculture ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001582025600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217454]  |
| 专题 | 黄河三角洲现代农业工程实验室_外文论文 |
| 通讯作者 | Wei, Xiaorong |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil & Water Conservat & Desertifica, Yangling 712100, Peoples R China; 2.Northwest A&F Univ, Coll Soil & Water Conservat Sci & Engn, Yangling 712100, Peoples R China; 3.Northwest Univ, Coll Urban & Environm Sci, Xian Key Lab Environm Simulat & Ecol Hlth Yellow R, Xian 710127, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 5.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Song, Yu,Yao, Yufei,Kong, Weibo,et al. Effects of vegetation loss and soil erosion intensity on soil carbon dynamics across landscape position: Evidence from China's Loess Plateau[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2026,396:109992. |
| APA | Song, Yu.,Yao, Yufei.,Kong, Weibo.,Guo, Liangchen.,Bao, Kaiqiang.,...&Wei, Xiaorong.(2026).Effects of vegetation loss and soil erosion intensity on soil carbon dynamics across landscape position: Evidence from China's Loess Plateau.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,396,109992. |
| MLA | Song, Yu,et al."Effects of vegetation loss and soil erosion intensity on soil carbon dynamics across landscape position: Evidence from China's Loess Plateau".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 396(2026):109992. |
入库方式： OAI收割
来源：地理科学与资源研究所
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