Shift From Promotion to Inhibition: Factors Affecting Soil Organic Carbon Sequestration in Intensive Croplands of the North China Plain
文献类型：期刊论文
| 作者 | Li, Jing1,2,3,7; Xu, Susu1,3,7; Gong, Huarui1,2,4; Xu, Yan1,2,7; Lei, Shanqing1,3,7; Liu, Hongguang5; Liu, Deyao6 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2026-03-17 |
| 卷号 | N/A |
| 关键词 | carbon sequestration driving factors intensive agricultural regions random forest model soil organic carbon |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.70487 |
| 产权排序 | 1 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Soil organic carbon (SOC) dynamics are critical to maintaining the productivity and stability of cropland ecosystems. Intensive agricultural regions face risks of SOC loss due to high- intensity farming. As a core grain-producing area and a typical intensive agricultural system, the North China Plain (NCP) requires a clear understanding of the long-term evolution patterns of SOC to support sustainable carbon management. However, continuous long-term dynamic datasets and mechanistic drivers-particularly interactions at the interannual scale-remain scarce. This study integrates historical data (1980s) with a 13-year continuous dataset (2007-2020) from a network of 2463 fixed sampling sites to quantify changes in SOC stock across the NCP. Using Random Forest models, Structural Equation Modeling, and time-series analysis, we identified a 40-year SOC stock increase of 16.27 Mg C ha-1, with an average sequestration rate of 0.407 Mg C ha-1 year-1, exceeding prior model estimates (0.35 Mg C ha-1 year-1). Crucially, the role of precipitation as a driver underwent distinct phase transitions: Mean annual precipitation (MAP) positively promoted SOC accumulation during 2007-2010 but shifted to become the strongest negative driver in 2011-2015 due to alternating extreme rainfall and drought events, ultimately transitioning to indirect regulation via synergistic climate-nutrient effects from 2016 to 2020. These findings indicate that sustaining SOC accumulation under intensive agriculture requires climate-adaptive dynamic management strategies, including demand-based irrigation. The results reveal temporal transitions in SOC sequestration mechanisms, providing a scientific basis for climate-resilient carbon management strategies. |
| URL标识 | 查看原文 |
| WOS关键词 | CLIMATE EXTREMES ; STOCKS ; MANAGEMENT ; MATTER ; LAND ; CROP ; PRECIPITATION ; AGRICULTURE ; TEMPERATURE ; INCREASE |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001715881000001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221298]  |
| 专题 | 禹城站农业生态系统研究中心_外文论文 |
| 通讯作者 | Gong, Huarui; Liu, Hongguang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; 2.Shandong Dongying Inst Geog Sci, Dongying, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing, Peoples R China; 5.Shihezi Univ, Coll Water Conservancy & Architectural Engn, Shihezi, Peoples R China; 6.Univ Melbourne, Fac Sci, Sch Agr Food & Ecosyst Sci, Melbourne, Vic, Australia 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Jing,Xu, Susu,Gong, Huarui,et al. Shift From Promotion to Inhibition: Factors Affecting Soil Organic Carbon Sequestration in Intensive Croplands of the North China Plain[J]. LAND DEGRADATION & DEVELOPMENT,2026,N/A. |
| APA | Li, Jing.,Xu, Susu.,Gong, Huarui.,Xu, Yan.,Lei, Shanqing.,...&Liu, Deyao.(2026).Shift From Promotion to Inhibition: Factors Affecting Soil Organic Carbon Sequestration in Intensive Croplands of the North China Plain.LAND DEGRADATION & DEVELOPMENT,N/A. |
| MLA | Li, Jing,et al."Shift From Promotion to Inhibition: Factors Affecting Soil Organic Carbon Sequestration in Intensive Croplands of the North China Plain".LAND DEGRADATION & DEVELOPMENT N/A(2026). |
入库方式： OAI收割
来源：地理科学与资源研究所
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