Tracing coastal nonpoint sources of agricultural organic pollution based on soil sequestration and retention processes: A case study of the Yellow River Delta, China
文献类型：期刊论文
| 作者 | Wang, Youxiao2,5; Zhang, Zhaomin2,3; Zhao, Zhonghe4; Li, He5; Sun, Yingjun2; Huang, Chong5; Zhang, Banghua2; Liu, Gaohuan1,5 |
| 刊名 | JOURNAL OF CONTAMINANT HYDROLOGY
 |
| 出版日期 | 2026-02-01 |
| 卷号 | 277页码:104871 |
| 关键词 | Agricultural nonpoint source pollution Livestock and poultry Soil organic matter Chemical oxygen demand Yellow River Delta |
| ISSN号 | 0169-7722 |
| DOI | 10.1016/j.jconhyd.2026.104871 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | China has been confronted with severe agricultural nonpoint source pollution (AGNSP) from livestock and poultry, which increases chemical oxygen demand (COD). To explore the sources of COD in surface waters from the perspective of ecosystem processes, taking the coastal watershed of the Yellow River Delta (YRD) of China as a typical study area, we have adopted a method that integrates the scale and positioning of livestock and poultry breeding, a pollutant generation coefficient, and kernel density estimation (KDE) to assess the COD diffusion risk during watershed soil erosion processes. Moreover, verification and analysis were performed by combining soil sampling data with hydrological and water quality monitoring data for the estuary. Additionally, we selected Spearman's coefficient for correlation analysis between surface soil organic matter (SOM) and related naturalanthropogenic factors. The main conclusions are as follows: the terrestrial COD pollution risks generated by livestock and poultry significantly influence SOM (p < 0.001) and are most strongly correlated in non-arable lands, especially saline-alkali land (r(s) = 0.86) mainly because of natural soil erosion process. Arable land has the highest SOM concentrations but has lower correlations with the COD generation risks obtained by the KDE method, mainly because of cultivation activities. At the watershed scale, surface runoff is the dominant driver of estuarine COD fluxes but has certain dilution effects on COD concentrations. Furthermore, there usually exists the spillover effects of AGNSP from livestock and poultry usually occur due to the imbalanced distributions between the area of arable land and the supply of manure within watersheds. Our study provides an effective and rapid assessment method for determining the AGNSP risk of COD derived from livestock and poultry. |
| URL标识 | 查看原文 |
| WOS关键词 | NITROGEN ; MANAGEMENT ; CROPLAND ; CARBON ; SYSTEM |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001681187600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221015]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Zhao, Zhonghe; Sun, Yingjun |
| 作者单位 | 1.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China 2.Shandong Jianzhu Univ, Sch Surveying & Geoinformat, Jinan 250101, Peoples R China; 3.Shandong Inst Coalfield Geol Planning & Invest, Jinan 250104, Peoples R China; 4.Chinese Acad Agr Sci, Agr Informat Inst, Beijing 100081, Peoples R China; 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Geog Informat Sci & Technol, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wang, Youxiao,Zhang, Zhaomin,Zhao, Zhonghe,et al. Tracing coastal nonpoint sources of agricultural organic pollution based on soil sequestration and retention processes: A case study of the Yellow River Delta, China[J]. JOURNAL OF CONTAMINANT HYDROLOGY,2026,277:104871. |
| APA | Wang, Youxiao.,Zhang, Zhaomin.,Zhao, Zhonghe.,Li, He.,Sun, Yingjun.,...&Liu, Gaohuan.(2026).Tracing coastal nonpoint sources of agricultural organic pollution based on soil sequestration and retention processes: A case study of the Yellow River Delta, China.JOURNAL OF CONTAMINANT HYDROLOGY,277,104871. |
| MLA | Wang, Youxiao,et al."Tracing coastal nonpoint sources of agricultural organic pollution based on soil sequestration and retention processes: A case study of the Yellow River Delta, China".JOURNAL OF CONTAMINANT HYDROLOGY 277(2026):104871. |
入库方式： OAI收割
来源：地理科学与资源研究所
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