Assessing effects of source-sink landscape on non-point source pollution based on cell units of a small agricultural catchment
文献类型：期刊论文
| 作者 | Wang Jin-liang; Chen Cheng-long; Ni Jiu-pai; Xie De-ti; Guo Xi; Luo Zhi-jun; Zhao Yue |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 16期号:9页码:2048-2062 |
| 关键词 | Nutrient load Non-point source pollution Source sink Landscape index Small catchment |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-5268-8 |
| 文献子类 | Article |
| 英文摘要 | Ascertaining the relationship between source-sink landscape and non-point source (NPS) pollution is crucial for reducing NPS pollution, however, it is not easy to realize this target on cell unit scale. To reveal the relationships between source-sink landscape and NPS pollution based on cell units of a small catchment in the Three Gorges Reservoir Region (TGRR), the runoff and nutrient yields were simulated first by rainfall events on a cell unit scale based on the Annualized AGricultural Non-Point Source Pollution Model (AnnAGNPS). Landscape structure and pattern were quantified with source-sink landscape indicators based on cell units including landscape area indices and location-weighted landscape indices. The results showed that: the study case of small Wangjiagou catchment highlighted a good prediction capability of runoff and nutrient export by the AnnAGNPS model. Throughout the catchment, the spatial distribution trends of four location-weighted landscape indices were similar to the trends of simulated total nitrogen (TN) and total phosphorus (TP), which highlighted the importance of spatial arrangement of source and sink landscape types in a catchment when estimating pollutant loads. Results by Pearson correlation analysis indicated that the location-weighted landscape index provided a more comprehensive account of multiple factors, and can better reflect NPS-related nutrient loss than other landscape indices applied in single-factor analysis. This study provides new findings for applying the source-sink landscape indices based on cell units in small catchments to explain the effect of source-sink landscape on nutrient export based on cell unit, and helps improve the understanding of the correlation between source-sink landscape and NPS pollution. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000485301000006 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46572]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.9 |
| 推荐引用方式 GB/T 7714 | Wang Jin-liang,Chen Cheng-long,Ni Jiu-pai,et al. Assessing effects of source-sink landscape on non-point source pollution based on cell units of a small agricultural catchment[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(9):2048-2062. |
| APA | Wang Jin-liang.,Chen Cheng-long.,Ni Jiu-pai.,Xie De-ti.,Guo Xi.,...&Zhao Yue.(2019).Assessing effects of source-sink landscape on non-point source pollution based on cell units of a small agricultural catchment.JOURNAL OF MOUNTAIN SCIENCE,16(9),2048-2062. |
| MLA | Wang Jin-liang,et al."Assessing effects of source-sink landscape on non-point source pollution based on cell units of a small agricultural catchment".JOURNAL OF MOUNTAIN SCIENCE 16.9(2019):2048-2062. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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