Impact of land use changes on catchment soil erosion and sediment yield in the northeastern China: A panel data model application
文献类型：期刊论文
| 作者 | Fang, Haiyan1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 35期号:5页码:540-549 |
| 关键词 | WaTEM/SEDEM Soil erosion Sediment yield Landscape metrics Panel data model |
| ISSN号 | 1001-6279 |
| DOI | 10.1016/j.ijsrc.2020.03.017 |
| 通讯作者 | Fang, Haiyan(fanghy@igsnrr.ac.cn) |
| 英文摘要 | Land use is an important factor influencing soil erosion and sediment yield (SESY). Regressing soil erosion intensity (SEI) and sediment yield (SY) to land use characteristics can provide necessary information for controlling soil loss. However, current simple regression methods emphasize cross sectional parameters, with less emphasis on temporal variability of relevant land use parameters so that the derived effects of land use change on SESY can be biased. Here, a panel data method was applied to quantify the impact of land use change on SESY in 1954, 1975, and 2015, based on the WaTEM/SEDEM model and seven landscape metrics for 25 reservoir catchments in northeastern China. The results indicate that SEI and area-specific SY (SSY) continuously decreased from 1954 to 2015, which were significantly correlated with landscape metrics such as area-edge metrics of mean patch area (AREA_MN), shape index of the mean related circumscribing circle (CIRCLE_MN), aggregation index of effective mesh size (MESH), patch cohesion index (COHESION), and diversity metrics such as Shannon's diversity index (SHDI), patch richness density (PRD), and modified Simpson's evenness index (MSIEI). The results suggested that catchment SESY can be reduced through decreasing mean patch area, patch mesh size, and physical connectivity of patches, enriching landscape types, and elongating land use patches. These findings are helpful to effectively implement soil conservation measures in northeastern China and similar regions worldwide. The current study also implies that the panel data approach will have beneficial potential applications in earth-science research fields. (C) 2020 International Research and Training Centre on Erosion and Sedimentation/the World Association for Sedimentation and Erosion Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | ECONOMIC-GROWTH ; TEMPORAL VARIATIONS ; CO2 EMISSIONS ; CONSUMPTION ; PATTERNS ; REGION ; SPECIFICATION ; EXPENDITURE ; ENVIRONMENT ; DELIVERY |
| 资助项目 | National Natural Science Foundation of China[41977066] ; National Natural Science Foundation of China[41571271] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000542222800009 |
| 出版者 | IRTCES |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162342]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fang, Haiyan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Haiyan. Impact of land use changes on catchment soil erosion and sediment yield in the northeastern China: A panel data model application[J]. INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2020,35(5):540-549. |
| APA | Fang, Haiyan.(2020).Impact of land use changes on catchment soil erosion and sediment yield in the northeastern China: A panel data model application.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,35(5),540-549. |
| MLA | Fang, Haiyan."Impact of land use changes on catchment soil erosion and sediment yield in the northeastern China: A panel data model application".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 35.5(2020):540-549. |
入库方式： OAI收割
来源：地理科学与资源研究所
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