Evaluating the performance of conservation practices under climate change scenarios in the Miyun Reservoir Watershed, China
文献类型：期刊论文
| 作者 | Qiu, Jiali1; Shen, Zhenyao1; Hou, Xiaoshu1; Xie, Hui1; Leng, Guoyong2 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2020-01-15 |
| 卷号 | 143页码:12 |
| 关键词 | Climate change SWAT Best Management Practices BMP efficiency BMP optimization Miyun Reservoir Watershed |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2019.105700 |
| 通讯作者 | Shen, Zhenyao(zyshen@bnu.edu.cn) |
| 英文摘要 | Climate change is one of the major challenges in watershed management systems. Rising air temperatures, increasing precipitation in winter, and decreasing precipitation in summer as well as increases in extreme weather events have increased flooding and droughts and further affected water quality in the Miyun Reservoir Watershed (MRW). This study used the Soil and Water Assessment Tool (SWAT) model with five downscaled general circulation models (GCMs) to quantify the impact of climate change on hydrology, soil erosion, nutrient cycling, and the performance of Best Management Practices (BMPs) at watershed scale, driven by RCPs 2.6, 4.5, and 8.5. Compared with the baseline scenario, the results indicated that climate variability, especially precipitation and temperature, had great effects on surface runoff, sediment yields, and nutrient losses and further significantly affected BMP efficiency, although the magnitudes of change differed among the RCPs. Monthly sediment and nutrient loads increased substantially in all climate change scenarios, especially in flood season, due to the increase in precipitation intensity. Although BMPs were identified to be not appreciably effective in controlling water balance, they were effective in reducing sediment and nutrient losses. Based on this case, a simulation-optimization framework was applied to develop future watershed management strategies with BMP configurations because of their climate adaptation benefits, water improvement targets, and economical cost. The results indicated that the discrepancy among different climate scenarios was reflected by the number and types of BMPs and their spatial distributions, especially structural BMPs. This study suggests that the increasing frequency of rainfall events may decrease the efficiency of BMPs in the MRW, and watershed management should be adjusted according to changing climate in the future. |
| WOS关键词 | NONPOINT-SOURCE POLLUTION ; LONG-TERM VARIATIONS ; MANAGEMENT-PRACTICES ; CHANGE IMPACTS ; LAND-USE ; PRACTICE IMPLEMENTATION ; REDUNDANCY ANALYSIS ; COST-EFFECTIVENESS ; RIVER-BASIN ; QUALITY |
| 资助项目 | National Natural Science Foundation of China[51579011] ; fund for Innovative Research Group of the National Natural Science Foundation of China[51721093] |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000505931400011 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; fund for Innovative Research Group of the National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/131534]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shen, Zhenyao |
| 作者单位 | 1.Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Jiali,Shen, Zhenyao,Hou, Xiaoshu,et al. Evaluating the performance of conservation practices under climate change scenarios in the Miyun Reservoir Watershed, China[J]. ECOLOGICAL ENGINEERING,2020,143:12. |
| APA | Qiu, Jiali,Shen, Zhenyao,Hou, Xiaoshu,Xie, Hui,&Leng, Guoyong.(2020).Evaluating the performance of conservation practices under climate change scenarios in the Miyun Reservoir Watershed, China.ECOLOGICAL ENGINEERING,143,12. |
| MLA | Qiu, Jiali,et al."Evaluating the performance of conservation practices under climate change scenarios in the Miyun Reservoir Watershed, China".ECOLOGICAL ENGINEERING 143(2020):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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