Contribution of ecological conservation programs and climate change to hydrological regime change in the source region of the Yangtze River in China
文献类型：期刊论文
| 作者 | Luo, Kaisheng1,2 |
| 刊名 | REGIONAL ENVIRONMENTAL CHANGE
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 22期号:1页码:14 |
| 关键词 | Ecological conservation programs Hydrological impact Climate change Streamflow Water retention |
| ISSN号 | 1436-3798 |
| DOI | 10.1007/s10113-021-01874-z |
| 通讯作者 | Luo, Kaisheng(luokaisheng@cigit.ac.cn) |
| 英文摘要 | Although their effectiveness has drawn some attention, the unique impact of ecological conservation programs on hydrology and the comparative relationship between these effects and those of climate change remain unclear. We developed a method to quantitatively evaluate the hydrological effect of ecological conservation programs by combining a hydrological model and mathematical method and assessed the hydrological changes attributed to ecological conservation programs (2005-2015) in the source region of the Yangtze River in China. Through improved water retention capacity, ecological conservation programs induce annual streamflow decreased by 57% and the summer flood decreased by 78%, decreasing these streamflow amounts by 60.71 m(3)center dot s(-1) and 160.14 m(3)center dot s(-1), respectively. The ecological conservation programs decreased the streamflow concentration degree in the summer-flood season, indicating reduced river flood risk. However, climate change increased annual streamflow by 167.44 m(3)center dot s(-1), which offset a large part of the decreased annual streamflow caused by the ecological conservation programs. Streamflow and streamflow concentration degree in the summer flood season increased by 366.16 m(3)center dot s(-1) and 0.27, respectively, resulting in a final increase of 206.02 m(3)center dot s(-1) in annual streamflow in the summer-flood season and an increased flood risk, offsetting some of the positive effects of ecological conservation programs. The ecological conservation programs generally exhibited beneficial hydrological effects; however, these improvements were largely nullified by the negative effects of climate change. |
| 资助项目 | National Natural Science Foundation of China[41801200] ; Independent Deployment Foundation of the Chongqing Institute of Green and Intelligent Technology, CAS[2020000062] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000741396400001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14914]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Luo, Kaisheng |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400174, Peoples R China 2.Univ Chinese Acad Sci, Chongqing Sch, Chongqing 400174, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Kaisheng. Contribution of ecological conservation programs and climate change to hydrological regime change in the source region of the Yangtze River in China[J]. REGIONAL ENVIRONMENTAL CHANGE,2022,22(1):14. |
| APA | Luo, Kaisheng.(2022).Contribution of ecological conservation programs and climate change to hydrological regime change in the source region of the Yangtze River in China.REGIONAL ENVIRONMENTAL CHANGE,22(1),14. |
| MLA | Luo, Kaisheng."Contribution of ecological conservation programs and climate change to hydrological regime change in the source region of the Yangtze River in China".REGIONAL ENVIRONMENTAL CHANGE 22.1(2022):14. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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