Impact of Hydropower Dam Development on River Ecosystems: Ecopath Model Application on the Red River in China as an Example

doi:10.15244/pjoes/73805

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山区发展研究中心

	Impact of Hydropower Dam Development on River Ecosystems: Ecopath Model Application on the Red River in China as an Example
	Wang, Xu-Xi1,2 ; Peng, Li1,2 ; Su, Chun-Jiang1 ; Cheng, Gen-Wei1
刊名	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
	2017
卷号	26 期号:6 页码:2811-2821
关键词	Hydropower Development Ecopath Trophic Level River Ecosystems Red River
ISSN号	1230-1485
DOI	10.15244/pjoes/73805
通讯作者	Li Peng
英文摘要	In order to reveal the influence of hydropower development on river ecology, we selected a number of research sites, including a natural channel (NC), a channel reservoir (CR), and a channel below the dam (CB) of a certain dam-type hydropower station on the Red River in China. We used the Ecopath model to analyze the differences in structures and energy characteristics of the three ecosystems. As indicated from the results, the energy flow in the three ecosystems of NC, CR, and CB mainly flows between trophic levels I and IV, and the overall transfer efficiencies of the three ecosystems are characterized by CR < NC < CB. The output of primary producers in the three ecosystems are, respectively, 852 t.km(-2).y(-1), 3780 t.km(-2).y(-1), and 1842.3 t.km(-2).y(-1), and the recycling flows into the detritus are 49.37%, 48.46%, and 79.79% respectively. There are two major trophic transfer paths in the three ecosystem food webs, namely the detrital food chain and the grazing food chain. Through the comparison and analysis of the overall characteristics of the system, we found that the indicators reflecting system maturity - including total primary production/total respiration (TPP/TR), connectance index (CI), system omnivory index (SOI), Finn's cycling index (FCI), and Finn's mean path length (FML) - indicate that the maturity of the ecosystem of CB is lower than that of NC, and is much lower than that of CR. The results show that the ecosystems of CR, NC, and CB, respectively, are in basically mature, immature, and unstable "young" states. This trophic model analysis also provides a new research perspective on the studies of the influence of hydropower development on riverine ecology.
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语种	英语
WOS记录号	WOS:000414471200041
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/20620]
专题	成都山地灾害与环境研究所_山区发展研究中心成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xu-Xi,Peng, Li,Su, Chun-Jiang,et al. Impact of Hydropower Dam Development on River Ecosystems: Ecopath Model Application on the Red River in China as an Example[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2017,26(6):2811-2821.
APA	Wang, Xu-Xi,Peng, Li,Su, Chun-Jiang,&Cheng, Gen-Wei.(2017).Impact of Hydropower Dam Development on River Ecosystems: Ecopath Model Application on the Red River in China as an Example.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,26(6),2811-2821.
MLA	Wang, Xu-Xi,et al."Impact of Hydropower Dam Development on River Ecosystems: Ecopath Model Application on the Red River in China as an Example".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 26.6(2017):2811-2821.