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	Ecohydrological effects of stream-aquifer water interaction: a case study of the heihe river basin, northwestern china
	Zeng, Yujin1,2; Xie, Zhenghui1; Yu, Yan3; Liu, Shuang1,2; Wang, Linying1,2; Jia, Binghao1; Qin, Peihua1; Chen, Yaning4
刊名	Hydrology and earth system sciences
	2016
卷号	20期号:6页码:2333-2352
ISSN号	1027-5606
DOI	10.5194/hess-20-2333-2016
通讯作者	Xie, zhenghui(zxie@lasg.iap.ac.cn)
英文摘要	A scheme describing the process of stream-aquifer interaction was combined with the land model clm4.5 to investigate the effects of stream water conveyance over riparian banks on ecological and hydrological processes. two groups of simulations for five typical river cross sections in the middle reaches of the arid-zone heihe river basin were conducted. the comparisons between the simulated results and the measurements from water wells, the fluxnet station, and remote sensing data showed good performance of the coupled model. the simulated riparian groundwater table at a propagation distance of less than 1 km followed the intra-annual fluctuation of the river water level, and the correlation was excellent (r-2 = 0.9) between the river water level and the groundwater table at the distance 60 m from the river. the correlation rapidly decreased as distance increased. in response to the variability of the water table, soil moisture at deep layers also followed the variation of river water level all year, while soil moisture at the surface layer was more sensitive to the river water level in the drought season than in the wet season. with increased soil moisture, the average gross primary productivity and respiration of riparian vegetation within 300 m from the river in a typical section of the river increased by approximately 0.03 and 0.02 mg ca m(-2) s(-1), respectively, in the growing season. consequently, the net ecosystem exchange increased by approximately 0.01 mg c m(-2) s(-1), and the evapotranspiration increased by approximately 3 mm day(-1). furthermore, the length of the growing season of riparian vegetation also increased by 2-3 months due to the sustaining water recharge from the river. overall, the stream-aquifer water interaction plays an essential role in the controlling of riparian hydrological and ecological processes.
WOS关键词	ANTHROPOGENIC GROUNDWATER EXPLOITATION ; EARTH SYSTEM MODEL ; NORTH-WEST CHINA ; LOWER REACHES ; CARBON-CYCLE ; TARIM RIVER ; SURFACE ; CLIMATE ; CLM4 ; CONVEYANCE
WOS研究方向	Geology ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Water Resources
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000379419500013
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374566
专题	中国科学院大学
通讯作者	Xie, Zhenghui
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.Zhejiang Inst Meteorol Sci, Hangzhou 310008, Zhejiang, Peoples R China 4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Oasis Ecol & Desert Environm, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Yujin,Xie, Zhenghui,Yu, Yan,et al. Ecohydrological effects of stream-aquifer water interaction: a case study of the heihe river basin, northwestern china[J]. Hydrology and earth system sciences,2016,20(6):2333-2352.
APA	Zeng, Yujin.,Xie, Zhenghui.,Yu, Yan.,Liu, Shuang.,Wang, Linying.,...&Chen, Yaning.(2016).Ecohydrological effects of stream-aquifer water interaction: a case study of the heihe river basin, northwestern china.Hydrology and earth system sciences,20(6),2333-2352.
MLA	Zeng, Yujin,et al."Ecohydrological effects of stream-aquifer water interaction: a case study of the heihe river basin, northwestern china".Hydrology and earth system sciences 20.6(2016):2333-2352.

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