Effects of ecological construction on the transformation of different water types on Loess Plateau, China

doi:10.1016/j.ecoleng.2019.105642

	Effects of ecological construction on the transformation of different water types on Loess Plateau, China
	Zhao, Binhua 1; Li, Zhanbin 1,2; Li, Peng 1,3; Cheng, Yuting 1; Gao, Bei 4
刊名	ECOLOGICAL ENGINEERING
	2020-02-01
卷号	144 页码:10
关键词	Stable isotopes Water transmission time Water supply ratio Ecological construction
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2019.105642
通讯作者	Li, Peng(ttzlp@xaut.edu.cn)
英文摘要	Water is the most essential resource for the ecological and biological survival of organisms as well as being an important strategic socio-economic factor. Stable isotopes of delta D and delta O-18 in water are important indicators of hydrological and ecological process. In this study, temporal and spatial variations in delta D and delta O-18 and transformations between three water bodies (precipitation, stream water, and groundwater) under ecological construction were studied in two contrasting watersheds of the Wuding River, China. In order to understanding the spatial and temporal variation of stable isotopes and water transmission times (WTT) under ecological construction, a total of 1028 water samples were collected from the 30 sites, and 79 precipitation samples were collected at the weather station. The results show that variation range of three water bodies occurred in the order precipitation > stream water > groundwater, the local meteoric water line was above the level of the last two, and the isotopic composition of stream water and groundwater in controlling watershed is more enriched than that in natural watershed. WTT from precipitation to stream water in Jiuyuangou were 1.53 times those of Peijiamao. Similarly, WIT from precipitation to groundwater was about 7.6 times than that form precipitation to stream water. Supply ratios exhibited obvious seasonal variation. Precipitation and groundwater recharged stream water mostly in the dry season, while precipitation and stream water recharged groundwater during the wet season. Overall, this study shows that ecological construction measures extend WTTs and enhance water evaporation and fractionation. The results of this research are significant as they enhance our understanding of water transformation on the Loess Plateau under ecological construction.
资助项目	National Key Research and Development Program of China[2017YFC0504704] ; National Natural Science Foundations of China[51779204] ; Shaanxi Province Innovation Talent Promotion Plan Project Technology Innovation Team[2018TD-037]
WOS关键词	STABLE-ISOTOPE VARIATIONS ; RESIDENCE TIMES ; GROUNDWATER-RECHARGE ; RIVER-BASIN ; DELTA-D ; PRECIPITATION ; RUNOFF ; CONNECTIVITY ; MOUNTAINS ; HYDROLOGY
WOS研究方向	Environmental Sciences & Ecology ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000509459800010
资助机构	National Key Research and Development Program of China ; National Natural Science Foundations of China ; Shaanxi Province Innovation Talent Promotion Plan Project Technology Innovation Team
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/131482]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Peng
作者单位	1.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg, Xian 710048, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dry Land Farming Loess, Yangling 712100, Shaanxi, Peoples R China 3.Natl Forestry Adm Ecol Hydrol & Disaster Prevent, Key Lab, Xian 710048, Shaanxi, Peoples R China 4.Xian Water Conservancy Survey Design Inst, Xian 710054, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Binhua,Li, Zhanbin,Li, Peng,et al. Effects of ecological construction on the transformation of different water types on Loess Plateau, China[J]. ECOLOGICAL ENGINEERING,2020,144:10.
APA	Zhao, Binhua,Li, Zhanbin,Li, Peng,Cheng, Yuting,&Gao, Bei.(2020).Effects of ecological construction on the transformation of different water types on Loess Plateau, China.ECOLOGICAL ENGINEERING,144,10.
MLA	Zhao, Binhua,et al."Effects of ecological construction on the transformation of different water types on Loess Plateau, China".ECOLOGICAL ENGINEERING 144(2020):10.