Arid
DOI10.1002/hyp.8207
Rate and historical change of direct recharge from precipitation constrained by unsaturated zone profiles of chloride and oxygen-18 in dry river bed of North China Plain
Yuan, Ruiqiang1,2; Song, Xianfang1; Han, Dongmei1; Zhang, Yinghua1; Zhang, Liang1; Zhang, Bing1; Long, Xiting1; Yu, Yilei1
通讯作者Song, Xianfang
来源期刊HYDROLOGICAL PROCESSES
ISSN0885-6087
EISSN1099-1085
出版年2012
卷号26期号:9页码:1291-1301
英文摘要

Quantifying of direct recharge derived from precipitation is crucial for assessing sustainability of well-irrigated agriculture. In the North China Plain, the land use is dominated by groundwater-irrigated farmland where the direct recharge derived from precipitation and irrigation. To characterize the mean rate and historical variance of direct recharge derived from precipitation, unsaturated zone profiles of chloride and d18O in the dry river bed of the Beiyishui River were employed. The results show that archival time scale of the profile covers the duration from 1980 to 2002 (corresponding to depths from 5 to 2 m) which is indicated by matching the d18O peaks in the isotope profile with the aridity indexes gained by instrumental records of annual precipitation and annual potential evaporation. Using the chloride mass balance method, the mean rate of the direct recharge corresponding to the archival time scale is estimated to be 3.8 +/- 0.8 mm year-1, which accounts for about 0.7% of the long-term average annual precipitation. Further, the direct recharge rates vary from 2.1 to 6.8 mm year-1 since 1980. Despite the subhumid climate, the estimate of recharge rates is in line with other findings in semiarid regions. The low rate of direct recharge is considered as a result of the relative dry climate in recent decades. In dry river bed, unsaturated zone profiles of chloride and d18O combined with instrumental records could offer valuable information about the direct recharge derived from precipitation during droughts. Copyright (c) 2011 John Wiley & Sons, Ltd.


英文关键词direct recharge chloride mass balance stable isotope profile unsaturated zone North China Plain
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000302795100003
WOS关键词ESTIMATING GROUNDWATER RECHARGE ; IRRIGATED CROPLAND ; WATER-BALANCE ; WINTER-WHEAT ; MINQIN BASIN ; GOBI DESERT ; TRITIUM ; DEUTERIUM ; ISOTOPES ; SOILS
WOS类目Water Resources
WOS研究方向Water Resources
来源机构中国科学院地理科学与资源研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/172752
作者单位1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China;
2.Shanxi Univ, Sch Environm Sci & Resources, Taiyuan 030006, Peoples R China
推荐引用方式
GB/T 7714
Yuan, Ruiqiang,Song, Xianfang,Han, Dongmei,et al. Rate and historical change of direct recharge from precipitation constrained by unsaturated zone profiles of chloride and oxygen-18 in dry river bed of North China Plain[J]. 中国科学院地理科学与资源研究所,2012,26(9):1291-1301.
APA Yuan, Ruiqiang.,Song, Xianfang.,Han, Dongmei.,Zhang, Yinghua.,Zhang, Liang.,...&Yu, Yilei.(2012).Rate and historical change of direct recharge from precipitation constrained by unsaturated zone profiles of chloride and oxygen-18 in dry river bed of North China Plain.HYDROLOGICAL PROCESSES,26(9),1291-1301.
MLA Yuan, Ruiqiang,et al."Rate and historical change of direct recharge from precipitation constrained by unsaturated zone profiles of chloride and oxygen-18 in dry river bed of North China Plain".HYDROLOGICAL PROCESSES 26.9(2012):1291-1301.
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