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西北干旱区地下水生态功能评价指标体系构建与应用[1]
投稿时间:2020-06-18  修订日期:2020-11-23  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2021068
摘要点击次数: 105
全文下载次数: 141
作者单位地址
王金哲 中国地质科学院水文地质环境地质研究所 河北省石家庄市中华北大街268号
张光辉 中国地质科学院水文地质环境地质研究所 
王茜 中国地质科学院水文地质环境地质研究所 
崔浩浩 中国地质科学院水文地质环境地质研究所 
董海彪 中国地质科学院水文地质环境地质研究所 
基金项目:国家重点研发计划课题(2017YFC0406106),国家专项基本科研业务费重大创新研究项目(JYYWF20180403)
中文摘要:西北干旱区降水稀少、蒸发强烈,水资源紧缺,自然湖泊湿地、天然植被绿洲和土壤盐渍化程度对地下水生态水位具有强烈依赖性,由此,西北干旱区地下水生态功能评价指标体系构建成为重要课题。本文基于对干旱区不同类型生态状况与地下水水位埋深之间关系的机制研究,构建了以浅层地下水埋藏状况为核心要素的“西北干旱区地下水生态功能评价指标体系”,它由地下水对自然湿地景观维持性、天然植被绿洲维持性、农田土地质量维持性及其隶属的6项要素指标构成;在石羊河流域中、下游平原区应用结果表明,该套指标体系适用于西北干旱半干旱区地下水功能评价,同时还表征石羊河流域中、下游平原区地下水生态功能脆弱,生态功能较弱和弱分布范围占示范应用区总面积的87.86%,地下水生态功能强、较强分布范围仅占5.07%。由此可见,进一步提高西北干旱区地下水生态功能保护能力刻不容缓。
中文关键词:干旱区  地下水  生态功能  指标体系  自然湿地  荒漠化
 
WANG Jinzhe1,2),ZHANG Guanghui1),WANG Qian1),CUI Haohao1),DONG Haibiao1)
Author NameAffiliationAddress
wangjinzhe Institute of Hydrogeology and Environmental Geology, CAGS, Shijiazhuang 050061,China 河北省石家庄市中华北大街268号
zhangguanghui Institute of Hydrogeology and Environmental Geology,Shijiazhuang,Hebei 
wangqian Institute of Hydrogeology and Environmental Geology,Shijiazhuang,Hebei 
cuihaohao Institute of Hydrogeology and Environmental Geology,Shijiazhuang,Hebei 
donghaibiao Institute of Hydrogeology and Environmental Geology,Shijiazhuang,Hebei 
Abstract:The natural conditions in the arid area of northwest China are very bad, precipitation is scarce, evaporation is intense, and water resources are scarce. In the meantime, natural lakes and wetlands, natural vegetation oases and soil salinization are strongly dependent on the ecological water level of groundwater. So that, it is an important task to construct the evaluation index system of groundwater ecological function in northwest arid area. Based on the study of the relationship between different types of ecological conditions and groundwater table depth in arid area, the evaluation index system of groundwater ecological function in arid area of northwest is constructed, which takes the shallow groundwater as the core factor. It is composed of 3 attribute indexes and its subordinate, the 3 attribute indexes include the maintenance of natural wetland landscape by groundwater, the maintenance of natural vegetation oasis, the maintenance of farmland land quality and. The application results in the middle and lower reaches of the Shiyang River Basin show that the index system is suitable for the evaluation of groundwater function in the arid and semi-arid areas of northwest China, and it also indicates that the ecological function of groundwater in the middle and lower reaches of the Shiyang River Basin is fragile, the weak and weak ecological function accounts for 87.86% of the total area of the demonstration application area, while the strong and strong ecological function of groundwater accounts for only 5.07%. Therefore, it is urgent to improve the ability of groundwater ecological function protection in arid area of northwest China.
keywords:the arid area  groundwater  ecological function  index system  natural wetland  desertification
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