[1]党学亚,卢娜,顾小凡,等.柴达木盆地生态植被的地下水阈值[J].水文地质工程地质,2019,46(3):1.[doi:10.16030/j.cnki.issn.1000-3665.2019.03.01]
　DANG Xueya,LU Na,GU Xiaofan,et al.Groundwater threshold of ecological vegetation in Qaidam Basin[J].Hydrogeology & Engineering Geology,2019,46(3):1.[doi:10.16030/j.cnki.issn.1000-3665.2019.03.01]
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柴达木盆地生态植被的地下水阈值()
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《水文地质工程地质》[ISSN:1000-3665/CN:11-2202/P]

卷:
46卷
期数:
2019年3期
页码:
1
栏目:
调查计划专栏
出版日期:
2019-05-15

文章信息/Info

Title:
Groundwater threshold of ecological vegetation in Qaidam Basin
文章编号:
1000-3665(2019)03-0001-08
作者:
党学亚1; 2; 3; 卢娜1; 2; 3; 顾小凡1; 2; 3; 金晓媚4
1.中国地质调查局西安地质调查中心，陕西 西安710054；2.中国地质调查局干旱-半干旱地区地下水与生态重点实验室，陕西 西安710054；3.陕西省水资源与环境工程技术研究中心，陕西 西安710054；4.中国地质大学（北京）水资源与环境学院，北京100083
Author(s):
DANG Xueya1; 2; 3;  LU Na1; 2; 3;  GU Xiaofan1; 2; 3;  JIN Xiaomei4
1.Xi′an Center of Geological Survey，CGS，Xi’an，Shaanxi710054, China；2. Key Laboratory for Groundwater and Ecology in Arid and Semi-arid Areas，Xi’an，Shaanxi710054, China；3.Shaanxi Province Engineering Research Centre of Water Resources and Environment，Xi’an，Shaanxi710054, China；4.School of Water Resources and Environment, China University of Geosciences (Beijing)，Beijing100083, China
关键词:
柴达木盆地; 生态植被; 地下水阈值; 水位埋深; TDS
Keywords:
Qaidam Basin;  ecological vegetation;  groundwater threshold;  groundwater depth;  TDS
分类号:
P641.1；P641.8
DOI:
文献标志码:
A
摘要:
生态植被的地下水阈值是指植被依赖地下水生长的最大水位埋深和溶解性总固体含量（TDS）。控制地下水开采生态风险的基础是弄清生态植被与地下水的依存关系并给出地下水阈值。文章利用遥感数据集MOD13Q1和水文地质调查获得的实测数据，统计分析了柴达木盆地主要平原区生态植被与潜水的水位埋深、TDS的关系。结果表明：天然植被依赖地下水的阈值是水位埋深为5.3 m、TDS为7.5 g/L；埋深＞5.3 m地带的天然植被基本与地下水无关；埋深＜1.1 m是水生植被、湿生植被与湿生耐盐碱植被适宜生长的水位埋深区间；埋深1.4~3.5 m是耐盐植被及中生植被与旱生植被适合生长的水位埋深区间；TDS≤1.5 g/L适宜植被生长，1.5 g/L＜TDS≤5 g/L较适宜植被生长，5 g/L＜TDS≤7.5 g/L基本不适宜植被生长，TDS＞7.5 g/L不适宜植被生长。
Abstract:
The groundwater threshold of ecological vegetation is defined as the maximum depth to the water table and the maximum total dissolved solids (TDS) of groundwater on which the growth of vegetation depends. The basis for controlling the ecological risk of groundwater exploitation is to clarify the dependency of ecological vegetation and groundwater and determine the groundwater threshold. Based on the measured data obtained by remote sensing dataset MOD13Q1 and hydrogeological survey, the relationship among ecological vegetation, burial depth and TDS of the phreatic water in the main plain area of the Qaidam Basin is statistically analyzed. The results show that ① the threshold of natural vegetation-dependent groundwater is 5.3 m for depth of water table and 7.5 g/L for TDS, and natural vegetation growing in areas where the water table depth is more than 5.3 m is basically independent of groundwater. ② Water table depth ＜1.1 m is suitable for aquatic, hygrophilous vegetation and hygrophilous saline-resistant vegetation. Water table depth ranging from 1.4 m to 3.5 m is suitable for saline-resistant vegetation, middle vegetation and xerophytic vegetation. ③ TDS of ≤1.5 g/L is suitable for vegetation growth, 1.5 g/L7.5 g/L is not suitable for vegetation growth.

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备注/Memo

备注/Memo:
收稿日期： 2018-09-01; 修订日期： 2018-11-17
基金项目： 中国地质调查局地质调查项目“柴达木盆地巴音河-塔塔凌河流域1∶5万水文地质调查”（DD20160291）
第一作者： 党学亚（1967-），男，博士，教授级高工，主要从事水工环地质调查研究。E-mail：474767944@qq.com
更新日期/Last Update: 2019-05-15