南水北调一期工程开通以来北京地下水开采效果分析

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yuan-yuan Gao, Qing-yu Sun, Ai-xin Wen, Yan-pei Cheng
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引用次数: 0

摘要

采用调查与评价相结合的方法,对南水北调一期工程开通以来北京市地下水压力抽取的效果进行了评价。首先,对北京市近年来的用水结构和引水利用情况进行了分析。其次,对工程开通后北京市地下水压力抽取量进行了检测,发现从2014年的19.6亿m3减少到2020年的13.5亿m3。供水比重由2014年的52.3%下降到2020年的33.3%,供水结构不断优化。预计到2020年底,北京市地下水压力开采量将达到4.46亿立方米,地下水超采现象大幅减少。地下水资源得到有效补充,战略储备能力增强。此外,本研究还评价了地下水位的变化作为压力抽取效果的指标。北京地下水位下降趋势得到有效缓解,近5年地下水位持续回升。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effectiveness of groundwater extraction in Beijing since the ingauration of the first phase of the South-to-North Water Diversion Project, China
This study assess the effectiveness of groundwater pressure extraction in Beijing since the opening of the first phase of the South-to-North Water Diversion Project, using survey and evaluation methods. Firstly, an analysis of water consumption structure and the usage of diverted river water in Beijing in recent years was conducted. Secondly, the volume of groundwater pressure extraction in Beijing after the project's inauguration was examined, revealing a decrease from 1.96 billion m3 in 2014 to 1.35 billion m3 in 2020. The proportion of water supply reduced from 52.3% in 2014 to 33.3% in 2020, leading to an optimized water supply structure. By the end of 2020, groundwater pressure extraction in Beijing is estimated at 446 million m3, with a substantial reduction in over-exploitation of groundwater. Groundwater resources have been effectively replenished, and the strategic reserve capacity has been enhanced. Furthermore, this study evaluates the change in groundwater levels as an indicator of the effectiveness of pressure extraction. The declining trend of groundwater levels in Beijing has been effectively mitigated, and there has been a consistent rebound in groundwater levels over the past five years.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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