基于改进积分型Richards方程的新疆喀什地区地下水开采影响评估研究
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摘要
采用改进积分型Richards方程对新疆喀什地区不同地下水开采影响进行评估。评估结果表明:改进积分型Richards方程相比于传统算法,在计算精度上有明显改善。不同方案下地下水变幅比例不同,地下水浅层压采率在150万m~3/a～450万m~3/a,深层压采率在280万m~3/a～520万m~3/a,其水位变幅较为不明显,在2.5～4.8 m之间变化,对地下水影响程度较低,可满足区域地下水开采的可持续利用。
use the improved integral Richards equation to evaluate the effects of different groundwater exploitation in the Kashi region of Xinjiang. The evaluation results show that the improved integral Richards equation has a significant improvement in computational accuracy compared to the traditional algorithm. The ratio of groundwater variable amplitude is different under different schemes. The shallow ground mining rate is 1.5～4.5 million m~3/a, and the deep lamination recovery rate is 2.8～4.5 million m~3/a. The water level is more obvious. The change from 2.5 m to 4.8 m has a high degree of influence on groundwater. The research results have important reference value for the formulation of regional groundwater exploitation plans.
use the improved integral Richards equation to evaluate the effects of different groundwater exploitation in the Kashi region of Xinjiang. The evaluation results show that the improved integral Richards equation has a significant improvement in computational accuracy compared to the traditional algorithm. The ratio of groundwater variable amplitude is different under different schemes. The shallow ground mining rate is 1.5～4.5 million m~3/a, and the deep lamination recovery rate is 2.8～4.5 million m~3/a. The water level is more obvious. The change from 2.5 m to 4.8 m has a high degree of influence on groundwater. The research results have important reference value for the formulation of regional groundwater exploitation plans.
引文
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[2]刘大伟,张松.地下水开采对生态环境影响及对策研究[J].地下水.2018.40(05):53-55.
[3]罗安昆,李瑾,杨建,等.煤炭开采对干旱半干旱地区地下水资源的影响[J].煤矿安全.2018.49(12):216-220.
[4]陶建华.宿州市地下水漏斗现状及成因分析[J].上海国土资源.2018.39(04):126-129.
[5]李国礼.太和县地下水资源开发利用存在问题及对策探析[J].地下水.2018.40(05):56-58.
[6]王巍萍,冯丽,杜晨.烟台市平原区地下水资源开发利用现状分析[J].地下水.2018.40(04):89-90.
[7]刘声凯,肖立权,欧阳波罗,等.株洲市河西应急地下水源地研究[J].地下水.2018.40(04):21-24.
[8]秦隆宇.基于葫芦岛市地下水水位变化主导因素的定量识别研究[J].水利技术监督.2018(06):152-156.
[9]黄松岭.新疆水利工程水文与水资源工程现状分析[J].陕西水利.2018(06):31-32.