摘要
根据1985-2007年的邢台地区地下水埋深数据、近10年地下水环境质量数据以及近37年的气象数据,运用arcGIS9.2,结合线性回归法、相关性分析、5年滑动平均法等,在分析地下水位动态变化的基础上,进一步分析此种变化的致灾效应。结果表明:邢台平原区浅层地下水以0.89m/a的速率下降,年内与降雨变化同步,深层地下水下降速率为0.78m/a,水位变化速率存在空间差异。研究区暖干化趋势明显,影响地下水位的变化,加之人类的生产生活活动导致地下水长期处于采补失衡状态,从而使该地产生地面沉降、地裂缝产生以及水中盐根离子浓度上升、硬度变化等负效应,严重影响了该区水资源的长期利用及经济的可持续发展。
According to the data of groundwater depth,groundwater environmental quality and meteorology during 1972-2008 in Xingtai,we studied the groundwater dynamic variation and its hazard effect further by the regression analysis,the correlation analysis,the five-year moving average,and arcGIS9.2.It was found that shallow groundwater declined in the rate of 0.89m/a,their characteristics were similar to the precipitation during the years and deep groundwater descended in the rate of 1.53m/a.There were some space differences about the variation.The area was becoming warmer and dryer and also influenced by human activities so obviously that the earth became subsiding,the cracks were created,the water hardness was increasing and so on.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2011年第4期100-105,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金项目"秦岭南北全球变化适应度评价及可持续发展模式选择"(40871052)资助
关键词
地下水位
动态变化
负效应
邢台
groundwater levels
dynamic variation
adverse effect
Xingtai
