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根据1985~2007年的华北平原典型区—邢台地区的地下水埋深数据以及近37年的气象数据,运用线性回归法、相关性分析、5年滑动平均法等方法,分析该地地下水位变化趋势,比较不同地质单元地下水对气候变化的响应,结果表明:邢台平原区浅层地下水以0.89 m/a的速率下降,深层地下水以南宫为例下降速率为0.78 m/a,产生地面沉降、漏斗扩大、地裂缝产生负效应,其原因在于研究区的气候趋于暖干化和人类的生产生活活动导致地下水长期处于采补失衡状态.各地质水文单元地下水与气候因素相关性存在明显差异.研究区暖干化趋势明显,影响地下水位的变化,而人为因素是本区地下水下降的主导因素.
Based on the groundwater depth data of Xingtai area from 1985 to 2007 and the past 37 years of meteorological data, the linear regression method, correlation analysis and 5-year moving average method were used to analyze the variation trend of groundwater level The results show that the shallow groundwater in Xingtai Plain descends at a rate of 0.89 m / a, and the descending rate of deep groundwater in the Nangong Palace is 0.78 m / a, resulting in land subsidence and enlarging of the funnel , The negative effect of ground fissures is due to the fact that the climate in the study area tends to be warm and dry and the production and living activities of human beings cause the groundwater to be imbalanced in the long term with the mining and drainage.The correlation between the groundwater and climatic factors in each geological hydrological unit is obviously different.The study area The trend of warm-drying is obvious, which affects the change of groundwater level. However, the human factor is the dominant factor of groundwater descent in this area.