DYNAMIC CHARACTERISTICS AND DIFFERENCE ANALYSIS OF THE GROUNDWATER IN CHANGCHUN NEW DISTRICT
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摘要:
为了进一步查明长春新区水文地质条件，掌握地下水动态规律，选取饮马河流域长春新区开展研究.利用2016~2018年地下水观测数据，通过地下水动态分析、衬度系数方差分析、相关性分析，认为长春新区地下水动态特征主要为入渗-蒸发型及入渗-开采型，地下水主要接受降水补给，水位埋深受降雨和人为开采的双重影响；地下水水位埋深具有明显的空间分异特征；地下水埋深与降水量呈明显的负相关，地下水埋深与降水量的相关具有差异性.
Abstract:To further identify the hydrogeological conditions and find the dynamic rule of groundwater of the Changchun New District in Yinma River Basin, the dynamic analysis, contrast coefficient variance analysis and correlation analysis are conducted on the basis of observation data of groundwater during 2016-2018. It is considered that the dynamic characteristics of groundwater are mainly infiltration-evaporation type and infiltration-exploitation type. Groundwater is mainly replenished by precipitation. The water level is affected by both rainfall and mining, with obvious spatial variation. There are notable yet different negative correlations between the groundwater depth and precipitation.
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表 1 Spearman等级相关系数取值标准
Table 1. Criteria of Spearman rank correlation coefficient values
|R| [0, 0.3) [0.3, 0.5) [0.5, 0.8) [0.8, 1) 相关性 极弱相关 低度相关 显著相关 高度相关 
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表 2 长春新区逐年降水量统计表
Table 2. Statistics of annual precipitation in Changchun New District
年度 2016 2017 2018 降雨量/mm 775.1 504.3 507 总水量/108 t 159.4 103.7 105 较上年增减/% 0.3 -34.9 0.5 水量丰枯 丰水年份 偏枯水年份 平水年
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表 3 空间序列衬度系数方差表
Table 3. Contrast coefficient variances of spatial sequence
监测孔号 CG01 CG02 CG05 CG07 CG04 CG03 CG06 方差（σ2） 0.067 0.083 0.133 0.006 0.006 0.002 0.002
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表 4 降水量与地下水水位变动相关性统计表
Table 4. Statistics of correlation between precipitation and groundwater level fluctuation
降水量 CG01 CG02 CG05 CG07 CG04 CG03 CG06 降水量 1 CG01 -0.75 1 CG02 -0.96 0.9 1 CG05 -0.94 0.48 0.81 1 CG07 -0.99 0.67 0.92 0.97 1 CG04 -0.14 0.76 0.41 -0.2 0.03 1 CG03 -0.65 0.99 0.84 0.36 0.56 0.84 1 CG06 -0.998* 0.71 0.94 0.96 0.999* 0.08 0.6 1 *表示相关性强.
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