There existed close relationship between ground water depth and precipitation (the correlation coefficient 0. 9036).

降水与潜水埋深有密切关系，相关系数达0.9036；

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Spatial interpolation and geostatistical methods are used to study the spatial variability of the meteorologic elements and ground water depth in the area.

在空间变异分析方面：应用空间插值、地质统计学等理论研究了灌区气象条件和地下水埋深的空间变异规律。

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Ever frozen ground prevents water from infiltrating to deep layer, which increases the depth of runoff and intensity of transpiration.

同时多年冻土抑制水分向深层土壤的下渗，增加了径流深度和蒸腾发强度。

youdao

The water was probably once on the surface and then percolated through the ground where it became trapped at a depth of 2.4km.

BBC: Deep Canadian mine yields ancient water