水土保持研究2011，Vol.18Issue(1)：210-214,5.
基于地统计学的宝鸡市区地下水位空间变异特征研究
Geostatistics-based Study of Spatial Variability of Groundwater Level in Baoji Urban Area
摘要
Abstract
Using geographic information system software (ArcGIS), extracting a layer of the study area about 100 km2 from the DEM data of Baoji city, selecting the groundwater level data of 24 monitoring wells in the year of 1990,1995,2000 and 2004 as the sample data, this paper made a research on the trend analysis, spatial variation analysis and spatial interpolation of the urban area groundwater level with geostatistics. The results showed that there was a clear ‘U’type trend in the north-south direction for the urban groundwater level, while the trend was not obvious in the east-west direction each year. Groundwater level was of moderate spatial correlation, more variation ingredients of the following scales in the 800 m short-range, poor spatial continuity each year and of short distance spatial autocorrelation. Anisotropy decreased from 0. 713 in 1990 to 0. 171 in 2004, which indicated a gradual increase of urban groundwater level spatial anisotropy. The cross validation of the spherical model turned to be good and the spatial interpolation showed that groundwater level and spatial distribution changed significantly between years in different parts of the study area as a result of the spatial-temporal exploitation intensity关键词
宝鸡市区/地统计学/地下水位/时空变异/ArcGIS分类
天文与地球科学引用本文复制引用
许义和,魏晓妹,蔡明科,胡国杰,徐万林..基于地统计学的宝鸡市区地下水位空间变异特征研究[J].水土保持研究,2011,18(1):210-214,5.基金项目
国家自然科学基金项目(50879071) （50879071）
