水土保持研究2011，Vol.18Issue(6)：157-161,166,6.
基于3S的地下水位埋深与土地盐渍化时空动态变化关系研究——以山东省德州市齐河县为例
Relationship of the Spatial-temporal Dynamic Change between Groundwater Level Depth and Land Salinization Based on 3S——A Case Study of Qihe County in Dezhou City,Shandong Province
摘要
Abstract
The objective of this study was to characterize the causes,spatial distribution and trend of land salinization in Dezhou of Shandong Province,and to provide some suggestions on optimizing and allocating water resources and improving salinized land and land use status of farmland.The rule of the spatial-temporal change in this area was studied by using spatial analysis module of ArcGIS and analyzing groundwater level depth data from 2000 to 2009 and during seedtime around in 2009.Utilizing ERDAS to process TM remote sensing image of October 2002,October 2006,October 2009 and April,2003,information on land use as salinized land was extracted.the source,target,change rate and causes of the salinized land in the targeted area were examined by generating transfer matrix of land use during 2002-2006,2006-2009,and October 2002-April 2003 under ArcGIS.Groundwater level depth and spatial-temporal distribution of salinized land in this area were analyzed to learn the variation tendency and leading factors of salinization by using neighborhood statistics and classification area statistics of ArcGIS.Results show that the annual and seasonal differences are significant in terms of the spatial-temporal distribution of salinized land in the area.The county-wide underground water level is shallow and about 2 m in most of the areas,and up to annual maximum depth of 5 m in few areas.Salinized land shares much distribution in relatively shallow buried areas or areas that suffer stronger fluctuating change in buried depth.Buried depth is the main factor for the salinized land change in the area.关键词
盐渍地/地下水位/转移矩阵/时空动态Key words
salinized land/groundwater level depth/transfer matrix/spatial-temporal dynamic分类
天文与地球科学引用本文复制引用
王文勇,高佩玲,郎新珠,陈飞,刘现伟..基于3S的地下水位埋深与土地盐渍化时空动态变化关系研究——以山东省德州市齐河县为例[J].水土保持研究,2011,18(6):157-161,166,6.基金项目
国家自然科学基金 （）
黄土高原土壤侵蚀与旱地农业国家重点实验室基金 （）
山东理工大学青年教师发展支持计划 （）
山东省自然科学基金 （）
