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当前位置: 首页 > 文章 > 基于GIS和地统计学的干旱绿洲地区土壤水分时空变化 贵州农业科学 2017 (5) 128-131
Position: Home > Articles > Temporal and Spatial Variation of Soil Moisture in Arid Oasis Area Based on GIS and Geostatistics Guizhou Agricultural Sciences 2017 (5) 128-131

基于GIS和地统计学的干旱绿洲地区土壤水分时空变化

作  者：
刘强;杨东
单  位：
天水师范学院资源与环境工程学院;西北师范大学地理与环境科学学院
关键词：
地统计学;空间变异;变异函数;土壤水分;干旱绿洲区
摘  要：
探明干旱绿洲地区土壤水分变化特征,为其生态保护和植被恢复提供参考,以甘肃省张掖市甘州区80个0~20cm土层土样为研究对象,利用GIS和地统计学相结合方法研究其土壤水分的时空变化特征。结果表明:9月在甘州地区0~20cm土层土壤的水分含量以10cm土层最高,为18.6%;20cm土层其次,为16.5%;表土层(0cm土层)最小,为11.7%;该月土壤的水分含量随土层深度增加呈先升高后降低趋势,且以10cm土层土壤的收墒蓄水作用较明显。4月以20cm土层土壤的水分含量最高,为16.74%;10cm土层其次,为13.44%;表土层最小,为12.26%;该月土壤水分含量随土层深度增加呈逐渐升高趋势。土层土壤水分含量的空间分布,在4月和9月均表现为由南向北、由东向西呈逐渐降低趋势。
译  名：
Temporal and Spatial Variation of Soil Moisture in Arid Oasis Area Based on GIS and Geostatistics
作  者：
LIU Qiang;YANG Dong;College of Resources and Environmental Engineering,Tianshui Normal University;College of Geography and Environmental Sciences,Northwest Normal University;
关键词：
geostatistics;;spatial variation;;variation function;;soil moisture;;arid oasis area
摘  要：
The temporal and spatial variation characteristics of soil moisture of 80 soil samples collected from 0~20cm soil layer in Ganzhou District,Zhangye City,Gansu Province was analyzed by GIS and geostatistics methods to explore variation characteristics of soil moisture in the arid oasis area and provide a reference for ecological protection and vegetation recovery.Results:The moisture content of soil samples collected from 10 cm soil depth,20 cm soil depth and 0cm soil depth in Ganzhou District in September is18.6%,16.5% and 11.7%respectively.The soil moisture content shows a first rising and then declining trend with increase of soil depth in September and the water retention and storage capacity of soil samples collected from 10 cm soil depth is higher obviously.The moisture content of soil samples collected from10 cm soil depth,20 cm soil depth and 0cm soil depth in April is 16.74%,13.44% and 12.26%separately.The soil moisture content presents a gradual rising trend with increase of soil depth.The spatial distribution of moisture content of soil samples with 0~20cm soil depth shows a gradual declining trend from south to north and from east to west in April and September.

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