干旱地区农业研究Issue(6)：171-175,214,6.
于田绿洲不同季节表层土壤盐渍化程度的空间变异特征
Analysis of seasonal variation of topsoil salinization in Yutian Oasis
摘要
Abstract
Based on the open field measured data ,with the aid of the conventional statistics and geo-statistics anal-ysis method ,this paper takes Yutian Oasis as study area and analyses the distribution of the topsoil salinization degrees in spring and summer of 2012 in this area .The results reveal that (1 ) Through statistical parameter analysis ,Yutian Oasis belongs to strongly salinized area ,where the topsoil salt content averages 18 .2 g·kg-1 ,the coefficient of variation is be-tween 109 .5% ~115 .6% ,belonging to the strong spatial variability . (2 ) By the judge of semivariogram analysis ,the surface spatial distribution of soil salinity shows a strong correlation .(3) Through Kriging method analysis ,the conclu-sion shows that in the oasis ,the soil surface salinity from spring to summer has the same tendency ;Inside the oasis ,as the underground water is deeply buried ,the salt content is lower ,and the soil alkaline is small;While in the surrounding area of the oasis ,as the depth of underground water is shallow ,the salt content is higher ,and the soil alkaline is simul-taneously higher .关键词
土壤含盐量/空间变异/地下水埋深/半方差函数/地统计学/Kriging插值/于田绿洲Key words
topsoil salinity/spatial variability/depth of under ground water/semi-variance/geostatistical analysis/Kriging interpolation/Yutian Oasis分类
农业科技引用本文复制引用
宋玉,塔西甫拉提·特依拜,吴雪梅,姜红涛,陶兰花,周梅,买买提·沙吾提..于田绿洲不同季节表层土壤盐渍化程度的空间变异特征[J].干旱地区农业研究,2014,(6):171-175,214,6.基金项目
国家自然科学基金（U1138303）；教育部长江学者和创新团队 （）
