干旱地区农业研究Issue(3)：220-224,255,6.
开都河流域下游绿洲土壤盐分特征分析
Analysis of soil salinity characteristics of oasis in the lower reaches of the Kaidu River
摘要
Abstract
Taking the oasis in the lower reaches of the Kaidu River as the case study area ,through the field investi-gation ,sampling and laboratory experimental analysis ,adopted the application of statistical method and principal compo-nent analysis method to research the characteristics of regional soil salinity .The results showed that :(1 ) In 0~10 cm soil layer ,the soil salinity content was 0 .7348 g·kg-1 ,in 10~30 cm ,the soil salinity was 0 .2070 g·kg-1 ,in 30~50 cm ,the soil salinity was 0 .1852 g·kg-1 .The soil salinity was decreased with the increasing soil depth .The variation coefficient of the soil salinity was 319% ,211% and 193% ,respectively .It was shown strong variability . (2 ) In the soil layer of 0~10 cm ,10~30 cm and 30~50 cm ,with the increasing soil depth ,the average value of Cl - ,SO42- , Mg2+ and K+ +Na+ ions was gradually reduced ,on the whole salt distribution possessed a strong surface accumulation . (3) The characteristic factors of soil salinization were Cl - and SO42- .(4) The average value of total soil salt for unused land ,farmland and forestland was 0 .4420 g·kg-1 ,0 .0755 g·kg-1 and 0 .0414 g·kg-1 ,respectively .The unused land was higher than other land use types ,the farmland was the second and forestland was the minimum .关键词
土壤盐分/变异系数/土壤盐渍化/主成分分析/开都河流域下游绿洲Key words
soil salinity/variation coefficient/soil salinization/principal component analysis/oasis of the lower reaches of Kaidu River分类
生物科学引用本文复制引用
古丽克孜·吐拉克,李新国,阿斯耶姆·图尔迪,赖宁..开都河流域下游绿洲土壤盐分特征分析[J].干旱地区农业研究,2014,(3):220-224,255,6.基金项目
新疆维吾尔自治区自然科学基金项目 （）
