水土保持研究2011，Vol.18Issue(3)：64-67,72,封2,6.
开都河下游灌区土壤盐渍化动态变化研究
Study on the Dynamic Changes of Soil Salinization in the Downstream of Kaidu River Irrigation Areas, Xinjiang
摘要
Abstract
Soil Salinization is one of the factors impacting the agriculture development in the oasis, so it is of great importance for evaluating and treating the salinization in the oasis of the arid regions to research the dynamics of soil salinization.Taking the downstream of Kaidu River irrigation areas located in the Tarim Basin,Xinjiang as an example, based on GIS platform, taking the remote sensing images in 1973 and in 2008 as the main information, by interpreting the images with combination of the field survey, the databases are built,and the status quo, degree and distribution characteristics of the soil salinization were analyzed.Some results were obtained as follows: the saline land had decreased in area and degree during the period from 1973 to 2008.The area of saline land had decreased from 1 587.00 km2 in 1973 to 1 513.40 km2 in 2008, and the decreased area was 73.60 km2 , decreased by 2.04 km2 per year on average.While the mediate-degree and heavy-degree of saline land area had decreased by 154.5 km2 , the light-degree of saline land area had increased by 80.9 km2.The main lands of soil salinification were near the low-lying regions, the lakeside and the strand of rivers northern Bosten Lake, and soil salinity was greater in natural areas than in forest areas and farmland areas.The degree was weakened, but the saline land had constituted a serious threat to the ecosystem environment and oasis economic development, thus, more concern should be given to it.关键词
土壤盐渍化/动态变化/遥感/绿洲/开都河下游灌区Key words
soil salinization/ dynamic changes/ remote sensing/ oasis/ irrigation area of the downstream of Kaidu River分类
农业科技引用本文复制引用
李新国,樊自立,李会志,任云霞..开都河下游灌区土壤盐渍化动态变化研究[J].水土保持研究,2011,18(3):64-67,72,封2,6.基金项目
国家自然科学基金项目(41061025) （41061025）
自治区高校科研计划青年教师科研基金项目(XJEDU2009S69) （XJEDU2009S69）
