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渭库绿洲土壤盐渍化遥感监测研究

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土壤盐渍化问题始终是干旱区可持续发展和改善环境质量的战略问题.土壤盐渍化作为土壤退化形式之一,已经成为全球性的研究热点.而土壤盐渍化信息提取也一直是研究的热点,也是遥感专题信息提取的难点之一;采用决策树分类方法,对研究区的遥感影像进行了分类,实现了基于知识的土壤盐渍地专题信息的自动提取,从而分析了渭库绿洲的盐渍地时空变化特征;结果表明2001-2006年问研究区盐渍化土壤总面积略有增加,其中轻度和中度盐渍地的变化程度剧烈,且各类盐渍地均有向绿洲内部西北方向偏移发展的趋势.图4,表5,参9.
Remote Sensing Monitoring of Soil Salinization in the Delta Oasis of Weigan and Kuqa Rivers
Soil salinization matter is always stratagem problem of sustainable development and improving environment quality in arid area. Soil salinization qua one of soil degenerate form, which has became a global research hot point. Extraction of saline soil information is not only the hot point, but also the difficulty of the special information extraction from remotely sensed images. The research adopt Decision - making Tree classify method, accomplish the automatic extraction of saline soil information based on knowledge; accordingly analysis space time and quantity change character of saline soil. The results indicate that total area of saline soil increase a little in research region from 2002 to 2006, thereinto movement extent of low - grade and mid - grade saline soil are tempestuousness, but all kind of saline soil have change trend of moving to northwest of oasis inside.

Oasis of Weigan and Kuqa Riverssaline soilTime and Spatial variability

王家强、哈学萍

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塔里木大学植物科学学院,新疆,阿拉尔,843300

新疆大学资源与环境科学学院,新疆,乌鲁木齐,830046

渭库绿洲 盐渍地 时空变异

国家自然科学基金

40861020

2011

农业系统科学与综合研究
中国系统工程学会农业系统工程委员会 中国科学院东北地理与农业生态研究所

农业系统科学与综合研究

CSTPCD
影响因子:0.811
ISSN:1001-0068
年,卷(期):2011.27(1)
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