周磊,贺聪聪,吕爱锋,王思宇,罗婷,王娅妮

• 1:北京建筑大学测绘与城市空间信息学院
• 2:中国科学院地理科学与资源研究所

摘要(Abstract)：

针对柴达木盆地土壤盐渍化的时空变化问题,该文采用了反演土壤盐度指数的方法快速评估了该地区的盐渍化程度变化及其空间分布,并且选择2015年利用土壤采样方法获取标本验证SI在研究区的适用性,集成RS技术和GIS空间分析的优势,综合利用空间分析和时序分析技术对柴达木盆地2000—2015年的盐渍化程度和分布面积进行了时空变化分析。研究结果表明了SI值在研究区的适用性,同时发现2000—2015年,柴达木盆地土壤盐渍化的面积和程度整体上均有明显降低趋势,尤其在重度盐渍化区域更为明显,但中、低度积盐面积,程度均有所增加。研究可以为柴达木盆地土壤盐渍化程度的快速评估提供参考。

关键词(KeyWords)： 盐渍化;土壤盐度指数;遥感反演;时空变化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(42077439);; 国家重点研发计划课题项目(2018YFC0706003,2017YFC1502402);; 青海省重大科技专项(2019-SF-A4-1);; 青海省自然科学基金项目(2019-ZJ-7020)

作者(Author): 周磊,贺聪聪,吕爱锋,王思宇,罗婷,王娅妮

DOI: 10.16251/j.cnki.1009-2307.2021.07.014

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