CBERS影像数据在土壤盐渍化评价中的应用——以焉耆盆地为例  

Application of CBERS Image to Soil Salinization Assessment——Taking the Yanqi Basin,Xinjiang as an Example

作　　者：李会志[1] 李新国[1] 王影[1] 任云霞[1] 

机构地区：[1]新疆师范大学地理科学与旅游学院,乌鲁木齐830054

出　　处：《遥感信息》2010年第3期99-102,共4页Remote Sensing Information

基　　金：新疆维吾尔自治区高校科研计划基金(编号:XJEDU2009S69)

摘　　要：采用CBERS遥感影像数据,对焉耆盆地不同类型典型地物进行光谱分析。根据不同地物在不同波段的光谱特征曲线,分别选取第一、第三波段与BI指数合成并进行监督分类。结合土样分析结果,评价了焉耆盆地内土壤盐渍化程度。结果表明,盐渍土主要分布于开都河沿岸和博斯腾湖北岸地区,其中30%为轻度盐渍地,9.1%为中度盐渍地,5.5%为重度盐渍地。CBERS image was used to analyze the spectral characteristics of different ground objects in this paper.According to the spectral characteristic curves of different ground objects in different bands,the first band,the third band synthesized with the BI index and supervised classification were conducted.Based on the results of geophysical test and soil samples analysis,the contiguity analysis was also undertaken.Finally,the soil salinization grade and distribution in Yanqi Basin,Xinjiang were assessed.The assessment results show that the ratio of low-grade salinization soil area is 30%,the middle grade salinization soil area is 9.1%,and the heavy-grade salinization soil area is 5.5% in the north plain of Yanqi Basin,Xinjiang.

关 键 词：遥感 CBERS 土壤盐渍化 评价 焉耆盆地 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]