| 应用MODIS数据进行土壤盐渍化评价方法研究 |
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| 引用本文： | 陈康,金晓媚,万力,马丽莎.应用MODIS数据进行土壤盐渍化评价方法研究[J].科技导报(北京),2009,27(14):59-63. |
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| 作者姓名： | 陈康 金晓媚 万力 马丽莎 |
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| 作者单位： | 陈康,金晓媚,万力,CHEN Kang,JIN Xiaomei,WAN Li(中国地质大学(北京)水资源与环境学院,北京,100083);马丽莎,MA Lisha(中国地质科学院水文地质环境地质研究所,石家庄,050061) |
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| 摘 要： | 土壤盐渍化是土地荒漠化的主要成因和表现形式,是一个世界性的资源问题和生态问题,给人类社会带来了严重的经济损失和生态危害.探讨了利用中分辨率遥感数据,对区域性盐渍化土壤进行分类评价的方法.以银川平原为例,选用分辨率为500 m的MODIS遥感影像数据,运用非监督图像分类方法中的ISODATA算法,对该区域的土壤盐渍化程度和分布状况进行定性和定量的评价分析.分析结果表明,在银川平原区内,非盐渍化土面积约4 088.50 km2,重度盐渍化土面积约170.00 km2,中度盐渍化土面积约659.00 km2,轻度盐渍化土面积约1 653.50 km2.与实际调查资料对比,得出本次分类结果精确度为77.6%.
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| 关 键 词： | MODIS遥感数据 土壤盐渍化 ISODATA算法 |
Assessment of Soil Salinization Using MODIS Data |
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| CHEN Kang,JIN Xiaomei,WAN Li,MA Lisha .School of Water Resources , Environment,China University of Geosciences,Beijing ,China.Assessment of Soil Salinization Using MODIS Data[J].Science & Technology Review,2009,27(14):59-63. |
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| Authors: | CHEN Kang JIN Xiaomei WAN Li MA Lisha School of Water Resources Environment China University of Geosciences Beijing China |
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| Institution: | CHEN Kang1,JIN Xiaomei1,WAN Li1,MA Lisha2 1.School of Water Resources , Environment,China University of Geosciences,Beijing 100083,China 2.Institute of Hydrogeology , Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China |
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| Abstract: | Soil salinization is a worldwide issue of resources and ecology.It causes serious economic losses and ecological hazard for the society.The desertification caused by salinization is become the main genesis and format of the desertification.The method of assessment of regional soil salinization based on mid-resolution remote sensing data was discussed in this paper.The situation of soil salinization in Yinchuan Plain located in the northern part of Ningxia Province is very typical.The Yinchuan Plain was take... |
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| Keywords: | MODIS data soil salinization ISODATA |
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