| 干旱区土壤盐渍化遥感监测方法研究 |
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| 引用本文： | 江红南,徐佑成,塔西甫拉提·特依拜,阿不都·海力力.干旱区土壤盐渍化遥感监测方法研究[J].云南地理环境研究,2007,19(1):51-55. |
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| 作者姓名： | 江红南 徐佑成 塔西甫拉提·特依拜 阿不都·海力力 |
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| 作者单位： | 1. 新疆大学,资源与环境科学学院,新疆,乌鲁木齐,830046
2. 新疆大学,资源与环境科学学院,新疆,乌鲁木齐,830046;吐鲁番地区文物局,新疆,吐鲁番,838000 |
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| 基金项目： | 国家自然科学基金项目（40261006）;新疆自治区高校科研计划项目（XJEDU2004106）资助. |
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| 摘 要： | 准确提取盐渍化信息对土壤盐渍化监测和研究盐渍化动态变化具有重要意义。先对除去TM6含有6个多光谱波段的TM图像分别做主成分、缨帽变换，然后在对遥感数据和其派生数据分析和实验的基础上，得出TM数据的可见光和近红外波段之一和第三主成分及缨帽变换后的绿度特征做彩色合成能较好的揭示土壤盐渍化信息，TM数据多光谱波段的选取依研究区而定，此方法的效果受土壤含水量的影响。最后对合成图像分类得出了研究区盐渍地的数量和分布情况。
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| 关 键 词： | 遥感 干旱区 盐渍化 第三主成分 |
| 文章编号： | 1001-7852(2007)01-0051-05 |
| 修稿时间： | 2006-03-21 |
THE REMOTE SENSING MONITORING STUDY ON SOIL SALINIZATION IN ARID AREA |
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| JIANG Hong-nan,XU You-cheng,Tashpolat Tiyip,Abdu Helil.THE REMOTE SENSING MONITORING STUDY ON SOIL SALINIZATION IN ARID AREA[J].Yunnan Geographic Environment Research,2007,19(1):51-55. |
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| Authors: | JIANG Hong-nan XU You-cheng Tashpolat Tiyip Abdu Helil |
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| Institution: | 1.School of Resources and Environmental Science, Xinjiang University, Urumqi 830046, Xinjiang, China |
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| Abstract: | Eco-environment of western arid area is feeble.Soil salinization damaged ecosystem seriously,so it is necessary to study the arid area salinization.But extracting salinization information accurately is the base of the study. This article makes Yutian County as an example in south of Tarim river basin of Xinjiang. Firstly, made K- T and principal component transformations respectively using six multi-spectrum bands without the TM6 band of TM image. Secondly based on the analysis of 1989 TM image ,select respectively TM1 of TM images, the third principal component and greenness as the character variable, then make multicolor composite using the three selected components. Finally find using one band of TM image, the third principal component and greenness to make multicolor composite is a better way to extract salinization information accurately. Which band of TM image to select is decided by the study area. The third principal component shows the humidity of surface soil, but contains the most information of salinization soil. the surface soil humidity is the main factor that affects the method. then gained the quantity and distribution of the salinization Soil of the study area in 1989. |
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| Keywords: | remote sensing arid area salinization the third principal component |
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