特高压工程施工利用高分二号遥感影像进行水土保持远程监测研究

论述了遥感影像中图像正射校正、图像融合和支持向量机等遥感技术在国产高分二号影像中的应用,并展示了其研究成果应用于特高压工程水土保持远程监测效果。在实施中,对特高压工程施工期和试运行期分别进行监测,首先利用图像正射校正、影像融合以及支持向量机分类等遥感技术获取特高压工程水土保持远程监测各个要素面积,即施工期扰动土地总面积,试运行期扰动土地的整治面积、可恢复林草植被面积和林草类植被面积,进而计算水土保持效果评价的3个评价指标,即扰动土地整治率、林草植被恢复率和林草覆盖率。将研究成果应用于锡盟-山东特高压交流输变电施工过程中,实验结果表明,高分二号遥感影像技术能够有效应用于特高压工程水土保持远程监测,为特高压工程水保监督提供了优质低价、可长期持续的一种远程监测方法。

The Research on Remote Monitoring of Soil and Water Conservation Using Gaofen-2 (GF-2) Satellite in UHV Engineering Construction

This paper discusses the use of three types of remote sensing technologies based on GF-2, i.e. image ortho-rectification technique, image fusion technology and support vector machine (SVM) classification technology, and demonstrates the application in remote monitoring of soil and water conservation in UHV engineering construction. With image ortho-rectification technique, image fusion technology and SVM classification technology, this study monitors and extracts the related area of soil and water conservation, i.e. the disturbed area during the construction period, treatment area of disturbed land, recovery area of the forestry and grass, area of the forestry and grass during the trial operation period. Based on all the types of extracted area, the treatment percentage of disturbed land, recovery percentage of the forestry and grass and coverage percentage of the forestry and grass were calculated during the trial operation period. This method was used in Ximeng - Shandong UHV AC power transmission and transformation construction. The results indicate that China Gaofen remote sensing data is efficiently used in monitoring water and soil conservation project, and could provide a good, cheap and durable method in water and soil conservation supervision and environment assessment in the UHV power transmission and transformation construction.