基于ETM+和DEM的西藏灌木林遥感分类技术

doi:10.11707/j.1001-7488. 20110103

Scientia Silvae Sinicae ›› 2011, Vol. 47 ›› Issue (1): 15-21.doi: 10.11707/j.1001-7488. 20110103

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Remote Sensing Classification Technique of Shrub in Tibet Based on ETM+ and DEM

Zhang Chao^1,2, Huang Qinglin², Zhu Xuelin³, Zhang Xiaohong², Pubu Dunzhu³, Dan Zeng³

1. Faculty of Natural Resources, Southwest Forestry University Kunming 650224;2. Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration Institute of Forest Resources Information Techniques, CAF Beijing 100091;3. Forest Inventory and Planning Institute of Tibet Autonomous Region Lasa 850000

Received:2009-12-07 Revised:2010-05-07 Online:2011-01-25 Published:2011-01-25

Abstract

Abstract:

The classification of shrub types in Tibet with the remote sensing would be efficient because of the large size of shrub patch and pure stand mostly. Based on an investigation on the main types of shrub in Tibet by using the remote sensing, elevation, slope, aspect and NDVI were chosen as the main factors influncing spatial distribution of shrubs and discriminate model and rules were established by using the method of discriminate analysis. The remote sensing classification technique of shrub,used in Tibet, was discussed, and an assistant classification was carried out based on spatial distribution. The result showed the accuracy of assistant classification was carried out based on the spatial distribution. Characteristics was 86.24%, which met the requirements of forestry production. The accuracy of the mixed forests of Sophora davidii , Hippophae and Tamarix ramosissima was 95.00%, and the accuracy of the other groups were 81.08% and 81.25%.

Key words: Tibet, shrub, remote sensing classification, spatial distribution

CLC Number:

S757
S771

Zhang Chao;Huang Qinglin;Zhu Xuelin;Zhang Xiaohong;Pubu Dunzhu;Dan Zeng. Remote Sensing Classification Technique of Shrub in Tibet Based on ETM+ and DEM[J]. Scientia Silvae Sinicae, 2011, 47(1): 15-21.

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Remote Sensing Classification Technique of Shrub in Tibet Based on ETM+ and DEM

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