Vegetation recovery monitoring and assessment at landslides caused by earthquake in Central Taiwan

被引：85

作者：

Lin, WT

Chou, WC ^{[1
]}

Lin, CY

Huang, PH

Tsai, JS

机构：

[1] Chung Hua Univ, Dept Civil Engn, Hsinchu 300, Taiwan

[2] Ming Dao Univ, Grad Inst Environm Planning & Design, Changhua 523, Taiwan

[3] Natl Chung Hsing Univ, Dept Soil & Water Consevat, Taichung 402, Taiwan

[4] Feng Chia Univ, Grad Inst Civil & Hydraul Engn, Taichung 407, Taiwan

[5] Chung Hua Univ, Dept Landscape Architecture, Hsinchu 300, Taiwan

来源：

FOREST ECOLOGY AND MANAGEMENT | 2005年 / 210卷 / 1-3期

关键词：

digital elevation model; vegetation recovery rate; landslide characteristics;

D O I：

10.1016/j.foreco.2005.02.026

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Massive landslides, caused by the catastrophic Chi-Chi earthquake in 1999, occurred at the Jou-Jou Mountain area in the Wu-Chi basin, Taiwan. Multi-temporal satellite images and digital elevation models coupled with GIS were used to process the vegetation index analysis for identifying landslide sites and calculating the vegetation recovery rate (VRR). Topographic information for these areas was extracted. Eight hundred twenty-nine hectares of landslide area was extracted from multi-date NDVI images by combining the image differencing method with the change detection threshold. Over 2 years of monitoring and assessing, the vegetation recovery rate reached 58.93% original vegetation regeneration in the landslide areas. Soil moisture is one of the most important environmental factors for vegetation recovery in the landslide sites. The analyzed results provide very useful information for decision making and policy planning in the landslide area. (c) 2005 Published by Elsevier B.V.

引用

页码：55 / 66

页数：12

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