基于叶面积指数的植被覆盖管理措施因子C的遥感定量估算

doi:10.11707/j.1001-7488.20130213

›› 2013, Vol. 49 ›› Issue (2): 86-92.doi: 10.11707/j.1001-7488.20130213

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Quantitative Assessment of Vegetation Cover and Management Factor Based on Leaf Area Index and Remote Sensing

Lin Jie¹, Zhang Jinchi¹, Gu Zheyan¹, Wu Yümin²

1. College of Forest Resources and Environment, Nanjing Forestry University Nanjing 210037;2. Jiangning Water Conservancy Bureau Nanjing 211112

Received:2012-05-23 Revised:2012-10-09 Online:2013-02-25 Published:2013-02-25

Abstract

Abstract: Vegetation cover is one of the most crucial factors to determine soil erosion. The forest structure is characterized by the LAI (leaf area index) distribution and the roughness of the canopy from a remote sensing point of view. This paper proposed a method to assess vegetation cover and management factor (C) using leaf area index as input factor,establish the LAI retrieval method based on remote sensing,and then to inverse the quantity coupling model for the C factor and LAI. The results show that soil erosion modulus of the runoff plots is 455.89 t·km^-2a^-1.According to the national classification standard of soil erosion intensities in China,it is micro-erosion.This exactly coincides with the field observations. This means that LAI is a good substitute for vegetation cover in studies on assessing the soil erosion.

Key words: vegetation cover and management factor, remote sensing, leaf area index(LAI)

CLC Number:

S758

Lin Jie;Zhang Jinchi;Gu Zheyan;Wu Yümin. Quantitative Assessment of Vegetation Cover and Management Factor Based on Leaf Area Index and Remote Sensing[J]. , 2013, 49(2): 86-92.

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Quantitative Assessment of Vegetation Cover and Management Factor Based on Leaf Area Index and Remote Sensing

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