Dynamic Monitoring of Vegetation Coverage by Remote Sensing in Longnan City of Gansu Province based on VBSI

DOI

10.2991/icreet-16.2017.64How to use a DOI?

Keywords

vegetation coverage; VBSI; mixed pixel decomposition model; remote sensing monitoring.

Abstract

Vegetation coverage is an important index to measure ecological environment. In this paper, the composite vegetation index (VBSI), which can weaken the interference of mountain shadow, soil background, rocks and buildings, was constructed. Combined with mixed pixel decomposition model, the dynamic monitoring of vegetation coverage in Longnan city in 1995 and 2015 was carried out. The results showed that the interference of shading information using VBSI for vegetation coverage estimation can be reduced to 45.77% of NDVI. Dynamic monitoring showed that the vegetation coverage in Longnan city had an increasing trend. The areas of low vegetation coverage decreased slightly whereas the areas of medium and high vegetation coverage increased significantly. High vegetation coverage areas were mainly distributed in Huixian county, Chengxian county, Liangdang county, Wudu district and the vicinity of Bailongjiang river where the project of conversion of degraded farmland into forest has implemented efficiently in Longnan city.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Songlin Zhang
AU  - Jinxiu Wang
AU  - Shuzhi Ji
PY  - 2017/03
DA  - 2017/03
TI  - Dynamic Monitoring of Vegetation Coverage by Remote Sensing in Longnan City of Gansu Province based on VBSI
BT  - Proceedings of the 2016 4th International Conference on Renewable Energy and Environmental Technology (ICREET 2016)
PB  - Atlantis Press
SP  - 377
EP  - 382
SN  - 2352-5401
UR  - https://doi.org/10.2991/icreet-16.2017.64
DO  - 10.2991/icreet-16.2017.64
ID  - Zhang2017/03
ER  -