Research on Vegetation Changes in Drainage Area Based on Integration of Streams Network and NDVI

LIANG Yi; LIU Kang; WANG Lei; ZHOU Hui; LIAN Jun-ying

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Research on Vegetation Changes in Drainage Area Based on Integration of Streams Network and NDVI

- Research on Vegetation Changes in Drainage Area Based on Integration of Streams Network and NDVI
- Bulletin of Soiland Water Conservation Vol. 26, Issue 5, Pages: 101-104(2007)
- 作者机构：
  
  1. 西北大学城市与资源学系,陕西,西安,710121
  2. 陕西省农业遥感信息中心,陕西,西安,710015
- 作者简介：
- 基金信息：
- DOI：
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- Published：2007
- 稿件说明：
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LIANG Yi, LIU Kang, WANG Lei, et al. Research on Vegetation Changes in Drainage Area Based on Integration of Streams Network and NDVI[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 101-104.
DOI：

LIANG Yi, LIU Kang, WANG Lei, et al. Research on Vegetation Changes in Drainage Area Based on Integration of Streams Network and NDVI[J]. Bulletin of Soiland Water Conservation, 2007, 26(5): 101-104. DOI：

摘要

利用GIS模拟旬河流域河流网络结构

根据河流网络结构建立缓冲区

分别研究了不同等级河流缓冲区内

1997年和2004年相同时段NDVI值的分布特征

分析了河流等级与其缓冲区内NDVI值的关系。结果发现

利用GIS模拟的山地数字河网能够很好地与真实河网吻合; 河流等级与其缓冲区内的ND-VI值存在负相关关系; 2004年河网缓冲区内NDVI值分布较1997年好

说明近几年旬河流域生态建设成效显著。

Abstract

Stream network structure in Xunhe watershed is simulated using GIS methods for the buffering area construction. NDVI in 1997 and 2004 is calculated to examine its relationship with stream order. Results indicate that stream network in mountain area can be well simulated

stream order and NDVI are closely re-lated

and the NDVI in 2004 is higher than in 1997. These suggest that the eco-environment in Xunbe water-shed has been improvement in recent years.

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