[1]王兮之,陆龙,梁钊雄.青海湟水流域植被覆盖度时空变化分析[J].水土保持研究,2010,17(06):172-176.
　WANG Xi-zhi,LU Long,LIANG Zhao-xiong.Analysis on Temporal-spatial Change of Vegetation Coverage in Huangshui Watershed[J].Research of Soil and Water Conservation,2010,17(06):172-176.
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青海湟水流域植被覆盖度时空变化分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年06期 页码: 172-176 栏目: 出版日期: 2010-12-20
Title:
Analysis on Temporal-spatial Change of Vegetation Coverage in Huangshui Watershed
作者:
王兮之1, 陆龙2, 梁钊雄1
1. 佛山大学 资源环境系, 广东 佛山 528000;
2. 兰州工业研究所, 兰州 730050
Author(s):
WANG Xi-zhi1, LU Long2, LIANG Zhao-xiong1
1. Department of Resources and Environment, Foshan University, Foshan, Guangdong 528000, China;
2. Lanzhou Industry Research Institute, Lanzhou 730050, China
关键词:
植被覆盖度; NDVI; MODIS; 湟水流域
Keywords:
vegetation coverage; NDVI; MODIS; Huangshui watershed
分类号:
X171.4
摘要:
利用2001-2009年的MODIS遥感数据与归一化植被指数的像元二分模型，并结合湟水流域的地形特征数据，分析流域内植被覆盖度时空变化动态特征。结果表明：湟水流域的植被覆盖度空间分布差异十分显著，基于地形特征的脑山区（69.47%）、浅山区（56.46%）和川水区（45.43%）植被覆盖度地带性特点明显；近9年来湟水流域总体植被覆盖度略有下降，尤其是高植被覆盖度减少了17.23%，而较高植被覆盖度增加了12.15%；脑山区的高植被覆盖度与较高植被覆盖度之间转换剧烈，浅山区的各级植被覆盖度都相对稳定，川水区的中植被覆盖度与较低植被覆盖度之间转换明显。
Abstract:
Using the 250 m resolution of MODIS-NDVI data from 2001 to 2009, as well as combining with dimidiate pixel model and terrain data of Huangshui watershed, the characteristics of dynamic changes of vegetation cover were analyzed in the past 9 years in this paper. Results showed that spatial pattern vegetation cover was obviously different of whole watershed. Based on terrain feature, vegetation coverage had obvious eco-geographical distribution characteristics of high mountain region (69.47%), middle mountain region (56.46%) and loess hill region (45.43%). The average vegetation coverage of the whole area was slightly decreased over the last 9 years. The high vegetation coverage decreased by 17.23%, and upper vegetation coverage increased by 12.15%. Analyzing spatial changing characteristics of vegetation cover in the whole study area, we can see that most sharply transforms were represented between high and upper vegetation coverage in high mountain region, relative stabilization of middle mountain region, also obviously transform of loess hill region.

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备注/Memo

收稿日期:2010-5-28
基金项目:国家自然科学基金项目（31070426）
作者简介:王兮之（1971- ），男，甘肃省兰州市人，博士，副教授，主要研究流域生态学。E-mail：Wangxizhi71@163.com

更新日期/Last Update: 1900-01-01