| 基于RS的石羊河流域植被覆盖度动态监测 |
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| 引用本文： | 韩兰英,王宝鉴,张正偲,万信,杨永顺. 基于RS的石羊河流域植被覆盖度动态监测[J]. 草业科学, 2008, 25(2): 11-15 |
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| 作者姓名： | 韩兰英 王宝鉴 张正偲 万信 杨永顺 |
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| 作者单位： | 中国气象局兰州干旱气象研究所,中国气象局干旱气候变化与减灾开放实验室甘肃省干旱气候变化与减灾重点实验室,甘肃,兰州,730020;兰州区域气候中心,甘肃,兰州,730020;兰州区域气候中心,甘肃,兰州,730020;中国科学院寒区旱区环境与工程研究所,甘肃,兰州,730000;青海省环境监测中心,青海,西宁,810007 |
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| 基金项目： | 中央级科研院所技术开发研究专项基金，甘肃省气象局科研项目 |
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| 摘 要： | 采用NOAA和EOS/MODIS遥感影像资料,计算并分析了石羊河流域1997-2006年的植被演变特点.结果表明,自1997年以来石羊河流域的植被盖度发生了非常明显的变化,植被总体上仍然向退化方向发展,生态环境进一步恶化.植被退化主要表现在稀疏植被和茂密植被的大幅减少方面,稀疏植被有向裸地转化的趋势,茂密植被逐渐向适中植被和稀疏植被转化.
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| 关 键 词： | 石羊河流域 植被盖度 遥感 动态监测 |
| 文章编号： | 1001-0629（2008）02-0011-05 |
| 收稿时间： | 2007-01-25 |
| 修稿时间： | 2007-01-25 |
Remote sensing based dynamic monitoring on change of vegetation cover in Shiyanghe River watershed |
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| HAN Lan-ying,WANG Bao-jian,ZHANG Zheng-cai,WAN Xin,YANG Yong-shun. Remote sensing based dynamic monitoring on change of vegetation cover in Shiyanghe River watershed[J]. Pratacultural Science, 2008, 25(2): 11-15 |
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| Authors: | HAN Lan-ying WANG Bao-jian ZHANG Zheng-cai WAN Xin YANG Yong-shun |
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| Abstract: | The data of NOAA and EOS/MODIS in Shiyanghe River watershed from 1997 to 2006 were used to calculate and analyze the vegetation change.The result shown that the vegetation cover significantly changed and the vegetation and ecological environment degraded.The degradation characterization was that the area of sparse or dense vegetation was reduced,and the sparse vegetation changed into the bare land and the dense vegetation gradually changed to moderate vegetation and sparse vegetation. |
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| Keywords: | Shiyanghe River watershed vegetation cover remote sensing dynamic monitoring |
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