| 基于3S技术的长江中上游防护林动态监测研究 |
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| 引用本文： | 岳彩荣.基于3S技术的长江中上游防护林动态监测研究[J].西北林学院学报,2004,19(4):162-164,173. |
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| 作者姓名： | 岳彩荣 |
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| 作者单位： | 西南林学院,资源学院,云南,昆明,650224;北京林业大学,北京,100083 |
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| 基金项目： | 云南省青年基金课题"长江防护林工程(云南部分)遥感调查研究"(96C0680) |
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| 摘 要： | 为弄清“长防林”工程在云南的建设现状和实施效果,采用TM遥感数据,应用分类树与分层分类方法,结合特征选取与多种分类算法相结合的图像处理信息识别分类方法,提取昭通、大关2市县的森林植被、土地利用等信息。在GIS支持下,编制了研究区的森林分布图,并利用2期图像作了动态监测研究。研究结果表明,采用分层次、多种信息提取方法可满足“长防林”工程区的森林覆盖的信息提取要求,得出了“长防林”实施以来研究区的森林覆盖率增加了11．2％。
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| 关 键 词： | 3S技术 森林植被 动态监测 |
| 文章编号： | 1001-7461(2004)04-0162-03 |
Mornitoring Dynamics of Protection Forests on Middle and Upper Reaches of the Yangtze River Based on 3S Technique |
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| YUE Cai-rong.Mornitoring Dynamics of Protection Forests on Middle and Upper Reaches of the Yangtze River Based on 3S Technique[J].Journal of Northwest Forestry University,2004,19(4):162-164,173. |
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| Authors: | YUE Cai-rong |
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| Abstract: | Processes on deriving information of forest vegetations and other land covers from Landsat TM data by use of decision tree and analytic hierarchical process methods combining techniques such as spectral threshold algorithm , supervised and unsupervised classifications and the manual interpretation are discribed. Current forest cover percent and dynamic change in the research area since the starting of protecting forest project for Yangtze River in 1989 were monitored. Moreover, forest distribution was mapped on the platform of GIS. The results showed that the approach of multi-stage classifications combined with various information extraction techniques was suitable for monitoring forest land cover change in the area of Yangtze River Protect Forest. |
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| Keywords: | 3S technique forest vegetation dynamic change monitoring |
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