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遥感技术与应用  2010, Vol. 25 Issue (3): 387-393    DOI: 10.11873/j.issn.1004-0323.2010.3.387
研究与应用     
基于MODIS NDVI的吉林省植被覆盖度动态遥感监测
苗正红1,刘志明1,王宗明2,宋开山2,任春颖2,杜 嘉2,曾丽红2
1.东北师范大学城市与环境科学学院,吉林 长春 130024;
2.中国科学院东北地理与农业生态研究所,吉林 长春 130012
Dynamic Monitoring of Vegetation Fraction Change in Jilin Province Based on MODIS NDVI
MIAO Zheng-hong1,LIU Zhi-ming1,WANG Zong-ming2,SONG Kai-shan2,DU Jia2,ZENG Li-hong2
1.Urban and Environmental Sciences College,Northeast Normal University ,Changchun 130024 ,China;2.Institute of Northeast Geography and Agricultural Ecology,Chinese Academy ofSciences,Changchun 130012,China;
 全文: PDF(3287 KB)  
摘要:

植被覆盖度是植物群落覆盖地表状况的一个综合量化指标,植被覆盖及其变化是区域环境变化的重要指示,对于区域水文及生态状况、全球变化的区域响应等都具有重要意义。以MODIS NDVI为数据源,采用像元二分模型,提取2000~2007年吉林省植被覆盖度,获取不同时期的植被覆盖度图,并进一步分析了植被覆盖度变化的原因。结果表明:吉林省植被覆盖度由东部到西部逐渐降低,其中白山地区植被覆盖情况最好。过去8 a间,吉林省植被覆盖度总体呈上升趋势,2007年植被覆盖度达到最高,为83.04%。在此期间,中部地区和西部地区植被覆盖增加了 797.52 km2,占总面积变化的74.79%。生态恢复工程、降水和气温等是影响植被覆盖度变化的主要因素。

关键词: NDVI植被覆盖度植被变化吉林省    
Abstract:

As a comprehensive quantitative indicator of surface conditions covered by plant communities,vegetation fraction and its changes become an important instruction of regional environmental changes,which has great significance for the regional hydrology and ecological conditions and even the regional response to global changes.In this paper,MODIS NDVI was selected as the data source to finish the extraction of vegetation fraction in Jilin from 2000 to 2007 and vegetation fraction maps from different periods using the two sub-pixel model.It also makes further analysis on the reason for the changes of vegetation fraction.It shows from the results that the vegetation fraction,which is best in Baishan,decreased gradually from east to west in Jilin.Over the past eight years,the overall trend of vegetation coverage in Jilin was on the rise,and the highest had reached 83.04% in 2007.During the period,the vegetation coverage in both central and western regions had increased 9 797.52 km2,accounting for 74.79% of the total area changes.The main factors affecting the changes of vegetation cover are those,the ecological restoration engineering,the precipitation,the temperature and so on.

Key words: NDVI    Vegetation fraction    Vegetation changes    Jilin
出版日期: 2010-10-20
基金资助:

中国科学院知识创新工程重要方向项目(KZCX2-YW-341),国家自然科学基金项目(40871187、40901096)和吉林省科技发展计划项目(20080128)。

通讯作者: 王宗明 E-mail:zongmingwang@neigae.ac.cn   
作者简介: 苗正红(1985-),男,硕士研究生,研究方向为资源环境遥感与GIS应用。E-mail:miaozhengh@163.com。
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引用本文:

苗正红, 刘志明, 王宗明, 宋开山, 任春颖, 杜 嘉, 曾丽红. 基于MODIS NDVI的吉林省植被覆盖度动态遥感监测[J]. 遥感技术与应用, 2010, 25(3): 387-393.

MIAO Zheng-hong, LIU Zhi-ming, WANG Zong-ming, SONG Kai-shan, REN Chun-ying, DU Jia, ZENG Li-hong. Dynamic Monitoring of Vegetation Fraction Change in Jilin Province Based on MODIS NDVI. Remote Sensing Technology and Application, 2010, 25(3): 387-393.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2010.3.387        http://www.rsta.ac.cn/CN/Y2010/V25/I3/387

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