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遥感技术与应用  2008, Vol. 23 Issue (2): 173-178    DOI: 10.11873/j.issn.1004-0323.2008.2.173
研究与应用     
退牧还草工程项目遥感分析与效益评价——以四川省阿坝县为例
单丽燕1,贠旭疆1,董永平1,李新一1,唐川江2
(1.全国畜牧总站,北京 100026;2.四川草原工作站,四川 成都 610041)
Discussion on Remote Sensing Interpretation and Its Benefit Assessment of the Project of Return Grazing to Grass----A Case Study in Aba,Sichuan Province
SHAN Li-yan1,YUN Xu-jiang1,DONG Yong-ping1,LI Xin-yi1,TANG Chuan-jiang2
(1.National Animal Husbandry Service Ministry of Agriculture,Beijing 100026,China;
 2.General Station on Grassland Husbandry of Sichuan Province,Chengdu 610041,China)
 全文: PDF(1442 KB)  
摘要:

根据对卫星遥感影像的判读解译,探讨了利用3S技术(遥感(RS)、全球定位系统(GPS)、地理信息系统(GIS)技术)监测四川省阿坝县的退牧还草工程现状。通过陆地卫星TM遥感影像数据和同期野外调查数据,分析了植被指数与草地植被生物量之间的相关关系,建立了不同植被指数与草地生物量之间的一元线性回归模型和非线性回归模型。结果表明,利用遥感卫星的植被指数可以较好反映牧草植被群落变化和不同草原类型的牧草产草量差异。在全年放牧草地中,地上总生物量、植被总覆盖度、植被平均高度等指标均低于围栏内的草地。因此,利用“3S”技术可以对全县草原地上生物量进行遥感估测并对草原基况做出评价,客观反映退牧还草工程实施后效果。同时,为推动高空间分辨率卫星影像在我国草业和生态环境建设中的应用打下了坚实基础。

关键词: 3S技术 退牧还草草原    
Abstract:

he paper,as an example of the project of "Return Grazing to Grass with Remote Sensing in Aba,Sichuan Province",discusses that the application and technique of utilizing the "3S" technology (RS、GPS and GIS) to monitor the project.Using the Landsat Thematic Mapper data and the measured grass yield data,the monadic linear regression models and the non\|linear regression models were established,to express the relations between grassland biomass and the different vegetation indices.It was shown that different vegetation indices could reflect most of practical information on plant community dynamic of forage and the biomass difference among different grassland types.For year round unfenced grazing land,the total above ground biomass,overall vegetation coverage,and average plant height were all lower than for fenced land.So,the combination of 3S and the field investigation,which are characteristic of celerity,precision and efficiency,can find the project of Return Grazing to Grass condition with high precision,which available the scientific direction for the government's macro decision\|marking and layout.

Key words:  "3S"technology    Return grazing to grass    Grassland
收稿日期: 2007-10-28 出版日期: 2011-10-24
:  TP 79  
基金资助:

“十一五”支撑课题“草地灾害评估与治理关键技术研究”项目(2006BAD16B04-1)资助。

作者简介: 单丽燕(1979-),女,硕士,主要从事草原生态遥感监测等工作。E-mail:sly970@yahoo.com.cn。
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引用本文:

单丽燕,贠旭疆,董永平,李新一,唐川江. 退牧还草工程项目遥感分析与效益评价——以四川省阿坝县为例[J]. 遥感技术与应用, 2008, 23(2): 173-178.

SHAN Li-yan,YUN Xu-jiang,DONG Yong-ping,LI Xin-yi,TANG Chuan-jiang. Discussion on Remote Sensing Interpretation and Its Benefit Assessment of the Project of Return Grazing to Grass----A Case Study in Aba,Sichuan Province. Remote Sensing Technology and Application, 2008, 23(2): 173-178.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2008.2.173        http://www.rsta.ac.cn/CN/Y2008/V23/I2/173

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