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Position: Home > Articles > Monitoring by remote sensing of vegetation growth in the project of grassland withdrawn from grazing in counties of china Acta Prataculturae Sinica 2007,16 (5) 13-21

我国退牧还草工程重点县草原植被长势遥感监测

作  者:
徐斌;陶伟国;杨秀春;覃志豪;高懋芳
单  位:
中国农业科学院农业资源与农业区划研究所
关键词:
MODIS数据;草原遥感;归一化植被指数;草原植被长势;退牧还草工程
摘  要:
利用遥感和地理信息系统等先进技术手段,基于MODIS数据,对我国4大主要草地类型区的退牧还草工程县的草原植被长势进行了监测,主要结论如下:1)内蒙古东部退化草原区2005年草原植被长势虽然差于2004年的面积有上升趋势,但是总体长势良好,明显好于2004年;2)蒙甘宁西部荒漠草原区2005年草原植被长势较差,虽然生长季节草原植被长势差于2004年的面积呈上升趋势,但总体相对比较稳定;3)新疆北部退化草原区2005与2004年相比长势持平的草地面积所占比重大,比较稳定,呈现出长势好差交替的时序变化格局;4)青藏高原东部江河源草原区2005年草原长势好于2004年的草地面积占本区总草地面积的48.07%,长势差于2004年的草地面积占本区草地总面积的32.56%,与2004年持平的占19.37%,由此表明青藏高原东部区草原长势明显好于2004年同期,长势差和长势好于2004年的草原面积波动较为明显。
译  名:
Monitoring by remote sensing of vegetation growth in the project of grassland withdrawn from grazing in counties of china
作  者:
XU Bin,TAO Wei-guo,YANG Xiu-chun,QIN Zhi-hao,GAO Mao-fang (Institute of Natural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China)
关键词:
MODIS data;remote sensing;NDVI;grassland vegetation growth;the project of grassland withdraw from grazing
摘  要:
The integration of 3S(RS,GIS,GPS) was used to monitor the vegetation growth in the project of the grassland withdrawn from grazing in the counties with MODIS data.Some conclusions are: 1) The areas of degraded grassland in 2005 were bigger than in 2006 in eastern Mongolia,but the whole grassland vegetation growth was better than in 2004;2) In 2005,vegetation growth in desertified grassland of western Inner Mongolia-Ningxia-Gansu was worse than in 2006 and the variance was smaller;3) The share of areas in northern Xinjiang grassland where vegetation growth was unchanged or larger and stable than 2004,and there appears to be a better-worse alternation of temporal changes;4) In the riverhead areas of the Yangtze and Yellow Rivers of the eastern Tibet Plateau,the areas where vegetation growth was better than 2006 occupy 48.1% of all grassland in the area,but vegetation growth was worse in 32.56% of the grassland areas in this region.Area where vegetation growth was unchanged relative to 2004 occupy 19.37% of all the area.Grassland growth in 2005 was better in the same period than in the previous year.

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