基于遥感技术的盐池县草场植被覆盖度变化监测

Dynamic monitoring of the vegetation coverage using remote sensing technology in Yanchi County

利用盐池县2000年、2007年与2012年三期卫星影像数据,通过植被指数(NDVI)提取,并且与实地植被调查资料相结合,对该地区植被覆盖度变化进行了监测.结果表明,随着近年来封山禁牧和退耕还林还草政策的实施,盐池县草场植被覆盖度状况明显好转.

By using satelite image data of Yanchi in the year of 2000、2007 and 2012.The vegetation coverage change of Yanchi was monitored.The data indicated that the vegetation coverage of yanchi became better.