摘要
探讨了利用TM数据得到NDVI数据进行植被变化监测的方法,并以八仙山国家级自然保护区为例,利用1987、1992、1997、2002年TM数据,分析了该保护区1987年至2002年间植被指数的变化情况。结果表明,从1987年到2002年,该保护区植被总体受到了有效的保护并向好的方向发展,但部分地区植被有被破坏变差的现象,尤其是在人为活动较多的海拔较低的地区。
The method of dynamic monitoring of the vegetation by NDVI data obtained from TM data is discussed. Taking Baxian National Nature Reserve as an example, the changes of vegetation index from 1987 to 2002 in the reserve had been analyzed by means of TM data in 1987, 1992, 1997 and 2002. The results indi- cated that the vegetation in the reserve was effectively protected toward favorable direction in general, while the vegctation in partial area was destroyed and worsened, especially in the area of low elevation, which related to the influence by artificial factors.
出处
《林业调查规划》
2006年第1期54-57,共4页
Forest Inventory and Planning
基金
国家"十五"科技攻关项目"重大环境问题对策与关键支撑技术研究子课题"基于遥感的宏观生态监控技术研究(编号:2003BA614A-06-04)
国防科技工业民用专项项目"面向环境1号卫星的生态环境遥感关键技术及其应用示范研究"(科工技[2004]186)
关键词
自然保护区
植被变化
动态监测
遥感
八仙山
nature reserve
vegetation change
dynamic monitoring
remote sensing
Baxian mountain
