CAJ | 학술논문

植被指数作为反映地表植被状况的一个重要指示因子,在遥感监测大范围土地利用和土地覆盖变化及生态演变方面具有重要作用。本文基于中分辨率成像光谱仪的植被指数产品,采用变化矢量分析法,对比分析了甘肃省民勤绿洲2000年与2009年的植被覆盖时空变化规律。结果表明,植被覆盖程度在正向提高,CVA变差最大达到1.9,绿洲生态环境有所改善。
식피지수작위반영지표식피상황적일개중요지시인자,재요감감측대범위토지이용화토지복개변화급생태연변방면구유중요작용。본문기우중분변솔성상광보의적식피지수산품,채용변화시량분석법,대비분석료감숙성민근록주2000년여2009년적식피복개시공변화규률。결과표명,식피복개정도재정향제고,CVA변차최대체도1.9,록주생태배경유소개선。
Vegetation index is an important parameter of monitoring dynamic variations in land use cover and ecological evolution in a large scale.Based on the normalized difference vegetation Index data,the change of the vegetation conditions in Minqin oasis between 2000 and 2009,is discussed in this paper. As a result,the maximum CVA 1.9 indicates the effects of the hydraulic engineering and the ecological engineering carried on the district.