摘要
本文基于Landsat TM/ETM+影像提取了1990~2010这20年间楚雄州林地、灌草地面积的变化,结果表明,楚雄州在1990~2010年这20年,林地、灌草地面积变化明显,整个地区的林地面积从59.56%下降到34.11%,下降值为25.45%,林地面积下降最快时间段是1990~2000年,总体呈下降趋势;灌草地面积从32.63%上升到60.37%,上升值为27.74%,总体呈增长趋势。
This paper extracted forest and shrub-grass land area from 1990 to 2010 in Chuxiong prefecture based on the Landsat TM/ETM + images. The results showed that the forest and shrub-grass land area changed significantly. The forest area decreased from 59.56% to 34.11%, the change range was 25.45%, and the fastest falling time period was from 1990 to 2000, and it presented a downward trend generally. The shrub-grass land area increased from 32.63% to 60.37%, the change range was 27.74%, and it presented a rising trend generally.
出处
《林业世界》
2015年第4期49-57,共9页
World Journal of Forestry
基金
云南省高等学校卓越青年教师特殊培养项目
楚雄师范学院遥感概论精品课程项目成果。
