摘要
借助RS和GIS软件对研究区域3个时期的遥感影像进行监督分类,得到两个时段的土地利用变化转移矩阵和不同土地利用/土地覆被类型的空间转化过程. 进一步的分析认为近十几年来研究区域土地利用变化的空间景观特征表现为:1987～1996年未利用土地的面积变化最大,林地和农业用地的破碎化趋势比较明显;1996～1999年林地的面积变化最大,未利用土地的空间分布呈分散化趋势. 研究期内土地利用结构时空变化表现为:土地利用程度由衰退期或调整期转变为发展期,土地利用的时间动态特征由快速变化型转变为慢速变化型.
By the RS and GIS technology the Landsat TM images in 1987, 1996 and 1999 in the studied district is classified, then after the classified outcome is more disposed the land-use change matrix about two contemporary and the spatial changing courses between the five sorts of land-use/land-cover is come out. Through more analysis we get two final conclusions. The first conclusion is that the spatial landscape characteristics of land use in the studied district is from 1987 to 1996 the area-change of disused land is bigger than the others and in space the break tide of the forestland and the agricultural land is obvious. From 1996 to 1999 the area-change of forestland is biggest than the others and in space the trend disperse of non-arable land is clear. The second conclusion, the changing of spatial-temporal feature of land-use structure from 1987 to 1999, is that the degree of land-use in studied district is from winter or adjustment phase to development phase and the temporal-dynamitic feature of land-use is from quick-changing to slow-changing.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2005年第2期46-51,共6页
Journal of Henan University:Natural Science
基金
河南省社会科学基金资助项目(2001EJJ004)
河南省杰出青年基金资助项目(9920)
关键词
土地利用/土地覆被
土地利用结构
豫西地区
动态监测
Land use/land cover
the structure of land-use
the west of Henan province
dynamitic monitor
