不同地形因子下的长汀县土地利用时空变化特征  

The Spatial-temporal Variation Characteristics of Land Use with Different Topographic Features in Changting County

作　　者：邓超 陈志彪[1,2] 陈志强[1,2] Deng Chao;Chen Zhibiao;Chen Zbiqiang(The Ministry of Education Key Laboratory of Humid Subtropical Ecological Geographical Process,Fujian Normal University,Fuzhou 350007,China;College of Geographical Science,Fujian Normal University,Fuzhou350007,China)

机构地区：[1]福建师范大学湿润亚热带生态地理过程教育部重点实验室,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007

出　　处：《亚热带水土保持》2018年第2期1-5,共5页Subtropical Soil and Water Conservation

基　　金：福建省社会发展引导性(重点)项目"福建省稀土矿区差异化治理优化模式与评价"(2016Y0024);国家自然科学基金项目(41171232)资助

摘　　要：利用长汀县2000年和2016年Landsat TM影像的土地利用类型解译结果,用马尔可夫的转移矩阵法分析长汀县的土地利用结构时空变化,并重点分析耕地、林地和园地在不同高程、坡度上的分布状况和动态变化。结果表明,2000~2016年,林地面积增加,耕地面积减少,未利用地大量减少,园地面积增加。未利用地主要转变为林地、园地和建设用地,耕地主要转变为林地和园地。未利用地和耕地转变速率最快。随着海拔升高,林地面积先增加后减少,在800~1 000m高程带变化较大;耕地和园地面积随着海拔的升高而减少,主要分布在小于600m的区域。林地在6~15°内面积增加最多;耕地在15~25°坡度范围内变化最大;园地在高海拔和高坡度地区出现面积增加趋势,需加强对山地开发的监督。Interpreted by remote sensing images Landsat TM of Changting County in Year 2000 and 2016, it was ana- lyzed the spatial - temporal variation characteristics of land use types in Changting County by using the Markov transfer matrix method, giving high priority to the distribution and dynamic changes of farmland, woodland and garden plot at different altitudes and slopes. The result showed that the area of woodland and garden plot increased, while the area of unused land and farmland decreased from 2000 to 2016. Unused lands were mostly transformed into woodland and con- struction land, while the farmlands were mainly converted into woodland and garden plot. The unused land and fatmland were converted fast. Following with the increase of the altitude, the area of woodland first increased and then de- creased, and with great variation between the elevation zones of 800 - 1 000m. While the farmland and garden plot mainly distributed below 600m with the area decreased following with the increase of the altitude. The largest area in- creased of woodland was at the slopes of 6 - 15°, and the greatest changed - area of farmland and garden plot was at the slope of 15 ~ 25°. The areas of garden plot appered the trend of increase at the high altitude and high slope degree zones, it is necessary to strengthen the supervision on the mountainous area development.

关 键 词：土地利用类型 空间分布 高程 坡度 长汀县 

分 类 号：F301.24[经济管理—产业经济]