香格里拉土地利用垂直分异分析  

Vertical Differentiation of Land-use in Shangri-La

作　　者：马如彪[1] 程峰[2] 易邦进 付磊[2] 蒋莲芳[2] 

机构地区：[1]楚雄师范学院,云南楚雄675000 [2]云南师范大学,云南昆明650092 [3]云南省地质矿产勘查院信息中心,云南昆明650051

出　　处：《云南师范大学学报（自然科学版）》2011年第6期70-75,共6页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(40861009)

摘　　要：垂直分异是自然地理环境各组成要素或自然综合体沿地表按确定方向有规律地发生分化所引起的差异的客观规律。开展区域土地利用垂直分异研究,有助于揭示垂直分异规律,还能为当地农业发展、林业保护利用以及水土保持等提供一定服务。在GIS技术的支持下,利用土地利用数据和高程分级数据定量分析了香格里拉县土地利用规律,结果表明(1)土地利用结构随海拔高度的变化十分明显,形成了耕地—城镇建设用地、耕地—林地、林地—耕地—草地、林地—草地—耕地的牧—林、林地—灌丛—草地等多种利用模式;(2)同类土地利用类型的垂直变化,如城镇建设用地随着海拔的增高在每级所占的面积比例逐渐减少;常绿阔叶林、落叶阔叶林、针叶林和针阔混交林从海拔最低处到最高处的变化大致呈现先增加后减少的趋势等。造成这种分布特征的主要原因主要是地形垂直高差大引起气候垂直分异和民族和农业生产方式的垂直变化决定的。The vertical differentiation is the natural law that the differentiation of each element of the physical geography environment or natural complexes along the surface by determining direction.Research on regional land-use vertical differentiation will help to reveal the vertical differentiation and provide some services for the development of local agriculture,forestry,conservation and utilization,as well as water and soil conservation.Based onGIS technology and land-use classification data and elevation data,vertical differentiation of land use in Shangri-La County had been studied,the results show that（1） The variation of land use structure with altitudes is very obvious,the are many land-use models from valley to peak,such as cultivated land and built-land,cultivated land-forestry land,forestry land and grass land,forestry land-shrub-grass land.（2）The proportion of the same type of land-use in different elevation is variation.For example,the proportion of the built land in each level is decreased.The proportions of evergreen broad-leaved forest,deciduous broadleaf forest,and coniferous-conifer mixed forest is increased at first and decreased in the latter.The main reason of this distribution is vertical differences of climate,agricultural production and national minority mainly caused by vertical differences of landform.

关 键 词：香格里拉 土地利用 垂直分异 

分 类 号：K902[历史地理—人文地理学]