基于地形因子空间分异的景观安全等级评价  

Landscape Safety Degree Value Was Studied on the Mountain Factors Differentiation

作　　者：张春英[1,2] 兰思仁[2] 董建文[2] 李文英[1] 杨文欣[1] 

机构地区：[1]福建工程学院建筑与城乡规划学院,福建福州350118 [2]福建农林大学艺术园林学院,福建福州350002

出　　处：《福建林业科技》2015年第3期132-136,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省科技厅自然基金项目(2012071);国家林业局林业公益行业科研专项(201404030109)

摘　　要：利用Arc GIS和Fragstats软件,基于一阶地形因子空间分异对世界自然遗产地的景观安全等级进行评价。结果表明:随着坡度的增加,景观安全等级也略微升高;坡向景观带安全等级降序排列为东坡、西坡、北坡、东北坡、西北坡、西南坡、南坡、东南坡、无坡向;海拔景观带安全等级从高到低依次为H>2000 m,1600 m<H≤1800 m、1400 m<H≤1600 m、1200 m<H≤1400 m、1800 m<H≤2000 m、H≤400 m、1000 m<H≤1200 m、800 m<H≤1000 m、600 m<H≤800 m、400 m<H≤600 m。Using ArcGIS and Fragstats software,Landscape safety degree value was studied on the first order mountain factors differ-entiation.The result showed that：with the slope increasing,landscape safety degree was increase slightly;descending order of aspect landscape safety degree was east aspect,west aspect,north aspect,northeast aspect,northwest aspect,southwest aspect,south aspect, southeast aspect,plain;descending order of altitude landscape safety degree was H〉2000 m,1600 m〈H≤1800 m,1400 m〈H≤1600 m,1200 m〈H≤1400 m,1800 m〈H≤2000 m,H≤400 m,1000 m〈H≤1200 m,800 m〈H≤1000 m,600 m〈H≤800 m, 400 m〈H≤600 m.

关 键 词：坡度 坡向 海拔 景观安全等级 

分 类 号：P901[天文地球—自然地理学]