Effect of terrain on landscape patterns and ecological effects by a gradient-based RS and GIS analysis  

作　　者：Wenfeng Gong Haibo Wang Xiaofeng Wang Wenyi Fan Philip Stott 

机构地区：[1]College of Hydraulic and Electrical Engineering,Heilongjiang University [2]College of Forestry,Northeast Forestry University [3]School of Animal and Veterinary Sciences,The University of Adelaide

出　　处：《Journal of Forestry Research》2017年第5期1061-1072,共12页林业研究（英文版）

基　　金：supported by National High Technology Research and Development Program 863(Grant No.2012AA102001);Natural Scientific Foundation of Heilongjiang Province(Grant No.D201410);Natural Science Foundation of Heilongjiang Province Department Education Commission(Grant No.12531513)

摘　　要：Terrain is an important environment factor that plays a vital role in human development by influencing the spatial layout of land use patterns. The terrain niche index, combined with slope and elevation, can comprehensively present detailed information about spatial differences in terrain and is superior to single terrain factors. We applied remote sensing and geographical information system to terrain gradient, used the non-dimensional distribution index to examine spatial distribution characteristics of various landscape types, and analyzed the ecological effects of landscape were quantitatively on terrain gradients. Eco-environment quality (EEQ) was evaluated using the forestry operation area as the evaluation unit. The spatial distributions in various landscapes were significantly influenced by terrain factors, especially by bodies of water, cropland and residential land. The spatial distribution varied greatly in different terrain gradients for similar landscape types. The areas associated with good, intermediate and poor EEQ were occupied primarily by natural landscape, semi-natural and largely artificial landscapes, respectively.Terrain is an important environment factor that plays a vital role in human development by influencing the spatial layout of land use patterns. The terrain niche index, combined with slope and elevation, can comprehensively present detailed information about spatial differences in terrain and is superior to single terrain factors. We applied remote sensing and geographical information system to terrain gradient, used the non-dimensional distribution index to examine spatial distribution characteristics of various landscape types, and analyzed the ecological effects of landscape were quantitatively on terrain gradients. Eco-environment quality (EEQ) was evaluated using the forestry operation area as the evaluation unit. The spatial distributions in various landscapes were significantly influenced by terrain factors, especially by bodies of water, cropland and residential land. The spatial distribution varied greatly in different terrain gradients for similar landscape types. The areas associated with good, intermediate and poor EEQ were occupied primarily by natural landscape, semi-natural and largely artificial landscapes, respectively.

关 键 词：Terrain niche index Spatial distribution characteristics Distribution index Eco-environment quality 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P237[天文地球—测绘科学与技术] P901