Land Ecological Quality Evaluation Based on GIS and Its Influencing Factors Analysis---A Case Study of Pingdingshan City
ZHANG Hebing
CHEN Ningli
SUN Jiangfeng
LIU Mingyuan
LI Yue
QIN Weixia
Abstract：Taking the grid as evaluation units,the index system was established including land ecological natural conditions,structural conditions,ecological disturbance and ecological construction,the quality of land ecological quality was evaluated by ARCGIS software and synthetic index method,and the influen-cing factors were analyzed, so as to provide reference for land use and policy adjustment. The results showed that the land ecological quality in different region of Pingdingshan city was obviously different,the land ecological quality was excellent in the midwest of Lushan county;the land ecological quality were good in the east of Lushan county,Ruzhou city,Baofeng county,Yexian county and Wugang city;the land ecological quality was medium in Jiaxian county except Chengguan town;the land ecological quality was fair in Chengguan town of Jiaxian county,Beidu town and Caozhen country of Zhanhe district,and Xinhua district;the land ecological quality was poor in Baiguishan reservoir management zone of Zhanhe district, Shilong district and Weidong district. The major influence factors of land ecological quality were the extent of soil contamination and population density,the limiting factors were proportion of forest land and protec-tion forest, proportion of no-pollution high grade cultivated land, proportion of ecological infrastructure and plant biomass.
Keywords：land ecologysynthetic index methodobstacle amountquality gradeARCGIS
Publication Date：2015-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：8( 62-69 )