Evaluation on Land Suitability of Low Hills Gentle Slope and Wasteland in Haiyang City

SHANG Kaili;YAN Hongwen;CHEN Xiao;College of Geography and Environment,Shandong Normal University;Haiyang Municipal Bureau of Land and Resources;

low hills gentle slope and wasteland;;suitable evaluation;;cultivated land;;construction land;;Haiyang city

The development and utilization of low hills gentle slope and wasteland is an effective way to strengthen the optimal allocation of land resources,alleviate the contradiction between land supply and demand,and realize the cultivated land balance.In this paper,the elastic and rigid evaluation factors are selected to build natural,economic,and social indicator system through the method of analytic hierarchy process.Secondly,low hills gentle slope and wasteland in Haiyang city on cultivated and construction land suitability are evaluated with the improved multi-factor comprehensive evaluation method.Thirdly,the suitability direction,which is appropriate for cultivated land and construction land,are confirmed according to the principle of neighborhood analysis,ArcGIS spatial analysis and prograrming method,providing the basis for the development and utiIization of Iow hills gentle slope and wastel and.T he results show that the northern area of arable appropriate of low hills gentle slope and wasteland is superior than that of the southern,the construction suitability is just the reverse.The area which is both appropriate for cultivated land and construction land is 7 759.45 hm~2,of which,6 835.78 hrrf is selected for cultivated land,and 923.67 hrrf is selected for construction land.The land area of arable appropriate is20 066.33 hrrf,mainly located in central and northern region;the land area of construction suitability is 5 515.24 hm~2,mainly located in the southern coastal,and the surrounding of central city and towns.