Research on Optimal Allocation Scheme of Land Resources Based on Ecological Function Zones in the Yellow River Delta

The optimal allocation of land resources is one kind of measures,of which the essence is to judge the ecological suitability of land types and their structural difference.Artificial regulation technologies are utilized to adjust and arrange the structure of land use,which is different from natural ecological structure.Furthermore,land resources can be used in the best way and the region can be developed in a sustainable way.In the paper,according to the status quo of the Yellow River Delta(YRD),for the purpose of protecting and improving ecological environment,land use is arranged according to land suitability,and the results are used to optimize the allocation of land resources and to implement the optimal allocation of land resources in practice.Based on the model and using GIS,the land for cultivation is computed and analyzed,and its total amount is up to 2656.301 km2.Finally,a comprehensive suitability index of land use is referred and utilized,and the results show that the distribution rule of land suitability is that it increases gradually and symmetrically to the both sides of the current Yellow River channel.In a word,from the view point of ecology,it is comparatively reasonable for land resources to be optimally allocated according to ecological functional zones in the YRD.