Assessment on Ecological Security of Regional Land Resources based on Multidimensional Data

In this article,AHP—weight changing—Matter element analysis compound model was used to assess ecological security of regional land resources of study area.Membership was used in matter element analysis to convert incompatible issue to incompatibility issue and to decide Ecological Security grade of Regional Land Resources.Weight changing idea was introduced to calculate index weight.It is more flexibility and is better to reflect the importance of the index in the complex practical world.The result shows the ecological security condition of regional land resources and its spatial difference.This can instruct land ecological plan and construction.For GIS software can't complete complex model on desktop module directly,MATLAB software was used.MATLAB language is simple,popular and easy to understand.Its code is shorter than the fussy AML code and operation speed is more quickly.