土地利用适宜性评价物元模型研究

针对当前土地利用适宜性评价方法中存在受主观性影响较大的缺点,研究基于可拓学理论,构建土地利用适宜性评价物元模型,并以位于河北省廊坊市西南部的大留镇为实验区,实现了农业用地适宜性评价物元模型实证研究。研究表明:物元模型是进行土地利用用途适宜性评价的有效方法之一;研究所设计的物元模型具有一定的实用性和可操作性,实证研究结果能够反映实验区实际情况;土地适宜性动态评价物元模型是以后土地利用适宜性评价物元模型发展的主要方向。

Research of matter-element model about land-use suitability evaluation

Matter-element analysis method and the theory and methods of extenics are used in the study to evaluate the agricultural land suitability comprehensively in combination with geographic Information system.Taking the suitability grade of land use,assessment indicators and their characteristic values as matter elements,this paper establishes a matter-element analysis model for agricultural land suitability assessment in Daliu town,which located in the southwest of Langfang city in Hebei province.The study results show that the matter-element analysis model can overcome the impact of human factors in the process of land use suitability evaluation to improve the assessment accuracy and operability.This model is proved to be rational,simple and practicable.Matter-element analysis method offers an objective scientific method for optimal evaluation and rational utilization of land resource.