基于生态位模型的县域乡村聚落用地适宜性评价OA

The evaluation accuracy of the existing county rural settlement land suitability evaluation methods is low,which can not provide favorable conditions for the rational division of county rural settlement land and efficient use of land resources,so the niche model is introduced to evaluate the suitability of county rural settlement land.From the aspects of natural conditions,resource conditions,social and economic conditions,geological disasters,agricultural land quality,road accessibility and other indicators are selected to complete the construction of county rural settlement land suitability evaluation index system.On this basis,each suitability index is quantified.Finally,combined with the niche model,the suitability evaluation model is constructed to evaluate the land suitability and determine the specific distribution of land use areas with different degrees of suitability.The comparative experiments show that the evaluation results obtained by the new evaluation method are more in line with the reality,the evaluation accuracy is higher,and the evaluation results can provide favorable conditions for realizing the regional division of land use.