基于GIS和AHP的南阳市烟草种植生态适宜性评价

以南阳市8个植烟县的生态条件为基础,用特尔菲法确立了影响烟草生态适宜性的6个生态因子,根据各因子对烤烟生长与品质效应建立对应隶属度函数,将各因子的原始数值转化为隶属度,采用层次分析法确定6个评价指标的权重.并结合GIS空间叠置分析方法对6个评价指标进行叠加,获得了南阳市烟草种植生态适宜性分类图.结果表明,西峡县、内乡县、浙川县西北部、南召县西部、邓州市西北、西南部为1类适宜区;新野县、南阳市区、唐河县、镇平县、邓州市东部、社旗县、南召县南部较小面积为3类适宜区;而2类适宜区主要分布在方城县、桐柏县、淅川县中南部、南召县中东部、邓州市西部、社旗县东北部、唐河县东南部及镇平县西部边缘、南阳市北部部分地区.

Ecological suitability evaluation of Nanyang tobacco planting areas based on AHP and GIS

Based on the ecological conditions of eight tobacco planting counties of Nanyang,6 ecological factors related to the tobacco ecological suitability evaluation were established using Delphi method.According to the 6 various factors which affect the tobacco growth and quality,the corresponding membership degree function was established,and the original values of the factors were transformed into degree of membership,the weight of the factors were confirmed through Analytic Hierarchy Process(AHP),and overlaid ...