基于GIS的云南山区玉米生态适宜性评价方法与应用

李超,李文峰,赵耀,尚敬敏

A Method of Ecological Suitability Evaluation and Its Application for Maize Planted in Mountain Farmland Based on GIS (Case Study: Xundian County)

LI Chao,LI WenFeng,ZHAO Yao,SHANG JingMin

表3 概念型评价指标隶属度

Table 3 Membership function for conceptual factors

评价指标 Evaluation index 描述 Description 专家评估值 Expert evaluation value 排涝能力 Irrigation 指标Index 优Excellent 良Good 中Fair 较差Worse 差Poor 隶属度Membership 1.0 0.8 0.6 0.4 0.2 灌溉保证率 Drainage 指标Index 80-95 65-80 50-65 30-50 隶属度Membership 1.0 0.9 0.7 0.5 成土母质 Parent material 指标Index 5, 6, 8 9 7 3, 4 1, 2 隶属度Membership 1 0.8 0.7 0.5 0.4 坡向 Aspect 指标Index 南 North 东南、东 Southeast, East 西南 Southwest 西 West 北、东北、西北 North,Northeast,Northwest 隶属度Membership 1 0.8 0.7 0.6 0.4 土壤质地 Soil texture 指标Index 中壤 Medium loam soil 轻壤 Light soil 黏壤 Clay loam soil 砂壤 Sandy loam soil 隶属度Membership 1.0 0.9 0.8 0.7 地貌类型 Topographic type 指标Index 1-3 4 5-6 7-10 11-16 隶属度Membership 1.0 0.9 0.8 0.7 0.6 海拔 Altitude 指标Index ≤1900 1900-2200 2200-2600 2600-3100 ≥3100 隶属度Membership 1 0.9 0.8 0.7 0.5