基于GIS技术的常山胡柚栽培气候适宜性区划应用

Application of Zonal Adaptation of Changshan Grapefruit Based on GIS Technology

[目的]研究浙江省常山县胡柚气候适宜性区划,为胡柚的种植提供科学指导。[方法]考虑对胡柚树体生长发育和产量有较大影响的气候生态因子,分析胡柚产量与气象、地形要素的关系,采用专家打分法对综合指标进行量化分级,建立胡柚种植的综合区划指标,并建立评估模型。利用层次分析法,得到各区划指标权重值,采用加权指数求和模型计算得到常山胡柚栽培综合区划图。[结果]除了东北部及南部的山地丘陵一带,常山大部分位于胡柚适宜与较适宜区,其中中部的长风电站一带为适宜种植区,可大面积种植胡柚。胡柚种植受温度及热量资源影响最大。[结论]该区划结果可为胡柚种植的合理布局及可持续发展提供科学依据。

[ Objective]To make the zoning map of the climate suitability of Grapefruit in Changshan County, and provide scientific guidance for the cultivation of Grapefruit. [ Method ] Considering the climatic and ecological factors of the growth and yield of Grapefruit tree, the rela-tionships between the yield and the influencing factors were analyzed. Based on the expert scoring method, we quantify the comprehensive in-dex ,and then we establish the comprehensive zoning index of citrus cultivation, and further the evaluation model was built. Using the method of analytic hierarchy process, the weight of each zoning index was obtained, and the comprehensive zoning map of Changshan Grapefruit was obtained by using the weighted index summation model. [ Result] Except the hills and mountains in the northeast and south, most of Changs-han is located in the appropriate and suitable area of Grapefruit, in which the central Changfeng power station area is more suitable for planting area and can be planted in large area. The cultivation of grapefruit is the most affected by temperature and heat resources. [ Conclusion ] The result of zoning can provide scientific basis for the optimal layout of Grapefruit cultivation and the adjustment of seed structure.