基于ArcGIS的临汾市西山果树区划生态适宜性评价

Ecological Suitability Evaluation of Xishan Area Fruit Trees Zoing in Linfen City Based on ArcGIS

以临汾市西山地区七县各乡镇为评价单元,利用2007-2016年的气象数据、土壤养分监测数据、地势数据等基础数据,根据果树生态适宜性评价需要确定了8个评价指标,建立评价模型。通过专家咨询法、多因素综合分析法、基于Arcgis10.2软件的Krigin插值法和叠加分析法,分别对苹果、梨、核桃等3个主栽树种进行了生态适宜性评价。根据综合评价得分,将不同果树的生态适宜性分为优生区(U≥0.8)、适宜区(0.7≤U<0.8)、次适宜区(0.5≤U<0.7)和非适宜区(U<0.5)4个等级。根据评价结果绘制2个树种在临汾市西山地区的适宜性分布图,为果树区划提供科学参考。

Taking towns of seven counties in western area of Linfen as the evaluation unit,using the basic data such as meteorological data from 2007 to 2016,soil nutrient monitoring data,topographic data and natural disaster incidence rate,12 indexes of climate and soil were selected according to the ecological suitability evaluation requirements of Yuluxiang pear to Establish an evaluation model.Through the expert consultation method,multi-factor comprehensive evaluation method,Kriging interpolation method based on Arcgis10.2 software and superposition analysis method,the ecological suitability of Apple,Pear,Walnut in this area was comprehensively evaluated.The ecological suitability map of Yulu Xiang pear in western area of Linfen City was drawn according to the evaluation results.Results led to 4 different grades including the optimum area(U≥0.8),suitable area(0.7≤U<0.8),and secondary suitable area(0.6≤U<0.7),unsuitable area(U<0.6).According to the evaluation results,the distribution map of the main tree species in the western area of Linfen was drawn,and provide scientific reference for fruit tree zoning.