基于GIS的赤壁市茶叶种植适宜性评价研究

开展茶叶种植适宜性评价是选择合适的茶叶种植地的首要任务。以赤壁市为研究区域,选取高程、坡度、坡向、地类、土壤、降水、气温、积温8个评价因子,来构建评价指标体系。运用专家打分法,确定各评价指标权重。基于GIS技术,采用加权叠加法对评价因子进行综合性分析,将茶叶种植适宜性结果分为4个等级。结果表明:最适宜、较适宜、较不适宜、不适宜茶树种植的面积分别为1680.04hm^2,23970.88hm^2,101044.88hm^2,46504.2hm^2,分别占评价面积的0.97%,13.84%,58.34%,26.85%。最后,为赤壁市茶叶种植选址提出适当的建议,对充分发挥赤壁市茶叶种植资源优势具有指导作用。

The evaluation of tea planting suitability is the primary task of selecting suitable tea planting sites. Taking Chibi City as the research area, eight evaluation factors, such as elevation, slope, slope direction, land type, soil, precipitation, air temperature and accumulated temperature, are selected to construct the evaluation index system. The expert scoring method is used to determine the weight of each evaluation index. Based on GIS technology, the evaluation factors were comprehensively analyzed by weighted superposition method, and the results of tea planting suitability were divided into four grades. The results showed that the most suitable, less suitable and unsuitable areas for tea planting were 1680.04hm^2, 23970.88hm^2,101044.88hm^2,46504.2hm^2, respectively, accounting for 0.97%, 13.84%, 58.34% and 26.85% of the evaluated area. Finally, the paper puts forward some appropriate suggestions for the location of tea planting in Chibi City, which plays a guiding role in giving full play to the advantages of tea planting resources of the city.