高县茶叶种植区土地适宜性评价与分区研究

Land Suitability Evaluation and Zoning Study in Gaoxian Tea Plantation Area

土地适应性评价是土地利用规划编制和科学决策的基本依据,是为确定高县地区土地是否适宜茶叶种植及其适宜程度的重要方法和途径。高县茶叶种植历史悠久且茶叶对土壤有特殊要求,通过运用ARCGIS软件对研究区内影响茶叶种植的因子进行分析。采用层次分析法和德尔菲法,以4分制标准对评价因子进行打分,进行单因子分析。之后综合分析得出各因子的权重,进行综合因子分析。对高县县域内土地进行茶叶土地适宜性评价。其评价结果分为高度适宜区、一般适宜区、勉强适宜区、不适宜区四类。其高度适宜区面积约2.2610万公顷,占总面积的17.08%。一般适宜区面积约3.2829万公顷,占总面积的24.80%,勉强适宜区约1.7593万公顷,占13.29%,不适宜种植区约5.9344万公顷,占44.83%。通过对高县县域内的土地进行茶叶种植的适宜性评价,有助于推动高县茶叶等特色产业高质量发展,进而为未来高县茶叶作为特色产业发展提供一定的基础。

Land adaptability evaluation is the basic basis of land use planning and scientific decision~making,and is an im⁃portant method and way to determine whether the land in Gaoxian area is suitable for tea planting and its suitability.Gaoxian tea plantation has a long history and tea leaves have special requirements on soil.The factors affecting tea plantation in the study area were analyzed by using ARCGIS software.Using analytic hierarchy process(AHP)and Delphi method,the evalua⁃tion factors were scored on a 4~point scale and the single factor analysis was carried out.Then,the weight of each factor is ob⁃tained through comprehensive analysis,and the comprehensive factor analysis is carried out.Tea land suitability evaluation was carried out for the land in Gaoxian county.The evaluation results can be divided into four categories:highly suitable area,general suitable area,reluctant suitable area and unsuitable area.Its highly suitable area covers about 22,610 hectares,ac⁃counting for 17.08%of the total area.The general area of suitable area is about 32,829 hectares,accounting for 24.80%of the total area;the area of barely suitable area is about 17,593 hectares,accounting for 13.29%;and the area of unsuitable planting is about 59,344 hectares,accounting for 44.83%.By evaluating the suitability of tea planting in the land of Gaoxian County,it is helpful to promote the high~quality development of Gaoxian tea and other characteristic industries,so as to provide a cer⁃tain foundation for the development of Gaoxian tea as characteristic industry in the future.