Evaluation on the suitability of land resource to tea in a small scalewas performed with mathematical methods such as successive regressionand fuzzy complex judgement,consulting the evaluation system of a Frame-work For Land Evaluation issued by FAO.

• 参照联合国粮农组织(FAO)颁布的《土地评价纲要》(A framework for land evalua-tion)的评价系统,应用回归分析和模糊综合评判等数学方法,对小区域(紫阳县尚坝乡)土地资源进行宜茶性评价。