吉林省红松生态区划与适地适树研究

Ecological Region and Adaptable Tree for Adaptable Stand of Korean Pine in Jilin Province

采用红松基准上层高及环境因子地形、地貌、土壤、气候、地理、立地条件等为区划指标，通过建立地理信息系统和应用主成分分析、有约束条件的二维逐步聚类方法，实现了以乡（林场）为区划单元的生态区划。采用定性与定量相结合的数量化非线性模型，提出了任意地点立地质量评价及造林地选择方法。

With the regional indexes of reference crown height and environmental factors including topogra-phical, geomorphic, soil, climatic, geographic, standing condition and so on, by establishing GIS and with PCA and bidimensional step cluster with constraint condition, ecological region with the unit of town or land forest farm can be realized. With quantitative nonlinear model of definite quantity and definite quality combination, a method for quality evaluation of arbitrary stand and choosing afforestation stand was put forward.