昌宁县华山松数量化立地指数表编制

Compiling the quantitative site index table of Pinus armandii in Changning County, Yunnan Province

林业生产中,不仅需要评定有林地的立地质量,也需要对无林地的立地质量进行评价,以便合理利用土地,为充分发挥宜林地的生产潜力和适地适树进行造林提供科学依据。为此利用标准地主要环境因子与其地位指数间的相关关系,编制此表,作为评价森林立地质量、预测林地生产力、造林规划设计、森林经营管理等重要依据。编表方法是利用地形、土壤等主要因子为自变量,按地位指数表查定各标准地的地位指数作为因变量,采用数量化理论(Ⅰ)求解,编出标准年龄时华山松立地指数得分表。

In forestry production, need to evaluate forest site quality and the non forest site quality, in order to reasonably use the land and provide a scientific basis for giving full play to forestry land production potential and suitable trees with suitable afforestation site. Therefore using the relationship between the main environmental factors in standard site and other index to compile this table, as an important basis for the evaluation of forest site quality, prediction of forestland productivity, afforestation planning and design, forest management etc.. The method of compiling table is that using the main factors of terrain, soil etc. as independent variables, each checked standard index according to the site index table as the dependent variables, using quantitative theory （I） for solution, the site index score table of Pinus armandii at the standard age was compiled.