遂宁地区香椿人工林数量化立地指数的编制及应用

Formulation and Application of Site Indexes of Toona sinensis Plantations in Suining Region

通过对遂宁地区香椿(Toona sinensis Roem)人工林标准地的调查,分析各标准地优势木平均树高与立地条件(土壤质地、地下水位、排水状况、夹层、p H值、土壤母质、紧实度等因子)之间的关系,最终编制出以土壤质地、地下水位、排水状况、夹层4因子为主的数量化立地指数表,对遂宁浅丘农区相似区域香椿造林经营具有一定的指导意义。

In this paper, an investigation was made on the Toona sinensis plantation in Suining region, and analysis was made of the relationship between average height of dominant trees and site conditions （ soil texture, underground water level, drainage, interbed ded stratum, pH value soil parent materials, compaction, etc） in different sample plots. Finally a quantitative site index table was drawn up, including the four factors of the soil texture, ground water level, drainage condition and double-layered stratum. This table would be a good guidance for afforestation and forest management of Toona sinensis in this area.