闽北湿地松人工林立地质量精确评价

Site Quality Accurate Evaluation of Pinus elliottii Plantation in Minbei

以湿地松为研究对象,建立了以立地质量等级为虚拟变量、年龄为自变量湿地松地位指数模型,利用样地数据及智能算法得到模型参数,最后根据标准差法编表思路,通过建立湿地松优势树高标准差模型,编制了湿地松地位指数表。考虑到湿地松地位指数表只适用于有林地,文章应用数量化理论Ⅰ编制了湿地松数量化地位指数表,为精确地经营湿地松提供技术指导,也为其它树种建立地位(级)指数模型提供理论参考。

Choosing Pinus elliottii as the research object,the paper established on the site quality rating dummy variables and age as the independent variables of slash pine status index model,using the sample data and intelligent algorithm to get the parameters of the model,based on the standard deviation method preparation ideas,through the establishment of Pinus elliottii dominant height standard deviation model for wetland site index table loose.Considering the status of Pinus elliottii index table is only applicable to the land,the application of quantitative theory I the quantitative site index table for Pinus elliottii,precise management of Pinus elliottii to provide technical guidance,establishing status for other species(class)and providing a theoretical reference index model.