摘要
利用马尾松人工林优势木树干解析材料,选择合适的生长方程构建了能把地位指数写成年龄和优势高显式表达式的多形地位指数曲线模型,并用遗传算法对其参数作优化求解.误差分析表明:所建立的多形地位指数曲线模型误差小,精度高,便于推广应用.
By using the data from dominant tree stem analysis and selecting the proper growth equation of Pinus massoniana plantations, this paper built up a polymorphic site index model for the plantations, which expresses their site index as an explicit expression of tree age and dominant height, and conducted an optimization solution to their model parameters by employing genetic algorithm. The error analysis results show that this polymorphic site index model has the characteristics of high precision, convenient popularization and application.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第2期125-128,共4页
Journal of Central South University of Forestry & Technology
关键词
林学
马尾松人工林
地位指数
模型
遗传算法
forestry
Pinus rnassoniana plantations
site index
model
genetic algorithm
