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机构地区:[1]山东省林业科学研究所,山东济南250014 [2]山东省成武县林业局,山东成武273600
出 处:《林业科学研究》2001年第5期574-577,共4页Forest Research
基 金:山东省重点攻关项目"农田林网更新改造技术的研究"的部分内容
摘 要:Several mathematical models were built based on the data of representative plot, sample trees and analytic trees of poplar,which is the main tree species of farm shelter belt.Using mathematical method,and according to the synthetic analysis from different aspects i.e.protection maturity, quantitative maturity and economic maturity, the suitable regeneration age was determined as 14~20 years old.This can be used as a reference for the management of farm shelter belt .Several mathematical models were built based on the data of representative plot, sample trees and analytic trees of poplar,which is the main tree species of farm shelter belt.Using mathematical method,and according to the synthetic analysis from different aspects i.e.protection maturity, quantitative maturity and economic maturity, the suitable regeneration age was determined as 14~20 years old.This can be used as a reference for the management of farm shelter belt .
分 类 号:S727.24[农业科学—林木遗传育种] S792.11[农业科学—林学]
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