摘要
【目的】科学合理地利用农田防护林资源,指导农田防护林体系的建设。【方法】以新疆准噶尔盆地农田防护林22 a生箭杆杨为研究对象,运用树干解析法对其树高、胸径、材积等生长特性进行调查研究。【结果】建立箭杆杨的树高、胸径的logistic模型、Richard模型、H=aAr等5种生长模型。【结论】准噶尔盆地箭杆杨农田防护林的树高、胸径的生长模型均为Richards模型拟合最优,其防护初始成熟年限为15 a,数量成熟年龄约为25 a。
In order to utilize farmland shelter forest resources scientifically and rationally, and guide the construction of the farmland shelterbelt network, the 22 years old Populus nigra cv. Afghanica were used to study its whole process of growth, which were planted in the Junggar Basin in Xinjiang as the shelter forest. Tree height~ DBH and tree volume growth were measured to study the Populus nigra cv. Afghanica growth characteristic, while five kinds of models that included poplar shaft height and diameter of the logistic model, Richard model and H = aAr model were established and compared. The results showed that ： in Junggar Basin, the poplar shelterbelt initial maturity period is 15 a, the age of quantitative maturity is about 25 a; for its height and DBH growth models, Richards model fitting is excellent.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2010年第11期2195-2199,共5页
Xinjiang Agricultural Sciences
基金
国家“十一五”科技支撑计划(2007BAC17B00)
关键词
树干解析
生长特性
生长模型
数量成熟龄
trunk analysis
growth characteristic
growth models
age of quantitative maturity
