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在富裕县富路镇经12a定位研究,建立起具有五种经营模式的小黑杨速生丰产林;设置密度、整地与不同栽植深度、苗木规格、施肥等项试验林13.3hm~2。通过分析证明经济效益较高,并提出二种合理的经营模式,采用逐步回归方法筛选出影响小黑杨生长的主要制约因子;采用定量方法确定出改善制约因子实现速生丰产的有效技术措施。
In Fuyu County, Fulu County, the location of the study by the 12a, established with five business models of Populus fast-growing plantation; set density, site preparation and planting depth, seedling size, fertilization and other forest test 13.3hm ~ 2. Through the analysis, it is proved that the economic benefit is high, and two reasonable business models are proposed. The main factors that affect the growth of Populus davidii are selected by the stepwise regression method. The effective measures to improve the control factors and achieve fast growing are determined by the quantitative method.