摘要
用江苏省杨树解析木编制了杨树标准树高曲线模型,该模型引入了适宜的林分控制因子(树龄和地位指数),是具有统计学意义的树高曲线模型。经检验,模型有较好的精度,适用于江苏省的杨树树高生长模型。该研究可为江苏省日益发展的杨树人工林的经营管理提供生长预测,并为杨树生产力测定和预估提供数学模型与方法。
In order to forecast accurately height of each diameter class of poplar in Jiangsu Province, the quadric parabola function with five parameters was established, In this model , two control elements which were site index and stand age were introduced , By verified, this equation may be applied to estimate the growth of poplar in Jiangsu Province, And the model with 5 parameters might provide a new method in artificial forest management.
出处
《林业科技开发》
2005年第5期31-34,共4页
China Forestry Science and Technology
基金
江苏省科技厅科技发展计划项目"杨树产业信息化技术示范推广"(编号:2004省435)
