摘要
以东北林业大学帽儿山实验林场樟子松人工林为研究对象,采用树干解析、枝解析的方法,分别于2007年和2008年在老山施业区选择不同年龄、不同立地和不同密度的樟子松人工林有代表性的林分设置固定标准地15块(其中,2007年设置7块,2008年设置8块),共获取解析样木53株,实测了2298个一级枝活枝条变量因子(包括总着枝深度(DINC)、方位角(φ)、着枝角度(θ)、基径(BD)、枝长(BL)、弦长(BCL)、弓高(BAH))数据资料。基于理论或经验生长方程,建立了樟子松人工林树冠结构一级枝条基径静态模型,包括平均基径模型和最大最小一级枝条基径模型,并对模型进行了检验,结果表明模型预估效果良好。
Based on the stem and branch analysis method,15 sample plots and 53 sample trees were selected in the Mongolian pine plantation of Maoershan farm,Northeast forestry university with different ages,sites and densities in 2007 and 2008.2298 variables for the living branch,such as depth into crown,azimuth,branch angle,diameter,length,chord and bow height were measured.The branch diameter model in crown structure,including mean,maximum and minimize branch diameter models,were established based on theory and experience growth model and the prediction effect is good after the model validation.
出处
《林业科技情报》
2009年第1期24-26,共3页
Forestry Science and Technology Information
基金
东北林业大学本科生创新项目(2008031)
关键词
樟子松人工林
一级枝条
基径模型
最大基径
最小基径
Mongolian Pine plantation
branch
diameter model
maximum diameter
minimize diameter
