小兴安岭天然林不同树种的树高曲线模型  

Tree Height Curve Models of Different Tree Species in the of Xiaoxing'an Mountain

作　　者：冯国红[1] 朱玉杰[1] 王景峰[1] 

机构地区：[1]森林持续经营与环境微生物工程黑龙江省重点实验室(东北林业大学),哈尔滨150040

出　　处：《东北林业大学学报》2016年第12期6-9,共4页Journal of Northeast Forestry University

基　　金：林业公益性行业科研专项(201204509);黑龙江省青年科学基金项目(QC2014C010)

摘　　要：选用10种树高曲线模型作为候选模型,以决定系数(R^2)、残差平方和(S_(se))和均方差(M_(se))作为模型优劣的评价指标,对小兴安岭天然林中的云杉(Picea asperata)、红松(Pinus koraiensis)、水曲柳(Fraxinus mandschurica)、椴树(Tilia tuan)4种树种的树高曲线模型进行优选。结果表明:云杉、红松和椴树的最优模型均为Logistic模型,水曲柳的最优模型为抛物线模型;云杉和红松两种针叶树种,最优模型的优势不明显,水曲柳和椴树两种阔叶树种最优模型的优势较明显;比较R^2的大小,得出较适合小兴安岭云杉和红松两种针叶树种的树高曲线模型(R^2>0.8),对小兴安岭阔叶树种的适用程度不具有普遍性,对椴树的适用性好(R^2最大达0.94),对水曲柳的适用性较差(R^2<0.8)。对水曲柳的树高进行分段研究得出:水曲柳在树高低于9 m时,树高曲线模型较适宜(R^2>0.8),其中抛物线模型为最优模型;树高较高时,没有适用的树高曲线模型。We selected 10 tree height curve models as a candidate model and uses R2 xSse and M as the merits of the evaluation index to study the tree height curve model of spruce, pine, ash and basswood in the natural forests of Xiaoxing＇ an Mountain. The optimal model of spruce, pine and basswood are the Logistic Model, and for ash is the Parabolic Model. The advantages of the optimal model of conifer species of spruce and pine are not obvious, but the advantages of optimal model of broad-leaved species of ash and basswood are obvious. Compared with R2, tree height curve model is more suitable for the coniferous species of spruce and pine in Xiaoxing＇ an Mountain （R2〉0.8）, the applicability broad-leaved species does not have universal applicability of basswood good （ R2 Maximum of 0.94）, and the applicability of ash is poor （ R2 〈 0.8 ）. When ash tree height is less than 9 m, tree height curve model is more appropriate （R2 〉0.8） , where the parabolic model is the optimal model. When tree height is higher, there is no tree height curve model for use.

关 键 词：天然林 树高曲线模型 小兴安岭 

分 类 号：S758.54[农业科学—森林经理学]