鄂西山区日本落叶松林相容性单株生物量模型研究  

Compatible Individual-tree Biomass Model of Larix kaempferi Plantation in Western Hubei Mountainous Area

作　　者：孙拥康[1] 汤景明[1] 臧颢 SUN Yong-kang;TANG Jing-ming;ZANG Hao(Hubei Academy of Forestry,Wuhan Hubei 430075,P.R.China;Jiangxi Agricultural University,Nanchang Jiangxi 330045,P.R.China)

机构地区：[1]湖北省林业科学研究院,湖北武汉430075 [2]江西农业大学,江西南昌330045

出　　处：《西部林业科学》2019年第5期125-130,共6页Journal of West China Forestry Science

基　　金：湖北省林业科技支撑计划项目“鄂西山区日本落叶松人工林高效栽培技术研发(2015BBA212)”;国家自然科学基金项目“气候和竞争对亚热带杉木人工林单木生长的交互作用(31700563)”

摘　　要：在收集的36块标准地资料和建立的单株生物量模型基础上,基于非线性度量误差模型方法,对鄂西山区日本落叶松林相容性单株生物量模型进行研究。结果表明,鄂西山区日本落叶松单株生物量平均分配规律呈树干生物量>树根生物量>树冠生物量;所构建的日本落叶松相容性单株生物量模型,确定系数和预估精度均在0.90以上,模型拟合效果较好,预估精度较高,较好地解决了传统模型不相容问题;各组分生物量占总生物量的比例随直径的增大呈不同变化特点,客观反映了林木生物量随直径生长的变化规律。Based on the data from36 standard plotSand the established individual-tree biomasSmodel,the compatible individual-tree biomasSmodel of Larix kaempferi plantation in western Hubei MountainouSarea waSstudied based on the nonlinear measurement error model.The resultSshowed that the average distribution rule of individual biomasSwaSin a rank of trunk biomass>root biomass>crown biomass;The established compatible individual-tree biomasSmodel of L.kaempferi plantation waSabove 0.90 in termSof determination coefficient and itSprediction accuracy.The model fitting effect waSwell and the prediction accuracy waShigh,and it could solve the incompatibility of other traditional models.The biomasSproportion of different componentSin the total biomasSshowed different characteristicSwith the increase of diameter and it can provide theoretical basiSfor the biomasSestimation of L.kaempferi plantation in the study area.

关 键 词：鄂西山区 日本落叶松 非线性度量误差模型 相容性单株生物量模型 

分 类 号：S791.259[农业科学—林木遗传育种]