东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2015年
5期
126-129
,共4页
蒋益%邓华锋%高东启%夏朝宗
蔣益%鄧華鋒%高東啟%夏朝宗
장익%산화봉%고동계%하조종
油松%度量误差模型%树高曲线
油鬆%度量誤差模型%樹高麯線
유송%도량오차모형%수고곡선
Pinus tabulaeformis%Measurement error model%Height-diameter curve
根据一类清查数据,以Richards方程为基础,采用度量误差模型方法,建立油松林分相容性树高曲线方程组。结果表明:模型在0.05的水平上检验显著,对树高、胸径的预估精度分别为96.12%、96.53%;胸径生长的速生期滞后于树高生长的速生期,树高生长极盛期的林龄为20~30 a,胸径生长极盛期的林龄为30~40 a;胸径为5~10 cm时,树高生长最快,此后逐渐变缓;树高曲线与林分胸径、树高生长过程曲线之间具有相容性和一致性。
根據一類清查數據,以Richards方程為基礎,採用度量誤差模型方法,建立油鬆林分相容性樹高麯線方程組。結果錶明:模型在0.05的水平上檢驗顯著,對樹高、胸徑的預估精度分彆為96.12%、96.53%;胸徑生長的速生期滯後于樹高生長的速生期,樹高生長極盛期的林齡為20~30 a,胸徑生長極盛期的林齡為30~40 a;胸徑為5~10 cm時,樹高生長最快,此後逐漸變緩;樹高麯線與林分胸徑、樹高生長過程麯線之間具有相容性和一緻性。
근거일류청사수거,이Richards방정위기출,채용도량오차모형방법,건립유송림분상용성수고곡선방정조。결과표명:모형재0.05적수평상검험현저,대수고、흉경적예고정도분별위96.12%、96.53%;흉경생장적속생기체후우수고생장적속생기,수고생장겁성기적림령위20~30 a,흉경생장겁성기적림령위30~40 a;흉경위5~10 cm시,수고생장최쾌,차후축점변완;수고곡선여림분흉경、수고생장과정곡선지간구유상용성화일치성。
According to forest continuous inventory data of Chinese pine , based on Richards equations , we used modeling meth-ods with measurement error to construct compatible system of equations for height -diameter curve of the stands .All models were significant at 0.05 level, and the accuracies were95 .73%and96 .44%for estimating average height and average DBH, respectively.With the development of Pinus tabulaeformis stand age, rapid growing period of average DBH comes af-ter that of average height with that of average DBH at 30-40 years and that of average height at 20-30 years.The growth of average tree height was fast , while the DBH was about 5-10 cm, then decreased gradually .Tree height -diameter curve , average diameter-age curve and average height-age curve could keep compatible and consistent .