Analysis on the Differences of Tree Growth with Different Site Conditions Based on Sub-compartments and Tree Height Growth Model

doi:10.13466/j.cnki.lyzygl.2017.02.009

Abstract

Abstract:

Tree growth equations which were models for describing each of trees growth factors changing with ages have been used widely for evaluating tree height,volume,and so on. This study selected 7 typical tree growth equations to simulate tree growth process under different forestland sites for Pinus tabilaeformis and Robinia pseudoacacia plantations,respectively,which were based on forest inventory data and sub-compartments. Results showed that all 7 equations could simulate tree growth process,in which Korf and Logistic equations were better than others. Parameters a,b and c were effected significantly by forestland site. In addition,these equations were tested and could be used for predicting tree growth accurately. Then,both trees growth of Pinus tabilaeformis and Robinia pseudoacacia were simulated and it implied that Pinus tabilaeformis grew well under schattenseite and Robinia pseudoacacia grew well in this place with no sunny slope. For the western Liaoning (north) area of site quality evaluation and plantation of reasonable management,this provides a scientific reference.

Key words: western (north) Liaoning, Pinus tabulieformis plantation, Robinia pseudoacacia plantation, tree height growth models

CLC Number:

S758

FU Han, WEI Yawei, YIN You, QIN Shengjin, ZHOU Yongbin. Analysis on the Differences of Tree Growth with Different Site Conditions Based on Sub-compartments and Tree Height Growth Model[J]. FOREST RESOURCES WANAGEMENT, 2017, (2): 46-52.

Figures/Tables 8

Tab.1

Tree height growth model and parameters

编号	生长方程	参数	备注
1	H=a $1 - e - bA c$	a为H的最终值即上渐进值,b与生长速度有关,c为绝对曲线性状及拐点, a,b,c均大于0	Richards(1959)
2	H= $a 1 + b e - cA$	a为H的最终值即上渐进值,b与生长速度有关,c为形状参数,a,b,c均大于0	Logistic(1838)
3	H=a $e - b e - cA$	a为H的最终值即上渐进值,b与生长速度有关,c为形状参数,a,b,c均大于0	Gompertz(1825)
4	H=a $e - b A - c$	a为H的最终值即上渐进值,b与生长速度有关,c为形状参数,a,b,c均大于0	Korf(1939)
5	H=a $1 - b e - cA$	a为H的最终值即上渐进值,b与生长速度有关,c为形状参数,a,b,c均大于0	Mitscherlich(1919)
6	H= $a 1 + b A c$	a为H的最终值即上渐进值,b与生长速度有关,c为形状参数,a,b,c均大于0	Hossfeld(1822)
7	H=a $e - b A$	a为H的最终值即上渐进值,b为形状参数,a,b均大于0	Schumacher(1939)

Tab.1

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Tab.3

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树种	立地类型	编号	方程	参数			相关系数 R
树种	立地类型	编号	方程	a	b	c	相关系数 R
油松	阳坡半阳坡薄层土	a	Korf	7.68	71.16	1.51	0.79
	阳坡半阳坡厚层土	b	Korf	718.54	7.58	0.13	0.74
	阳坡半阳坡中层土	j	Korf	10.60	11.95	0.82	0.71
	阴坡半阴坡中层土	f	Korf	9.53	23.38	1.09	0.68
	脊部土层	g	Logistic	5.61	14.80	0.16	0.73
	平地棕壤	h	Korf	100.64	5.39	0.18	0.69
	侵蚀沟	i	Korf	18.20	7.90	0.55	0.75
刺槐	阳坡半阳坡薄层土	a	Korf	11.51	7.84	0.91	0.80
	阳坡半阳坡厚层土	b	Logistic	10.79	4.03	0.11	0.82
	阴坡半阴坡薄层土	d	Korf	10.45	7.98	0.96	0.77
	阴坡半阴坡厚层土	e	Logistic	8.64	7.07	0.21	0.79
	阴坡半阴坡中层土	f	Logistic	9.49	4.40	0.14	0.80
	脊部土层	g	Korf	9.76	15.41	1.26	0.94
	平地棕壤	h	Korf	8.75	3.89	0.78	0.71
	侵蚀沟	i	Logistic	11.20	9.93	0.20	0.89

树种	树高在不同立地类型下的大小顺序
油松	侵蚀沟>阴坡半阴坡中层土>平地棕壤>阳坡半阳坡厚层土>阳坡半阳坡薄层土>阳坡半阳坡中层土>脊部土层
刺槐	侵蚀沟>阳坡半阳坡厚层土>阴坡半阴坡中层土>阴坡半阴坡厚层土>阳坡半阳坡薄层土>脊部土层>阴坡半阴坡薄层土>平地棕壤