Dominant Height Growth in <i>Tectona grandis</i> Plantations in Mato Grosso, Brazil

Vendruscolo, Diogo Guido Streck; Drescher, Ronaldo; Carvalho, Samuel de Pádua Chaves e; Medeiros, Reginaldo Antonio; Môra, Rômulo; Soares, Alvaro Augusto Vieira

doi:10.1590/2179-8087.070317

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ORIGINAL ARTICLE, FOREST MANAGEMENT • Floresta Ambient. 26 (4) • 2019 • https://doi.org/10.1590/2179-8087.070317 copy

Dominant Height Growth in Tectona grandis Plantations in Mato Grosso, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Tectona grandis (teak) plantations have gained increased interest in recent decades in Brazil, bringing about the need for acquiring information regarding the growth and productive potential. The present work aims to evaluate the growth of dominant height in teak at various locations in the state of Mato Grosso, midwest Brazil. For this purpose, six stands were evaluated in distinct municipalities and the database was obtained from trunk analysis. Subsequently, the dominant height growth was estimated using nonlinear regression models, whose performance was evaluated, based on goodness-of-fit statistics and graphical analysis of residues. Tests for model identity were used to analyze the differences in growth rates between sites (municipalities). The studied teak stands displayed different dominant height growth trends, with differences reaching up to 37%.

Keywords:
teak; forest management; growth models; test for model identity

Site	Age	T	P	Alt	Sp	Silv. Treatments	Thinning	TA
Cáceres	17	24-26	1,600-1,900	118	3×2 4×2	Pruning at the ages of 9, 14 e 22 months	No thinning	16
Cáceres	17	24-26	1,600-1,900	118	5×2 6×2	Pruning at the ages of 9, 14 e 22 months	No thinning	16
Indiavaí	33	24-26	1,600-1,900	185	2×2	Periodic pruning to keep the stem free of branches	At the ages of 6, 11, 14, 20, 23 and 26	12
Figueirópolis d’Oeste	6	24-26	1,600-1,900	370	4×2	Semestral pruning	No thinning	12
Nova Maringá	16	24-26	1,900-2,200	375	3×3	Fertilization in the 1st e 2nd year (NPK) and yearly prunings	At the ages of 5, 8 e 12	10
Santo Antônio do Leverger	9	24-26	1,300-1,600	140	3×2	Periodic pruning	No thinning	9
Alta Floresta	10	26-28	2,800-3,100	300	3×2	Periodic prunings and the elimination of defectitve trees	At the age of 6	10

Site	Age	Variable	$\bar{X}$	S	Min	Max
Cáceres	17	DBH	21.7	2.1	18.0	25.0
Cáceres	17	DH	19.7	0.9	17.9	21.1
Indiavaí	33	DBH	44.2	5.4	31.4	52.0
Indiavaí	33	DH	25.3	1.4	21.9	27.0
Figueirópolis d’Oeste	6	DBH	11.3	0.9	10.1	13.1
Figueirópolis d’Oeste	6	DH	11.8	0.4	11.1	12.6
Nova Maringá	16	DBH	29.7	2.6	26.5	34.8
Nova Maringá	16	DH	20.6	1.3	18.9	22.5
Santo Antônio do Leverger	9	DBH	15.2	4.7	10.8	21.6
Santo Antônio do Leverger	9	DH	14.1	3.1	10.9	18.6
Alta Floresta	10	DBH	17.4	1.8	14.6	20.2
Alta Floresta	10	DH	16.7	1.4	13.9	19.1

Site	Model	${\hat{β}}_{0}$	${\hat{β}}_{1}$	${\hat{β}}_{2}$	$r_{y \hat{y}}$	RMSE%
Cáceres	Gompertz	19.8223^*	0.4609^*	0.2074^*	0.956	7.814
	Chapman-Richards	21.8176^*	0.1069^*	0.7252^*	0.960	7.496
	Weibull	22.6766^*	0.1973^*	0.7954^*	0.960	7.472
	Schumacher	3.0945^*	−2.9954^*	-	0.951	8.254
Indiavaí	Gompertz	24.3423^*	0.4358^*	0.1514^*	0.964	6.845
	Chapman-Richards	25.6305^*	0.0871^*	0.7167^*	0.973	5.953
	Weibull	26.2693^*	0.1743^*	0.7944^*	0.974	5.854
	Schumacher	3.2981^*	−2.8951^*	-	0.972	6.130
Figueirópolis D’Oeste	Gompertz	13.8079^*	0.2452^*	0.3490^*	0.945	5.593
	Chapman-Richards	16.5832^*	0.1321ns	0.5622^*	0.946	5.595
	Weibull	18.5028^*	0.3205^*	0.6449^*	0.946	5.591
	Schumacher	2.6964^*	−1.4768^*	-	0.940	5.868
Nova Maringá	Gompertz	20.2083^*	0.4535^*	0.2979^*	0.957	6.484
	Chapman-Richards	20.8060^*	0.2057^*	0.8515^*	0.960	6.248
	Weibull	21.1016^*	0.2683^*	0.8981^*	0.960	6.229
	Schumacher	3.1429^*	−2.2819^*	-	0.960	6.228
Santo Antônio do Leverger	Gompertz	11.8947^*	0.9581^*	0.4814^*	0.912	11.960
	Chapman-Richards	12.2575^*	0.3869^*	666^*	0.912	11.945
	Weibull	12.0153^*	0.1813^*	1.3318^*	0.912	11.945
	Schumacher	2.7518^*	−2.5664^*	-	0.911	11.978
Alta Floresta	Gompertz	17.0653^*	0.8850^*	0.4258^*	0.941	9.636
	Chapman-Richards	17.5576^*	0.3277^*	1.4741^*	0.941	9.587
	Weibull	17.3043^*	0.1807^*	1.2429^*	0.941	9.584
	Schumacher	3.0819^*	−2.6636^*	-	0.941	9.596

Sites	B	C	D	E	F
A	3.15x10^-29*	3.89x10^-05*	1.02x10^-59*	1.18x10^-31*	1.20x10^-05*
B		9.76x10^-23*	5.32x10^-20*	2.25x10^-42*	1.78x10^-03*
C			2.86x10^-33*	1.39x10^-20*	2.18x10^-12*
D				5.43x10^-62*	7.26x10^-19*
E					7.82x10^-38*

Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro Rodovia BR 465 Km 7, CEP 23897-000, Tel.: (21) 2682 0558 | (21) 3787-4033 - Seropédica - RJ - Brazil
E-mail: floram@ufrrj.br

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[1] Diogo Guido Streck Vendruscolo Proterra - Projetos, Agrimensura & Ambiental, Av. Moises Dorneles Montiel, 1.376, Centro, CEP 78665-000, Alto Boa Vista, MT, Brazil e-mail: diogoguido@hotmail.com