Carbon Content in Shrub-tree Species of the Caatinga

Lana, Mayara Dalla; Ferreira, Rinaldo Luiz Caraciolo; Silva, José Antônio Aleixo da; Duda, Gustavo Pereira; Cespedes, German Hugo Gutierrez

doi:10.1590/2179-8087.061717

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Original Article, Forest Management • Floresta Ambient. 26 (2) • 2019 • https://doi.org/10.1590/2179-8087.061717 copy

Carbon Content in Shrub-tree Species of the Caatinga

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The aim of this study was to determine the carbon content (C) in stem, leaves and thin and thick branches of eight species in an area of Caatinga, municipality of Floresta, Pernambuco, Brazil. To do so, dry biomass samples of at least 15 trees distributed into five diametric classes collected from the study area and fractionated in laboratory were used for each of the eight evaluated species. Carbon content was determined using CHNS/O elemental analyzer. Average carbon content of 46.4% is recommended for Anadenanthera colubrina, Aspidosperma pyrifolium, Bauhinia cheilantha, Cnidoscolus quercifolius, Mimosa ophthalmocentra and Mimosa tenuiflora, without need for specific values for each compartment. Croton heliotropiifolius and Poincianella bracteosa require distinct values per compartment for individuals in order to avoid trends in carbon stock estimates.

Keywords:
climate change; carbon projects; sustainable management

Species	Number of arboreal individuals per CBH class (cm)
Species	I	II	III	IV	V	Total
A. colubrina	3	3	3	3	3	15
A. pyrifolium	3	3	4	4	1	15
B. cheilantha	18	-	-	-	-	18
C. quercifolius	3	3	3	3	3	15
C. heliotropiifolius	18	-	-	-	-	18
M. ophthalmocentra	3	3	3	4	2	15
M. tenuiflora	3	3	3	3	3	15
P. bracteosa	3	3	3	3	3	15

Species	Stem	Branches		Leaves	TOTAL
Species	Stem	Thick	Thin	Leaves	TOTAL
A. colubrina	15	13	15	15	58
A. pyrifolium	15	14	15	15	59
B. cheilantha	18	4	18	18	58
C. quercifolius	14	13	13	15	55
C. heliotropiifolius	18	9	17	18	62
M. ophthalmocentra	15	12	14	15	56
M. tenuiflora	15	11	14	15	55
P. bracteosa	14	13	13	15	55
TOTAL	124	89	119	126	458

Species	Stem				Thick branches				Thin branches				Leaves
Species		min.	max.	V.C.		min.	max.	V.C.		min.	max.	V.C.		min.	max.	V.C.
A. colubrina	46.6	44.1	49.4	4.1	45.8	39.9	52.7	6.1	47.5	43.6	53.5	6.6	49.1	39.2	56.5	8.7
A. pyrifolium	47.4	42.1	53.2	7.0	44.8	36.8	49.0	8.5	45.9	42.1	54.0	7.3	47.1	36.8	57.3	11.5
B. cheilantha	46.1	40.7	51.2	6.0	44.6	40.7	49.2	7.9	47.5	42.9	48.6	3.3	44.7	38.6	51.4	7.3
C. quercifolius	46.8	42.7	54.2	6.4	44.4	35.5	53.7	12.4	45.2	39.9	48.8	5.3	44.3	40.3	49.6	8.9
C. heliotropiifolius	48.5	40.9	57.6	8.0	47.1	39.1	53.0	9.2	45.8	37.2	52.6	8.9	43.0	34.2	54.9	14.0
M. ophthalmocentra	47.5	42.9	54.4	7.8	45.2	39.3	52.8	9.5	47.8	42.2	55.6	6.7	45.5	38.2	52.8	10.2
M. tenuiflora	47.4	34.4	56.5	12.3	43.7	36.2	51.3	13.7	47.8	40.8	53.3	3.0	46.6	35.5	52.7	12.7
P. bracteosa	44.8	42.7	48.1	3.6	40.8	35.5	46.5	7.2	46.0	43.0	52.5	4.9	48.1	37.0	51.0	8.5

EFFECT OF SPECIES ON COMPARTMENTS
Compartments	F-value	F-critical (5%)	F-critical (1%)		p-value
Stem	1.551^ns	2.089	2.796		0.1571
Thick branches	2.126*	2.125	2.868		0.0499
Thin branches	0.482^ns	2.087	2.793		0.8459
Leaves	2.728 ^* * = significant at 5% probability level (0.01 ≤ p-value < 0.05) and ns = not statistical significant (p -value ≥ 0.05).	2.087	2.793		0.0116
EFFECT OF COMPARTMENTS ON SPECIES
Species	F-value	F-critical (5%)	F-critical (1%)	p-value
A. colubrina	2.659^ns	2.776	4.167	0.0574
A. pyrifolium	1.226^ns	2.766	4.145	0.3086
B. cheilantha	2.008^ns	2.776	4.167	0.1237
C. quercifolius	1.358^ns	2.786	4.191	0.2665
C. heliotropiifolius	4.261**	2.764	4.138	0.0086
M. ophthalmocentra	0.946^ns	2.783	4.182	0.4253
M. tenuiflora	1.082^ns	2.786	4.191	0.3649
P. bracteosa	15.126**	2.786	4.191	< 0.0001

Species	Stem*	Branches		Leaves ^* * Means followed by the same capital letter in the column and lower case letter in the row do not differ significantly by the the Tukey-Kramer test at 5% probability level.
Species	Stem*	Thick *	Thin*
A. colubrina	46.6 Aa	45.9 ABa	47.5 Aa	49.0 A a
C. heliotropiifolius	48.5 Aa	47.1 A a b	45.8 Aab	43.0 B b
P. bracteosa	44.8 A b	40.8 B c	46.0 Aab	48.1 A Ba

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

Acompanhe os números deste periódico no seu leitor de RSS

[1] Mayara Dalla LanaCurso Técnico em Meio Ambiente, Instituto Federal de Ciência e Tecnologia de Pernambuco – IFPE, Rua Padre Agobar Valença, s/n, Severiano Morais Filho, CEP 55299-390, Garanhuns, PE, Brasil e-mail: mayara.dallalana@garanhuns.ifpe.edu.br