ALLOMETRIC MODELS FOR ESTIMATING ABOVEGROUND BIOMASS AND BIOMASS ALLOCATION OF CAPIXINGUI TREES (Croton floribundus Spreng.) IN AN AGRISILVICULTURAL SYSTEM

被引：1
|
作者：
Franceschi Nicodemo, Maria Luiza [1 ]
Muller, Marcelo Dias [2 ]
Carpanezzi, Antnio Aparecido [3 ]
Porfirio-da-Silva, Vanderley [3 ]
机构：
[1] Empresa Brasileira Pesquisa Agr, Ctr Pesquisa Pecuaria Sudeste, Sao Carlos, SP, Brazil
[2] Empresa Brasileira Pesquisa Agr, Ctr Nacl Pesquisa Gado de Leite, Coronel Pacheco, MG, Brazil
[3] Empresa Brasileira Pesquisa Agr, CNPF, Embrapa Florestas, Colombo, PR, Brazil
来源：
REVISTA ARVORE | 2016年 / 40卷 / 02期
关键词：
Agroforestry systems; Integrated production systems; Modeling; CARBON STOCKS; EQUATIONS;
D O I：
10.1590/0100-67622016000200010
中图分类号：
S7 [林业];
学科分类号：
0829 ; 0907 ;
摘要：
The objective of this study was to select allometric models to estimate total and pooled aboveground biomass of 4.5-year-old capixingui trees established in an agrisilvicultural system. Aboveground biomass distribution of capixingui was also evaluated. Single-(diameter at breast height [DBH] or crown diameter or stem diameter as the independent variable) and double-entry (DBH or crown diameter or stem diameter and total height as independent variables) models were studied. The estimated total biomass was 17.3 t.ha(-1), corresponding to 86.6 kg per tree. All models showed a good fit to the data (R-ad(2) > 0.85) for bole, branches, and total biomass. DBH-based models presented the best residual distribution. Model lnW = b0 + b1*lnDBH can be recommended for aboveground biomass estimation. Lower coefficients were obtained for leaves (R-ad(2) > 82%). Biomass distribution followed the order: bole>branches>leaves. Bole biomass percentage decreased with increasing DBH of the trees, whereas branch biomass increased.
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收藏
页码：279 / 288
页数：10
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