estimation of aerial biomass of lychnophora ericoides (mart.)

Clicks: 172
ID: 208695
2007
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Abstract
For sustainable use of native plant species, knowledge of the amount of harvestable biomass is necessary. This study presents data on allometric relationships of Lychnophora ericoides Mart. (Asteraceae), an extractive resource in the Cerrado region of Brazil. On the Fazenda Água Limpa (15º 45'S, 47º 57'W) of the Universidade de Brasilia, 38 individuals of this species were measured in the field, the parts above ground were harvested, separated into components and oven dried. The best regression equations to estimate biomass were geometric and the best fit was between total height and total biomass (r² = 0.923). The economically useful portions, the leaves and branches accounted for approximately 20% of total above ground dry weight, but when used as the dependent variable, the strength of the relationship decreased (r² = 0.694). The relationship between branch diameter and leaf biomass was similar to that between height and leaf dry weight (r² = 0.600). The relation between the number of leaves and their biomass was linear but weak. The development of these equations is the first step towards the implementation of plans for sustainable use of this species.
Para o uso sustentável das espécies vegetais nativas o conhecimento da quantidade de biomassa disponível é necessário. O objetivo deste estudo foi verificar as relações alométricas para Lychnophora ericoides Mart., um recurso extrativista importante na região dos Cerrados. Na Fazenda Água Limpa da Universidade de Brasília, 38 indivíduos desta espécie foram medidas no campo, a parte aérea foi cortada, separada em componentes de folhas, galhos e tronco e estas componentes foram secas e pesadas. As melhores equações de regressão para estimar a biomassa foram geométricas e o melhor ajuste foi entre altura total e biomassa total (r² = 0,923). As partes economicamente exploradas, as folhas e ramos, contribuíram com aproximadamente 20% do peso seco total desta espécie, mas a equação para estimar a biomassa destas componentes teve um ajuste mais fraco (r² = 0,694). A relação entre o diâmetro do ramo e a biomassa das folhas (r² = 0,600) foi semelhante à relação entre altura e biomassa foliar. O desenvolvimento destas equações é o primeiro passo para a implementação de planos de manejo sustentável para esta espécie.
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andrade2007brazilianestimation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Brunno Santana de Andrade;John Du Vall Hay
Journal current drug delivery
Year 2007
DOI
10.1590/S1516-89132007000400014
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400014
Keywords
sustainable development allometric relationships

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