Data/hora: 09/06/2024 15:37:05

Provedor de dados: 	17	
País: 	United Kingdom	
Título: 	A New General Allometric Biomass Model	
Autores: 	Wei Sheng Zeng; Shou Zheng Tang.	
Data: 	2011-12-20	
Ano: 	2011	
Palavras-chave: 	Ecology.	
Resumo: 	To implement monitoring and assessment of national forest biomass, it is becoming the trend to develop generalized single-tree biomass models suitable for large scale forest biomass estimation. Considering that the theoretical biomass allometric model developed by West et al. [1,2] was statistically different from the empirical one, the two parameters in the most commonly used biomass equation M=aDb were analyzed in this paper. Firstly, based on the knowledge of geometry, the theoretical value of parameter b was deduced, i.e., b=7/3(~2.33), and the comparison with many empirical studies conducted throughout the globe indicated that the theoretical parameter could describe soundly the average allometric relationship between aboveground biomass M and D (diameter on breast height). Secondly, using five datasets of aboveground biomass which consisted of 1441 M-D pairs of sample trees, the new general biomass allometric model was validated. Finally, the relationship between parameter a and wood density p was analyzed, and the linear regression was developed. The new model, which is not only simple but also species-specific, offers a feasible approach on establishment of generalized biomass models for regional and national forest biomass estimation.	
Tipo: 	Manuscript	
Identificador: 	http://precedings.nature.com/documents/6704/version/2

oai:nature.com:10.1038/npre.2011.6704.2

http://dx.doi.org/10.1038/npre.2011.6704.2	
Fonte: 	Nature Precedings	
Fonte: 	Creative Commons Attribution 3.0 License