Development of Biomass Expansion Factor (BEF) and Estimation of Carbon Pool in Ailanthus excelsa Roxb Plantation

2014 ◽  
Vol 5 (6) ◽  
Author(s):  
Nishita Giri
Keyword(s):  
Carbon Pool ◽  
Expansion Factor ◽  
Biomass Expansion Factor ◽  
Ailanthus Excelsa

Assessment of Biomass Expansion Factor (BEF) and Root-to-shoot Ratio (R) for some Tree Species of Uttarakhand, India

2014 ◽  
Vol 37 (4) ◽  
pp. 371-377
Author(s):  
Laxmi Rawat ◽  
Pramod Kumar ◽  
Nishita Giri
Keyword(s):  
Tree Species ◽  
Tectona Grandis ◽  
Expansion Factor ◽  
Pinus Roxburghii ◽  
Biomass Expansion Factor ◽  
Shorea Robusta ◽  
Shoot Ratio ◽  
Harvesting Method ◽  
Root To Shoot Ratio ◽  
Age Series

The present study was conducted in Shorea robusta (sal), Pinus roxburghii (Chir pine), Tectona grandis (Teak) and Ailanthus excelsa (Ardu) plantations of different ages at different sites in Uttarakhand. Biomass was calculated on the basis of complete tree harvesting method (stratified mean tree technique method). Biomass Expansion Factor (BEF) and root-to-shoot ratio (R) of all these 4 tree species have been calculated and presented in this paper. Sample trees of S. robusta were of 45, 53 and 60 years of age. BEF for all these 3 age series were assessed as 1.3 at 45 years, 1.4 at 53 years and 1.2 at 60 years of age. Similarly, R values were assessed as 0.27, 0.28 and 0.26, respectively, in these 3 age series. BEF and R values assessed for T. grandis (28 years age) as 1.46 and 0.21; and for A. excelsa (39 years age) as 1.23 and 0.23, respectively. BEF for P. roxburghii trees calculated as 2.3 for 13 years age, 1.75 for 20 years, 1.71 for 22 years, 1.5 for 33 years and 1.46 for trees of 45 years of age. Similarly, R values were 0.2 for 13 years, 0.21 for 20 years, 0.12 for 22 years, 0.13 for 33 years and 0.15 for 45 years of age. P. roxburghii sample trees have shown decreasing order of BEF with increasing age, whereas S. robusta has not shown such trend along the chronosequence.

Research on biomass expansion factor of chinese fir forest in Zhejiang Province based on LULUCF greenhouse gas Inventory

2013 ◽  
Vol 33 (13) ◽  
pp. 3925-3932 ◽  
Author(s):  
朱汤军 ZHU Tangjun ◽  
沈楚楚 SHEN Chuchu ◽  
季碧勇 JI Biyong ◽  
林荫 LIN Yin ◽  
王秀云 WANG Xiuyun ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Chinese Fir ◽  
Zhejiang Province ◽  
Greenhouse Gas Inventory ◽  
Expansion Factor ◽  
Biomass Expansion Factor

Allometric Biomass, Biomass Expansion Factor and Wood Density Models for the OP42 Hybrid Poplar in Southern Scandinavia

2015 ◽  
Vol 8 (3) ◽  
pp. 1332-1343 ◽  
Author(s):  
Anders Taeroe ◽  
Thomas Nord-Larsen ◽  
Inge Stupak ◽  
Karsten Raulund-Rasmussen
Keyword(s):  
Wood Density ◽  
Hybrid Poplar ◽  
Expansion Factor ◽  
Biomass Expansion Factor ◽  
Southern Scandinavia

Influence of stand age class on biomass expansion factor and allometric equations forPinus rigidaplantations in South Korea

2013 ◽  
Vol 28 (6) ◽  
pp. 566-573 ◽  
Author(s):  
Yeon Ok Seo ◽  
Young Jin Lee ◽  
Roscinto Ian C. Lumbres ◽  
Jung Kee Pyo ◽  
Rae Hyun Kim ◽  
...  
Keyword(s):  
South Korea ◽  
Allometric Equations ◽  
Stand Age ◽  
Expansion Factor ◽  
Biomass Expansion Factor ◽  
Age Class

scholarly journals Comparison of individual tree aboveground biomass estimation in community forests using allometric equation and expansion factor in Magetan, East Java, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Rahmanta Setiahadi
Keyword(s):  
Aboveground Biomass ◽  
Allometric Equation ◽  
Biomass Estimation ◽  
Expansion Factor ◽  
Individual Tree ◽  
Biomass Expansion Factor ◽  
Community Forests ◽  
Diameter At Breast Height ◽  
Breast Height ◽  
Tree Component

Abstract. Setiahadi R. 2021. Comparison of individual tree aboveground biomass estimation in community forests using allometric equation and expansion factor in Magetan, East Java, Indonesia. Biodiversitas 22: 3899-3909. The use of allometric equation and biomass expansion factor can facilitate more efficient tree biomass estimation. This study evaluates the accuracy of the allometric equation and expansion factor for quantifying the individual tree aboveground biomass in community forest tree species. Destructive sampling n on 120 trees from four different species: Falcataria moluccana, Melia azedarach, Swietenia macrophylla, and Tectona grandis. For each tree sample, aboveground biomass measured at every tree component, i.e., stem, branches, and leaves. The allometric equation developed using regression analysis with several predictor variables, such as diameter at breast height (D), squared diameter at breast height combined with tree height (D2H), and D and H separately. On another side, the biomass expansion factor was calculated based on the total aboveground biomass and stem biomass ratio. The results found the highest mean aboveground biomass for all species are M. azedarach (326.36±88.40 kg tree-1), S. macrophylla (244.47±98.73 kg tree-1), T. grandis (173.31±80.97 kg tree-1), and F. moluccana (56.56±23.10 kg tree-1). The most significant average biomass expansion factor observed in M. azedarach (1.78±0.03), adhered by T. grandis (1.66±0.09), S. macrophylla (1.61±0.04), and F. moluccana (1.59±0.06). The equation ln? = lna + b x ln (D) was best for estimating aboveground biomass in each tree component and a total of four species with an accuracy of more than 90%.

Sign in / Sign up

Export Citation Format

Share Document