Whole Tree Biomass and Carbon Stock

2019 ◽  
pp. 243-248 ◽  
Author(s):  
Markus Didion ◽  
Anne Herold ◽  
Esther Thürig
Keyword(s):  
Carbon Stock ◽  
Tree Biomass ◽  
Whole Tree

scholarly journals Carbon stock estimation of Shree Rabutar Forest of Gaurishankar Conservation Area, Dolakha, Nepal

2018 ◽  
Vol 6 ◽  
pp. 61-67
Author(s):  
Karishma Gubhaju ◽  
Dipesh Raj Pant ◽  
Ramesh Prasad Sapkota
Keyword(s):  
Carbon Stock ◽  
Shannon Index ◽  
Tree Biomass ◽  
Carbon Dioxide Absorption ◽  
Pinus Roxburghii ◽  
Conservation Area ◽  
Rhododendron Arboreum ◽  
Alnus Nepalensis ◽  
Below Ground ◽  
Stock Estimation

Forests store significant amount of atmospheric carbon in the form of above and below ground biomass and the amount of carbon stored in forests differs along spatial continuum which provides important information regarding forest quality. This study was carried out to estimate the carbon stock of Shree Rabutar Forest of Gaurishankar Conservation Area, Dolakha, Nepal. In total, 20 circular sampling plots with an area 250 m2 were randomly laid in the study area. Ten tree species were observed in the sampling plots laid in the forest. The higher values of density, frequency, abundance and basal area were observed for Rhododendron arboreum, Alnus nepalensis, Pinus roxburghii and Pinus wallichiana. On the basis of Important Value Index, the dominant tree in the forest was Alnus nepalensis followed by Rhododendron arboreum and Pinus roxburghii. Shannon Index of general diversity of trees in the forest was 0.74 with equal value of Evenness Index, whereas the index of dominance was low (0.22) in the forest. Mean biomass of the forest was 464.01±66.71 tonha-1 contributed by above ground tree biomass (384.44 tonha-1), leaf litter, herbs and grasses biomass (2.69±0.196 tonha-1) and below ground tree biomass (76.88±11.13 tonha-1). Mean carbon stock was 262.77±30.79 tonha-1 including soil carbon stock 44.69±2.25 tonha-1. Individuals of trees with 20-30 cm DBH class were observed in maximum number, which shows that the forest has high potential to sequester carbon over time. Carbon stock estimation and forest management can be one of the potential strategies for climate change mitigation especially through carbon dioxide absorption by the forests.

Tree biomass quantity, carbon stock and canopy correlates in mangrove forest and land uses that replaced mangroves in Honda Bay, Philippines

2018 ◽  
Vol 24 ◽  
pp. 174-183 ◽  
Author(s):  
Jose Alan A. Castillo ◽  
Armando A. Apan ◽  
Tek Narayan Maraseni ◽  
Severino G. Salmo
Keyword(s):  
Mangrove Forest ◽  
Carbon Stock ◽  
Land Uses ◽  
Tree Biomass

The Potential Use of Whole-tree Biomass for Bio-oil Fuels

2009 ◽  
Vol 31 (20) ◽  
pp. 1829-1839 ◽  
Author(s):  
E. M. Hassan ◽  
F. Yu ◽  
L. Ingram ◽  
P. Steele
Keyword(s):  
Tree Biomass ◽  
Bio Oil ◽  
Potential Use ◽  
Whole Tree

scholarly journals Aboveground biomass of substitute tree species stand with respect to thinning – European larch (Larix decidua Mill.)

2011 ◽  
Vol 57 (No. 1) ◽  
pp. 8-15 ◽  
Author(s):  
J. Novák ◽  
M. Slodičák ◽  
D. Dušek
Keyword(s):  
Aboveground Biomass ◽  
Dry Matter ◽  
Magnesium Deficiency ◽  
Stem Bark ◽  
Nutrient Losses ◽  
Tree Biomass ◽  
European Larch ◽  
The Czech Republic ◽  
Calcium And Magnesium ◽  
Whole Tree

This study is focused on substitute European larch stands in the Kru&scaron;n&eacute; hory Mts. (northern part of the Czech Republic). Research was conducted within larch thinning experiment Kalek (780 m a.s.l. in the category Piceeto-Fagetum oligo-mesotrophicum &ndash; Calamagrostis villosa). Results showed that the aboveground biomass of the investigated substitute unthinned larch stand represented approximately 102 thousand kg of dry matter per ha at the age of 20 years. Stemwood (ca 59%) is the most important part of the aboveground biomass. Needles, live and dead branches accounted approximately for 6%, 17% and 11%, respectively, and stem bark only for 7%. At the age of<br />20 years, the investigated substitute unthinned larch stand accumulated: nitrogen &ndash; 307 kg, phosphorus &ndash; 21 kg, potassium &ndash; 136 kg, calcium &ndash; 122 kg, magnesium &ndash; 53 kg per hectare. Thinning with consequent removal of aboveground biomass may result in nutrient losses. Especially, the removal of whole tree biomass by thinning for chipping in areas previously degraded by acid deposition may result in calcium and magnesium deficiency because of their low content in forest soil. On the other hand, thinning supported faster growth of trees left after thinning and consequently faster biomass and nutrient accumulation. Our results supported the recommendation that the use of biomass from thinning for chipping should be limited to stemwood only and the remaining aboveground biomass (mainly needles and branches) should be left in the forest ecosystem for decomposition in conditions of the historically disturbed area of the Kru&scaron;n&eacute; hory Mts.

scholarly journals Carbon Pools in a Hemiboreal Over-Mature Norway Spruce Stands

Forests ◽  
2018 ◽  
Vol 9 (7) ◽  
pp. 435 ◽  
Author(s):  
Laura Ķēniņa ◽  
Didzis Elferts ◽  
Endijs Bāders ◽  
Āris Jansons
Keyword(s):  
Norway Spruce ◽  
Boreal Forests ◽  
Carbon Stock ◽  
Basal Area ◽  
Carbon Pool ◽  
Total Carbon ◽  
Forest Site ◽  
Tree Biomass ◽  
Spruce Stands ◽  
Site Types

Old unmanaged forests are commonly assumed to be carbon neutral; however, there is still a lack of reference studies available to increase the recognition of carbon stock changes in these forests. Studies of old forest carbon storage from hemiboreal regions are very rare compared to temperate and boreal forests in Europe; therefore, the aim of this study was to quantify the carbon stock in hemiboreal over-mature (167–213 years) Norway spruce (Picea abies (L.) Karst.) stands. To explore the total ecosystem carbon pool, the carbon stock of tree biomass, deadwood, and soil in unmanaged (for at least the last 40 years) spruce stands was calculated and compared between different forest site types on dry, wet, and drained mineral soils. Total carbon stock of hemiboreal over-mature spruce stands ranged from 164.8 Mg C ha−1 to 386.7 Mg C ha−1, and 238.5 Mg C ha−1 on average, with no significant differences (p > 0.05) between the forest site types. The carbon stock of tree biomass was significantly affected by the basal area of the upper tree layer (p < 0.0001) and the interaction between the forest site type and proportion of spruce in the stand composition (p = 0.002). Tree biomass was the dominant carbon pool, followed by soil and deadwood in over-mature spruce stands.

scholarly journals UMA DÉCADA DE DINÂMICA DA FIXAÇÃO DE CARBONO NA BIOMASSA ARBÓREA EM FLORESTA OMBRÓFILA MISTA NO SUL DO PARANÁ

FLORESTA ◽  
2013 ◽  
Vol 43 (1) ◽  
pp. 153 ◽  
Author(s):  
Francelo Mognon ◽  
Felipe Scheibe Dallagnol ◽  
Carlos Roberto Sanquetta ◽  
Ana Paula Dalla Corte ◽  
Tauane Garcia Barreto
Keyword(s):  
Rain Forest ◽  
Carbon Stock ◽  
Community Dynamics ◽  
Carbon Sink ◽  
Forest Biomass ◽  
Mixed Forest ◽  
Tree Biomass ◽  
Increase Rate ◽  
Annual Carbon ◽  
Annual Biomass

 O presente estudo teve como objetivo avaliar anualmente a dinâmica da fixação do carbono na biomassa arbórea em Floresta Ombrófila Mista Montana ao longo de uma década. Foram utilizados dados de inventário florestal contínuo advindos de quatro parcelas permanentes de um hectare cada, localizadas em General Carneiro, PR. O período de coleta dos dados iniciou em 1999 e foi concluído em 2009. A estimativa de biomassa arbórea acima do solo no ano de 1999 foi de 178,5 t.ha-1, atingindo valores de 186,75 t.ha-1 e obtendo um IPA da ordem de 0,75 t.ha-1.ano-1. Dessa forma, as estimativas de carbono estocado no fragmento avaliado foram de 74,07 t.ha-1, atingindo, após uma década, 77,53 t.ha-1. Conclui-se que a floresta mostrou, nas condições vigentes, baixa capacidade em fixar carbono, com uma taxa de incremento anual da ordem de 0,31 t.ha-1.ano-1. No entanto, embora a floresta apresente um baixo incremento anual de carbono, pode ser caracterizada como um sumidouro do mesmo, devido ao estoque de carbono existente em sua biomassa florestal. Dessa forma, mesmo uma floresta próxima da estagnação em termos de fixação de carbono pode proporcionar benefícios socioambientais, entre outros, na forma de sumidouros de carbono.Palavras-chave: Biomassa florestal; estoque de carbono; dinâmica de comunidade.AbstractA decade of carbon sink dynamics in biomass in mixed rain forest in the south of Paraná. This research aims to  evaluate, annually, dynamics of carbon sink in Montana Ombrophilous Mixed Forest along a decade. The data is from four permanent continuous inventory plots of one hectare each, located in General Carneiro - PR. The data collection began in 1999 and was completed in 2009. The above-ground tree biomass estimated in 1999 was 178.5 t ha-1, reaching values of 186.75 t.ha-1, with an annual biomass growing 0.75 t ha-1. year-1. Therefore the stored carbon in the focused fragment was estimated at 74.07 t.ha-1; a decade after it reached 77.53 t ha-1 of stored carbon. As result, the forest revealed, under the prevailing conditions, low capacity to fix carbon, with an annual increase rate of 0.31 t ha-1.year-1. However, although the forest presents low annual carbon increase it can be characterized as a carbon sink, due to the existing carbon stock in the forest biomass. Therefore, even a forest near to stagnation in relation to carbon sink can still perform its environmental service.Keywords: Forest biomass; carbon stock; community dynamics.  

Functions for estimating belowground and whole tree biomass of birch in Norway

2016 ◽  
Vol 31 (6) ◽  
pp. 568-582 ◽  
Author(s):  
Aaron Smith ◽  
Aksel Granhus ◽  
Rasmus Astrup
Keyword(s):  
Tree Biomass ◽  
Whole Tree

Tree biomass and carbon stock: understanding the role of species richness, elevation, and disturbance

2020 ◽  
Vol 61 (1) ◽  
pp. 128-141 ◽  
Author(s):  
Swapna S. Khadanga ◽  
Shanmuganathan Jayakumar
Keyword(s):  
Species Richness ◽  
Carbon Stock ◽  
Tree Biomass
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