Analysis of biomass and carbon potential on eucalyptus stand in industrial plantation forest, North Sumatra, Indonesia

Abstract

Forests degradation causes forestry businesses to be economically less profitable than other agribusiness commodities, thus triggering the policies of governments that plan to convert natural forests to other uses, such as industrial forest plantations. The purpose of this study was to determine the potential of biomass and carbon stores in eucalyptus stands in industrial plantation forests, North Sumatra, Indonesia. This research was carried out in Industrial Plantation Forest of Toba Pulp Lestari Areas, Toba Samosir, North Sumatra, Indonesia. Analysis of carbon content was carried out at the Laboratory of Chemical Products of Forest, Faculty of Forestry, Bogor Agricultural University. Preparation of research permanent sample plots (PSP) was carried out using the nesting plot method. The research permanent sample plot (PSP) made was three plots. Analysis of biomass and carbon was done by the destructive method felling of sample trees and measuring their diameter, length, and wet weight. To find out the eucalyptus carbon content, we took the samples from each part of the plant and tested in a laboratory. The results showed that the average carbon content of Eucalyptus stands on the main stem was 34.66%, in the branch was 25.75%, and in the leaf was 22.46%, respectively. This research found that the selected allometric equations for estimating the carbon stock of eucalyptus stands was W = -174.670 + 0.347D2 + 8.180H and C = -55.668 + 0.085D2 + 2.947H (W=biomass; C=carbon; D= diameter at breast height; H=height). This research indicated that the carbon potential of eucalyptus stands was 71.05 tons/ha and 26.23 tons C/ha.

Diversity, biomass, and carbon stock of understorey plants in the rubber agroforestry and rubber monoculture systems in Central Tapanuli District, North Sumatra, Indonesia

“…affect the aboveground biomass carbon. Some researchers indicated that differences of carbon stocks in plant stands depend on part of plant (Muhdi et al 2019) and improved forest management can diminish CO2 emissions Putz et al (2008) and stand damages (Purwoko et al 2018).…”

Logging waste of Eukaliptus ind 61 clone in industrial plantation forest, North Sumatra, Indonesia

“…In addition, the harvesting waste can also occur due to the determination of the wrong felling direction, thus causing the wood to break during logging. In addition, in forest harvesting activities, problems often occur because the equipment used stop working due to lack of maintenance of the forest harvesting tools [6]. According to the research by [7] and [8] resulted that the occurrence of a large amount of logging waste and residual stand damage caused by technique of felling and determining the direction of felling.…”

Chainsaw Operators Perception on Occupational Health and Safety (OHS) in Industrial Plantation Forest, North Sumatra, Indonesia

“…Logging activities are mostly done using mechanical cutting tools, ranging from chainsaws to harvester [3]. Several studies have shown that timber harvesting causes environmental damage including to residual stands and forest biomass [4,5,6].…”