Abstract
The concentration of carbon dioxide (CO2) has risen continuously in atmosphere due to human induced activities, and has been considered the predominant cause of global climate change. Paulowina tomentosa Steud. (P. tomentosa), a multipurpose tree is popular around global market for its timber and its potential role in CO2 sequestration. In this study, the total biomass carbon of five years old and newly planted P. tomentosa has been estimated. The results indicated that the average total biomass carbon of five years old plant was found to be 4.52±0.53Kg C Year-1 per tree i.e. 9.04±1.06-ton C ha-1 Year-1 (assuming 2000 plants per hector). Likewise, the average total biomass carbon of newly planted P. tomentosa within 4 months was found to be 6.07±0.38 Kg in remote village area in Nepal. The estimated biomass carbon in one year of newly planted plants was found to be 18.21±1.14 Kg Year-1 i.e. 0.36-ton C ha-1 Year-1. These findings reveled that short rotational trees like P. tomentosa can be implemented in agroforestry system to reduce the green house emission in cities and emphasizes the carbon storage potential of agroforestry. In vitro micro propagation technique could be implemented to produce genetically uniform clone of P. tomentosa and can be applied in agroforestry system for the adaptation and to mitigate global climate change.Int. J. Appl. Sci. Biotechnol. Vol 6(3): 220-226
Highlights
Most important greenhouse gas (GHG), carbon dioxide (CO2) is essential for photosynthesis, which sustains the life of plants (Rogers et al, 1994)
The main objective of this study was to measure the total biomass carbon storage potential of previously and newly planted P. tomentosa and to promote the plant as opportunity in agroforestry system to deal with CO2 related mitigation option
In this study total biomass carbon of previously planted P. tomentosa was estimated for a year (August 2015 to July 2016)
Summary
Most important greenhouse gas (GHG), carbon dioxide (CO2) is essential for photosynthesis, which sustains the life of plants (Rogers et al, 1994). Human induced activities have escalated the concentration of CO2 in atmosphere. Its concentration was 270 ppm before industrial revolution (Rogers et al, 1994) and according to data recorded by National Oceanic and Atmospheric Administration (NOAA) it has risen to 412.45 by May 14, 2018. Without additional effort to reduce GHGs emission, it is estimated to rise to more than 1300 ppm by 2100 (Edenhofer et al, 2014). Atmospheric carbon is accumulating in earth’s atmosphere at the rate of 3.5 billion tons per annum (Paustian et al, 2000), the largest portion of which resulting
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