estimation of aboveground biomass carbon sequestration potential in rangeland ecosystems of iran

نویسندگان

behnaz attaeian

assistant professor, department of range and watershed management, faculty of natural resource and environmental sciences, malayer university, malayer, iran

چکیده

ongoing climate change has been a major global challenge since the 1880s. sequestration of carbon(c) in rangelands ecosystems could provide a net carbon sink to offset increases in atmospheric c in global scale. this research is aimed at estimating the above-ground biomass carbon sequestration potential in iran. for this purpose, total rangelands area and productivity data were extracted from the annual reports of agriculture statistical pocketbook (2006-2013) of the country. then productivity data was used to calculate above-ground c storage per province. the maximum and minimum rangeland areas were observed in sistan and baluchestan and mazandaran (nowshahr) provinces, respectively. maximum above-ground biomass c storage was about 1.07 mg cha-1y-1 in fars province. the minimum amount occurred in qom province with only 0.023mg c ha-1 y-1. in summary, mean carbon co2fixation was about 0.25 mg c ha-1 y-1in iran’s rangelands from 2003 to 2013. considering the total rangeland area(≈ 84.8 million hectare) and productivity of iran, 11770.011 gg c y-1 carbon is stored in above-ground biomass annually providing at least 5885 gg organic c sequestration potential.

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عنوان ژورنال:
ecopersia

جلد ۴، شماره ۱، صفحات ۱۲۸۳-۱۲۹۴

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