estimation of aboveground biomass carbon sequestration potential in rangeland ecosystems of iran
نویسندگان
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:
ecopersiaجلد ۴، شماره ۱، صفحات ۱۲۸۳-۱۲۹۴
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