Comparing potential carbon sequestration of different parts of mountain almond and grape plants and soil in Fars province

Due to widespread areas of natural or manmade woodlands of mountain almond (Amygdalus scoparia Spach.) and extensive rainfed grape (Vitis vinifera L.)، this study was conducted to compare between potential carbon sequestrations of these two shrubs in Fars province. Samples were taken from the whole biomass of both plants include above and underground parts and carbon sequestration rate of each organs was estimated using combustion method in laboratory. Also، potential carbon sequestration of the whole biomass، litter and soil at depths of 0-15، 15-30، 30-50 cm were estimated. Data of Plant parts، soils of understory and open spaces and different soil depths were analyzed using one-way ANOVA design and Duncan''s test in SPSS software (ver. 19). The results showed that there is a significant difference in carbon sink among different plant’s parts (leaf، stem، trunk، root and litter) (p<0. 05). Grape trunk and almond stem had the most potential in carbon sequestration. Almond soil showed more carbon accumulation than grape yard soil. Based on the results obtained، annual carbon sequestration capacity of mountain almond and grape was 5. 88 and 30. 55 kg ha-1 and soil carbon sequestration of mountain almond and grape yard was 354. 1 and 271. 4 tha-1 during 20 and 33 years respectively.