Aims Different types of land use have different effects on carbon stored in their pools and Co2 emissions. We compared carbon storage in different pools (tree, litter and soil) across main land-uses Mishkhas watershed in the northeast of Ilam province, Iran. Materials & Methods Oak forest, (Quercus brantii Lindl.) (Lu-F) and orchard (Juglans regia L. (Lu-O) in four different ages) were determined for estimation of carbon stocks in tree biomass, the litter and 20 cm depth of soils in two land uses. Findings The results showed that total carbon stocks in Lu-O ecosystem (68.75 Mg ha-1) was significantly higher than Lu-F (41.22 Mg ha-1). In general, soil at the two land-uses was main carbon pool as estimated about 91% and (37.61 Mg ha-1) and 82% (57.01Mg ha-1) of the total carbon stocks in Lu-F and Lu-O, respectively. The above ground biomass of trees was as second carbon pool, contained a lower contribution of total carbon stocks (roughly 6% and 15% in forest and orchard ecosystems). The least carbon storage i.e., about 2% of the total carbon stocks in Lu-F and Lu-O occurred in litter due to the grazing intensity. Conclusions As a conclusions, our findings confirm that land use type can significantly effect on carbon stocks in different pools. Therefore, management strategies are needed to enhance the forest carbon sequestration in Mishkhas watershed of Ilam province
کلید واژگان :Tree biomass; , Litter carbon; , Soil organic carbon stock; , Oak forests; , Juglans regia
ارزش ریالی : 600000 ریال
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