نقش درمنه کوهی (Artemisia Aucheri) در جذب کربن اتمسفری در مراتع استان سمنان Journal Article

Abstract:

Climate change and global warming are having a devastating effect on the lives of organisms, destroying natural ecosystems, causing floods and droughts, and upsetting the overall climate and ecological balance. Carbon sequestration is the process by which carbon dioxide is absorbed into the atmosphere and accumulates in plant tissues as well as in the soil as hydrocarbons. The cover of the plant with woody texture has the ability to absorb more carbon and in dry pastures it mostly includes the vegetative form of the plant. In this paper, with the aim of assessing the carbon sequestration capacity of a plant species in Artemisia aucheri, part of the dry pastures in Semnan province was selected. So that the sampling of vegetation was done by random-systematic method in the form of 20 plot 1 * 1 square meters along 2 transects perpendicular to each other with a length of 100 meters. Their carbon content was determined by combustion. Soil sampling was performed at two depths of 15-0 and 15-30 cm in the root area and outside the root zone. The Walky-Black method was used to determine the organic carbon of the soil. Then, by calculating the apparent specific gravity (gr / cm3) of soil at each depth and multiplying the amount of organic carbon in the soil by the apparent specific gravity, the total weight of carbon trapped in the soil was obtained. An independent t-test was used to examine and compare soil carbon sequestration at any depth. This study was performed using EXCEL and SPSS v.16 statistical software. The results showed that the underground organs (roots) with 449.29 kg / ha had the highest rate of destruction among other organs (foliage, stem). Also, the amount of soil carbon sequestration at a depth of 15-15 is greater than the depth of 15-30 cm, and the species in the mountainous valley has a significant effect (at the level of 5%) on the storage of organic carbon at a depth of 15-30 cm between the two regions of root and outer range. It is rooted in the range, while at first glance it did not have a significant effect on carbon storage.