نتایج جستجو برای: and carbon sequestration prescott et al
تعداد نتایج: 17152165 فیلتر نتایج به سال:
among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...
In this research, the impact of a carbon sequestration project, in the Hossein Abad Plain in Southern Khorasan Province of Iran, on the status of water and wind erosion was evaluated. The study area has a harsh climatic condition with low annual precipitation and is prone to well-known 120-day winds in summer. Since 2005, various soil conservation treatments (plantations, over-sowing, plantatio...
Forests are complex ecosystems that develop over centuries through the interactions between organisms and biogeochemical cycles of elements occurring in the soil-atmosphere continuum. The biomass and structure of a forest stand is involved in several ecosystem processes and has been used as an indicator of forest health and productivity. The forest biomass is a key component of the carbon cycle...
This study assessed the potential of carbon stock and carbon sequestration rates in Van Panchayat forests at an altitude of 15001800m. The Total forest biomass was 308.3 t ha -1 , of the total biomass tree layer contributed the most, followed by herbs and shrubs. The forest litter biomass varied between 5.4 t ha -1 (in rainy season) and 6.6 t ha -1 (in winter season). Maximum Carbon sequestrati...
F are a critical component of the global carbon (C) cycle, storing more than 1 × 1015 metric tons of carbon in biomass, detritus, and soils (Dixon et al. 1994). Forest C storage is an important ecosystem service, locking upC thatmight otherwise exist in the atmosphere as carbon dioxide (CO2), a potent greenhouse gas. In the northern hemisphere, forests are estimated to sequester up to 7 × 108 m...
Introduction Reducing environmental damage and preventing land degradation and reducing biodiversity has become a major concern for agricultural policy makers and environmentalists in recent years. Many scholars in developing countries, including Iran, have the most important reasons for the government's failure to stabilize the environment in terms of control and command and control (standard...
Direct injection of CO2 into the ocean is a potentially effective carbon sequestration strategy. Therefore, we want to understand the effectiveness of oceanic injection and develop the appropriate analytic framework to allow us to compare the effectiveness of this strategy with other carbon management options. Here, after a brief review of direct oceanic injection, we estimate the effectiveness...
Forests make up large ecosystems and by the uptake of carbon dioxide can play an important role in mitigating the greenhouse effect. In this study, mitigation of carbon emissions through carbon uptake and storage in forest biomass and the use of forest biofuel for fossil fuel substitution were considered. The analysis was performed for a 3.2 million hectare region in northern Sweden. The object...
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