Carbon Sequestration under Hazelnut (Corylus avellana) Agroforestry and Adjacent Land Uses in the Vicinity of Black Sea, Trabzon, Turkey (original) (raw)

Comparative Carbon Storage of Lanzones ( )-fruit tree and Falcata( )-forest tree based Agroforestry Systems

Two agroforestry systems, a fruit tree-based with lanzones ( ) as dominant fruit tree and a forest tree-based with falcata ( ) as dominant wood tree, were studied to compare their total carbon stocks in the above ground biomass (upperstorey and understorey), floor litters and soil and to determine any differences of soil organic carbon (SOC) in three soil depths: 0-30, 31-60 and 61-100 cm. Each site representing one agroforestry systems was grouped according to vegetation stand. For each vegetation stand, representative samples were taken from upper storey and under storey above ground biomass, floor litters and soil. Samples were analyzed for carbon content at International Rice Research Institute's (IRRI)Analytical Service Laboratories (ASL), Los BaƱos, Laguna using Dumas Combustion Method. The SOC in the soil depths (0-30, 31-60 and 61-100 cm) did not vary significantly in the two agroforestry systems. The above ground upperstorey biomass had the most carbon followed by the carbon stored in the soil, then, above ground understorey biomass and lastly, floor litters. The above ground upperstorey biomass of the fruit tree-based agroforestry system had slightly higher carbon stock at 38.92 tC ha compared with the forest tree-based agroforestry system at 34.66 tC ha due to the lanzones fruit tress. The 4 - year old falcata-based agroforestry systems had higher annualCsequestration of 14 tC ha yr while the lanzones-based agroforestry system had 1.8 tC ha yr . Nevertheless, whatever is the main tree component, agroforestry performs ecological services as in carbon sequestration and at the sa

Farmland trees for the improvement of crop yield, soil fertilities, soil and water conservation, and carbon sequestration: A Review

Article, 2021

This paper examines the role of farmland trees for the improvement of soil fertilities, enhancement of crop yield, soil and water conservation and Carbon sequestration. Natural resource degradation was one of the major problems that have been affecting social, ecological and economic situation all over the world in general and the highlands of Ethiopia in particular, where there is high population pressure, land susceptible to degradation, climate change, an exploitative farming style which further aggravated land degradation. Hence, different conservation strategies such as soil and water conservation, tree planting on degraded areas and area enclosures were launched at different times. Whereas, researchers have been recommended different ecologically sound agroforestry practices for Ethiopia especially in sloppy and areas susceptible to degradation. Some tree species were identified, and farmers conserved and maintained them on their farmlands traditionally. Hence, well-designed agroforestry practices have significantly reduced soil erosion and surface runoff due to interception of rainfall by the tree canopy, soil surface cover by litter, and formation of erosion-resistant soil structure. Studies indicated that agroforestry is efficient in insuring agricultural sustainability through enhancement of soil fertility by the addition of plant nutrients (N, P, K, Mg, Ca) because most of the agroforestry trees are leguminous that can fix nutrients that are essential for plant growth and development and helped in increasing crop yield. Besides, non-leguminous trees also add organic matter (OM) though the value varies with crop type, tree species, and agro-ecology. Therefore in introducing agroforestry practices, one has to consider crop type, tree species, and agro-ecology under which the practices will be implemented. Besides, agroforestry has the potential to sequester carbon at a higher rate than annual crops because annual crops can only accumulate through their roots and retention of crop residue, whereas the tree accumulated Carbon through roots, litter, and aboveground biomass and reduce global warming. Hence, integrating niche compatible trees into agroforestry practices has a higher potential for production and protection services mainly in sloppy areas.

Comparing the Early Stage Carbon Sequestration Rates and Effects on Soil Physico-Chemical Properties after Two Years of Planting Agroforestry Trees

Journal of Basic & Applied Sciences, 2017

Farm friendly and fast growing trees are the sustainable, cheaper and efficient source of carbon sequestration and carbon stock, however, their carbon sequestration potential vary among tree species depending upon several factors. This study was conducted to determine the carbon sequestration potential and carbon storage difference among different tree species at early stage. Second objective of this study was to observe the effects of trees on the physico-chemical properties of soils. Seedlings of fifteen widely planted farm trees species were planted under same set of climatic and soil conditions. Employing tree biomass after two year of planting (2014-2016), carbon stocks and carbon sequestration rates were calculated. Soil samples were collected under each tree species at two depths: 0-15cm and 16-30 cm, to determine the physico-chemical properties of soils such as pH, EC, N, P, K, C and organic matter (O.M.). It was found that Populus deltoides contained the highest carbon stoc...