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DocumentSoil organic carbon and nutrient availability under Populus deltoides based agroforestry system in semi-arid region of North-West India
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.To achieve biological production on a sustainable basis through the addition of soil organic carbon (SOC) and check land degradation, Populus deltoides is a promising species recognized as an important tree component in agroforestry system (AFS) in the present changing climate. The soil is enriched through the addition of leaf litter in large quantities by this tree, which ultimately improves the fertility in terms of SOC, available N, P and K. However, scanty information is obtainable related to associations between soil properties and poplar based AFS. In this communication, the objective of this study to examine the effect of three old poplar based AFS on soil OC, available N, P and K. The site consisted of six different spacings: i.e. 3×3m, 4×3m, 5×3m, 6×3m, 7×3m and 8×3m of poplar were intercropped with winter wheat, and in adjacent agricultural control plot, where winter wheat was the sole crop (devoid of tree). We quantified soil properties such as soil SOC and available N, P and K at 0-15 cm depth and studied their spatial variability in relation to different spacings of poplar based AFS during 2018-2019. SOC accumulation rates increased with the decrease in tree spacing and were maximum (0.69%) under 3×3 m spacing. The available soil N, P and K increased significantly under different spacings of poplar based AFS in all the treatments from their initial values. The highest available soil N (233.5 kg ha –1 ), P (16.1 kg ha–1) and K (285.3 kg ha–1) were recorded under 3 × 3m spacing compared to 4×3m, 5×3m, 6×3m, 7×3m, 8×3m and sole cropping after harvesting of wheat crop. Keywords: Climate change, Adaptive and integrated management, Research, Agriculture, Deforestation and forest degradation ID: 3486112 -
DocumentExperimental analysis of the effect of pine needle ash on water movement of forest soil
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The effect of the ash layer on the infiltration capacity of the wildfire-affected area depends on the type of ash, the thickness of the ash layer, and the rainfall characteristics. In this study, the sealing and clogging of the soil were quantitatively analyzed according to the thickness of the ash layer and the intensity of rainfall, and the effects of these phenomena on the infiltration capacity of the soil were comparatively analyzed.
As a result of analyzing the porosity according to the soil depth using the resin impregnation method, the average porosity at a depth of 0 – 5 mm was reduced by up to 29% and at least 9% compared to the soil without ash layer (control), and the average porosity at a depth of 0–10 mm decreased up to 54 %, at least 10%. At a soil depth of 5–10 mm, the degree of pore reduction decreased with increasing ash thickness at the same rainfall intensity. At the ash thickness of 20 mm, the porosity at a soil depth of 10–15 mm decreased for more than 10-year rainfall. The porosity index according to the average porosity of soil depth 0-15 mm and the infiltration rate of clogged soil had a positive correlation, and when the porosity index decreased by 1%, the soil infiltration rate decreased by 0.0003812 cm/s. Keywords: Deforestation and forest degradation, Monitoring and data collection ID: 3623004 -
ArticleForest bioeconomy as an engine for sustainable development, water resources management and mitigation of the effects of climate change
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Brazil presents a great opportunity for the development of the bioeconomy, based on the management of natural forests, especially public forests, as well as the integration of the forestry component into agricultural systems, especially in private areas. Related to the management of natural forests, the importance of expanding the use of biodiversity products, especially non-timber, in a sustainable manner and with technological innovation, is highlighted. Currently, just 10 products accounts for more than 90% of non-timber forest production from native forests. A potential that is still underutilized, especially if we consider the Amazon biome. With regards to the integration of the forestry component into agricultural systems, the various forms of production developed around the world stand out, which are important alternatives for water conservation, sustainable development and mitigation of the effects of climate change. In Brazil, the Forest Law differentiates areas occupied by family farmers or traditional peoples and communities, encouraging the practice of agroforestry systems in Legal Reserve areas, as longer as they do not deviate from the existing vegetation cover and do not harm the environment. Therefore, agroforestry systems are presented as an alternative for their potential for income generation, water conservation, among other environmental services. In this sense, several practices are discussed around the world, such as: “domestic forest”, “forest gardens”, “climate smart agriculture” and “integrated landscape management. In general, it is observed that Brazil presents a great opportunity for the development of the bioeconomy, from the management of natural forests and the integration of the forest component to agricultural systems. Finally, these development opportunities for the Forest Bioeconomy stand out as paths for Sustainable Development, Water Resources Management and the Mitigation of the Effects of Climate Change. Keywords: Adaptive and integrated management, Sustainable forest management, Economic Development, Climate change, Agriculture. ID: 3623981
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