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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 -
DocumentImprovement of reclaimed soil for sustainable wood energy forest and analysis of growth inhibitory factors by growing season of Populus euramericana
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.In this study, the effect of soil amendment and ferilization on soil physicochemical properties and tree growth(Populus euramericana) in reclaimed land was investigated. The stduy plot were established with two tillage levels and three soil additive levels: control(till 20cm, additives 0kg), T1(20cm, 4kg), T3(40cm, 8kg); each soil amendment treatments can be divided by two fertilization treatment(N: non-ferilized, F: ferilized). The first year after soil amendment treatments, NaCl and EC decreased compared to pre-treatment; however, there were no differences among the four treatments. The organic matter, total nitrogen and available phosphorus measured 3years after treatments, significantly increased compared to control while EC and NaCl notably lowered than control. Especially, EC in all treatments except the control was within the optimum range of tree growth(below 0.4dS/m). In terms of fertilization, chlorophyll concentration(SPAD) and biomass productivity in fertilization treatment were hight than no-fertilized treatment. The PCA analysis was performed to examine the relationship between soil abiotic properties and poplar growth each at the initial stage(rootage) and after rootage. The PCA analysis indicated that the major factor for poplar growth each at the initial stage was soil physical properties which play an important role in the early root development. After root development, soil pH and NaCl in the soil were the major growth inhibitory factors. This findings confirmed that the essential conditions for the efficient production of the wood energy feedstock in the reclaimed land were soil physical properties at the initial stage of (Populus euramericana) (before rootage) but soil chemical properties became important at the lateralstage of (Populus euramericana). Keywords: Adaptive and integrated management, Climate change, Economic Development ID: 3622988 -
ArticleProductivity zoning of the taiga ecosystems of the Northern European part of Russia by the blueberry, lingonberry, cranberry and cloudberry merchantable resources
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Since ancient times, wild berries in the North have been considered the most valuable food raw material along with the main food products. The most important food berry resources in the European North of Russia include cranberries (Vaccinium oxycoccos L.), lingonberries (Vaccinium vitis-idaea L.), blueberries (Vaccinium myrtillus L.), cloudberries (Rubus chamaemorus L.). The concept of the carried out research is to ensure the sustainable use of non-wood forest resources to improve the health, food, income, employment, and well-being of the population (SDGs 2, 12, 15). Nowadays the knowledge on the forest berry yielding capacity and related forecasts is in demand with businesses dealing with the use of non-wood raw products, which are of high spatio-temporal variability. Based on the analysis of the available stock materials, general methodological approaches were developed for determining the potential yield capacity by species and combinations of species of berry raw materials in the form of an average annual merchantable stock in kilograms of raw materials per unit area (hectare) for each unit of managed forests (lesnichestvo). It can be used in the planning of forest use for harvesting non-wood forest products. Analysis of spatial information showed that in terms of food berry resources the most productive are the forests of the southern part of the European North of Russia, located in the subzones of the middle and southern taiga. It was revealed that the ecological and biological characteristics of the studied berry species largely determined the localization of areas characterized by their high operational stocks. The main factors, determining the spatial localization of the operational stocks of lingonberry and blueberry, are the landscape features of the territory as well as the level of anthropogenic impact that provides for a high proportion of felling sites of various ages in the lingonberry and blueberry groups of forest types. Keywords: Non-wood forest products; volume of potential yield; the planning and cartographic materials; Arkhangelsk Region; principle of building a map ID: 3479190
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