Polesye peat soil bioenergetic potential and its transformation under the long-term influence of anthropogenic factors | Биоэнергетический потенциал торфяных почв Полесья и его изменение под влиянием длительного воздействия антропогенных факторов
2013
Semenenko, N.N., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Land Reclamation
Scientific problems of bio-energy and energy of soils emerge full blown nowadays because of ecological instability and represent concrete practical challenges of modern agronomy upon the questions of crop yield increase and soil fertility increment. Peat soils hold a specific place among the other types of soils for evaluation of their bio-energetic potential because of high level of natural fertility. The main goal of the research appears evaluation of bio-energetic potential of peat soils in natural conditions and under agricultural exploitation. The research shows that bio-energy potential of shallow peat soils is more than 20 thousand GJ/ha (21.96 GJ/ha). Organic matter, carbon, energy potential and the fertility of these soils are reduced under the influence of drainage and long-term (50 years) agricultural use of peat soils. In comparison with undrained soils bio-energetic potential of organogenic layer of agropeat, agropeat-mineral, mineral residually peat and mineral postpeat soils decreases respectively by 22–35, 41, 52–74 and 88 %. Loss of root zone (0–40 cm) soil energy potential is less intensive. Bio-energetic potential of mineral postpeat soils is considerably higher than the one of zonal agrosod-podzol sandy soils.
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