[Download] "Application of Environmental Protection Measures for Clay Loam Cambisol Used for Agricultural Purposes/Aplinkosaugos Priemoniu Taikymas Agrarines Paskirties Sunkaus Priemolio Rudzemiuose (Report)" by Journal of Environmental Engineering and Landscape Management # Book PDF Kindle ePub Free

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• Title: Application of Environmental Protection Measures for Clay Loam Cambisol Used for Agricultural Purposes/Aplinkosaugos Priemoniu Taikymas Agrarines Paskirties Sunkaus Priemolio Rudzemiuose (Report)
• Author : Journal of Environmental Engineering and Landscape Management
• Release Date : January 01, 2011
• Genre: Science & Nature,Books,
• Pages : * pages
• Size : 284 KB

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1. Introduction Soil organic matter, which is a multi-component and constantly changing part of soil, exerts a marked effect on the entire ecosystem and its stability. Carbon (C) is the main constituent of organic matter. Plant and bacteria associations existing in the soil photosynthetically fix atmospheric carbon and other elements that are returned into the soil in the form of plant and animal residues (Nieder et al. 2003). Meanwhile, soil micro-organism associations break down plant residues by catalysing major biogeochemical reactions depending on specific soil conditions. This is not simply organic matter utilisation, but also humic matter formation in the soil. It is important that new compounds form in the soil that do not exist in live organisms but which are vital for incessant existence of contemporary life forms ([TEXT NOT REPRODUCIBLE IN ASCII] 2001). Organic matter humification is a process conducive to the soil since thanks to it organic matter resources increase and as well as soil nutrient stocks available for plants. These processes determine supply of nutrient elements to plant and animal associations of the ecosystem and to large extent their quality and productivity (Baltrenas et al. 2010). The amount of carbon which is annually incorporated into the composition of humic substances ranges from 0.6 to 2.5 x [10.sup.9] t (Op[??]ob 1990).

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