Year 2018, Volume 64 Issue 4 (15.12.2018)
Year : | 2018 |
Volume : | 64 |
Issue : | 4 (15.12.2018) |
Authors : | Alexei MOROZOV, Vladimir MOROZOV, Peter LASER, Nataliy BEZNITSKA |
Title : | FORMATION OF FERTILITY AND PRODUCTIVITY INDICES OF RECLAIMED SOILS UNDER CONDITIONS OF REGIONAL CLIMATE CHANGE OF THE SOUTH OF UKRAINE |
Abstract : | The paper summarizes the results of research on the dynamics of changes in climatic parameters (air temperature and rainfall) over the 70-year period (the end of the XX and the XXI centuries) in the agro-soil zones of south of Ukraine; the main factors of the negative influence of elevated temperatures on properties of soils are revealed; the optimal parameters of agro-technical measures for the reduction of the risk of insufficient soil moisture and increase of agricultural stability are substantiated. The represents the methodological approaches and the results of the evaluation of integrated space-time modelling of the heterogeneity of changes in agrochemical properties of soils in the steppe zone (on the example of Kherson region of Ukraine) under conditions of regional climate change. The paper evaluates the changes of soil-climatic potential of agricultural lands depending on climatic conditions and suggests their comparative estimation by fertility; it determines the total agrochemical potential of dry-steppe soils and develops the gradation according to their ability to maintain steady yields of grain crops. The paper simulates the changes in energy expenditure on soil formation during the development of irrigated agriculture. The study develops the models and the maps of productive moisture content in soils for demanding and less demanding crops for the development and implementation of reclamation measures aimed to increase soil fertility of the dry-steppe zone. The paper suggests the system of nature protection measures for management of agricultural lands considering the qualitative estimation of soils (including irrigated lands) to determine the changes in the potential of reclaimed soils, increase informational content and objectivity of management decisions concerning the development of land reclamation measures and optimization of agricultural land use under conditions of regional climate change. |
For citation : | Morozov, A., Morozov, V., Laser, P., Beznitska, N. (2018): Formation of fertility and productivity indices of reclaimed soils under conditions of regional climate change of the south of Ukraine. Agriculture and Forestry, 64 (4): 153-163. DOI:10.17707/AgricultForest.64.4.17 |
Keywords : | climate, soils, fertility, productivity, irrigation, yield. |
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