THE CREATION OF A SPATIAL GIS-REALIZED MODEL OF RATIONAL LAND RESOURCES USE OF EROSION-DANGEROUS LANDS
Journal Title: Вісник Одеського національного університету. Географічні та геологічні науки - Year 2015, Vol 20, Issue 4
Abstract
Purpose. One of the most reasonable mathematical models of rational land use is a logical and mathematical model, which was proposed by H.I. Shvebs. The factors of the soil system functioning are accepted unchanging within the territory. But all factors of water-erosive process, and also factors of forming of the soil productivity are considerably changeable in the space. The purpose of this research is the spatial realization in the GIS of model of the rational land use which taking into account the changeability of basic factors of forming of the soil productivity and its losses as a result of water erosion within the hills. Data & Methods. The fixed system of mathematical equalizations of optimization variant of logical and mathematical model of H.I. Shvebs is in basis of spatial realization of model of the rational land use. The methods of the field survey, statistical processing of the field data and mathematical and geoinformatical modelling are applied for the modelling of spatial changeabilityof factors of water erosion and forming of fertility of soils. The method of geoinformatical modelling is used for realization of model of the rational land use in GIS PCRaster. Results. The spatial model of rational land use consists of a few programmatic modules, which are constituents directed on quantitative calculations of: spatial changeability of actual losses of soil as a result of water erosion, spatial changeability of the productivity of crops, expediently possible losses of soil, amount of organic fertilizers, necessary for maintenance of fertility of soil. The crop yields, which determines the income and expenditure of humus in the soil and soil erosion, which determines the flow rate of the soil resource are presented like the individual modules. The spatial model of rational land use allows to elect the most optimum variant of land-tenure for relatively small areas on the basis of quantitative imitation experiments in the interactive mode.
Authors and Affiliations
A. V. Pyatkova
MODERN THREATS TO FOREST LANDSCAPES: THE CASE OF OIL PALM CULTIVATION IN THE SOUTH WEST REGION OF CAMEROON
Man’s search for security, comfort and efficiency did not affect our ecology until very recently. Uncontrolled population growth and the concomitant additional requirements have led to deforestation and the destruction o...
RESULTS OF PHYTOPLANKTON PIGMENTS STUDIES IN THE ZMIINYI ISLAND COASTAL WATERS IN THE BLACK SEA, 2004-2012
The data on photosynthetic phytoplankton pigments in coastal waters of the Zmiinyi Island in 2004-2012 were analysed in details. Results of studies of Chl а, Chl b, Chl c, pheophytin a concentrations and Margalef’s pigme...
STEPPEOLOGY AS AN INTERDISCIPLINARY TREND IN SCIENCE
Problem Statement and Purpose. In the article, the steppes of Ukraine are considered as a historical, geopolitical, socio-economic, landscape-soil and biotic categories, which makes it possible to propose an interdiscipl...
TERRITORIAL RISK MANAGEMENT: USE OF GIS TOOLS
Abstract. The purpose of the study is to overview the capabilities of GIS tools for risk reduction in Ukraine on different spatial levels and to analyze the implementation of these tools into risk management. Data & Meth...
ETHNOGEOGRAPHIC ENVIRONMENT: PUBLIC-GEOGRAPHICAL ASPECTS
Problem Statement and Purpose. The key issue of the system methodology is the analysis of the degree of complexity and ordering of geosystems, hi this paper, we will define the peculiarities of the ethnic environment, th...