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Surface waters in conditions of climate’s aridization in Republic of Moldova


Author: Ivanov Violeta
Degree:doctor of
Speciality: 11.00.11 - Environmental Protection and Rational Utilization of Natural Resources
Year:2018
Scientific adviser: Maria Nedealcov
doctor habilitat, professor, Institute of Ecology and Geografy of the ASM
Scientific consultant: Gheorghe Duca
doctor habilitat, professor, Moldova State University
Institution: Institute of Ecology and Geografy of the ASM

Status

The thesis was presented on the 7 September, 2018
Approved by NCAA on the 23 November, 2018

Abstract

Adobe PDF document – 3.14 Mb / in romanian

Thesis

CZU 56.5:551.583(478)(043.2)

Adobe PDF document 7.69 Mb / in romanian
142 pages

Keywords

aridization of climate, surface waters, climatic water deficit, evaporability, water balance, climatic changes

Summary

Surface waters in conditions of climate’s aridization in Republic of Moldova”. Dissertation of PhD in Geonomics, Chisinau, 2018. Introduction, four chapters, general conclusions and recommendations, bibliography from 160 sources, 126 pages of the main text, 1 appendix, 46 figures, 29 tables. The obtained results were published in 11 scientific articles.

Scientific domain - 166.02 Environmental protection and rational usage of natural resources.

The goal of the work consists in revealing the interdependencies between the aridization process and conditions of surface waters quality in Republic of Moldova in the conditions of the accelerated rate of climatic changes. The objectives of the work are: to develop a set of ecometric climatic indexes for estimation of particularities of regional climate’s aridization; to obtain an algorithm for estimation of Republic of Moldova’s territory’s exposure to aridization process; to elaborate regression models that demonstrate areas that are vulnerable to risks of manifestation of aridization process, having an impact on surface waters; to elaborate a set of measures for addressing the ecological situation in case of installation of significant dry period. Scientific novelty and originality. For the first time, a theoretical database for estimation of surface waters in conditions of regional climate’s aridization was created, and a scientific argumentation was given for a widening set of ecometric climatic indexes that reveal regional climate’s aridization; a theoretical foundation was elaborated in order to use complex investigation methods, including geoinformational ones, for spatial spatial variability’s estimation of indexes that reveal climate’s aridization and surface waters’ quality; cartographical models of water needs in conditions of climate’s aridization were elaborated on the basinal level.

Scientific novelty of the obtained results. In conditions of Republic of Moldova, an informational database was elaborated, allowing to estimate aridization’s impact on surface waters with: scientific argumentation for usage a specter of ecometric climatic indexes that estimate climate’s aridization degree; elaboration of cartographical models that estimate areas with a high level of exposure to aridization process; complex temporal modeling of ecometric climatic indexes that characterize aridization; elaboration of an algorithm of estimation of republic of Moldova’s territory’s exposure to aridization process; elaboration of cartographical models on the basinal level in order to estimate the areas that are vulnerable to aridization process; obtaining of digital maps that reveal the areas and their needs of water resources for ecological balance’ maintenance in hydrographical basins.

Theoretical importance and applied value of work. For the first time, a scientific argumentation for using a specter of ecometric climatic indexes that estimate aridization process in new climatic conditions on Republic of Moldova’s territory; a set of digital maps on basinal and local levels that reveal the area’s vulnerability to aridization process.

Applied significance of work is demonstrated by the fact that digital maps that reflect the water needs for maintenance of ecological balance on basinal level will be applied for correct management of surface water resources and mitigation of climate’s aridization’ impact on them.

Scientific results that were obtained are implemented in Climatic Changes Office, and certified by an implementation act.