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CNAA / Theses / 2010 / June /

Evolution of arable grayzems soils of the Central part of Moldova and activities to improve their negative qualities

Author: Lungu Marina
Degree:doctor of biology
Speciality: 06.01.03 - Agropedology
Scientific adviser: Valerian Cerbari
doctor habilitat, professor, Institute of Pedology and Agrochemistry "N. Dimo"
Scientific consultant: Serafim Andrieş
doctor habilitat, professor, Institute of Pedology and Agrochemistry "N. Dimo"
Institution: Institute of Pedology and Agrochemistry "N. Dimo"
Scientific council: DH 61-06.01.03-25.12.03
Institute of Pedology and Agrochemistry "N. Dimo"


The thesis was presented on the 18 June, 2010
Approved by NCAA on the 6 October, 2010


Adobe PDF document0.65 Mb / in romanian


grayzems, central part of Moldova, the Codri, deforestation, anthropogenic action


The thesis consists of introduction, four chapters, conclusions and recommendations, a bibliography of 201 appointments, 8 annexes (39 tables), 119 pages of basic text, 27 drawings, 18 tables. The results are published in 10 scientific papers.

Purpose and Objectives: The aim of research is to identify and assess changes in the properties of gray forest soils as a result of their long-term use for arable land and develop interventions to reduce their negative impact. Objectives: identify the historical aspect of the phases of pedogenesis on the estate Ivancea as typical for the hilly territory of Codri, study in the field and laboratory gray virgin forest, cultivated for about 100 years old and leached chernozem, identify positive and negative changes in properties of the studied soils, developing and recommending measures to remedy the unfavorable characteristics.

Research Methodology: Changes in the state of arable soil quality compared with the virgin have studied in two parallel rows of soil profiles located across the forest and arable land (farmland). On the basis of the results were compiled relevant set of soils to compare their properties.

The novelty and originality of the research is the polygenetic nature of soil covering on the territory of Central Moldova; the identification and evaluation of positive and negative changes in the properties of arable grayzems soil; developing and recommending a system of pedoameliorative measures to minimize adverse negative consequences.

Theoretical significance: The studies provide new information on the origin of the polygenetic soil of Central Moldova and will serve as a datum to improve local classification of soils at different levels, which will contribute to improving the quality of the land cadastre.

The practical significance of the work: Experimental test results of various measures to remedy the negative characteristics of arable land will allow to recommend scientific arguments for minimizing adverse consequences and increase production capacity and soil quality for arable grayzems.

Implementation of scientific results. Research results will serve as the theoretical basis and practical basis to implement a system-oriented agriculture to ward soil conservation and rational use. Publications are used in the training of farmers and in the education process.