The effect of erosion in rural area and recommendations for diminishing the negative consequences
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631.459(478-22) (2)
Știința solului. Pedologie. Cercetări pedologice (714)
SM ISO690:2012
COJOCARU, Olesea. The effect of erosion in rural area and recommendations for diminishing the negative consequences. In: Revista Botanică, 2016, nr. 2(13), pp. 90-94. ISSN 1857-2367.
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Revista Botanică
Numărul 2(13) / 2016 / ISSN 1857-2367 /ISSNe 2587-3814

The effect of erosion in rural area and recommendations for diminishing the negative consequences
CZU: 631.459(478-22)

Pag. 90-94

Cojocaru Olesea
 
State Agrarian University of Moldova
 
 
Disponibil în IBN: 12 ianuarie 2017


Rezumat

The fertile soil is limited and irreplaceable resource. Nevertheless, every year, 12 million hectares of lands are lost because of the erosion processes. In the Republic of Moldova, soil degradation processes are conditioned both by natural conditions as well as anthropogenic factors. From the natural conditions, there are highlighted climatic phenomena (heavy rain, frequent periods of dryness and drought, strong winds), difficult terrain, lithogenesis and rock composition of the surface. Currently, on territory of the Republic of Moldova, about 40 % of agricultural lands are eroded soils of various degrees: weakly eroded – 23.2 %, moderately eroded – 11.7 % and strongly eroded – 4.9 % (Andrieș et al, 2008; Cerbari, 2007). Every year eroded land area increases by an average of 0.9 % and annual losses of fertile soil are estimated at 26 million tons. The balance of humus is profoundly deficient, the reserves of humus decrease annually by about 1 t/ha, nutritional elements – with 180-200 kg/ha. The aim of our research was pointing out the particularities spread in Negrea village, assessing changes and negative aspects of the characteristics of these soils as a result of erosion and appreciation of pretability to different agricultural uses. Pedological researches performed in the village Negrea have shown that the favorable climatic conditions, relief and soil, have led to total practical use of its agricultural land under perennial plantations. The high pretability for vineyards and orchards prevents the total silting of the land area. The order of the natural ordering of genetic horizons was derogation. The morphological description of the profiles was performed and it was elaborated the map of soils obtained from 1:5000 scale mapping, which demonstrates spatial distribution of soils with different degree of erosion. The data obtained confirmed that erosion in the territory of village Negrea is the main factor of irrecoverable destruction of agricultural soil profile and reduced its production capacity (Cojocaru, 2015).

Cuvinte-cheie
erosion, soil, pretability, morphological composition,

rural area from the Republic of Moldova