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SOIL-EARTHWORM RELATIONSHIP REFLECTED IN LUMBRICIDAE DYNAMICS


GHEORGHIĆąA BRÎNZEA, ALINA PĂUNESCU, MARIA CRISTINA PONEPAL
University of Pitesti, Faculty of Sciences, Departament of Natural Sciences, Targu din Vale No 1, PiteƟti, Romania, e-mail: georgeta_branzea@yahoo.com; alina_paunescu@yahoo.com; maria_ponepal@yahoo.com.

Issue:

SCSB, Number 2, Volume XXVI

Section:

Volume 26, No. 2

Abstract:

Interactions between soil fauna and their habitat can be described in "positive" and "negative" terms according to the feed-back of the ecosystem balance. The soil cultivated with maize was analyzed in terms of morphological, physical and chemical structure in June and July 2014, in order to determine the specific species and to highlight the relationship between soil and earthworms. The prevalent soil was coluvic-eutric aluvisol on colluvial-proluvial deposits, sandy loam. Lumbricides community comprised nine species classified in three environmental categories (epigeic, endogeic and anecic). Statistics showed low density (ind/m2) and species frequency (%) on this type of soil. Epigeic species recorded the highest abundance. The correlation between species density and soil texture was insignificant (R=0.315; p=0.058), while the correlation between soil pH and relative abundance was significant for two months: June (R=0.240, p<0.002) and July (R=0.202; p<(0.006).

Keywords:

earthworms, soil, dynamics, feed-back.

Code [ID]:

SCSB201702V26S01A0007 [0004667]

Note:

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