DBPapers
DOI: 10.5593/sgem2017/32/S14.091

A COMPARISON OF SOIL ORGANIC CARBON STOCKS IN PASTORAL, CROPPING AND FOREST SOILS

E. D. Bobric, I. G. Breaban, E. Rusu
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-05-8 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 32, 703-710 pp, DOI: DOI: 10.5593/sgem2017/32/S14.091

ABSTRACT

The conversion of forest to pastoral and agricultural management has important implications for carbon storage in soils. The stationary conditions of Neamtu catchment is characterized by an altitudinal difference between 270 - 1523 meters, 418 sq. km surface area, with notable differences of morpho-lithological, climatic, hydrological and biogeographical conditions reflected in both soil diversity and carbon content differences. This study aimed at calculating and comparing the estimated soil carbon stocks in different types of land use. The soil carbon stock (SCS) depends on forestry stations type, forest physio-climatic units, forests history and management. Moreover, the soil organic carbon stocks (SOC) were estimated using a mean value of 80 t C/ha for temperate forest and pastoral ecosystems while for agricultural the assigned mean was 50 t C/ha. The SCS trend expressed by the sequence of grassland soil>forest soil>cropland soil is a cause of the decreasing with 20% of SOC after grassland shifted to forest. The statistical analysis indicated a positively correlation of soil organic content with total nitrogen content.

Keywords: Soil carbon stocks, forest type, grassland, cropland

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