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(Article of periodic en Anglais - 2012)

Document title

Stone and gravel contents of arable soils influence estimates of C and N stocks

Authors(s) and Affiliation(s)

RYTTER R.-M. (1) ;
(1) Rytter Science, Röstånga, SUEDE

Abstract

In this study, relative volumes of stones and gravel were investigated in the top soils, i.e. down to 30 cm depth, of five Swedish arable sites. Bulk density and gravel volume were determined by soil coring and stone volume using the rod penetration method. A function for estimation of relative stone volume from mean penetration depth was developed. The results showed that although the relative volumes of stones and gravel were small, at most 8%, neglecting the volume occupied by rock fragments led to an overestimation of C and N stocks by 8-9%. It was concluded that the inclusion of stone and gravel volume of arable soils may be important if nutrient stocks of different sites are compared, or the effects of land use changes are scaled up to regional or global levels

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 95 [pp. 153-159]

Bibliographic references : 45 ref.

Collation : 3 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.02.015

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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