Effects of prolonged irrigation on the humus of steppe soils in southwest Siberia

Records in soils of environmental and anthropogenic changes

Auteurs :
KOVALEVA, E.
DERGACHEVA, M.
CATT, J.A.

Description :
Changes in humus resulting from up to 20 years'irrigation with slightly saline water were studied in dry steppe soils in southwest Siberia. The amounts of brown humic acids and of the Pg fraction increased with the period of irrigation, and their maximum amounts occurred at greater depths in the profile. Other fractions of humus and humic acids fluctuated within the limits typical of dry steppe soils. The humus therefore remained essentially stable under irrigation for up to 20 years.


Type de document :
Congrès

Source :
Symposium : records in soils of environmental and anthropogenic changes, Montpellier, France, 1998-08, Catena (Giessen), issn : 0341-8162, 2001, vol. 43, n°. 3, p. 191-202, Collation : Illustration, Références bibliographiques : 19 ref.

Date :
2001

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena