IGB

Connexion

(Article of periodic en Anglais - 2012)

Document title

Changes in soil nutrient and enzyme activities under different vegetations in the Loess Plateau area, Northwest China

Authors(s) and Affiliation(s)

WANG B. (1 2 3) ; XUE S. (1 2) ; LIU G.B. (1 2) ; ZHANG G.H. (1 2 3) ; LI G. (4) ; REN Z.P. (3) ;
(1) State Key Lab. of Soil Erosion and Dryland Farming on Loess Plateau, Northwest Univ. Shaanxi, Yangling, CHINE
(2) Inst. of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Shaanxi, Yangling, CHINE
(3) School of Geography, Normal Univ., Beijing, CHINE
(4) Dep. of Geography and Environmental Studies, California State Univ., Hayward, ETATS-UNIS

Abstract

This study examined the changes in soil properties and soil quality 30 years after cultivated farmland was restored back to forest land in Loess Plateau, China. Specifically, organic matter, total nitrogen (N) and phosphorus (P), available N, P and Potassium (K) contents and enzyme activities in soils were tested and analyzed. The study showed that after 30 years of restoration, nutrients content in the soil of mixed forest of black locust and amorpha increased significantly. However, nutrients content in the soil of mixed forest of Chinese pine and amorpha decreased. The study also found that the organic matter content was relatively low in the restored soils, compared with not-restored land. This may be caused by the high enzyme activity per unit of organic carbon in the soils of the study area which tends to help decompose and therefore decrease the organic matter in soil

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2012, vol. 92 [pp. 186-195]

Bibliographic references : 40 ref.

Collation : 9 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.2011.12.004

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 26260750 : Permanent link - XML version
Powered by Pxxo