Effects of soil erosion on long-term soil productivity in the black soil region of northeastern China

Auteur(s) et Affiliation(s)

DUAN, X.

Asian International Rivers Center, Yunnan University, Kunming, Chine

XIE, Y.

State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine

OU, T.

State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine

Regional Climate group, Dep. of Earth Sciences, Univ., Gothenburg, Suede

LU, H.

State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine

Description :
China's northeastern Black Soil Region, one of the country's most important crop production areas, has been seriously affected by soil erosion. This study evaluated the effects of soil erosion on the long-term productivity of this region. The AA. used a modified productivity index (MPI) model to assess the current effects of soil erosion on soil productivity, as well as to predict long-term change in productivity. The model predicts a 9.6% productivity reduction over 100 years and a 48.3% reduction over 500 years.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 87, n°. 2, p. 268-275, nombre de pages : 8, Références bibliographiques : 45 ref.

Date :
2011

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

Langue :
Anglais