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Rates of soil erosion in China : A study based on runoff plot data

Auteur(s) et Affiliation(s)

GUO, Q.
State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine
HAO, Y.
State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine
LIU, B.
State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, Chine


Description :
In this study, runoff and soil loss rates of sheet and rill erosion under natural conditions based on plot studies in China are reviewed. The history of plot studies in China is briefly introduced, and basic information, such as the geographic distribution of soil erosion monitoring sites, the distribution of slope length and the slope gradient of runoff plots, is described. Then, the runoff and soil loss rates of 5 water erosion regions in China were analyzed in terms of the main land use types. In China, the regional differences in the soil loss rate were mainly observed on fallow land and farmland, whereas almost no differences were observed on forest, shrub and grasslands. The soil loss rates of farmland with conventional tillage in northwest and southwest China were much higher than in most other countries. This indicated that farmlands in China are still suffering from a very serious erosion problem that requires additional future attention.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2015, vol. 124, p. 68-76, nombre de pages : 9, Références bibliographiques : 96 ref.

Date :
2015

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

Langue :
Anglais
Droits :
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