DocumentCode :
2914953
Title :
Assessment of Soil Erosion Risk Based on Loess Deposition Rate
Author :
Liu, Gang ; Liu, Puling ; Zhang, Qiong ; Xu, Wennian
Author_Institution :
Key Lab. of Geol. Hazards on Three Gorges Reservoir Area, China Three Gorges Univ., Yichang, China
fYear :
2011
fDate :
25-28 March 2011
Firstpage :
1
Lastpage :
3
Abstract :
Soil erosion risk is an important index for evaluation and prediction on risk of land resources and ecological environment which are destroyed by soil erosion, and also a basis for soil and water conservation. Radiocarbon dating method was used to research loess deposition rate in north Shaanxi. And soil erosion risk in this area was assessed by the ratio of soil erosion modulus and loess deposition rate. The results indicated that the loess deposition rate in Luochuan, Yanchang, and Hengshan was 0.0179 cm/a, 0.0153 cm/a, and 0.0213 cm/a, respectively. The soil erosion risk was 14.1, 43.3, and 24.8, individually, which were much lager than the critical value 1. Thus, the research area was an important region for soil and water conservation. This research could provide scientific references for management and programming of soil and water conservation, and theoretical basis for environmental treatment decision.
Keywords :
erosion; risk management; soil; water conservation; ecological environment; environmental treatment decision; land resources; loess deposition rate; radiocarbon dating method; soil conservation; soil erosion risk assessment; water conservation; Equations; Laboratories; Land surface; Mathematical model; Meteorology; Soil; Water conservation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
ISSN :
2157-4839
Print_ISBN :
978-1-4244-6253-7
Type :
conf
DOI :
10.1109/APPEEC.2011.5747739
Filename :
5747739
Link To Document :
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