Erosion response to anthropogenic activity and climatic changes during the Holocene: case studies in northwestern China and southern Norway |
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| Authors: | HE Xiubin TANG Keli John A Matthews Geraint Owen |
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| Institution: | 1. Institute of Soil and Water Conservation, CAS, Yangling 712100, China|
2. Northwest SCI-Tech University of Agriculture and Forestry, Yangling 712100, China|
3. Department of Geography, University of Wales Swansea, UK |
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| Abstract: | Soil erosion assessment and prediction play critical roles in addressing problems associated with erosion control or soil conservation. The past dynamics of soil erosion can provide valuable information for us to understand the relations of soil erosion to environmental change and anthropogenic activity. The present paper has compared Holocene climatic changes in northwestern China with those in southern Norway, and investigated the past dynamics of erosion activity during the Holocene. Modern soil erosion on the Loess Plateau is a combination of the intensive natural erosion and human-induced erosion, the latter being four times greater than the former. Because of global warming and increasing human activities, climate on the Loess Plateau is becoming dryer and more unstable, causing an enhanced erosion problem and water scarcity. In the arctic-alpine region of southern Norway, however, the global warming and regional wetting caused expansion of the largest European ice cap. This has accentuated the erosion in that region, with a higher frequency of avalanches and debris flows. |
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| Keywords: | anthropogenic activity China climate changes erosion response Norway |
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