DocumentCode
527103
Title
Notice of Retraction
Soil erosion and organic carbon dynamics across steep hillslopes in the Hengduan Mountain Region of eastern Tibet, China
Author
Nie, X.J. ; Xu, K.K. ; Liu, H.J.
Author_Institution
Sch. of Surveying & Land Inf. Eng., Henan Polytech. Univ., Jiaozuo, China
Volume
3
fYear
2010
fDate
17-18 July 2010
Firstpage
389
Lastpage
392
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Little has been known concerning soil erosion distribution across steep hillslopes in the Hengduan Mountain Region of eastern Tibet. Three representative hillslopes were selected to determine dynamics of soil erosion and soil organic carbon (SOC) by using 137Cs technique in typical regions of soil erosion and water loss. Across the 39° hillslope in Yanduo valley of Lancang River watershed (Slope-1), soil erosion was severe in midslope and downslope positions, particularly in midslope positions where the 137Cs inventory of 0 Bq/m2 was found. Across the 39° hillslope in Zhayu valley of Yuqu River watershed (Slope-3), the most severe soil erosion happened in upslope positions where the 137Cs inventory of 0 Bq/m2 was also detected. The coefficients of variation (CVs) for 137Cs were extremely high at 106% and 91%, respectively, in Slope-1 and -3. Throughout the 20° hillslope in Maiyu pasture of Nujiang River watershed (Slope-2), soil erosion was severe with low 137Cs inventories ranging between 357-553 Bq/m2 (CV, 22%). These results show soil erosion processes across steep hillslopes differ in different regions of soil erosion and water loss. SOC distribution were in line with soil erosion across the three hillslopes, with moderate variability (CVs, 25-41%). Significant and positive correlations between SOC and 137Cs were found in the hillslopes. This imply that soil erosion affects SOC dynamic, c- using obvious SOC loss in severe eroded hillslope segments and increased spatial variability. Effective measures for soil and water conservation should be taken to weaken soil erosion risk and SOC loss in the fragile regions.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Little has been known concerning soil erosion distribution across steep hillslopes in the Hengduan Mountain Region of eastern Tibet. Three representative hillslopes were selected to determine dynamics of soil erosion and soil organic carbon (SOC) by using 137Cs technique in typical regions of soil erosion and water loss. Across the 39° hillslope in Yanduo valley of Lancang River watershed (Slope-1), soil erosion was severe in midslope and downslope positions, particularly in midslope positions where the 137Cs inventory of 0 Bq/m2 was found. Across the 39° hillslope in Zhayu valley of Yuqu River watershed (Slope-3), the most severe soil erosion happened in upslope positions where the 137Cs inventory of 0 Bq/m2 was also detected. The coefficients of variation (CVs) for 137Cs were extremely high at 106% and 91%, respectively, in Slope-1 and -3. Throughout the 20° hillslope in Maiyu pasture of Nujiang River watershed (Slope-2), soil erosion was severe with low 137Cs inventories ranging between 357-553 Bq/m2 (CV, 22%). These results show soil erosion processes across steep hillslopes differ in different regions of soil erosion and water loss. SOC distribution were in line with soil erosion across the three hillslopes, with moderate variability (CVs, 25-41%). Significant and positive correlations between SOC and 137Cs were found in the hillslopes. This imply that soil erosion affects SOC dynamic, c- using obvious SOC loss in severe eroded hillslope segments and increased spatial variability. Effective measures for soil and water conservation should be taken to weaken soil erosion risk and SOC loss in the fragile regions.
Keywords
erosion; geochemistry; geomorphology; rivers; soil; 137Cs inventory; 137Cs technique; China; Hengduan Mountain Region; Lancang River watershed; Maiyu pasture; Nujiang River watershed; Yanduo valley; Yuqu River watershed; Zhayu valley; coefficients of variation; downslope positions; eastern Tibet; hillslope segments; midslope positions; soil conservation; soil erosion distribution; soil erosion processes; soil erosion risk; soil organic carbon distribution; spatial variability; upslope positions; water conservation; water loss; Petroleum; Rivers; 137Cs technique; SOC; Soil erosion; Tibetan plateau;
fLanguage
English
Publisher
ieee
Conference_Titel
Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-7387-8
Type
conf
DOI
10.1109/ESIAT.2010.5568315
Filename
5568315
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