Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet
The freeze-thaw (FT) erosion is a type of soil erosion like water erosion and wind erosion. Limited by many factors, the grading evaluation of soil FT erosion quantities is not well studied. Based on the comprehensive analysis of the evaluation indices of soil FT erosion, we for the first time utili...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/636521 |
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| author | Bo Kong Huan Yu |
| author_facet | Bo Kong Huan Yu |
| author_sort | Bo Kong |
| collection | DOAJ |
| description | The freeze-thaw (FT) erosion is a type of soil erosion like water erosion and wind erosion. Limited by many factors, the grading evaluation of soil FT erosion quantities is not well studied. Based on the comprehensive analysis of the evaluation indices of soil FT erosion, we for the first time utilized the sensitivity of microwave remote sensing technology to soil moisture for identification of FT state. We established an estimation model suitable to evaluate the soil FT erosion quantity in Silingco watershed wetland of Northern Tibet using weighted summation method of six impact factors including the annual FT cycle days, average diurnal FT phase-changed water content, average annual precipitation, slope, aspect, and vegetation coverage. Finally, with the support of GIS, we classified soil FT erosion quantity in Silingco watershed wetland. The results showed that soil FT erosion are distributed in broad areas of Silingco watershed wetland. Different soil FT erosions with different intensities have evidently different spatial and geographical distributions. |
| format | Article |
| id | doaj-art-bff86083d6c14837bfb10d9bcbe02810 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-bff86083d6c14837bfb10d9bcbe028102025-02-03T01:03:11ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/636521636521Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern TibetBo Kong0Huan Yu1Chinese Academy of Sciences of Mountain Hazards and Environment, Chengdu 610041, ChinaCollege of Earth Sciences, Chengdu University of Technology, Chengdu 610059, ChinaThe freeze-thaw (FT) erosion is a type of soil erosion like water erosion and wind erosion. Limited by many factors, the grading evaluation of soil FT erosion quantities is not well studied. Based on the comprehensive analysis of the evaluation indices of soil FT erosion, we for the first time utilized the sensitivity of microwave remote sensing technology to soil moisture for identification of FT state. We established an estimation model suitable to evaluate the soil FT erosion quantity in Silingco watershed wetland of Northern Tibet using weighted summation method of six impact factors including the annual FT cycle days, average diurnal FT phase-changed water content, average annual precipitation, slope, aspect, and vegetation coverage. Finally, with the support of GIS, we classified soil FT erosion quantity in Silingco watershed wetland. The results showed that soil FT erosion are distributed in broad areas of Silingco watershed wetland. Different soil FT erosions with different intensities have evidently different spatial and geographical distributions.http://dx.doi.org/10.1155/2013/636521 |
| spellingShingle | Bo Kong Huan Yu Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet The Scientific World Journal |
| title | Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet |
| title_full | Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet |
| title_fullStr | Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet |
| title_full_unstemmed | Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet |
| title_short | Estimation Model of Soil Freeze-Thaw Erosion in Silingco Watershed Wetland of Northern Tibet |
| title_sort | estimation model of soil freeze thaw erosion in silingco watershed wetland of northern tibet |
| url | http://dx.doi.org/10.1155/2013/636521 |
| work_keys_str_mv | AT bokong estimationmodelofsoilfreezethawerosioninsilingcowatershedwetlandofnortherntibet AT huanyu estimationmodelofsoilfreezethawerosioninsilingcowatershedwetlandofnortherntibet |