Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat
Optical analysing technique is recently developed for soil erosion evaluation with high resolution digital camera with use of software programs such as Optilab Pro. This paper reports results from a study in Dong Cao (Luong Son, Hoa Binh, Vietnam). Results were obtained on digital images analysis fr...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | vietnamita |
| Publicado: |
2008
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/40793 |
| _version_ | 1855518793228353536 |
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| author | Van Thiet, N. Pomel, S. Pham Quang, H. Tran Duc Toan Orange, Didier |
| author_browse | Orange, Didier Pham Quang, H. Pomel, S. Tran Duc Toan Van Thiet, N. |
| author_facet | Van Thiet, N. Pomel, S. Pham Quang, H. Tran Duc Toan Orange, Didier |
| author_sort | Van Thiet, N. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Optical analysing technique is recently developed for soil erosion evaluation with high resolution digital camera with use of software programs such as Optilab Pro. This paper reports results from a study in Dong Cao (Luong Son, Hoa Binh, Vietnam). Results were obtained on digital images analysis from two Sub-Catchment (W2, W3) with 28 plots. The results indicated a range of soil loss of 937 to 1553 kg per ha for W2 and 1225 to 2050 kg per ha for W3. The difference of soil erosion was mainly due to the difference of cover crops. Linear regression was made and it showed a very closed correlation between conventional and optical methoda in soil erosion study. In terms of the absolute value, optical method showed a higher value than the conventional one. The reason may be due to the optical theoretical method calculated the maximum soil moved from the site (eroded) while the conventional experimental method measured the soil erosion collected in experiment weir. In long term, with more data, this optical method should be further checked and recalibrated for other types of soil covers and soil topography for the use in larger scales. |
| format | Journal Article |
| id | CGSpace40793 |
| institution | CGIAR Consortium |
| language | Vietnamese |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| record_format | dspace |
| spelling | CGSpace407932023-02-15T12:13:05Z Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat Optical analysing techniques for soil erosion evaluation. In Vietnamese Van Thiet, N. Pomel, S. Pham Quang, H. Tran Duc Toan Orange, Didier erosion watersheds catchment areas Optical analysing technique is recently developed for soil erosion evaluation with high resolution digital camera with use of software programs such as Optilab Pro. This paper reports results from a study in Dong Cao (Luong Son, Hoa Binh, Vietnam). Results were obtained on digital images analysis from two Sub-Catchment (W2, W3) with 28 plots. The results indicated a range of soil loss of 937 to 1553 kg per ha for W2 and 1225 to 2050 kg per ha for W3. The difference of soil erosion was mainly due to the difference of cover crops. Linear regression was made and it showed a very closed correlation between conventional and optical methoda in soil erosion study. In terms of the absolute value, optical method showed a higher value than the conventional one. The reason may be due to the optical theoretical method calculated the maximum soil moved from the site (eroded) while the conventional experimental method measured the soil erosion collected in experiment weir. In long term, with more data, this optical method should be further checked and recalibrated for other types of soil covers and soil topography for the use in larger scales. 2008 2014-06-13T14:48:26Z 2014-06-13T14:48:26Z Journal Article https://hdl.handle.net/10568/40793 vi Limited Access Van Thiet, N.; Pomel, S.; Pham Quang, H.; Toan, T. D.; Orange, Didier. 2008. Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat. [Optical analysing techniques for soil erosion evaluation. In Vietnamese] Sciences and Technology Journal of Agriculture and Rural Development, 7(7):42-46. |
| spellingShingle | erosion watersheds catchment areas Van Thiet, N. Pomel, S. Pham Quang, H. Tran Duc Toan Orange, Didier Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title | Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title_full | Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title_fullStr | Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title_full_unstemmed | Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title_short | Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat |
| title_sort | ung dung phuong phap phan tich hinh anh de danh gia xoi mon dat |
| topic | erosion watersheds catchment areas |
| url | https://hdl.handle.net/10568/40793 |
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