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Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Bài báo - Tạp chí
363 (2014) Trang: 392-398
Tạp chí: Friend-Water 2014, Montpellier-France, 07-10 October 2014

Soil hydraulic properties (e.g. soil water retention and hydraulic conductivity) are very important for agricultural and environmental management practices. However, the direct field or laboratory measurement of these characteristics is costly, laborious and time-consuming. Therefore, their indirect estimation from available and easily measured soil properties has received great interest. Pedotransfer functions (PTFs) are being used as a well-known indirect method for determining hydraulic properties from basic soil properties (e.g. soil texture, bulk density and organic carbon content). In this study, we derived two types of PTFs, point and pseudo-continuous functions, for estimating moisture retention characteristics of soils in the Mekong Delta of Vietnam. The data of 120 samples were collected from agricultural fields distributed over the area. The results reveal that point PTFs outperformed pseudo-continuous functions. Moreover, the plastic limit, on top of classical predictors, appears to be a promising variable to predict soil water retention, especially in the wet moisture range.

Các bài báo khác
Số 11a (2009) Trang: 194-199
Tải về
(2014) Trang: 1
Tạp chí: 20th World Congress of Soil Science. Jeju, Korea. 8-13 June, 2014
 


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