Hydrological erosion and the occurrence of weeds in agro-forestry systems: the case of a coffee plantation with Cordia alliodora in Florencia Sur, Costa Rica
Hydrological erosion is defined as the process of detachment, transport and deposition of soil particles by water, and its fundamental forms are: laminar, frill, gulleys and mass movements. Agro-forestry systems (for example the combination of coffee, poro (Erythrina poeppigiana) and laurel (Cordia alliodora)) are viable management alternatives that minimize soil losses. The objectives of this thesis project are to determine erosion, run-off and the ocurrence of weeds below a variety of cover types in coffee plantations; and to detect the importance of the characteristics of the rain for soil, nutrient and water losses. The experiment will consist of three repetitions of each of the following treatments: 1- Coffee with management shade of E. poeppigiana; 2- Coffe with managed shade of the E. poeppigiana as well as Cordia alliodora; 3- Coffee in which the E. poeppigiana has been lopped at a height of 1.5 m in order to manage the plot without shade. After each storm the magnitude of soil and macronutrient (N, P, K) losses will determined. Likewise, the volume of run-off will be recorded.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
Turrialba (Costa Rica)
1979
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| Subjects: | COFFEA, CORDIA, EROSION, MALEZAS, TURRIALBA, COSTA RICA, |
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