Abstract
The great erosion control potential of agroforestry systems is generally recognized. However, insufficient data are available to be able to give absolute quantitative values for the erosion control potential of specific agroforestry systems or to compare their potential. To obtain such quantitative erosion data, long-term standard erosion measurements should be done in specific agroforestry systems. Such measurements may become very costly because the data need to be collected in a wide range of agroforestry systems on different sites over a long time. A further constraint is the reliability of such information: erosion figures may not be comparable because of discrepancy between the scale of measurement and the scale of the agroforestry system and the occurrence of different kinds of erosion. The methodology presented here enables a quick comparative estimation of the erosion (surface erosion, gully erosion and mass movement) control potential of different agroforestry systems. The erosion control value of agroforestry systems is related to their protective functions: the cover, barrier and soil reinforcement functions. The methodology involves identifying which features influence these different functions within a specific agroforestry system and subsequently evaluating the efficacy. The applicability of this methodology is demonstated with examples from various agroforestry systems in the Himalayan region.
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Bregman, L. Comparison of the erosion control potential of agroforestry systems in the Himalayan region. Agroforest Syst 21, 101–116 (1993). https://doi.org/10.1007/BF00705223
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DOI: https://doi.org/10.1007/BF00705223