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| Title | GENeric Model of RIVER Flow (GEN-RIVER) | | Author | Ni'matul Khasanah and Meine van Noordwijk | | Year | 2008 | | Publisher | World Agroforestry Centre - ICRAF, SEA Regional Office | | City | Bogor, Indonesia | | Call Number | LE0106-08 |
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| Abstract: |
| Land cover change can significantly affect watershed functions through changes in the fraction of rainfall that reaches the ground, the subsequent pathways of water flow over and through the soil and the rate of water use by plants. Simple characteristics of the vegetation (monthly pattern of leaf biomass, influencing canopy interception and
transpiration, and ability to extracts water from deeper soil layers) and soil (especially compaction of the macropores in the soil that store water between 'saturation' and 'field capacity') can probably explain a major part of the impacts on river flow. Empirical assessment of the dynamics of water flows as a function of land cover change and soil properties takes time and resources, and needs to take temporal and spatial variation of rainfall into account. A model based on 'first principles' that integrates land cover change and change in soil properties as driving factors of changes in river flow can be used as a tool to explore scenario's of land use change, if it passes a 'validation' test against observed data. |
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GRP 6: Developing policies and incentives for multifunctional landscapes with trees that provide environmental services
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