Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins
By altering evapotranspiration and influencing how water is routed and stored in a basin, natural and agrarian ecosystems affect river flow. To quantify the impact of ecosystems on streamflow in two large river basins in Asia and Africa, simple statistical relationships were calculated, enabling flow characteristics to be ascertained from basic catchment features. This approach allows the impact of specified land-use change on streamflow to be determined. For example, it shows that extending paddy areas in the Mekong River Basin reduces downstream low flows, while conversion of forests to crops increases the magnitude of downstream floods in the Volta River Basin. The approach could assist river basin planners to better account for flow-related ecosystem services.
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Format: | Report biblioteca |
Language: | English |
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International Water Management Institute
2016
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Subjects: | ecosystems, flow rate, rain, temperature, floodplains, geomorphology, geography, models, land cover, land use, forest cover, water resources, soil, wetlands, river basins, stream flow, downstream control, catchment areas, paddy fields, policy making, planning, impact assessment, living standards, runoff, |
Online Access: | https://hdl.handle.net/10568/78376 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub166/rr166.pdf https://doi.org/10.5337/2016.202 |
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dig-cgspace-10568-783762023-12-08T19:36:04Z Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins Lacombe, Guillaume McCartney, Matthew P. ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff By altering evapotranspiration and influencing how water is routed and stored in a basin, natural and agrarian ecosystems affect river flow. To quantify the impact of ecosystems on streamflow in two large river basins in Asia and Africa, simple statistical relationships were calculated, enabling flow characteristics to be ascertained from basic catchment features. This approach allows the impact of specified land-use change on streamflow to be determined. For example, it shows that extending paddy areas in the Mekong River Basin reduces downstream low flows, while conversion of forests to crops increases the magnitude of downstream floods in the Volta River Basin. The approach could assist river basin planners to better account for flow-related ecosystem services. 2016 2016-12-19T06:34:13Z 2016-12-19T06:34:13Z Report Lacombe, Guillaume; McCartney, Matthew. 2016. Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins. Colombo, Sri Lanka: International Water Management Institute (IWMI).. 40p. (IWMI Research Report 166) doi: 10.5337/2016.202 978-92-9090-833-3 https://hdl.handle.net/10568/78376 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub166/rr166.pdf https://doi.org/10.5337/2016.202 en IWMI Research Report Copyrighted; all rights reserved Open Access application/pdf International Water Management Institute |
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ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff |
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ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff Lacombe, Guillaume McCartney, Matthew P. Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
description |
By altering evapotranspiration and influencing how water is routed and stored in a basin, natural and agrarian ecosystems affect river flow. To quantify the impact of ecosystems on streamflow in two large river basins in Asia and Africa, simple statistical relationships were calculated, enabling flow characteristics to be ascertained from basic catchment features. This approach allows the impact of specified land-use change on streamflow to be determined. For example, it shows that extending paddy areas in the Mekong River Basin reduces downstream low flows, while conversion of forests to crops increases the magnitude of downstream floods in the Volta River Basin. The approach could assist river basin planners to better account for flow-related ecosystem services. |
format |
Report |
topic_facet |
ecosystems flow rate rain temperature floodplains geomorphology geography models land cover land use forest cover water resources soil wetlands river basins stream flow downstream control catchment areas paddy fields policy making planning impact assessment living standards runoff |
author |
Lacombe, Guillaume McCartney, Matthew P. |
author_facet |
Lacombe, Guillaume McCartney, Matthew P. |
author_sort |
Lacombe, Guillaume |
title |
Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
title_short |
Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
title_full |
Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
title_fullStr |
Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
title_full_unstemmed |
Evaluating the flow regulating effects of ecosystems in the Mekong and Volta river basins |
title_sort |
evaluating the flow regulating effects of ecosystems in the mekong and volta river basins |
publisher |
International Water Management Institute |
publishDate |
2016 |
url |
https://hdl.handle.net/10568/78376 https://www.iwmi.cgiar.org/Publications/IWMI_Research_Reports/PDF/pub166/rr166.pdf https://doi.org/10.5337/2016.202 |
work_keys_str_mv |
AT lacombeguillaume evaluatingtheflowregulatingeffectsofecosystemsinthemekongandvoltariverbasins AT mccartneymatthewp evaluatingtheflowregulatingeffectsofecosystemsinthemekongandvoltariverbasins |
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