Your search found 23 records
1 Mekong River Commission Secretariat. 1997. Mekong River Commission - Towards sustainable development. Water Resources Journal, 194:7-13.
River basin development ; International cooperation ; Development projects ; Development plans ; Resource allocation ; Sustainability / South East Asia / Cambodia / Laos / Vietnam / Thailand / Mekong River / Lower Mekong Basin
(Location: IWMI-HQ Call no: PER Record No: H021541)
2 Abernethy, C. L.; Heim, F. (Eds.) 1998. Institutional reform and co-operation in irrigated agriculture, with special reference to Lao PDR and Vietnam: Proceedings of the International Workshop held from April 27 to May 2, 1998 in Luang Prabang, Lao PDR and the two national meetings held on May 7, 1998 in Hanoi, Vietnam and May 8, 1998 in Vientiane, Lao PDR. Feldafing, Germany: ZEL. Food and Agriculture Development Centre. 333p.
Irrigated farming ; Institution building ; Institutional constraints ; Irrigation management ; Sustainability ; International cooperation ; Water policy ; Small scale systems ; Privatization ; Legislation ; Case studies / Laos / Vietnam / Asia / Europe / USA / Middle East / Indonesia / Malaysia / Philippines / Thailand / Lower Mekong Basin
(Location: IWMI-HQ Call no: 631.7.3 G708 ABE Record No: H023318)
3 Otsubo, Y.; Ito, T.; Lida, H. 2000. Inundation Mapping Project in the Lower Mekong Basin aiming at sustainable agricultural and rural development. In ICID, Asian Regional Workshop on Sustainable Development of Irrigation and Drainage for Rice Paddy Fields - Proceedings, July 24th to 28th, 2000, Tokyo Japan. Tokyo, Japan: ICID. Japanese National Committee. pp.317-323.
River basins ; Mapping ; Remote sensing ; GIS ; Paddy fields ; Rice ; Sustainable agriculture ; Rural development / South East Asia / Laos / Cambodia / Vietnam / Thailand / Lower Mekong Basin
(Location: IWMI-HQ Call no: 631.7.2 G570 ICI Record No: H027898)
4 Otsubo, Y.; Ito, T.; Iida, H. 2001. Time-series inundation mapping in the Lower Mekong Basin using RADARSAT-SAR images. Rural and Environmental Engineering, 41:57-69.
River basins ; Flood water ; Mapping ; Remote sensing ; Satellite surveys ; Precipitation ; GIS / Laos / Cambodia / Vietnam / Thailand / Lower Mekong Basin
(Location: IWMI-HQ Call no: PER Record No: H029269)
5 Binson, B. 1983. The Lower Mekong Basin development. In Zaman, M. (Ed.), River basin development: Proceedings of the National Symposium on River Basin Development 4-10 December 1981, Dacca, Bangladesh Dublin, Ireland: Tycooly International Publishing. pp.69-84.
(Location: IWMI-HQ Call no: 333.91 G000 ZAM Record No: H035665)
6 Mekong River Commission. 2003. People and the environment atlas of the Lower Mekong Basin. Phnom Penh, Cambodia: Mekong River Commission. 1 CD.
(Location: IWMI-HQ Call no: CD Col Record No: H037324)
This CD-ROM presents interactive data on the environment and socio-economic conditions of the four Lower Basin countries of Cambodia, Lao PDR, Thailand, and Viet Nam.
7 Hoanh, Chu Thai; Facon, T.; Thuon, T.; Bastakoti, R. C.; Molle, Francois; Phengphaengsy, F. 2009. Irrigation in the Lower Mekong Basin countries: the beginning of a new era? In Molle, Francois; Foran, T.; Kakonen, M. (Eds.). Contested waterscapes in the Mekong region: hydropower, livelihoods and governance. London, UK: Earthscan. pp.143-171.
River basins ; Irrigation management ; Farming systems ; Rice ; Irrigated land ; Irrigation schemes ; Rehabilitation ; Modernization ; Participatory management ; Farmers ; Cost recovery ; Water policy / Laos / Cambodia / Thailand / Vietnam / Lower Mekong Basin / Stung Chinit Irrigation Scheme
(Location: IWMI HQ Call no: 333.91 G800 MOL Record No: H042241)
(0.96 MB)
8 Lacombe, Guillaume; Pierret, Alain; Hoanh, Chu Thai; Sengtaheuanghoung, O. 2010. Hydrological consequences of armed conflicts and massive migrations in the Lower Mekong Basin over the second half of the 20th Century. [Abstract only]. Paper presented at the Hydrology Conference 2010, San Diego, California, USA, 11-13 October 2010. 2p.
(Location: IWMI HQ Call no: e-copy only Record No: H043383)
(0.17 MB)
We investigated whether the Vietnam War bombing and conflict-induced exodus could have altered the hydrological behaviour of the Mekong Basin. The rainfall-runoff relationship was analysed in 2 catchments over period 1960-2004 (figure 1). In each catchment, rainfall and runoff time series together with potential evapotranspiration were used as input to run GR2M monthly water balance model whose robustness is adapted to data-scarce conditions. The space-time distribution of densities of bombs dropped during the war was derived from UXO-NRA database which records the amount and type of ordnances and the aircraft types and numbers per US Air Force sorties from 1965 to 1973. Bomb-induce damages inflicted on vegetation was estimated using the Bomb Damage Assessment Report. We found that the delivery of about 1.5 million tons of high-explosive ordnances likely caused profound damage to one third of the southern catchment whose runoff increased by >365 mm/year during at least 4 years after bombing climaxed in 1972. The magnitude of this increase was found to be consistent with usual tropical forest transpiration rates over the bomb-cleared surface area. No hydrological change was observed during this period in the 30-fold-less bombed catchment located in the North. From 1995 onward, southern and northern catchments’ runoff productions are significantly higher and lower than in pre-war conditions, respectively. These hydrological shifts are most likely attributed to permanent changes in the vegetation cover, either denser in the northern sub-catchment (in response to the extensive abandonment of cultivated lands) or sparser in the southern catchment (as a result of bomb-degraded soil conditions). These results illustrate the high responsiveness of flow regime to forest cover changes in tropical areas where deforestation is expected to perpetuate at a high rate over the coming decades.
9 Mekong River Commission (MRC). 2002. The state of agriculture and forestry in the Lower Mekong Basin. Phnom Penh, Cambodia: Mekong River Commission (MRC). 14p. (Mekong River Commission Basin Development Plan 009)
River basins ; Forestry ; Land use ; Rice ; Pesticides ; Livestock ; Social aspects ; Agricultural policy / South East Asia / Cambodia / Laos / Thailand / Vietnam / Lower Mekong Basin
(Location: IWMI HQ Call no: P 8090 Record No: H044422)
10 Johnson, J. H. 1983. Preliminary appraisal of the hydrogeology of the Lower Mekong Basin: a study supported by UNESCO. Draft report prepared for the Interim Committee for Coordination of Investigations of the Lower Mekong Basin, Lao PDR, Thailand and Vietnam. 101p. + annexes.
River basins ; Hydrogeology ; Projects ; Geology ; Topography ; Catchment areas ; Valleys ; Water supply ; Water quality ; Downstream ; Aquifers ; Drainage ; Deltas / Laos / Thailand / Vietnam / Lower Mekong Basin
(Location: IWMI HQ Call no: e copy SF Record No: H044479)
11 Reis, J.; Lacombe, Guillaume; Hoanh, Chu Thai; McCartney, Matthew; Douangsavanh, S.; Leticia, M.; Teoh, S. J.; Kam, S. P.; Senaratna Sellamuttu, Sonali. 2011. Adjusting hydropower dam operation to compliment livelihood strategies in the Lower Mekong Basin. [Abstract only]. Paper presented at the 3rd International Forum on Water and Food, Tshwane, South Africa, 14-17 November 2011. 2p.
Water resources ; Water power ; Dams ; River basins ; Aquaculture ; Agricultural production / South East Asia / Laos / Lower Mekong Basin / Nam Gnouang Dam
(Location: IWMI HQ Call no: e-copy only Record No: H044564)
http://cgspace.cgiar.org/bitstream/handle/10568/10450/MLiSe001_Final_RD_1210.pdf?sequence=3
https://vlibrary.iwmi.org/pdf/H044564.pdf
https://vlibrary.iwmi.org/pdf/H044564.pdf
(0.51 MB) (518.64KB)
12 Ojendal, J.; Hansson, S.; Hellberg, S. (Eds.) 2012. Politics and development in a transboundary watershed: the case of the Lower Mekong Basin. Dordrecht, Netherlands: Springer. 211p.
Water management ; International waters ; International cooperation ; Watershed management ; River basin development ; Water resources development ; Water sharing ; Political aspects ; Water policy ; Water governance ; Flow discharge ; Water supply ; Case studies ; Impact assessment ; Ecosystems ; Water power / South East Asia / Lower Mekong Basin
(Location: IWMI HQ Call no: 333.91 G000 OJE Record No: H045806)
(0.37 MB)
13 Mekong River Commission (MRC). 2003. Water used for agriculture in Lower Mekong Basin: basin development plan. Phnom Penh, Cambodia: Mekong River Commission (MRC). 57p.
Agricultural production ; Water use ; Water consumption ; Water quality ; River basins ; Crop production ; Agricultural development ; Public policy ; Rice ; Seasonality ; Soils ; Fertilizers ; Pesticides ; Irrigation water / Laos / Thailand / Cambodia / Vietnam / Lower Mekong Basin
(Location: IWMI HQ Call no: P 8143 Record No: H046171)
(0.33 MB)
14 Glemet, R.; Elbert, E.; Navy, H.; Singhanouvong, D. 2014. Transboundary fish trade in the Lower Mekong Basin: impacts on fisheries and rural employment in Cambodia, Lao PDR, and Thailand. In Lebel, L.; Hoanh, Chu Thai; Krittasudthacheewa, C.; Daniel, R. (Eds.). Climate risks, regional integration and sustainability in the Mekong region. Petaling Jaya, Malaysia: Strategic Information and Research Development Centre (SIRDC); Stockholm, Sweden: Stockholm Environment Institute (SEI). pp.165-182.
International trade ; Fisheries ; Aquaculture ; Rural areas ; Employment ; Policy ; Economic aspects ; Income ; Markets ; Exports ; Household consumption ; Villages / Cambodia / Lao People s Democratic Republic / Thailand / Lower Mekong Basin
(Location: IWMI HQ Call no: IWMI, e-copy SF Record No: H046916)
(1.87 MB)
15 Sok, S.; Yu, X. 2015. Adaptation, resilience and sustainable livelihoods in the communities of the Lower Mekong Basin, Cambodia. International Journal of Water Resources Development, 31(4):575-588. [doi: https://doi.org/10.1080/07900627.2015.1012659]
Community development ; Sustainability ; Living standards ; Rural poverty ; Food shortages ; Natural disasters ; Adaptation ; Resilience ; Households ; Assets ; Social aspects ; Natural resources ; Financial situation ; Agricultural production ; Villages / Cambodia / Lower Mekong Basin / Stung Treng / Kompong Cham / Prey Veng / Ou Svay / Ro’ang / Kaoh Roka
(Location: IWMI HQ Call no: e-copy only Record No: H047560)
(0.59 MB)
This paper analyses key contributors to sustainable livelihoods in the Lower Mekong Basin (LMB), Cambodia, by focusing upon villagers’ access to assets, adaptation to shock and stress, and their degree of resilience to declines in natural resources. The study reveals that their access to the five assets for sustainable livelihoods is limited; that their capacity to adapt to shock and stress is low due to floods, drought and high food prices; and that their resilience to declines in natural resources is weak. Improvement in their capacity to adapt and in their resilience will be influenced by the degree to which they can access human, physical and social assets.
16 Lyon, S. W.; King, K.; Polpanich, O.; Lacombe, Guillaume. 2017. Assessing hydrologic changes across the Lower Mekong Basin. Journal of Hydrology: Regional Studies, 12:303-314. [doi: https://doi.org/10.1016/j.ejrh.2017.06.007]
Hydrological factors ; Catchment areas ; River basins ; Models ; Natural resources ; Forest cover ; Deforestation ; Rainfall-runoff relationships ; Wet season ; Dry season ; Evapotranspiration ; Rice ; Land cover ; Stream flow ; Precipitation / Southeast Asia / Lao People's Democratic Republic / Thailand / Cambodia / Vietnam / Lower Mekong Basin
(Location: IWMI HQ Call no: e-copy only Record No: H048179)
http://ac.els-cdn.com/S2214581816302348/1-s2.0-S2214581816302348-main.pdf?_tid=fbab4f94-9de3-11e7-b294-00000aacb362&acdnat=1505898996_0cb0f1fe6d4c4991593d85d0efcf7e92
https://vlibrary.iwmi.org/pdf/H048179.pdf
https://vlibrary.iwmi.org/pdf/H048179.pdf
(906 KB)
Study region : In this study, 33 catchments across the Lower Mekong Basin in Southeast Asia are examined to detect historical changes in their hydrological response via a model-based methodology.
Study focus : Intensive development over the past half century across Southeast Asia’s Lower Mekong Basin has inevitably affected natural resources. Large areas have been converted from forests for subsistence and commercial agriculture, and urban development. We implement an innovative approach to screen hydrologic data for detecting impacts of such large-scale changes on hydrological response. In a first step, temporal changes in the rainfall-runoff relationship were assessed using the parsimonious, two-parameter GR2M hydrological model. In a second step, a distribution-free statistical test was applied to detect whether significant changes have occurred in the wet season (high flow) and dry season (low flow) conditions.
New hydrological insights for the region : Our results indicate that the majority of catchments (64% of those considered) with sufficiently long data records exhibited no discernable trends in hydrological response. Those catchments that did exhibit significant trends in hydrological response were fairly evenly split between increasing trends (between 21% and 24%) and decreasing trends (between 15% and 12%) with time. There was a lack of evidence that these changes where brought about by shifts in precipitation or potential evapotranspiration; however, catchments exhibiting significant increasing trends in hydrological behavior were found to have different land cover compositions (lower percentage of forest coverage and subsequently higher paddy rice coverage) than those exhibiting significant decreasing trends. The approach presented here provides a potentially valuable screening method to highlight regions for further investigation of improved mechanistic understanding. Without this connection, we might be blind to future hydrological shifts that can have significant impact on development.
Study focus : Intensive development over the past half century across Southeast Asia’s Lower Mekong Basin has inevitably affected natural resources. Large areas have been converted from forests for subsistence and commercial agriculture, and urban development. We implement an innovative approach to screen hydrologic data for detecting impacts of such large-scale changes on hydrological response. In a first step, temporal changes in the rainfall-runoff relationship were assessed using the parsimonious, two-parameter GR2M hydrological model. In a second step, a distribution-free statistical test was applied to detect whether significant changes have occurred in the wet season (high flow) and dry season (low flow) conditions.
New hydrological insights for the region : Our results indicate that the majority of catchments (64% of those considered) with sufficiently long data records exhibited no discernable trends in hydrological response. Those catchments that did exhibit significant trends in hydrological response were fairly evenly split between increasing trends (between 21% and 24%) and decreasing trends (between 15% and 12%) with time. There was a lack of evidence that these changes where brought about by shifts in precipitation or potential evapotranspiration; however, catchments exhibiting significant increasing trends in hydrological behavior were found to have different land cover compositions (lower percentage of forest coverage and subsequently higher paddy rice coverage) than those exhibiting significant decreasing trends. The approach presented here provides a potentially valuable screening method to highlight regions for further investigation of improved mechanistic understanding. Without this connection, we might be blind to future hydrological shifts that can have significant impact on development.
17 Sabo, J. L.; Ruhi, A.; Holtgrieve, G. W.; Elliott, V.; Arias, M. E.; Ngor, P. B.; Rasanen, T. A.; Nam, S. 2017. Designing river flows to improve food security futures in the Lower Mekong Basin. Science, 358(6368):1-11. [doi: https://doi.org/10.1126/science.aao1053]
River basins ; Stream flow ; Discharges ; Food security ; Inland fisheries ; Forecasting ; Dams ; Water power ; Hydrological factors ; Models ; Ecological factors ; Floodplains ; Hydrography / Cambodia / Lower Mekong Basin / Tonle Sap Lake
(Location: IWMI HQ Call no: e-copy only Record No: H048520)
(1.57 MB)
Rivers provide unrivaled opportunity for clean energy via hydropower, but little is known about the potential impact of dam-building on the food security these rivers provide. In tropical rivers, rainfall drives a periodic flood pulse fueling fish production and delivering nutrition to more than 150 million people worldwide. Hydropower will modulate this flood pulse, thereby threatening food security. We identified variance components of the Mekong River flood pulse that predict yield in one of the largest freshwater fisheries in the world. We used these variance components to design an algorithm for a managed hydrograph to explore future yields. This algorithm mimics attributes of discharge variance that drive fishery yield: prolonged low flows followed by a short flood pulse. Designed flows increased yield by a factor of 3.7 relative to historical hydrology. Managing desired components of discharge variance will lead to greater efficiency in the Lower Mekong Basin food system.
18 Ribolzi, O.; Lacombe, Guillaume; Pierret, A.; Robain, H.; Sounyafong, P.; de Rouw, A.; Soulileuth, B.; Mouche, E.; Huon, S.; Silvera, N.; Latxachak, K. O.; Sengtaheuanghoung, O.; Valentin, C. 2018. Interacting land use and soil surface dynamics control groundwater outflow in a montane catchment of the lower Mekong basin. Agriculture, Ecosystems and Environment, 268: 90-102. [doi: https://doi.org/10.1016/j.agee.2018.09.005]
Hydrology ; Land use ; Soil surface properties ; Soil crusts ; Groundwater recharge ; Flow discharge ; Water level ; Water table ; Catchment areas ; Stream flow ; Models ; Evapotranspiration ; Rain ; Runoff ; Infiltration ; River basins / China / Myanmar / Lao People's Democratic Republic / Thailand / Cambodia / Vietnam / Lower Mekong Basin
(Location: IWMI HQ Call no: e-copy only Record No: H048984)
Groundwater contribution to streamflow sustains biodiversity and enhances ecosystem services, especially under monsoon-driven climate where stream baseflow is often the only available water resource during the dry season. We assessed how land use change influences streamflow and its groundwater contribution in a small headwater catchment subject to shifting cultivation in Montane Southeast Asia. Continuous time series of rainfall, reference evapotranspiration, groundwater level, stream discharge and electrical conductivity (EC) of surface and groundwater were monitored from 2002 to 2007. With the rainfall-runoff model GR4J, we investigated temporal changes in the hydrological behaviour of the study catchment to verify consistencies with observed land use change. An EC-based hydrograph separation method allowed estimating the groundwater contribution to 104 stormflow events. Mean soil surface crusting rates corresponding to each of the nine land uses identified in the catchment were determined using 236 standard 1-m2 micro-plots. Mean plant cover for each land use was assessed in 10 × 10-m2 plots. Bedrock topography and soil layers’ structure were assessed by electrical resistivity tomography to determine pathways of subsurface storm flows. Our results indicate that an increase in the catchment's areal percentage of fallow from 33% to 71% led to a decrease in the annual runoff coefficient from 43% to 26%. The concurrent reduction of soil crusting rate over the catchment, from 48% to 30%, increased rainwater infiltration. Consecutively, groundwater contribution to storm streamflow increased from 83% to 94%, highlighting the protective role of a dense vegetation cover against flash floods. The overall reduction of the annual basin water yield for inter-storm streamflow from 450 to 185 mm suggests that the potential gain in groundwater recharge was offset by the increased root water uptake for evapotranspiration, as confirmed by the drop in the groundwater level. This analysis illustrates how two different land uses with opposite impacts on soil permeability (i/ extensive soil surface crusting under annual crops resulting in limited runoff infiltration or ii/ fallow regrowth promoting both infiltration and evapotranspiration) both inhibit groundwater recharge. The maintenance of strips of fallow buffers between annual crop plots can slow down runoff and locally promote infiltration and groundwater recharge while limiting evapotranspiration.
19 Brunner, J.; Carew-Reid, J.; Glemet, R.; McCartney, Matthew; Riddell, P. 2019. Measuring, understanding and adapting to nexus trade-offs in the Sekong, Sesan and Srepok transboundary river basins. Hanoi, Vietnam: International Union for Conservation of Nature (IUCN). 70p.
River basin development ; International waters ; Water resources ; Renewable energy ; Food security ; Nexus ; Assessment ; Development projects ; Hydropower ; Dams ; Investment ; Agriculture ; Fisheries ; Forests ; Mining ; Public health / Cambodia / Lao People's Democratic Republic / Vietnam / Lower Mekong Basin / Sekong River Basin / Sesan River Basin / Srepok River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H049306)
https://portals.iucn.org/library/sites/library/files/documents/2019-024-En.pdf
https://vlibrary.iwmi.org/pdf/H049306.pdf
https://vlibrary.iwmi.org/pdf/H049306.pdf
(3.82 MB) (3.82 MB)
20 Lynch, A. J.; Baumgartner, L. J.; Boys, C. A.; Conallin, J.; Cowx, I. G.; Finlayson, C. M.; Franklin, P. A.; Hogan, Z.; Koehn, J. D.; McCartney, Matthew P.; O’Brien, G.; Phouthavong, K.; Silva, L. G. M.; Tob, C. A.; Valbo-Jorgensen, J.; Vu, A. V.; Whiting, L.; Wibowo, A.; Duncan, P. 2019. Speaking the same language: can the Sustainable Development Goals translate the needs of inland fisheries into irrigation decisions? Marine and Freshwater Research, 70(9):1211-1228. [doi: https://doi.org/10.1071/MF19176]
Inland fisheries ; Irrigated farming ; Sustainable Development Goals ; Food security ; Irrigation systems ; Aquatic ecosystems ; Ecosystem services ; Ecological factors ; Social aspects ; Living standards ; Integrated management ; Decision making ; River basins ; Case studies / South East Asia / Australia / Lower Mekong Basin / Murray-Darling Basin
(Location: IWMI HQ Call no: e-copy only Record No: H049308)
(1.36 MB) (1.36 MB)
Irrigated agriculture and inland fisheries both make important contributions to food security, nutrition, livelihoods and wellbeing. Typically, in modern irrigation systems, these components operate independently. Some practices, commonly associated with water use and intensification of crop production can be in direct conflict with and have adverse effects on fisheries. Food security objectives may be compromised if fish are not considered in the design phases of irrigation systems. The 2030 Agenda for Sustainable Development provides a framework that can serve as a backdrop to help integrate both sectors in policy discussions and optimise their contributions to achieving the Sustainable Development Goals (SDGs). Inland fisheries systems do play an important role in supporting many SDG objectives, but these contributions can sometimes be at odds with irrigated agriculture. Using case studies of two globally important river catchments, namely the Lower Mekong and Murray–Darling basins, we highlight the conflicts and opportunities for improved outcomes between irrigated agriculture and inland fisheries. We explore SDG 2 (Zero Hunger) as a path to advance our irrigation systems as a means to benefit both agriculture and inland fisheries, preserving biodiversity and enhancing the economic, environmental and social benefits they both provide to people.
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