Your search found 8 records
1 World Water Forum. 2003. The Third World Water Forum (WWF3): proceedings of sessions on Agriculture, Food and Water, Kyoto, Japan, 19-20 March 2003. Tokyo, Japan: Japanese Institute of Irrigation and Drainage (JIID). 448p.
Water resources ; Water management ; Irrigated farming ; Paddy fields ; Social welfare ; Monsoon climate ; Food production ; Water circulation ; Water use ; Water productivity ; Irrigation systems ; Irrigation water ; Irrigation management ; Participatory management ; Rice ; Water rates ; Pricing ; Humid tropics ; Virtual water ; Surface water ; Groundwater irrigation ; Ecology ; Water conservation ; Water pollution ; Water quality ; Case studies ; Sustainable development ; Water resources development ; Developing countries ; Rural areas ; Biodiversity ; Policy ; Fish ; Habitats / Asia / China / Cambodia / Taiwan / Japan / Thailand / Korea / Sri Lanka / Kumamoto Groundwater Basin / Pinga Oya / Tri Hita Karana Irrigation System
(Location: IWMI-HQ Call no: 333.91 G000 WOR Record No: H044225)
(0.45 MB)
2 World Water Forum. 2003. The Third World Water Forum (WWF3): proceedings of sessions on Agriculture, Food and Water, Kyoto, Japan, 19-20 March 2003. Tokyo, Japan: Japanese Institute of Irrigation and Drainage (JIID). 448p.
Water resources ; Water management ; Irrigated farming ; Paddy fields ; Social welfare ; Monsoon climate ; Food production ; Water circulation ; Water use ; Water productivity ; Irrigation systems ; Irrigation water ; Irrigation management ; Participatory management ; Rice ; Water rates ; Pricing ; Humid tropics ; Virtual water ; Surface water ; Groundwater irrigation ; Ecology ; Water conservation ; Water pollution ; Water quality ; Case studies ; Sustainable development ; Water resources development ; Developing countries ; Rural areas ; Biodiversity ; Policy ; Fish ; Habitats / Asia / China / Cambodia / Taiwan / Japan / Thailand / Korea / Sri Lanka / Kumamoto Groundwater Basin / Pinga Oya / Tri Hita Karana Irrigation System
(Location: IWMI-HQ Call no: 333.91 G000 WOR c2 Record No: H044229)
3 Qiang, Z.; Yuanhong, L.; Chengxiang, M. (Ed.) 2007. Rainwater harvesting. Hefei, China: Anhui Educational Publishing House. 423p.
Rainwater ; Water harvesting ; Water resources ; Water demand ; Water supply ; Water storage ; Tanks ; Water conservation ; Water quality ; Catchment areas ; Irrigation methods ; Economic analysis ; Tillage ; Mulching ; Irrigated farming ; Soil conservation ; Soil fertility ; Soil moisture ; Health hazards ; Humid tropics ; Social aspects ; Sustainability ; Community management ; Urban areas / China / Taiwan / Gansu
(Location: IWMI HQ Call no: 333.91 G000 QIA Record No: H046638)
(0.59 MB)
4 Barker, D. H.; Watson, A. J.; Sombatpanit, S.; Northcutt, B.; Maglinao, Amado R.; Ang, T. M. (Eds.) 2004. Ground and water bioengineering for erosion control and slope stabilization. Enfield, NH, USA: Science Publishers. 419p.
Biotechnology ; Watershed management ; Water conservation ; Erosion control ; Sloping land ; Soil stabilization ; Soil conservation ; Soil fertility ; Humid tropics ; Ecosystems ; Vegetation ; Root systems ; Nitrogen fixing trees ; Hedging plants ; Terrace cropping ; Mulching ; Indigenous knowledge ; Cultural methods ; Forest fires ; Highlands ; Dams ; Rivers ; Sedimentation ; Mudstone ; Granite soils ; Volcanic soils ; Mine spoil ; Landslides ; Hurricanes ; Sustainability ; Smallholders ; Cropping systems ; Cassava ; Road construction ; Case studies / Asia Pacific Region / USA / Philippines / China / Hong Kong / Nepal / India / Sri Lanka / Pakistan / Bangladesh / Vanuatu / Indonesia / South Western Taiwan / Korea / Papua New Guinea / South Africa / Maharashtra / Mangala Dam / Halsema Highway / Subic Freeport Expressway / Kosong / Rabaul
(Location: IWMI HQ Call no: 624.151363 G000 BAR Record No: H047280)
(0.43 MB)
5 Lacombe, Guillaume; Ribolzi, O.; de Rouw, A.; Pierret, A.; Latsachak, K.; Silvera, N.; Pham Dinh, R.; Orange, D.; Janeau, J.-L.; Soulileuth, B.; Robain, H.; Taccoen, A.; Sengphaathith, P.; Mouche, E.; Sengtaheuanghoung, O.; Tran Duc, T.; Valentin, C. 2015. Afforestation by natural regeneration or by tree planting: examples of opposite hydrological impacts evidenced by long-term field monitoring in the humid tropics. Hydrology and Earth System Sciences Discussions, 12:12615-12648. [doi: https://doi.org/10.5194/hessd-12-12615-2015]
Afforestation ; Plantations ; Tectona grandis ; Hydrological factors ; Humid tropics ; Ecosystem services ; Land use ; Soil conservation ; Water conservation ; Catchment areas ; Rain ; Runoff ; Models / Lao People s Democratic Republic / Vietnam / Houay Pano Catchment / Dong Cao Catchment
(Location: IWMI HQ Call no: e-copy only Record No: H047340)
http://www.hydrol-earth-syst-sci-discuss.net/12/12615/2015/hessd-12-12615-2015.pdf
https://vlibrary.iwmi.org/pdf/H047340.pdf
https://vlibrary.iwmi.org/pdf/H047340.pdf
(3.39 MB) (3.39 MB)
The humid tropics are exposed to an unprecedented modernization of agriculture involving rapid and highly-mixed land-use changes with contrasted environmental impacts. Afforestation is often mentioned as an unambiguous solution for restoring ecosystem services and enhancing biodiversity. One consequence of afforestation is the alteration of streamflow variability controlling habitats, water resources and flood risks. We demonstrate that afforestation by tree planting or by natural forest regeneration can induce opposite hydrological changes. An observatory including long-term field measurements of fine-scale land-use mosaics and of hydro-meteorological variables has been operating in several headwater catchments in tropical Southeast Asia since 2001. The GR2M water balance model repeatedly calibrated over successive 1 year periods, and used in simulation mode with specific rainfall input, allowed the hydrological effect of land-use change to be isolated from that of rainfall variability in two of these catchments in Laos and Vietnam. Visual inspection of hydrographs, correlation analyses and trend detection tests allowed causality between land-use changes and changes in seasonal flows to be ascertained. In Laos, the combination of shifting cultivation system (alternation of rice and fallow) and the gradual increase of teak tree plantations replacing fallow, led to intricate flow patterns: pluri-annual flow cycles induced by the shifting system, on top of a gradual flow increase over years caused by the spread of the plantation. In Vietnam, the abandonment of continuously cropped areas mixed with patches of tree plantations led to the natural re-growth of forest communities followed by a gradual drop in streamflow. Soil infiltrability controlled by surface crusting is the predominant process explaining why two modes of afforestation (natural regeneration or planting) led to opposite changes in flow regime. Given that commercial tree plantations will continue to expand in the humid tropics, careful consideration is needed before attributing to them positive effects on water and soil conservation.
6 Lacombe, Guillaume; Ribolzi, O.; de Rouw, A.; Pierret, A.; Latsachak, K.; Silvera, N.; Dinh, R. P.; Orange, D.; Janeau, J.-L.; Soulileuth, B.; Robain, H.; Taccoen, A.; Sengphaathith, P.; Mouche, E.; Sengtaheuanghoung, O.; Tran Duc, T.; Valentin, C. 2016. Contradictory hydrological impacts of afforestation in the humid tropics evidenced by long-term field monitoring and simulation modelling. Hydrology and Earth System Sciences, 20:2691-2704.
Humid tropics ; Hydrological factors ; Afforestation ; Natural regeneration ; Plantations ; Monitoring ; Simulation models ; Land use ; Land cover change ; Ecosystem services ; Forest conservation ; Catchment areas ; Rainfall-runoff relationships ; Stream flow ; Cropping systems ; Water conservation ; Soil conservation ; Soil surface properties ; Tectona grandis / Lao People's Democratic Republic / Vietnam / Houay Pano Catchment / Dong Cao Catchment
(Location: IWMI HQ Call no: e-copy only Record No: H047644)
http://www.hydrol-earth-syst-sci.net/20/2691/2016/hess-20-2691-2016.pdf
https://vlibrary.iwmi.org/pdf/H047644.pdf
https://vlibrary.iwmi.org/pdf/H047644.pdf
The humid tropics are exposed to an unprecedented modernisation of agriculture involving rapid and mixed land-use changes with contrasted environmental impacts. Afforestation is often mentioned as an unambiguous solution for restoring ecosystem services and enhancing biodiversity. One consequence of afforestation is the alteration of streamflow variability which controls habitats, water resources, and flood risks. We demonstrate that afforestation by tree planting or by natural forest regeneration can induce opposite hydrological changes. An observatory including long-term field measurements of fine-scale land-use mosaics and of hydrometeorological variables has been operating in several headwater catchments in tropical southeast Asia since 2000. The GR2M water balance model, repeatedly calibrated over successive 1-year periods and used in simulation mode with the same year of rainfall input, allowed the hydrological effect of land-use change to be isolated from that of rainfall variability in two of these catchments in Laos and Vietnam. Visual inspection of hydrographs, correlation analyses, and trend detection tests allowed causality between land-use changes and changes in seasonal streamflow to be ascertained. In Laos, the combination of shifting cultivation system (alternation of rice and fallow) and the gradual increase of teak tree plantations replacing fallow led to intricate streamflow patterns: pluri-annual streamflow cycles induced by the shifting system, on top of a gradual streamflow increase over years caused by the spread of the plantations. In Vietnam, the abandonment of continuously cropped areas combined with patches of mix-trees plantations led to the natural re-growth of forest communities followed by a gradual drop in streamflow. Soil infiltrability controlled by surface crusting is the predominant process explaining why two modes of afforestation (natural regeneration vs. planting) led to opposite changes in streamflow regime. Given that commercial tree plantations will continue to expand in the humid tropics, careful consideration is needed before attributing to them positive effects on water and soil conservation.
7 Hiwasaki, L.; Bolliger, L.; Lacombe, Guillaume; Raneri, J.; Schut, M.; Staal, S. (Eds.) 2016. Integrated systems research for sustainable smallholder agriculture in the Central Mekong: achievements and challenges of implementing integrated systems research. Hanoi, Vietnam: World Agroforestry Centre (ICRAF). Southeast Asia Regional Program. 178p.
Integrated management ; Sustainable agriculture ; Smallholders ; Farmers ; Humid tropics ; River basin management ; Crop management ; Plantation crops ; Livestock ; Soil fertility ; Soil conservation ; Water availability ; Rainwater ; Water harvesting ; Water storage ; Watersheds ; Living standards ; Land use ; Highlands ; Landscape ; Land degradation ; Land cover ; Nutrition ; Nongovernmental organizations ; Research institutions ; CGIAR ; Natural resources management ; Systems analysis ; Environmental management ; Marketing techniques ; Economic aspects ; Food security ; Food production ; Empowerment ; Research and development ; Agricultural research ; Gender ; Case studies / Southeast Asia / Myanmar / Lao People's Democratic Republic / Thailand / Cambodia / Vietnam / China / Yunnan / Nan Province / Xishuangbanna / Mekong River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H047858)
(3.82 MB)
8 Ma, X.; Lacombe, Guillaume; Harrison, R.; Xu, J.; van Noordwijk, M. 2019. Expanding rubber plantations in southern China: evidence for hydrological impacts. Water, 11(4): 1-15. [doi: https://doi.org/10.3390/w11040651]
Rubber industry ; Hydrological factors ; Agroforestry ; Catchment areas ; Humid tropics ; Impact assessment ; Land cover change ; Water balance ; Watershed management ; Rainfall ; Farmland ; Grasslands ; Slope / Southeast Asia / Southern China
(Location: IWMI HQ Call no: e-copy only Record No: H049180)
(2.26 MB) (2.26 MB)
While there is increasing evidence concerning the detrimental effects of expanding rubber plantations on biodiversity and local water balances, their implications on regional hydrology remain uncertain. We studied a mesoscale watershed (100 km2) in the Xishuangbanna prefecture, Yunnan Province, China. The influence of land-cover change on streamflow recorded since 1992 was isolated from that of rainfall variability using cross-simulation matrices produced with the monthly lumped conceptual water balance model GR2M. Our results indicate a statistically significant reduction in wet and dry season streamflow from 1992 to 2002, followed by an insignificant increase until 2006. Analysis of satellite images from 1992, 2002, 2007, and 2010 shows a gradual increase in the areal percentage of rubber tree plantations at the watershed scale. However, there were marked heterogeneities in land conversions (between forest, farmland, grassland, and rubber tree plantations), and in their distribution across elevations and slopes, among the studied periods. Possible effects of this heterogeneity on hydrological processes, controlled mainly by infiltration and evapotranspiration, are discussed in light of the hydrological changes observed over the study period. We suggest pathways to improve the eco-hydrological functionalities of rubber tree plantations, particularly those enhancing dry-season base flow, and recommend how to monitor them.
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