Your search found 11 records
1 Roetter, R. P.; Van Keulen, H.; Laborte, A. G.; Hoanh, Chu Thai; Van Laar, H. H. (Eds.) 2000. Systems research for optimizing future land use in South and Southeast Asia û Proceedings of the International Symposium SysNetÆ99: Systems research for optimizing future land use, held at the International Rice Research Institute, Los Banos, Philippines, 11-13 October, 1999. Los Banos, Philippines; Wageningen, Netherlands: IRRI; Wageningen University and Research Centre. xiii, 266p. (SysNet research paper series no.2 (2000))
Land use ; Planning ; Case studies ; Food production ; Decision support tools ; Animal husbandry ; Networks ; Irrigated farming ; Rice ; Crop yield / Asia / South Asia / South East Asia / India / Malaysia / Philippines / Vietnam / Haryana
(Location: IWMI-HQ Call no: 333 G570 ROE Record No: H030076)
2 van Ittersum, M.K.; Roetter, R. P.; van Keulen, H.; de Ridder, N.; Hoanh, Chu Thai; Laborte, A. G.; Aggarwal, P. K.; Ismail, A. B.; Tawang, A. 2004. A systems network (SysNet) approach for interactively evaluating strategic land use options at sub-national scale in South and South-East Asia. Journal of Land Use Policy, 21:101-113.
Land use ; Policy ; Evaluation ; Networks ; Natural resources ; Resource management ; Optimization ; Agriculture / India / Malaysia / Philippines / Vietnam / Haryana
(Location: IWMI-HQ Call no: P 6775 Record No: H034279)
3 Roetter, R. P.; Hoanh, Chu Thai; Laborte, A. G.; Van Keulen, H.; Van Ittersum, M. K.; Dreiser, C.; Van Diepen, C. A.; De Ridder, N.; Van Laar, H. H. 2005. Integration of systems network (SysNet) tools for regional land use scenario analysis in Asia. Environmental Modelling and Software, 20:291-307.
Land use ; Planning ; Analysis ; Decision support tools ; Computer models ; Simulation models ; GIS ; Information systems / Asia
(Location: IWMI-HQ Call no: IWMI 333 G570 ROE Record No: H035890)
4 Roetter, R. P.; Hoanh, Chu Thai; Wolf, J.; Abu Bakar, I.; Tawang, A.; van Ittersum, M. K.; Laborte, A. G.; de Ridder, N.; van den Berg, M. M. 2005. Modelling agricultural development options for the Kedah-Perlis region, Malaysia. Paper presented at the International Conference on Agricultural Research for Development, Swiss Federal Institute of Technology, ETH Zurich, Switzerland, 27-29 April 2005. 12p.
Land use ; Income ; Agricultural development / Malaysia / Kedah-Perlis Region / Muda Irrigation Scheme
(Location: IWMI-HQ Call no: IWMI 338.1 G714 ROE Record No: H038160)
5 Mai, V. T.; Van Keulen, H.; Hessel, R.; Ritsema, C.; Roetter, R. P.; Thai, P. 2007. Soil erosion in Quan Dinh watershed, a hilly area in Tam Duong district, north Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.17-33.
Erosion ; Measurement ; Watersheds ; Sedimentation ; Paddy fields ; Terraces ; Runoff ; Soils ; Land use / Vietnam / Tam Duong District / Red River Delta / Quan Dinh Watershed
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039971)
(3.22 MB)
6 Mai, V. T.; Hessel, R.; Van Keulen, H.; Ritsema, C.; Roetter, R. P.. 2007. Simulation of soil erosion in Quan Dinh watershed in Tam Duong district, north Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.35-60.
Erosion ; Simulation models ; Watersheds ; Paddy fields ; Terraces ; Infiltration ; Runoff ; Sedimentation / Vietnam / Tam Duong District / Quan Dinh watershed
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039972)
(3.22 MB)
7 Mai, V. T.; Van Keulen, H.; Roetter, R. P.; Bui, H. H.; Nguyen, V. B. 2007. Nitrogen leaching in intensive cropping systems in Tam Duong district, Red River Delta of Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.61-80.
Nitrogen ; Leaching ; Models ; Water balance ; Horticulture ; Vegetables ; Rice ; Flowers / Vietnam / Red River Delta / Tam Duong District
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039973)
(3.22 MB)
8 Mai, V. T.; Van Keulen, H.; Roetter, R. P.. 2007. Nitrogen leaching and nitrogen losses in rice-rice maize systems on sandy loam soil in Tam Duong, Red River Delta, Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.81-100.
Nitrogen ; Leaching ; Models ; Rice ; Cropping systems / Vietnam / Red River Delta / Tam Duong District
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039974)
(3.22 MB)
9 Mai, V. T.; Van Keulen, H.; Leopold, U.; Roetter, R. P.. 2007. Spatio-temporal prediction of nitrogen concentrations in shallow groundwater under intensive farming in northern Vietnam using regression-kriging. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: Experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.101-117.
Groundwater ; Nitrogen ; Water pollution ; Land use ; Regression analysis / Vietnam / Red River Delta / Tam Duong District
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039975)
(3.22 MB)
10 Mai, V. T.; Van Keulen, H.; Hoanh, Chu Thai; Hessel, R.; Roetter, R. P.. 2007. Spatial dynamics of nitrogen in shallow groundwater under intensive farming in northern Vietnam. In Mai, V. T. Soil erosion and nitrogen leaching in northern Vietnam: experimentation and modelling. Thesis. Wageningen, Netherlands: Wageningen University. pp.119-135.
Groundwater ; Nitrogen fertilizers ; Leaching ; Simulation models ; Calibration ; Water pollution ; Vegetables ; Percolation ; GIS / Vietnam / Tam Duong District
(Location: IWMI HQ Call no: D 631.45 G784 VAN Record No: H039976)
(3.22 MB)
11 Van Paassen, A.; Roetter, R. P.; Van Keulen, H.; Hoanh, Chu Thai. 2007. Can computer models stimulate learning about sustainable land use? Experience with LUPAS in the humid (sub-)tropics of Asia. Agricultural Systems, 94:874-887.
(Location: IWMI HQ Call no: IWMI 333 G570 VAN Record No: H040772)
In many rice-cultivating regions of east and south-east Asia, competition for land and water resources is strong and increasing. This calls for exploration of future technology and policy options in support of sustainable land (and water) use. Sustainable land use is a complex issue, that involves uncertainties about the dynamics of the biophysical system and the social system, as well as multiple perspectives. The capacity to identify options for sustainable and equitable development depends on the acquisition of knowledge and skills for (a) holistic analysis of the biophysical system dynamics, (b) analysis of the multiple positions, perceptions, values, beliefs and interests of the relevant stakeholders, (c) contemplation of the action needed to fill the gap between the desired socio-technical system and the perceived real-world situation. Learning is contextual and gradual: historically, agricultural scientists have moved from a reductionist to a holistic hard system perspective, while now slowly embracing the interpretive system perspective. Under the Ecoregional Initiative for the humid tropics of Asia, SysNet (1996–2000) trained scientists at four National Agricultural Research Systems (NARS) in trans-disciplinary analysis through development and application of the LUPAS (Land Use Planning and Analysis System) modelling framework. Aim was to develop a holistic land use analysis methodology for four different rice-cultivating regions. To ensure relevance for land use decision making, scientists organized meetings with planners and other stakeholders. Four NARS teams of 12–24 scientists acquired and/or increased expertise and skills outside their own disciplines, in modelling and improved data management, and learned to perform agro- ecological analyses. Regional planners were presented with region-specific data in support of formulation of area-specific technical and policy recommendations, and agricultural experts used LUPAS tools to extrapolate research results to other areas. Much learning was acquired within the technical–economic domain, but the exchange with stakeholders did not yet lead to a critical learning system approach. Nevertheless, NARS highly appreciated the new tools and knowledge, and made a significant step forward from mono-disciplinary to holistic agro-ecological analysis. Application of the LUPAS methodology has been expanded following finalization of the project, despite practical problems such as diminishing long-term funds and the high demand for IT people outside agriculture. NRM decision making demands reflexivity and skilful facilitation. In these processes, LUPAS modeling has a specific added value: it enhances long-term strategic thinking about sustainable land use and rural development issues.
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