water use; land use optimization; climate change; life cycle analysis; farm decision; adaptation; agriculture
Lehmann N, Finger R, Klein T, Calanca P, Walter A (2013), Adapting crop management practices to climate change: Modeling optimal solutions at the field scale, in Agricultural Systems
, 117, 55-65.
Fuhrer Jürg, Holzkämper Annelie, Klein Tommy, Tendall Danielle, Lehmann Niklaus (2013), Wasser und Schweizer Landwirtschaft - das Projekt AGWAM im rahmen des NFP61
Semonov MA, Pilkington-Bennett S, Calanca P (2013), Validation of ELPIS 1980−2010 baseline scenarios using the observed European Climate Assessment data set, in Climate Research
, 57(1), 1-9.
Lehmann Niklaus, Finger Robert, Klein Tommy, Calanca Pierluigi (2013), Sample size requirements for assessing statistical moments of simulated crop yield distributions, in Agriculture (MDPI)
, 3(2), 210-220.
Finger Robert, Lehmann Niklaus (2012), Modeling the sensitivity of outdoor recreation activities to climate change, in Climate Research
, 51(3), 229-236.
Fuhrer Jürg, Jasper Karsten (2012), Demand and Supply of Water for Agriculture: Influence of Topography and Climate in Pre-Alpine, Mesoscale Catchments, in Natural Resources
, 3, 145-155.
Klein Tommy et al., Calanca Pierluigi, Holzkämper Annelie, Lehmann Niklaus, Rösch Andreas, Fuhrer Jürg (2012), Using farm accountancy data to calibrate a crop model for climate impact studies., in Agricultural Systems
, 111, 323-333.
Lehmann Niklaus, Finger Robert, Klein Tommy (2012), Modeling Complex Crop Management-Plant Interactions in Potato Production under Climate Change, in Operations Research Proceedings 2011
, Springer-Verlag Berlin HeidelbergSpringer Verlag, Berlin.
Finger Robert, Lehmann Niklaus (2012), Policy reforms to promote efficient and sustainable water use in Swiss agriculture., in Water Policy
, 14(5), 887-901.
Finger Robert, Lehmann Niklaus (2012), The Influence of Direct Payments on Farmers' Hail Insurance Decisions., in Agricultural Economics
, 43, 343-354.
Holzkämper Annelie, Calanca Pierluigi, Fuhrer Jürg (2012), Statistical crop models: Predicting the effects of temperature and precipitation changes, in Climate Research
, 51(1), 11-21.
Swiss Society for Agricultural Economics and Rural Sociology (ed.) (2012), Regional Crop Modeling: How Future Climate May Impact Crop Yields in Switzerland
, Swiss Society for Agricultural Economics and Rural Sociology, Zurich.
Klein T, Holzkämper A, Calanca P, Fuhrer J, Adaptation options under climate change for multifunctional agriculture: a simulation study for western Switzerland, in Regional Environmental Change
Klein Tommy, Holzkämper Annelie, Calanca Pierluigi, Fuhrer Jürg, Adaptation options under climate change for multifunctional agriculture: a simulation study for western Switzerland, in Regional Environmental Change
Finger Robert Lehmann Bernard, Adoption of Agri-environmental Programmes in Swiss Crop Production., in EuroChoices
Lehmann Niklaus, Finger Robert, EVALUATING WATER POLICY OPTIONS IN AGRICULTURE: A WHOLE-FARM STUDY FOR THE BROYE RIVER BASIN (SWITZERLAND), in Irrigation and Drainage
Finger Robert Lehmann Niklaus, Modeling climate sensitivity and climate change influence on the provision of outdoor recreation, in Climate Research
Finger Robert, Nitrogen Use and the Effects of Nitrogen Taxation Under Considerations of Production and Price Risk., in Agricultural Systems
Agriculture is a sector which is going to be strongly affected by climate change. Changes in temperature and in precipitation pattern may lead to more frequent water-related risks in agricultural production. Thus, farmers will have to adapt their water resource management to the changing climatic conditions under variable socio-economic and political constraints. Such adaptations might intensify existing impacts on the environment and lead to new conflicts with other landscape functions. To prevent continued degradation of natural resources, policy will need to support farmers’ adaptation while considering the multifunctional role of agriculture. The goal of the project is to investigate sustainable strategies for future agricultural land use and farm management to mitigate the negative consequences of climate change for water use in Swiss agriculture. The focus is on developing recommendations to optimize the use of water under different scenarios of climatic, socio-economic and political developments, while maintaining economic profitability and environmental standards, and to identify regulatory actions needed to implement adaptive measures. Relevant decision levels are considered, i.e. the regional (catchment) scale, at which planners need to develop strategies for agricultural land use and water retention, and the farm scale, where farmers need to adapt land and farm management under changing economic and political pressures. Environmental impacts of optimized strategies are assessed and ranked using Life Cycle Assessment (LCA) which also accounts for water use. The key questions addressed here are: What is the water consumption by agriculture in selected regions (catchments) under present and future (climate, agricultural policy, land use/technology) conditions (up to 2050), and how large is the risk in crop production due to water shortage? What are optimized strategies for water conservation in agricultural land use (forage, crop and livestock production) at the spatial scale, and at the scale of individual farms, and what are the environmental impacts of such strategies? What recommendations for management and policy measures can be made to implement sustainable water use in Swiss agriculture? Adaptive management strategies at the two levels will result from hierarchical optimization. Biophysical component models will be used to estimate impacts of changes, as projected by downscaling IPCC global climate scenarios, and land management on crop, grassland and livestock water use and productivity, and on different environmental targets, in two selected study regions (Greifensee in the Canton of Zurich, Broye in the Cantons of Vaud and Fribourg). Both regions are dominated by agricultural land use but they differ significantly in their current climatic conditions. Results will feed into both a GIS-based regional optimization model and a farm decision model. Five work packages will form the project structure: WP1 - Scenario development; WP2 - Spatially explicit optimization of land management patterns at the catchment scale; WP3 - Technological optimizations at the level of single farms; WP4 - Life Cycle Assessment of overall environmental impacts of the solutions from WP2 and WP3. The methodology will operate at the farm and regional level and will be specifically adapted to Switzerland; WP5 - Integration. The result of the integrative process will be a set of recommendations for land and farm adaptation and for policy and administrative measures necessary to facilitate adaptation to take place. A further outcome will be an estimate of water saving potentials, and a list of tradeoffs and possible conflicts. The approach combines expert knowledge and existing data with simulation tools, and it involves continuous interactions with stakeholders. These will be organized in two groups: (1) public administration, political authorities and the industry, and (2) agriculture practitioners (farmers and producer unions). The two stakeholder groups will be involved in the selection of socio-economic and technological scenarios in WP1, the selection of farm-scale management and adaptation options to be investigated in WP3, and the identification of preferences and constraints for the development of regional adaptation strategies in WP2.