FOOD SECURITY AND AGRICULTURE IN THE ANDES
Tailored climate information in pilot basins for food security and agriculture in the Andes
Local authorities in Colombia, Peru, Bolivia and Ecuador need rainfall forecasts, probabilities of extreme temperatures, and probability of exceeding certain thresholds to successfully manage local agriculture processes in the future. This kind of information is expected to reduce crop losses, and improve farming practices (crop cycles) by providing authorities and farmers with useful and tailored climate change information.
CASE STUDY DESCRIPTION
Issue to be addressed
In case of expected weather conditions above normal or below normal, the authorities must implement plans to ensure that farmers can deliver their harvest to distribution centers. Farmers need forecasts to plan crop cycles. At present, local authorities and farmers do not have forecast information at the level of detail required or in the appropriate language. This situation occurs because forecasts are made for large regions and only in terms of probability in tercile categories which have little meaning to the local authorities and farmers.
Decision support to client
Forecast information is needed as different conditions lead to different plans having to be enacted. If future conditions project that rainfall will be above normal, authorities need to implement plans to guarantee crops can be delivered from the production sites to the distribution centers, as excessive rainfall makes access to the fields difficult. Farmers need to plan to rotate crops or modify the planting plan. Conversely, if conditions will be below normal, authorities should consider providing irrigation mechanisms or alternative sources of food products, and farmers need to think of rotating crops or modifying the planting plan.
All actions are focused on two of the pillars of food security:
- Access to agricultural products (Availability)
- Offer of agricultural products (Stability)
Temporal and spatial scale
The case study is focused on a seasonal time scale (monthly and quarterly). Decision-making is implemented at the basin scale. There are four pilot basins of different spatial scales, from thousand square kilometers (Mantaro valley (Peru) and Sushes river basin (Bolivia)) to hundred square kilometers (Chinchina basin (Colombia), Jubones river basin (Ecuador)).
The clients in the four pilot basins have dealt with the knowledge purveyor previously, and there is a clear understanding of the clients' needs. Contact with the clients are conducted through the National Meteorological and Hydrological Services (NMHSs), and there are specific contact people for each pilot basin. The knowledge purveyor has assessed each basin and found that all basins need similar climate variables, however there are different types of crops, technical development and level of service received by NMHSs.
Client needs are surveyed through regular in-person meetings. Clients, both authorities and farmers, need better spatial resolution in climate and sub-seasonal forecasts. Tailoring forecasts in terms other than tercile categories will help to better communicate and provide information for better decision making. Communication of results to the clients will be through a simple web visualization.