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Displaying 1081 - 1085 of 1605Geographical downscaling of outputs provided by an economic farm model calibrated at the regional level
There is a strong need for accurate and spatially referenced information regarding policy making and model linkage. This need has been expressed by land users, and policy and decision makers in order to estimate both spatially and locally the impacts of European policy (like the Common Agricultural Policy) and/or global changes on farm-groups. These entities are defined according to variables such as altitude, economic size and type of farming (referring to land uses).
Mud crab ecology encourages site-specific approaches to fishery management
Little is known about the effects of mud crabs population patterns on their exploitation. We used complementary approaches (experimental, fisher-based) to investigate how small-scale variations in density, size and sex-ratio related to the ecology of S. serrata may impact fishing practices in New Caledonia. Crabs were measured/sexed across 9 stations in contrasted mangrove systems between 2007 and 2009. Stations were described and classified in different kinds of mangrove forests (coastal, riverine, and estuarine); vegetation cover was qualitatively described at station scale.
SAC-SMA a priori parameter differences and their impact on distributed hydrologic model simulations
Deriving a priori gridded parameters is an important step in the development and deployment of an operational distributed hydrologic model. Accurate a priori parameters can reduce the manual calibration effort and/or speed up the automatic calibration process, reduce calibration uncertainty, and provide valuable information at ungauged locations. Underpinned by reasonable parameter data sets, distributed hydrologic modeling can help improve water resource and flood and flash flood forecasting capabilities.
36year trends in dissolved organic carbon export from Finnish rivers to the Baltic Sea
Increasing dissolved organic carbon (DOC) concentrations in lakes, rivers and streams in northern mid latitudes have been widely reported during the last two decades, but relatively few studies have dealt with trends in DOC export. We studied the export of DOC from Finnish rivers to the Baltic Sea between 1975 and 2010, and estimated trends in DOC fluxes (both flow normalised and non-normalised). The study encompassed the whole Finnish Baltic Sea catchment area (301,000km²) covering major land use patterns in the boreal zone.
Indicators of nutrients transport from agricultural catchments under temperate climate: A review
The flow of chemical materials along spatial elements is a fundamental aspect of landscape ecology. The research renders indicators for water pollution, which are utile for functional water management and land use planning. Ecologists identify mechanisms of nutrients transfer and mitigate their environmental impacts using freshwater wetlands and riparian buffers. In order to estimate the N (nitrogen) and P (phosphorus) loss risk, current research combines indicators into index models.