A systems approach to assess farm-scale nutrient and trace element dynamics: A case study at the Ojebyn dairy farm

Article Abstract:

A system analysis approach at the Ojebyn dairy farm in northern Sweden was used to access farm-scale nutrient and trace element sustainability by combining full-scale field experiments with specific studies of nutrient release from mineral weathering and trace-element cycling. It was found that internal element flows on the farm are large and that there are farm internal sources zinc (Zn) and loss terms such as potassium (K).

Dairy Farms, Dairy Cattle and Milk Production, Pollutants produced & recycled, Waste management, Dairy farming, Trace minerals (Nutrients), Trace elements in the body

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Modeling recovery of Swedish ecosystems from acidification

Article Abstract:

Dynamic acidification model MAGIC was applied, to133 lakes unaffected by agriculture and SAFE, to 645 productive forest sites. The acidification trend was found to be reversed with recovery reported at many sites. The implementation of the current legislation plan will be responsible for preventing threat of further damage from acid deposition to forest soils and lakes.

Government domestic functions, Measurement, Environmental policy, Acid deposition, Ecosystems

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Cadmium in food production systems: A health risk for sensitive population group

Article Abstract:

An overview of the cadmium (Cd) situation in agricultural systems and human exposure in Sweden is provided. It is believed that firm actions have to be taken in order to stop a further increase of Cd in agricultural soils and suggestions are provided for prevention and measures.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Cadmium, Health aspects, Agricultural systems

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