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Populations of European starlings have declined over large parts of northern and western Europe during the last 20 years. It has been suggested that reduced availability of pasture in the agricultural landscape was one reason for this decline. To investigate this, breeding colonies for starlings...
Riparian plant community composition is influenced by moisture, erosion, original native plant communities, and current and past land use. This study compared riparian plant communities under four types of management: woody buffer strip, grassy buffer strip, rotational grazing, and continuous...
Drainage ditches used to remove surface runoff or connected to subsurface tile and mole drains may act as a major conduit of phosphorus (P) from agricultural lands to receiving waters. The extent of P transport via drainage ditches is potentially governed by the P status and retention...
Descriptions of crop water uptake/transpiration are of widely varying complexity and employ considerably different approaches. This paper examines simple approaches that could be used in crop growth simulation models for application in land use systems analysis. Many apparently conceptual...
Much of the increased atmospheric concentration of ammonia (NH 3 ) is derived from dairy farms. In order to better understand the potential for controlling emissions, a comparison was made of NH 3 emissions from dairy farms in the United Kingdom and New Zealand using recently derived emission...
As pressure on land and forest resources increases, there is a growing need to assess and improve the sustainability of slash-and-burn agriculture in tropical uplands. On steep-hillslopes (24–32°) in the forest buffer zone of the Blue Mountains of Jamaica, following clearance of secondary...
Land clearing fires in Sumatra, Indonesia, caused enormous environmental problems for southeast Asia in 1997, but rubber farmers as well as large rubber and oil palm plantation owners continued to slash-and-burn due to the lack of an alternative that is equally quick, cheap, and capable of...
In Swedish open-top chamber experiment, field-grown spring wheat ( Triticum aestivum L. cv. Dragon) was exposed to ozone in 1995 and 1997 to determine the effect of ozone on non-structural carbohydrate concentrations in different plant organs. In both 1995 and 1997, the plants were exposed to an...
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