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Proposed measures for control of Simulium posticatum 1990
[摘要] The Morpeth-Ashington-Bedlington area forms part of the Northumberland Coalfield. Coal mining and its decline has left a legacy of reclaimed and unreclaimed spoil heaps, uncharted old workings, subsidence and abandoned shafts. Large areas of variably restored opencast coal and brick clay workings are equally common. This has given rise to variable ground conditions which can pose problems for development and derelict land reclamation. When set against this background the need for comprehensive and up-to-date information on the geological environment is readily apparent.
[发布日期]  [发布机构] Institute of Freshwater Ecology
[效力级别] Ecology and Environment [学科分类] 
[关键词]  [时效性] 
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