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The Management of Estuarine Resources in Canada

出版	Canadian Environmental Advisory Council, 1978
ISBN	06620204219780662020424
URL	http://books.google.com.hk/books?id=XVzwAAAAMAAJ&hl=&source=gbs_api

註釋"Estuaries and their associated lands have traditionally provided abundantly for the needs of civilized man. Settlements based on estuarine resources have historically been prosperous, leading the hinterland not only in material wealth but in development and cultural values. They were favoured sites for important cities, attracting commerce and industry, and rising to become keystones to political and economic power. Self renewal of the estuarine environment through daily tidal action and through seasonal fluctuations in water flow permitted intensive use of the resources. Only in recent times, as the estuarine ecosystems were confronted with population and industrial pressures beyond their power to withstand or adjust to, their susceptibility to serious deterioration or destruction was recognized"--Introduction.