Nutrient Management

摘要

Excessive nitrogen or phosphorus discharges to water-bodies cause water quality decline and ecological and economic losses. In particular, the U.S. East Coast, because of its numerous em-bayments and estuaries and heavy population density, has many wa-terbodies impaired by excessive nutrients, notably Chesapeake Bay, Long Island Sound, Cape Cod, and the Florida coast. The Gulf of Mexico "dead zone" and some West Coast embayments, such as Puget Sound, also are nutrient-impaired.