富栄養化

(1)excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life; "he argued that the controlling factor in eutrophication is not nitrate but phosphate"

(2)湖または他の水域での過剰栄養、通常、植物の高密度増殖を引き起こす陸地からの栄養流出液（動物のし尿、肥料、下水）により引き起こされる

(3)植物の分解は酸素の供給を激減させ、動物の生態の死を招く

(1)he argued that the controlling factor in eutrophication is not nitrate but phosphate

(2)彼は、富栄養化における統制要因が硝酸塩ではなく、リン酸であると主張した