Reduction of primary production and changing of nutrient ratio in the East China
TheChangjiang(Yangtze)River,thefifthlargestriver
intheworldintermsofwaterdischarge,emptiesintothe
northwestcorneroftheEastChinaSea(ECS),oneofthe
largestfisheriesintheworld.Annualwaterdischarge
reaches924.8109
m3
y1
,andthenutrientfluxof
inorganicnitrogen
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