Generally, in 24 hours, the DOC in euphotic layer is higher in the daytime than that in the night time.

 
  • 角毛藻分泌的溶解有机碳(DOC)与颗粒有机碳(POC)存在昼夜变化规律:白天比晚上高,夜晚始终处于低值;
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