Under natural conditions, lakes, rivers, and other water bodies undergo Eutrophication, an aging process that slowly fills in the water body with sediment and organic matter.
在自然条件下，湖泊，河流，和其他水体进行水体富营养化，老龄化的进程，慢慢地填满了水体与沉积物和有机物。
The water and sediment fluxes coming from Changjiang River are two important estuarine boundary conditions, which control the law of estuarine evolution.
长江流域水沙条件是河口三角洲发育演变的一个重要条件，而河口区是陆海相互作用研究的一个典型区域。
Thus, the model can be used to predict the sediment scouring and depositing processes under conditions with decreased quantities of water and sediment.
本模型可用于预测不同减水减沙情况下的泥沙冲淤调整过程。
At the appropriate temperature conditions, when water phosphorus concentration is low or zero, APA role of phosphorus from sediment in the water release for the use of algal growth and reproduction.
在适宜温度条件下，当水体中磷浓度较低或为零时，APA作用使得底泥中的磷向水体中释放，供藻类生长繁殖利用。
At the appropriate temperature conditions, when water phosphorus concentration is low or zero, APA role of phosphorus from sediment in the water release for the use of algal growth and reproduction.
在适宜温度条件下，当水体中磷浓度较低或为零时，APA作用使得底泥中的磷向水体中释放，供藻类生长繁殖利用。
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