As the winds reverse direction (offshore versus onshore), they alternately enhance or suppress upwelling, which changes nutrient concentrations.
由于风向会发生反转(离岸与陆上)，它们通过加强或抑制上升流的交替，从而改变养分的含量。
The transition between El Niño and its counterpart, La Niña, is sometimes accompanied by a dramatic surge in phytoplankton productivity as upwelling of nutrient-rich deep water is suddenly renewed.
而在厄尔尼诺以及它相对应的拉尼娜互相转换的过渡期间，有时会伴随着浮游植物生产力的明显提高，这是由于富含养分的深层水的上升流被突然更新了。
On basis of location, water dynamic, nutrient loading, red tides are classified as six types of estuary type, bay type, culture zone, coastal water type, upwelling type and open sea.
根据赤潮灾害发生的空间位置、水动力、 营养物质来源等因素，将赤潮灾害类型划分为河口型、海湾型、养殖型、沿岸流型、上升流型和外海型六类。
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