Due to the influence of environmental pollution, phytoplankton blooms often arise in many lakes and reservoirs in China (during) spring through autumn.

在春至秋季，由于环境污染的影响，我国许多湖泊和水库中经常发生水华现象。

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Phytoplankton require nutrients to reproduce, and phytoplankton blooms are often tied to events that bring nutrients to the ocean surface, such as dust plumes.

浮游植物需要养分进行繁殖，而藻华的出现往往与给洋面带来营养物质的事件相联系，譬如灰尘羽流。

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Dr Pollard and his colleagues found, as geo-engineers would hope, that phytoplankton blooms in the waters north of the islands were bigger and longer-lived than those to the south.

Pollard博士和他的同事发现，北面海域中浮游生物的确比南面海域中的体型更加硕大，而且寿命也更长，这与地球工程中的预期一致。

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Phytoplankton usually blooms in the spring, but dies back in the summer.

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These blooms indicate proliferation of phytoplankton that is fundamental to ocean life and climate regulation.

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