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primary productivity of waters
释义
primary productivity of waters
Encyclopedia
理学
水体初级生产力
释
primary productivity of waters
水体初级生产力
水体中自养生物(大型水生植物、浮游植物和营光合作用的细菌等)在单位面积、单位时间内,通过光合作用或化学合成制造有机物的速率。通常用卡/平方厘米/天的能量,或克/平方米/年的碳,或干有机物质作单位表示。
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