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首页> 外文期刊>Russian journal of marine biology >Nutrients and Primary Production in the Estuary of the Razdol'naya River (Amur Bay, Sea of Japan)
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Nutrients and Primary Production in the Estuary of the Razdol'naya River (Amur Bay, Sea of Japan)

机译：Razdol'naya河（日本海阿穆尔湾）河口的养分和初级生产

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The behavior of the basic nutrients (NO_3, PO_4, SiO_2) was studied in the estuary of the Razdol'naya River in low and high water, the flow was 4.3 x 10~6 m~3/day and 10.8 x 10~6 m~3/day, respectively. It was shown that within the limits of the euphotic zone the nutrients were characterized by a pronounced nonconservative behavior caused by their removal by phytoplankton in primary production. It was determined that phytoplank-ton removal of nutrients occurred with ratios ΔC : ΔNO_3: ΔP : ASi = 105 : 18 : 1 : 37 and ΔC : ΔNO_3 : ΔP : ΔSi = 93 : 11 : 1 : 29 at a respective ratio P : NO_3 : Si = 1 : 22 : 140 in low water and P : NO_3 : Si = 1 : 17 : 120 in high water. It was also determined that the maximum rate of nutrient removal was 4 times higher in the high water than in the low water. The maximum value of primary production of phytoplankton was 2.5-4.0 gC/m~2 day. The estuary area of the Razdol'naya River was specified by rather high production. Such a rate of estuarine primary production, caused by nutrients carried out by the river, being no less than 2501 of dry weight of phytoplankton a day, can provide daily production up to 8001 of biomass in the secondary chain of the ecosystem.
机译：研究了拉兹多纳亚河河口高低水位基本营养素（NO_3，PO_4，SiO_2）的行为，流量为4.3 x 10〜6 m〜3 /天和10.8 x 10〜6 m约3 /天。结果表明，在富营养区的范围内，养分的特征是明显的非保守行为，这是由于浮游植物在初级生产中将其去除而引起的。已确定以比率ΔC：ΔNO_3：ΔP：ASi = 105：18：1：37和ΔC：ΔNO_3：ΔP：ΔSi= 93：11：1：29发生浮游植物营养去除在低水中，NO_3：Si = 1：22：140，在高水中，P：NO_3：Si = 1：17：120。还确定在高水位时最大养分去除率比低水位时高4倍。浮游植物初级生产力的最大值为2.5-4.0 gC / m〜2天。拉兹多纳亚河的河口地区产量很高。这样的河口初级生产力是由河流进行的养分造成的，每天不小于浮游植物干重的2501，可以在生态系统的二级链中提供多达8001的生物量。

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