论文部分内容阅读
海水中NO_3—N的含量,在浮游植物大量繁殖时,可以使之消耗殆尽。但有机质的分解,可以使之获得再生。海水垂直对流作用,可以将底部再生的NO_3—N带到上层。大陆水也会带来大量的NO_3—N。 海水中NO_3—N的分布,是具有一定规律性的。这与它在海洋中的消耗和再生补充过程有密切关系。沿岸,特别是江口,由于大陆水带来了大量的NO_3—N,因而其含量高;夏季水体垂直稳定,上层浮游植物活动使NO_3—N含量降低,而o_t跃层以下,有机物分解使其含量增高;冬季强烈的水体对流作用,使底部的NO_3—N补充到上层,以致使其含量达全年最高值。
The NO3-N content in seawater can be depleted when phytoplankton multiply in large quantities. However, the decomposition of organic matter, can make it renewable. Sea water vertical convection, the bottom of the regeneration of NO_3-N can be brought to the upper. Continental water will also bring a lot of NO_3-N. The distribution of NO3-N in seawater is a certain regularity. This is closely related to its consumption and regeneration in the ocean. The coasts, especially the estuary, have a high content of NO 3 -N because of the large amount of NO 3 -N in the continental water. The water bodies in the summer are vertically stable, and the activities of the upper phytoplankton decrease the NO 3 -N content. However, Increase; winter strong water convection, so that the bottom of NO_3-N added to the upper, so that its content reached the highest throughout the year.