CAJ | 학술논문

根据1998年5月的调查资料，分析并讨论了春季黄海南部海区溶解无机氮的分布特征。结果表明：(1)因受长江冲淡水及沿岸流的影响，NH+4-N、NO-2-N浓度的平面分布基本呈周边高、中央低，NO-3-N的浓度则基本呈长江口外海域高、中北部深水区低的分布规律。(2)调查海域深水区的溶解无机氮存在明显的层化现象，且底层等值线上凸密集。10m以浅水体，NO-3-N的浓度分布均匀，10m以深水体，NO-3-N的浓度急剧增加，且呈现出随深度增加而增加的趋势，NH+4-N、NO-2-N浓度的垂直分布比较均匀。(3)黄海南部表层叶绿素a的浓度呈现周边高、中央低的分布特征。
근거1998년5월적조사자료，분석병토론료춘계황해남부해구용해무궤담적분포특정。결과표명：(1)인수장강충담수급연안류적영향，NH+4-N、NO-2-N농도적평면분포기본정주변고、중앙저，NO-3-N적농도칙기본정장강구외해역고、중북부심수구저적분포규률。(2)조사해역심수구적용해무궤담존재명현적층화현상，차저층등치선상철밀집。10m이천수체，NO-3-N적농도분포균균，10m이심수체，NO-3-N적농도급극증가，차정현출수심도증가이증가적추세，NH+4-N、NO-2-N농도적수직분포비교균균。(3)황해남부표층협록소a적농도정현주변고、중앙저적분포특정。
Based on the investigation data from the project “Res earch onthe Dynamic of Seawater Circulation and Mass Long-Term Transportation ”, which was implemented in May 1998, the distribution patterns of dissolved in organic nitrogen (DIN) in the Southern Yellow Sea in May were discussed. The major results could be summarized as (1) The horizontal distribution features of am monia and nitrite show high concentrations in the coastal area and relatively low concentrations in the central area. In the light of the distribution of nitrate, high concentration was identified in the area off the Changjiang River estuary. In the central and northern part of the Southern Yellow Sea, the depth is great and the concentration of nitrate is low. The input of the Changjiang River fr esh water with high concentration nutrients and the alongshore currents should be responsible for the distribution pattern. (2) In the deep-water area, the vertical profiles of DIN stratified obviously. The isopleth of DIN has a significant trend of going up, which is caused by the upwelling Yellow Sea Cold Water. The concentration of nitrate increases from surface to bottom, with a sudden increa se at the 10m layer. (3) The content of chl-a at the surface is high in the alongshore area, but low in the central area.