CAJ | 학술논문

为了解南海南部海域不同水团对悬浮体分布特征的影响，于2012年4~5月在南海南部海域的80个测站分层采集了悬浮体水样，并现场测量各站位200 m以浅水体剖面上的悬浮体浓度、粒径、水体浊度、叶绿素a浓度以及温度、盐度等数据。分别选取受中南半岛沿岸混合水、南部陆架水、苏禄海与本地海水的混合水、南沙中央表层水等4个水团影响的多个典型站位数据，分析各水团悬浮体组分和分布特征。结果表明，南海南部海域悬浮体含量很少，浓度较小，均值为2.96μL/L；悬浮体主要组分为生源大颗粒，其粒径多在100μm以上，另有少量无机矿物碎屑，其粒径大部分小于32μm。巽他陆架北缘浅水区受南部陆架水控制，并且受到局地上升流的影响，陆源物质和生源物质含量均较多，导致其悬浮体浓度在4个水团中最高。苏禄海与本地海水混合水中悬浮体分布主要受浮游植物的影响。中南半岛沿岸混合水中悬浮体含较多陆源物质。南沙中央表层水受陆源物质影响很小，悬浮体主要由生源物质组成，且其浓度较小。
위료해남해남부해역불동수단대현부체분포특정적영향，우2012년4~5월재남해남부해역적80개측참분층채집료현부체수양，병현장측량각참위200 m이천수체부면상적현부체농도、립경、수체탁도、협록소a농도이급온도、염도등수거。분별선취수중남반도연안혼합수、남부륙가수、소록해여본지해수적혼합수、남사중앙표층수등4개수단영향적다개전형참위수거，분석각수단현부체조분화분포특정。결과표명，남해남부해역현부체함량흔소，농도교소，균치위2.96μL/L；현부체주요조분위생원대과립，기립경다재100μm이상，령유소량무궤광물쇄설，기립경대부분소우32μm。손타륙가북연천수구수남부륙가수공제，병차수도국지상승류적영향，륙원물질화생원물질함량균교다，도치기현부체농도재4개수단중최고。소록해여본지해수혼합수중현부체분포주요수부유식물적영향。중남반도연안혼합수중현부체함교다륙원물질。남사중앙표층수수륙원물질영향흔소，현부체주요유생원물질조성，차기농도교소。
In order to study the impact of different water masses from the southern South China Sea (SCS) on dis-tribution characteristics of suspended matter, we collected the water samples of the southern SCS in April and May, 2012, and measured the volume concentration of the suspended particulate matters (SPM), Chlorophyll concentra-tion, turbidity, temperature and salinity. Typical stations under the influence of different water masses (including the shelf water in the north rim of the Sunda Shelf, the mixed water in the west side on the Balabac Strait of the local seawater and the water from the Sulu Sea, the Nansha central surface water and the mixed water from the coast of the Indo-China Peninsula) have been selected to analyze the composition and the distribution characteristics of the SPM in different water masses. The results showed that the volume concentration in the survey area was low (mean 2.96μL/L) and the SPM in the ocean were mainly composed of biogenic particles with a particle size of more than 100μm. In addition, a small amount of inorganic mineral debris. Most of the particle size was less than 32μm. The SPM of shallow water in the north edge of the Sunda Shelf has the highest volume concentration and contained more terrigeneous matter and biogenicmaterial due to the influence of shelf water and the upwelling. The SPM of the mixed water from the Sulu Sea and the southern SCS is mainly influenced by phytoplanktons. The SPM from the area affected by the mixed water from the coast of the Indo-China Peninsula contains more terrigenous matters, whereas terrigenous matters have less impact on the SPM of the Nansha central surface water which are mainly composed of biogenicmateria.