CAJ | 학술논문

基于水色遥感数据用PHYSAT算法反演了南海浮游植物优势类群分布的季节变化，结果表明：微型真核生物作为优势类群全年出现几率最大，原绿球藻次之，聚球藻再次之，硅藻最小；硅藻为优势类群的区域主要在近岸和陆架区，外海原绿球藻和聚球藻的优势度增加。在季节差异上，冬季微型真核生物为优势类群的区域在整个南海海区所占面积的百分比最高，春季原绿球藻比例最高，聚球藻呈双峰结构，在春季和秋季出现峰值，硅藻为优势类群区域的季节性差异较小。陆架、陆坡和海盆区浮游植物优势类群比例的季节变化相近，都表现为冬季微型真核生物的绝对优势和春季原绿球藻优势的大大增加。营养盐浓度分布的季节变化是引起浮游植物优势类群改变的主要影响因子，随着海区中营养盐浓度的降低，浮游植物优势类群由粒径较大的微型真核浮游生物向微微型浮游植物聚球藻和原绿球藻转变。
기우수색요감수거용PHYSAT산법반연료남해부유식물우세류군분포적계절변화，결과표명：미형진핵생물작위우세류군전년출현궤솔최대，원록구조차지，취구조재차지，규조최소；규조위우세류군적구역주요재근안화륙가구，외해원록구조화취구조적우세도증가。재계절차이상，동계미형진핵생물위우세류군적구역재정개남해해구소점면적적백분비최고，춘계원록구조비례최고，취구조정쌍봉결구，재춘계화추계출현봉치，규조위우세류군구역적계절성차이교소。륙가、륙파화해분구부유식물우세류군비례적계절변화상근，도표현위동계미형진핵생물적절대우세화춘계원록구조우세적대대증가。영양염농도분포적계절변화시인기부유식물우세류군개변적주요영향인자，수착해구중영양염농도적강저，부유식물우세류군유립경교대적미형진핵부유생물향미미형부유식물취구조화원록구조전변。
PHYSAT algorithm was used to reproduce the average seasonal distribution of the dominant phytoplankton groups in the South China Sea based on water color satellite data. The results show that nanoeukaryote is the most dominant group in the South China Sea in the whole year,with Prochlorococcus,Synechococcus and diatoms following in turn. Dia-toms is mostly observed in the coastal and continental shelf areas,while Prochlorococcus and Synechococcus dominance increased in the offshore. Nanoeukaryotes dominance is very high in winter but Prochlorococcus in spring. Synechococcus seasonal distribution is bimodal with peaks occurring in spring and autumn. The seasonal variation of diatoms dominance is very small. Seasonal variation of the proportion of phytoplankton dominant groups in continental shelf,continental slope and basin is very similar. Nanoeukaryotes are predominating in winter. The dominance of Prochlorococcus greatly increases in spring compared with other seasons. Seasonal variation of nutrient concentration is the main factor influencing the distribu-tion of the dominant phytoplankton groups. With the nutrient concentration decreasing,phytoplankton dominant group changes from nanoplanktonic nanoeukaryotes species to picoplanktonic Prochlorococcus and Synechococcus species.