海洋学报(中文版)
海洋學報(中文版)
해양학보(중문판)
Acta Oceanologica Sinica
2015年
10期
26-38
,共13页
王晓琦%邢小罡%王金平%李娜
王曉琦%邢小罡%王金平%李娜
왕효기%형소강%왕금평%리나
叶绿素 a 浓度%颗粒物后向散射系数%南海%季节尺度%光驯化
葉綠素 a 濃度%顆粒物後嚮散射繫數%南海%季節呎度%光馴化
협록소 a 농도%과립물후향산사계수%남해%계절척도%광순화
chlorophyll a concentration%particle backscattering coefficient%South China Sea%seasonal scale%pho-toacclimation
本文基于卫星遥感的叶绿素 a 浓度与颗粒物后向散射系数月平均数据以及其他海洋与气象参数,详细分析了两个生物光学参量在季节尺度上的相关性及其与物理参数的耦合关系,并运用光驯化模型分析了南海表层水体浮游植物的生理学季节变化特征。结果表明,受南海地形和风场等物理参量的变化,南海叶绿素 a 浓度与颗粒物后向散射系数存在显著的季节和空间分布特征,具有一定的共变性和差异性。在南海近岸及浅水区,叶绿素 a 浓度与颗粒物后向散射系数有很好的耦合关系;而在南海深水海盆区,叶绿素 a 浓度冬高夏低,其季节循环过程与颗粒物后向散射系数相反,这主要是受浮游植物生理学过程的影响。“生物量控制区”与“光驯化控制区”的分界在南海与陆架-海盆分界线一致,体现了水深条件对浮游植物生理状态的影响。此外本文还发现,在吕宋海峡西部海区,叶绿素 a与颗粒物后向散射系数的关系表现出“生物量-光驯化共同控制”的特点。
本文基于衛星遙感的葉綠素 a 濃度與顆粒物後嚮散射繫數月平均數據以及其他海洋與氣象參數,詳細分析瞭兩箇生物光學參量在季節呎度上的相關性及其與物理參數的耦閤關繫,併運用光馴化模型分析瞭南海錶層水體浮遊植物的生理學季節變化特徵。結果錶明,受南海地形和風場等物理參量的變化,南海葉綠素 a 濃度與顆粒物後嚮散射繫數存在顯著的季節和空間分佈特徵,具有一定的共變性和差異性。在南海近岸及淺水區,葉綠素 a 濃度與顆粒物後嚮散射繫數有很好的耦閤關繫;而在南海深水海盆區,葉綠素 a 濃度鼕高夏低,其季節循環過程與顆粒物後嚮散射繫數相反,這主要是受浮遊植物生理學過程的影響。“生物量控製區”與“光馴化控製區”的分界在南海與陸架-海盆分界線一緻,體現瞭水深條件對浮遊植物生理狀態的影響。此外本文還髮現,在呂宋海峽西部海區,葉綠素 a與顆粒物後嚮散射繫數的關繫錶現齣“生物量-光馴化共同控製”的特點。
본문기우위성요감적협록소 a 농도여과립물후향산사계수월평균수거이급기타해양여기상삼수,상세분석료량개생물광학삼량재계절척도상적상관성급기여물리삼수적우합관계,병운용광순화모형분석료남해표층수체부유식물적생이학계절변화특정。결과표명,수남해지형화풍장등물리삼량적변화,남해협록소 a 농도여과립물후향산사계수존재현저적계절화공간분포특정,구유일정적공변성화차이성。재남해근안급천수구,협록소 a 농도여과립물후향산사계수유흔호적우합관계;이재남해심수해분구,협록소 a 농도동고하저,기계절순배과정여과립물후향산사계수상반,저주요시수부유식물생이학과정적영향。“생물량공제구”여“광순화공제구”적분계재남해여륙가-해분분계선일치,체현료수심조건대부유식물생리상태적영향。차외본문환발현,재려송해협서부해구,협록소 a여과립물후향산사계수적관계표현출“생물량-광순화공동공제”적특점。
On the basis of satellite remotely sensed monthly chlorophyll a concentration and particle backscattering coefficient,as well as other oceanographic and meteorological parameters,this study analyzed on the correlation co-efficients between concentration of chlorophyll a and particulate backscattering on seasonal scale and their coupling relationships with physical parameters in the South China Sea.In addition,a phytoplankton photoacclimation model was utilized to identify the physiological characteristics.The results showed that,due to the influences of specific topography,wind forcing and other physical parameters,both consistency and discrepancy between the seasonal cy-cles of chlorophyll a and particle backscattering coefficient were found in the South China Sea.In coastal and shal-low waters,two properties were strongly coupled;while in the central deep-water basin,chlorophyll a was higher in winter and lower in summer,totally differing from the seasonal evolution of particles,such phenomenon was mainly owing to phytoplankton physiological process.The boundary of “biomass regime”and “photoacclimation regime”in the South China Sea located at the shelf-basin interface,suggesting the influence of water depth on the phytoplankton physiological status.Furthermore,a characteristics of “biomass-photoacclimation joint controlling”was found in the west of Luzon Strait.