南沙群岛海域溶解无机磷的分布  

DISTRIBUTION OF DESSOLVED INORGANIC PHOSPHATE IN NANSHA ISLANDS SEA AREA, SOUTHERN SOUTH CHINA SEA

作　　者：程赛伟[1] 林洪瑛[1] 

机构地区：[1]中国科学院南海海洋研究所,广东广州510301

出　　处：《热带海洋学报》2002年第3期31-37,共7页Journal of Tropical Oceanography

基　　金：九五"国家科技攻关项目(97 926 04 01)

摘　　要：根据"八五","九五"国家科技专项南沙群岛海域综合科学考察的现场调查资料,对该海域的溶解无机磷(PO3-4 P含量高于4 P)分布进行了分析。结果表明,南沙群岛东南部海域的PO3-其它海区;PO3-4 P随深度的增加而增加,变化速率在50—100m范围内最大;周日变化随季节及站点的不同而不同。南沙群岛海域PO3-4 P含量分布是物理过程和生物过程共同作用的结果。Based on the survey data from the program 'Multidisciplinary Expedition to Nansha Islands Sea Area', the distribution of dissolved inorganic phosphate (PO3-4P) in the sea water of Nansha Islands sea area was comprehensively analyzed in this paper. The results showedthat PO3-4Pconcentration in the sea water of southeastern Nansha Islands sea area was commonly higher than that in the other sea areas; the vertical distribution of PO3-4P concentration varied inconspicuouslyin different season; the concentration of PO3-4P increased with water depth increasing and changed the most greatly in the layerof 50-100m. The diurnal variation of PO3-4P concentration differed indifferent season and at different observation station. The distribution and variation of PO3-4Pconcentration resulted fromthe physical process and biological process together. 

关 键 词：南沙群岛 溶解无机磷 季节分布 周日变化 生物过程 物理过程 

分 类 号：P734.4[天文地球—海洋化学] P714.4[天文地球—海洋科学]