同位素2011，Vol.24Issue(z1)：95-101,7.
夏季黄、东海初级生产力的分布及其变化
Distribution of Primary Production in the Yellow Sea and the East China Sea in Summer
摘要
Abstract
Primary production supports substantial biomass and higher trophic level organisms in the coastal waters, but the mechanisms regulating primary production in coastal waters are still difficult to assess. In this study, primary production in the Yellow Sea and the East China Sea was measured via 14C tracer in summer 2006 to reveal their distribution features and the impact factors. Our results showed that the depth-integrated primary production ranged from 378. 65 to 6 403. 47 mg/(m2 ? D) with an average of 2 059. 56 mg/(m2 ? D). The distribution of primary production indicated that (1) primary production in the East China Sea was higher than those in the Yellow Sea; (2) primary production in sea areas influenced by the Kuroshio waters was significantly lower than those in the shelf regions; and (3) high primary production was observed in the southeastern region of Changjiang estuary and the southwestern region of Jelu Island. The relationship between primary produc-tion and environmental factors suggested that high primary production mostly occurred in seawaters with temperature of 21-26 ℃ , and the primary production was regulated by the a-vailability of nutrients and lights. The low primary production in the regions influenced by the Kuroshio waters was ascribed to the low nutrients, and the high primary production in the southeastern region of Changjiang estuary and the southwestern region of Jelu Island was ascribed to the abundant nutrients supplied by the Changjiang river and the cold eddy.关键词
黄海/东海/初级生产力/14C示踪法/夏季Key words
the Yellow Sea/the East China Sea/primary production/14C tracer/summer分类
资源环境引用本文复制引用
林志裕,童金炉,陈敏,邱雨生,马嫱,杨俊鸿..夏季黄、东海初级生产力的分布及其变化[J].同位素,2011,24(z1):95-101,7.基金项目
国家重点基础研究发展规划项目课题"典型水域生源要素循环及浮游植物多样性对海洋物理环境演变的响应"(2005CB422305) （2005CB422305）
国家自然科学基金杰出青年基金项目"同位素海洋化学研究"(41125020) （41125020）
