| 摘要: |
| 新生产力的概念最初由Dugdale等（1967）提出,近年来由于全球变化研究的发展,赋予了新的含义。它不仅反映了海区的群落净生产能力,同时也是海洋真光层对于大气中CO2的净吸收的一种度量。新生产力研究已经成为当今海洋研究的前沿领域,它涉及海洋生态学、生物海洋学、生物地球化学和物理海洋学的研究,具有重要的理论意义和实际意义。新生产力的基本研究方法是15N示踪法,此外,还可应用沉积物捕集器法、f比推算法、物理模型法、真光层净产氧量法、234Th滞留时间法、物质通量模型法以及遥感等方法进行观测或推算。新生产力的研究已被纳入一些国际重大联合研究计划,如JGOFS,GLOBEC等,在短短的几年时间里已取得了迅速的发展,90年代将在更大范围和深度上展开研究,并将对全球新生产力水平有一个较精确和全面的了解。 |
| 关键词: 新生产力 同位素示踪 海洋生态系 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目,39200022号 |
附件 |
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| NEW PRODUCTION — A NEW RESEARCH AREA OF OCEANOGRAPHY |
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Jiao Nianzhi, Wang Rong
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Institute of Oceanology, Academia Sinica, Qingdao 266071
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| Abstract: |
| Study of new production, as a new research area of marine biology and biological oceanography, including the concept, methods and related projects, is reviewed. 15N techneque as the basic method to estimate new production is introduced. Other approaches (by sediment traps, “f” ratio, remote sensing, net oxygen production in the euphoric zone, 234Th residence time, current models, and flux models) are also reviewed.
The Chinese national programmy “Ocean Flux Study in the Shelf Margin of the East China Sea” proposed by the Chinese JGOFS Committee and supported by the NNSFC (National Natural Science Foundation of China) implemented in 1992 has new production study as one of the most important projects. |
| Key words: New production, Isotope tracer, Marine ecosystem |
