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从营养扰动实验看原绿球藻在近海分布的制约因素(英文) 被引量:3
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作者 焦念志 杨燕辉 +2 位作者 Hiroshi KOSHIKAWA Shigeki HARADA masataka watanabe 《Acta Botanica Sinica》 CSCD 2002年第6期731-739,共9页
地球上细胞最小、丰度最大的放氧光合自养原核生物原绿球藻 (Prochlorococcus)发现于热带大洋 ,并被证实可在某些近海甚至近岸水域大量分布。但除温度之外 ,原绿球藻自然分布的控制因子尚不明了。从近海和大洋生态条件的主要差别考虑 ,... 地球上细胞最小、丰度最大的放氧光合自养原核生物原绿球藻 (Prochlorococcus)发现于热带大洋 ,并被证实可在某些近海甚至近岸水域大量分布。但除温度之外 ,原绿球藻自然分布的控制因子尚不明了。从近海和大洋生态条件的主要差别考虑 ,在南海进行了主要营养盐———氮、磷和微量元素———铁、钴扰动的现场培养实验 ,并应用流式细胞技术监测原绿球藻及聚球藻 (Synechococcus)、超微型真核浮游植物 (pico_eukaryotes)的细胞丰度和单细胞色素含量的响应以及细菌的影响。结果表明 ,磷和钴的添加有利于原绿球藻 ,而氮和铁的添加更有利于聚球藻和超微型真核浮游植物。同时 ,由环境条件引起的生物响应又间接地导致超微型生物之间的相互作用。因而 ,原绿球藻在近海的分布 。 展开更多
关键词 原绿球藻 超微型浮游生物 营养盐 南海
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Integrated ecosystem assessment for western development of China 被引量:4
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作者 Liu Ji-yuan masataka watanabe +2 位作者 Yue Tian-xiang Ouyang Hua Deng Xiang-zheng 《Journal of Geographical Sciences》 SCIE CSCD 2002年第2期4-11,共8页
The objectives of Integrated Ecosystem Assessment for Western Development of China includes: (1) providing scientific basis for ecosystem protection, ecosystem management and ecological construction in the western dev... The objectives of Integrated Ecosystem Assessment for Western Development of China includes: (1) providing scientific basis for ecosystem protection, ecosystem management and ecological construction in the western development; (2) developing complete database and analytical tools and strengthening decision-making support capacity; and (3) improving ecosystem management in China, spreading ecological knowledge to the public, serving decision-making of local and central governments, and promoting socio-economic sustainable development. The design and implementation of the project are of significance under the macro background of western development of China. By the integrated assessment of western China, we can get the first-hand data covering all the environmental factors as well as disclose the situations and their changing trends of ecosystem in the western part of China, which will benefit the decision-making for the central and local governments in the implementation of the western development strategy. In other words, the implementation of the project, to a certain extent, can guarantee the regional sustainable development of western China. 展开更多
关键词 ecosystem assessment Ecosystem Assessment System DIS DSS ecological zone western development China
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