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根据１９９８年２月、５月、８月、１１月对同安湾叶绿素ａ含量的调查，分析了同安湾叶绿素ａ的季节分布，并估算了初级生产力Ｃ的含量，调查结果表明：春季的叶绿素ａ含量为全年最高，范围为 ２．６８ μ ｇ／ Ｌ～１６．２４μｇ／Ｌ，平均值为７２２μｇ／Ｌ，初级生产力Ｃ平均为４２８６．４ｍｇ／ｍ２．ｄ；夏季叶绿素ａ含量为１．０３μｇ／Ｌ～５．４０ μｇ／Ｌ，平均值为３．３４μｇ／Ｌ：秋季叶绿素ａ含量为０．３６μｇ／Ｌ～１．５０μｇ／Ｌ，平均值为０．８７ μｇ／Ｌ，初级生产力Ｃ平均为３２．８４ｍｇ／ｍ２．ｄ；冬季叶绿素ａ含量为ｌ、ｌｌμｇ／Ｌ～２．２１μｇ／Ｌ，平均值为ｌ．５６μｇ／Ｌ。本文还将此次调查结果与历史资料作了比较。
According to the investigation of the chlorophyll a content in Tong’an Bay in February, May, August and November 1998, the seasonal distribution of chlorophyll a in Tong’an Bay was analyzed and the content of primary productivity C was estimated. The results showed that the chlorophyll a The content was the highest in the whole year with the range of 2.68 μg / L ~ 16.24 μg / L with the average value of 722 μg / L and the average primary productivity C of 4286.4 mg / m2. d. The content of chlorophyll a in summer was 1.03μg / L ~ 5.40 μg / L with the average value of 3.34μg / L. The content of chlorophyll a in autumn was 0.36μg / L ~ 1.50μg / L with the average of 0 .87 μg / L, average primary productivity C was 32.84mg / m2. d; winter chlorophyll a content l, llμg / L ~ 2.21μg / L, the average value of l. 56 μg / L. This article also compares the findings with historical data.