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测得长江口及舟山附近海水中可溶态碳水化合物(DCHO)的浓度范围为142—22μg/L,颗粒态碳水化合物(PCHO)为42.9—71.5μg/L。其分布除表层DCHO有所不同外,其余各层的碳水化合物的分布均与叶绿素a相似,表明与生物量有直接关系。PCHO和叶绿素a的浓度在调查海区的东北处有较高值,表明可能是受长江水输入的影响。 在研究DCHO和PCHO的周日变化寸发现,在表层水中DCHO最大值在19:30,较晚于PCHO(15:30),而叶绿素a的高值在8:00和20:00。文章讨论了变化原因,同时也讨论了DCHO/PCHO和PCHO/叶绿素a的比值变化情况。
Concentrations of soluble carbohydrates (DCHO) in the seawater around the Changjiang Estuary and Zhoushan were measured at 142-22 μg / L and PCOH was 42.9-71.5 μg / L. In addition to the distribution of the surface DCHO are different, the remaining layers of carbohydrate distribution and chlorophyll a similar, indicating that there is a direct relationship with the biomass. The concentrations of PCHO and chlorophyll a were higher in the northeast of the surveyed sea area, indicating that they may be affected by the Yangtze River water input. In studying the diurnal variations of DCHO and PCHO, it was found that the maximum DCHO in surface water was 19:30, later than PCHO (15:30), while the high value of chlorophyll a was between 8:00 and 20:00. The article discusses the causes of the changes and also discusses the ratio of DCHO / PCHO and PCHO / chlorophyll a changes.