ConcentrationandDistributionofInorganicNutrientSaltsofNitrogenandPhosphorusinSurfaceWaterofChineseGreatWallBayandItsAdjacentSeaArea,Antarctica,duringAustralSummerof1993/1994

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• 出版年：1998
• 作者：CHEN Hao-Wen；ZHU Ming-Yuan；HONG Xu-Guang； LU Hua；YUAN Jun-Feng
• 单位1：The First Institute of Oceanography
• 语种：英文
• 作者关键词：Chinese Great Wall Bay and its adjacent sea area in Antarctica；surface sea water；inor-ganic nutrient salts of nitrogen and phosphorus
• 起始页：306
• 总页数：6
• 刊名：冰川冻土
• 是否内版：否
• 刊频：季刊
• 创刊时间：1979
• 主办单位：中国地理学会中国科学院兰州冰川冻土研究所
• 主编：黄茂桓
• 地址：兰洲市东岗西路260号
• 邮编：730000
• 卷：20
• 期：4
• 核心期刊：中国自然科学核心期刊

摘要

The concentrations and distributions of four species of inorganic nutrient salts in surfacesea water of Chinese Great Wall Bay and its adjacent sea area, Antarctica were surveyed during austrasummers of 1993～1994 The results obtained are as follows； The general concentrations of NH⁴-N, NO³-N, NO²-N and PO⁴-P are 2.13, 7.07, 0.74 and 1.12μg. dm_-3，respectively．Generally speaking, the concentrations are higher inside the Bay than those out-side and the higher values of those inorganic salts often appear in December. The time for the stationwhere their higher and lower concentrations appear are not completely the same. The descending orderof the magnitudes of EN/P value according to the arrangement monthly is：Dec. Feb.Jan.The varia-tions of water temperature are mostly consist with the concentrations of NH⁴-N, PO⁴-P and EN/P, butnot often with NO²-N. The low concentrations of nutrient salts as shown in some satations may be relat-ed with absorption by phytoplankton,perhaps including autotrophic bacteria． The results suggest that the area surveyed has a typical characteristic of an inner shallow waterbay, sub-Antarctica．The nutrients needed for phytoplankton are sufficien， and the Bay surveyed isstill in a normal condition.