海洋学报(中文版)
海洋學報(中文版)
해양학보(중문판)
ACTA OCEANOLOGICA SINICA
2014年
10期
80-89
,共10页
季仲强%高生泉%金海燕%何剑锋%白有成%王斌%杨志%陈建芳
季仲彊%高生泉%金海燕%何劍鋒%白有成%王斌%楊誌%陳建芳
계중강%고생천%금해연%하검봉%백유성%왕빈%양지%진건방
北极%王湾%营养盐特征%水团
北極%王灣%營養鹽特徵%水糰
북겁%왕만%영양염특정%수단
Arctic%Kongsfjorden%nutrients%water mass
王湾海域位于北极斯瓦尔巴群岛西北侧,其水体特征主要受到北极冰川与大西洋的共同影响。为了研究冰川融水与大西洋水对王湾营养盐分布以及生态系统的影响,在2010年夏季黄河站考察期间,对王湾海水与地表径流进行采样分析,并测定了营养盐和叶绿素 a。结果表明:2010年夏季王湾是大西洋水影响较弱的年份,以低温低盐高营养盐的本地变异水为主导。2010年7月王湾水体可以划分为4个水团,表层水(SW)、中层变异水(TIW)、本地变异水(TLW)和大西洋变异水(TAW ),其中,表层水与中层变异水营养盐浓度较低,随着深度增加,本地变异水与大西洋变异水营养盐浓度都较高。大西洋变异水主要影响200 m 以深水柱,其营养盐浓度低于本地变异水影响的底部值,本地变异水中营养盐浓度的增加主要来自于颗粒物中营养盐的再生。表层水主要来源于地表径流与冰川融水,这些淡水输入与浮游植物的初级生产作用共同决定了表层水的营养盐浓度水平及结构。本地变异水中在水深100 m 上下出现的铵盐高值可能与浮游动物和/或微生物的代谢过程有关。
王灣海域位于北極斯瓦爾巴群島西北側,其水體特徵主要受到北極冰川與大西洋的共同影響。為瞭研究冰川融水與大西洋水對王灣營養鹽分佈以及生態繫統的影響,在2010年夏季黃河站攷察期間,對王灣海水與地錶徑流進行採樣分析,併測定瞭營養鹽和葉綠素 a。結果錶明:2010年夏季王灣是大西洋水影響較弱的年份,以低溫低鹽高營養鹽的本地變異水為主導。2010年7月王灣水體可以劃分為4箇水糰,錶層水(SW)、中層變異水(TIW)、本地變異水(TLW)和大西洋變異水(TAW ),其中,錶層水與中層變異水營養鹽濃度較低,隨著深度增加,本地變異水與大西洋變異水營養鹽濃度都較高。大西洋變異水主要影響200 m 以深水柱,其營養鹽濃度低于本地變異水影響的底部值,本地變異水中營養鹽濃度的增加主要來自于顆粒物中營養鹽的再生。錶層水主要來源于地錶徑流與冰川融水,這些淡水輸入與浮遊植物的初級生產作用共同決定瞭錶層水的營養鹽濃度水平及結構。本地變異水中在水深100 m 上下齣現的銨鹽高值可能與浮遊動物和/或微生物的代謝過程有關。
왕만해역위우북겁사와이파군도서북측,기수체특정주요수도북겁빙천여대서양적공동영향。위료연구빙천융수여대서양수대왕만영양염분포이급생태계통적영향,재2010년하계황하참고찰기간,대왕만해수여지표경류진행채양분석,병측정료영양염화협록소 a。결과표명:2010년하계왕만시대서양수영향교약적년빈,이저온저염고영양염적본지변이수위주도。2010년7월왕만수체가이화분위4개수단,표층수(SW)、중층변이수(TIW)、본지변이수(TLW)화대서양변이수(TAW ),기중,표층수여중층변이수영양염농도교저,수착심도증가,본지변이수여대서양변이수영양염농도도교고。대서양변이수주요영향200 m 이심수주,기영양염농도저우본지변이수영향적저부치,본지변이수중영양염농도적증가주요래자우과립물중영양염적재생。표층수주요래원우지표경류여빙천융수,저사담수수입여부유식물적초급생산작용공동결정료표층수적영양염농도수평급결구。본지변이수중재수심100 m 상하출현적안염고치가능여부유동물화/혹미생물적대사과정유관。
Kongsfjorden is located in the northwest of Svalbard,Arctic,and the water is affected by Arctic glacier and the Atlantic Ocean.In order to study the affects of glacier water and Atlantic water on distribution of nutrients and the ecosystem in Kongsfjorden,seawater and runoff water were sampled and analyzed for the nutrients and Chloro-phyll a during the Yellow River Station expedition in summer 2010.The results showed that,it was a weak year of the Atlantic water in kongsfjorden 2010,and the transformed local water with low temperature,low salinity and high nutrients was in control.The Kongsfjorden water in July 2010 could be divided into 4 water masses,including surface water (SW),transformed intermediate water (TIW),transformed local water (TLW)and transformed At-lantic water (TAW ),of which,the nutrient concentration were low in SW and TIW,while,as the depth went dee-per,nutrient concentrations were higher in TLW and TAW .The water column below 200 m was mainly controlled by TAW ,and its nutrient concentration was lower than those in the bottom of TLW.The higher nutrients of TLW were mainly derived from the nutrient regeneration of the particulates in the water column.The glacier melting wa-ter and runoff water controlled the SW,and these freshwater inputs and the primary production of the phytoplank-ton together determined the nutrient concentrations and structures in SW.In the water column at about 100 m of TLW,the high ammonia concentration was connected with the metabolic processes of the zooplankton and/or mi-croorganism.