黄河三角洲潮间带营养盐的输送通量研究  

Transportation fluxes of nutrients in intertidal area of Yellow River Delta

作　　者：张鹏[1] 邹立[1,2] 姚晓[1] 郭新宇[3] 高会旺[1,2] 山口一岩[3] 

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]中国海洋大学海洋环境与生态教育部重点实验室,山东青岛266100 [3]日本爱媛大学海洋环境研究中心,日本松山7908577

出　　处：《海洋环境科学》2011年第1期76-80,104,共6页Marine Environmental Science

基　　金：国家自然科学基金委对外合作与交流项目(40711140114)

摘　　要：为研究潮间带区域营养盐的时空变化特点和输送通量,于2007年9月、2008年4月和2008年7月在黄河三角洲南部潮间带设置三个15 h连续站,监测溶解NO3-N、NH4-N、NO2-N、PO4-P、Si03-Si以及溶解总氮(DTN)和溶解总磷(DTP)含量。结果表明:(1)秋、春和夏季DTN的浓度范围分别为27.55～88.53μmol/L(平均为57.79μmol/L)、96.00～249.75μmol/L(平均为168.65μmol/L)和92.97～265.33μmol/L(平均为173.00μmol/L);DTP的浓度范围分别为0.22～3.14μmol/L(平均为1.05μmol/L)、1.04～5.27μmol/L(平均为2.41μmol/L)和1.40～8.03μmol/L(平均为4.60μmol/L)。(2)该潮间带区域N主要来自陆源输入;秋季DIP和DTP与陆源输入有关,而春季和夏季主要来自沉积物的释放;DISi来自陆源输入。(3)计算表明,该区域对开放海域水体的营养盐输送量(DIN为15.70×107μmol/m2,DIP为0.46×107μmol/m2)远大于沉积物对水体的营养盐补充(DIN为6415.36μmol/m2,DIP为5.28μmol/m2)和浮游植物的对营养盐的吸收(DIN为5235.13μmol/m2,DIP为147.77μmol/m2)。In order to address the seasonal and tidal variations and transportation fluxes of nutrients in the intertidal area of the Yellow River Delta,NO3-N,NH4-N,NO2-N,PO4-P,Si03-Si,DTN and DTP nutrients in the seawaters were collected and analyzed in Sep 2007,Apr 2008 and Jul 2008 by the anchor monitoring,respectively.The results showed that DTN was 27.55～88.53 μmol/L（averaged at 57.79 μmol/L）,96.00～249.75 μmol/L（averaged at 168.65 μmol/L） and 92.97～265.33 μmol/L（averaged at 173.00 μmol/L） in autumn,spring and summer correspondingly.DTP was 0.22～3.14 μmol/L（averaged at 1.05 μmol/L）,1.04～5.27 μmol/L（averaged at 2.41 μmol/L） and 1.40～8.03 μmol/L（averaged at 4.60 μmol/L）,respectively.It was suggested that DIN,DTN and DISi in this intertidal area primarily originated from the terrigenous input,while DIP and DTP originated from the terrigenous input in autumn,but contributed by the releasing from sediment in spring and summer.It was estimated that the average annual fluxes of nutrients from the intertidal area to open waters were much higher than that from sediments to overlying-waters and absorbed by the phytoplankton.

关 键 词：黄河三角洲 潮间带 营养盐 通量 

分 类 号：X834[环境科学与工程—环境工程]