Regime shifts of hydrometeorological factors in the Jiaozhou Bay and their potential ecological impacts  

作　　者：LIU Zhe ZHANG Jing WEI Hao LIU Dongyan 

机构地区：[1]Key Laboratory of Marine Environment and Ecology(Ocean University of China),Ministry of Education [2]State Key Laboratory of Estuarine and Coastal Research,East China Normal University [3]College of Marine Science and Engineering,Tianjin University of Science and Technology [4]Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences

出　　处：《Chinese Journal Of Geochemistry》2013年第4期436-445,共10页中国地球化学学报

基　　金：financially supported jointly by the National Natural Science Foundation of China(Grant No.40036010);the Special Fund for Public Welfare Industry(Oceanography)(Grant No.200805011)

摘　　要：The wavelet transform was applied to studying the regime shifts of hydrometeorological factors(i.e.,precipitation,air temperature,sea surface temperature and sea surface salinity)during the period of 1961–2000 in the Jiaozhou Bay(JZB).The results indicated clearly that these factors show variability of multiple timescales,with interannual and decadal periods.The local abrupt changes such as the 1978–1979 and 1988–1989 shifts feature the physical environment variation,which is consistent with the Southern Oscillation and Arctic Oscillation in the northern hemisphere.In regard to the JZB ecosystem,the benthic diatom cell abundance(BEN)showed a decrease shift in1978–1979,which is closely related to the precipitation abrupt decrease,while the shellfish mortality disaster in the JZB greatly released the predating pressure of diatom growth,possibly resulting in BEN increase shift in 1995.The wavelet transform was applied to studying the regime shifts of hydrometeorological factors （i.e., precipitation, air temperature, sea surface temperature and sea surface salinity） during the period of 1961-2000 in the Jiaozhou Bay （JZB）. The results indicated clearly that these factors show variability of multiple timescales, with interannual and decadal periods. The local abrupt changes such as the 1978-1979 and 1988-1989 shifts feature the physical environment variation, which is consistent with the Southern Oscillation and Arctic Oscillation in the north- em hemisphere. In regard to the JZB ecosystem, the benthic diatom cell abundance （BEN） showed a decrease shift in 1978-1979, which is closely related to the precipitation abrupt decrease, while the shellfish mortality disaster in the JZB greatly released the predating pressure of diatom growth, possibly resulting in BEN increase shift in 1995.

关 键 词：水文气象要素 胶州湾 生态影响 气象因素 政权 小波变换 时间尺度 物理环境 

分 类 号：X820.3[环境科学与工程—环境工程]