摘要
水华是一段时期内浮游植物种群丰度和生物量快速、显著增加的过程,其对整个海域的初级生产力水平和各生源要素循环等均有重要影响。水华发生的机制非常复杂,通常与水动力条件、气象条件、温度、盐度分布与变化、营养盐的补充与循环、浮游植物种类特征等因素密切相关。本文从湍流混合及垂直对流、浮游动物的摄食作用、光合作用有效光强和营养盐对浮游植物生长的影响和多因素的共同作用等方面综述了国内外水华机制研究的进展和现状,分析了中国近海海域水华机制研究所面临的问题。需要结合海上观测、卫星遥感、模式模拟等手段对浮游植物水华进行综合全面的研究。
An algal bloom is defined as a relatively rapid increase in the biomass of phytoplankton in an aquatic system. It plays a crucial role in the primary production and the cycling of biogenic elements in the whole area. The mechanisms of algal bloom are very complicated, usually closely related to the hydrodynamic conditions, atmospheric forcing, distributions and variations of temperature and salinity, cycling and supplement of nutrients and the composition of the phytoplankton assemblage. A brief review on the phytoplankton blooms' mechanism research and current situation is given from different aspects, including mixing and vertical advection, zooplankton predation, photosynthetically active radiation and nutrients etc. The scientific issues which researchers are faced in understanding the mechanisms of phytoplankton blooms in China coastal seas are analyzed. The phytoplankton bloom research will be studied further by using in-situ observation, remote sensing and numerical modeling methods.
出处
《中国海洋大学学报(自然科学版)》
CAS
CSCD
北大核心
2008年第4期527-532,共6页
Periodical of Ocean University of China
基金
国家基础研究规划重点项目:近海重要界面的物质交换过程(2006CB400602)资助
关键词
浮游植物
水华
动力机制
生态模型
phytoplankton
algal bloom
physical mechanism
biological model