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汉江中下游硅藻水华研究进展与展望
引用本文:李建,尹炜,贾海燕,辛小康.汉江中下游硅藻水华研究进展与展望[J].水生态学杂志,2020,41(5):136-146.
作者姓名:李建  尹炜  贾海燕  辛小康
作者单位:长江水资源保护科学研究所,长江水资源保护科学研究所,长江水资源保护科学研究所,长江水资源保护科学研究所
基金项目:国家重点研发计划项目(2017YFC0404502)
摘    要:汉江流域是多个引调水工程水源地,在国家水资源配置战略中具有重要地位,其水质安全问题一直备受关注。汉江中下游自1992年首次爆发水华以来,水华事件已累计发生10余次,给沿岸居民生产生活带来严重影响。本文系统调研了汉江水华相关研究进展,归纳分析了汉江中下游水华优势藻种及其生物学特性,统计分析了汉江中下游历次水华的发生特征,从营养盐、水文水动力、气象等条件方面归纳了现有研究成果中对于汉江中下游水华爆发成因的解释,总结了汉江中下游水华预测相关模型及水华可调控环境因子的阈值。当前汉江中下游水华防控面临新的挑战,未来仍需在环境因子对硅藻水华生消的影响机理、水华预测模型与方法、水华预警和抑制水华生态调度技术等方面继续开展深入研究。

关 键 词:水华  研究进展  汉江中下游  硅藻
收稿时间:2020/5/1 0:00:00
修稿时间:2020/9/22 0:00:00

Research Progress on Diatom Blooms in the Middle and Lower Hanjiang River: Review and Advances
LI Jian,YIN Wei,JIA Hai-yan,XIN Xiao-kang.Research Progress on Diatom Blooms in the Middle and Lower Hanjiang River: Review and Advances[J].Journal of Hydroecology,2020,41(5):136-146.
Authors:LI Jian  YIN Wei  JIA Hai-yan  XIN Xiao-kang
Affiliation:Changjiang Water Resources Protection Institute,Changjiang Water Resources Protection Institute,Changjiang Water Resources Protection Institute,Changjiang Water Resources Protection Institute
Abstract:The Hanjiang River is the water source for many water diversion projects, and thus plays an important role in the national water resource allocation strategy. In recent years, algal blooms have broken out frequently in the middle and lower Hanjiang River and its water quality has received increasing attention. Since the first outbreak in 1992, 10 large algal blooms were documented up to 2018, seriously affecting the local population. In this review, we systematically summarize research advances on algal blooms in the Hanjiang River, including the dominant algae species and their biological characteristics, the occurrence characteristics and driving forces, and the advances in algal bloom prediction and control. The algal blooms have mainly occurred below Shuangshui hydrologic station on the lower Hanjiang River in spring (January- March), with diatoms as the dominant species. Many studies have revealed that excessive inputs of nitrogen and phosphorus, slow flow conditions and suitable climatic conditions (light intensity, air temperature and rainfall) are the primary environmental factors producing the spring algae blooms. Extensive research has also been carried out on predicting and modeling algae blooms to prevent and control the booms. However, the hydrology, water quality and ecology of Hanjiang River are constantly changing due to human activities and climate change. This presents a serious challenge for preventing and controlling algal blooms in the Han River. For this reason, research on the mechanism and environmental factors driving diatom blooms, algal bloom prediction and modeling, early warning of algae bloom occurrence must continue, along with additional environmental regulations that will suppress diatom blooms.
Keywords:algal blooms  review  the middle and lower Han River  diatom
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