| 汉江中下游硅藻水华研究进展与展望 |
| Research Progress on Diatom Blooms in the Middle and Lower Hanjiang River: Review and Advances |
| 投稿时间：2020-05-01 修订日期：2020-09-22 |
| DOI：10.15928/j.1674-3075.2020.05.016 |
| 中文关键词:水华 研究进展 汉江中下游 硅藻 |
| 英文关键词:algal bloom research review middle and lower Hanjiang River diatom |
| 基金项目:国家重点研发计划项目（2017YFC0404502） |
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| 中文摘要: |
| 汉江中下游1992年首次暴发水华，至2018年已累计发生10余次。汉江水华的优势藻种为硅藻，暴发时间主要集中在春季1-3月，水华发生河段主要分布在皇庄水文站以下的汉江下游，丹江口至皇庄区间的汉江中游河段水华发生频次较少。从汉江水华优势藻种及其生物学特性、水华暴发特征与成因、水华的预测与调控等方面对目前的研究成果进行系统总结。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深入研究。 |
| 英文摘要: |
| 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. |
| 李建,尹炜,贾海燕,辛小康.2020.汉江中下游硅藻水华研究进展与展望[J].水生态学杂志,41(5):136-146. |
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