Multi-factor identification and modelling analyses for managing large river algal blooms
Multi-factor identification and modelling analyses for managing large river algal blooms
复制标题
治理大型河流藻华的多因素识别和建模分析
DOI：
10.1016/j.envpol.2019.113056
复制
发表时间：
2019
影响因子：
8.9
通讯作者：
Yang Zhongwen
中科院分区：
文献类型：
--
作者：
Xia Rui;Zhang Yuan;Wang Gangsheng;Zhang Yongyong;Dou Ming;Hou Xikang;Qiao Yunfeng;Wang Qiang;Yang Zhongwen
近几十年来，河流藻类水华已成为一个新兴的全球环境问题。与湖泊和水库的水体富营养化相比，大型水系中的藻类水华在流域尺度上会对流域生态系统造成更严重的后果。然而，由于其复杂的相互作用机制受多种因素的影响，揭示河流藻类水华发生的原因在水文-生态-环境的交叉学科研究中仍然具有挑战性。此外，在河藻水华的特征、影响、驱动因素以及适用的水系模型方面仍存在相当大的不确定性。在本文中，我们回顾了现有的文献，阐述了河流藻华的定义和负面影响。我们分析了营养、水文和气候因素等敏感因素。探讨了生态水文模型在复杂水文条件下的应用。最后，通过气候变化和人类活动影响下的物理和生物地球化学过程的相互作用，探讨了河藻水华的本质。考虑多因素影响的模型-数据集成可望为大水系水华的防治提供科学指导。
River algal blooms have become a newly emerging global environmental issue in recent decades. Compared with water eutrophication in lakes and reservoirs, algal blooms in large river systems can cause more severe consequences to watershed ecosystems at the watershed scale. However, reveal the causes of river algal blooms remains challenging in the interdisciplinary of hydrological-ecological-environmental research, due to its complex interaction mechanisms impacted by multiple factors. In addition, there were still considerable uncertainties on the characteristics, impacts, driving factors, as well as the applicable water system models for river algal blooms. In this paper, we reviewed existing literature to elaborate the definition and negative effects of river algal blooms. We analyzed sensitive factors including nutrient, hydrological and climatic elements. We also discussed the application of ecohydrological models under complicated hydrological conditions. Finally, we explored the essence of the river algal bloom by the interaction effects of physical and biogeochemical process impacted by of climate change and human activities. The model-data integration accounting for multi-factor effects was expected to provide scientific guidance for the prevent and control of algal blooms in large river systems.