The symposium with the title of “Our 20 Years Research in Lake Dianchi: Review and Prospect of Dianchi Water Environment Treatment and Ecological Restoration” was held in Kunming, Yunnan Province during August 3 and 6, 2019.

The symposium with the title of “Our 20 Years Research in Lake Dianchi: Review and Prospect of Dianchi Water Environment Treatment and Ecological Restoration” was held in Kunming, Yunnan Province during August 3 and 6, 2019. The symposium was organized by Institute of Hydrobiology (IHB) of Chinese Academy of Sciences and Dianchi Academy of Plateau Lake in Kunming.

The treatment of Lake Dianchi has been carried out for 20 years since IHB Prof. LIU Yongding hosted China’s first ecological environment protection and water pollution treatment project entitled “cyanobacterial blooms control technology in Lake Dianchi”.

More than 150 scholars and principals from 35 institutions and universities attended the symposium. Most of them were once engaged in the frontline of the Lake Dianchi Treatment.

The attendees reviewed the achievements over the past two decades in the treatment of Lake Dianchi and looked forward to the prospect of the water environment treatment and ecological restoration of Lake Dianchi.

IHB Prof. SONG Lirong gave a welcome speech at the opening ceremony. CHEN Xun, former vice-governor of Yunnan province and participated in the first Dianchi Treatment Project, reviewed the achievements over the past 20 years on the treatment of Lake Dianchi. He encouraged the young researchers continue to contribute to the all-round restoration of water ecological environment.

As one of the leading unit to be engaged in the treatment of Lake Dianchi, IHB’s deputy director Prof. MIAO Wei expressed his gratitude to the partners who once worked together for the lake treatment and improvement of the water quality of the lake.

IHB Prof. LIU Yongding gave a keynote speech to summarize the major achievements over the past 20 years. These fell into six aspects, i.e. the characteristics of Lake Dianchi's limnology and the theoretic issues of lake eutrophication; the fluctuation of contaminant sources and sinks in the watershed of Lake Dianchi; inflowing rivers of Lake Dianchi; bays, basins and sediments of Lake Dianchi; algae and water blooms of Lake Dianchi; and ecosystem and ecological restoration of Lake Dianchi.

14 oral presentations were given at the symposium, reporting almost every aspects of the treatment of Lake Dianchi.

In his closing remarks, Prof. Liu said this symposium was rewarding and encouraged the younger generations to be persistent in the study and treatment Lake Dianchi.

A collection of papers were compiled by the organizing committee from more than 300 papers on the 200+ tasks conducted by IHB and its partners and papers on the various aspects of the treatment of the lake during 1999 and 2019.