Zhang said tension between the mainland and Taiwan has been caused by the Taiwan authority's failure to recognize the 1992 Consensus.
Zhao Li, a lawyer at Beijing-based Capital Equity Legal Group, thought Ou himself should be responsible, while the urban patrol officers' behaviors were indirect factors.
Zhang said after arriving at Macao International Airport that this visit could be summed up in three words, "to feel, see and encourage".
Zhejiang tested the practice in 2008 and expanded it across the whole province in 2013 and there are now 61,000 river chiefs there.
Zhang's company is also planning to replace all its vehicles with new energy ones in the next five years.
Zhang said he can earn about 20,000 yuan every year by having his photo taken with tourists.
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Zhou Lihua and Liu Kun in Wuhan contributed to the story.
Zhou Dadi, a senior researcher at the China Energy Research Society, said: "During the past two years, China's photovoltaic industry has made great progress. Newly installed capacity reached over 40,000 megawatts and 50,000 MW in 2018 and 2017 respectively, which was unexpected."
Zhang said a similar event will also be launched soon in Hangzhou, Zhejiang province, Shenzhen, Guangdong province, and Beijing.
Zhongjie Street is located in central Shenyang and is one of the oldest streets in China, with a history of more than 400 years.