引江济太对太湖贡湖湾氧化亚氮通量的影响

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Abstract As the first station for monitoring the Yangtze River water diverted to Lake Taihu, Gonghu Bay was the best place to investigate the effects of water diversion on N₂O flux. Monthly measurements were conducted in Gonghu Bay and in the central zone of Lake Taihu from November 2011 to August 2013. N₂O flux in Gonghu Bay was significantly higher than that in central zone, with a mean value being 6.9 and 2.1μmol/(m²·d), respectively. However, the N₂O flux showed insignificant differences between these two zones when no water was diverted. Seasonal variability of the N₂O flux in these two zones were illustrated, which was negatively correlated with water temperature. Water diversion may complicate the effect of temperature on N₂O flux at Gonghu Bay. Water diversion increased the lake N₂O emission flux, while lake N₂O flux is controlled by multiple and interconnected internal and external factors, further studies are needed to explore the underlying control mechanisms.

Key words： water diversion from Yangtze River to Lake Taihu N₂O flux temporal variation spatial variation control mechanism

Received: 19 April 2020

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X511

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	Articles by authors
	LIU Zhen-jing
	XIAO Qi-tao
	HU Zheng-hua
	ZHANG Mi
	WANG Wei
	XIAO Wei

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LIU Zhen-jing,XIAO Qi-tao,HU Zheng-hua等. Effects of water diversion from Yangtze River to Lake Taihu on N₂O flux in Gonghu Bay, Lake Taihu[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(12): 5229-5236.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I12/5229

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