College of Resources and Environment, Yangtze University, Wuhan, China.
Guangdong Hydrogeology Battalion, Guangzhou, China.
Bull Environ Contam Toxicol. 2021 Feb;106(2):349-354. doi: 10.1007/s00128-020-03060-z. Epub 2020 Dec 1.
To investigate mangroves of different land use types in Nansha county, China, we analyzed the corresponding NO and CH emissions, water temperature, salinity, acidity and alkalinity, dissolved oxygen, redox potential, nitrate, nitrite, ammonia nitrogen, and organic matter at five sites. The removal rates of NO, NO, and NH in mangrove wetlands were 43.6%, 41.2%, and 65.0%; however, CH and NO emissions of mangrove affected by shrimp ponds are 2-3 times and 3-9 times more high than other wetlands. These results showed that, although mangrove wetlands can significantly reduce N, P, and other nutrient elements in shrimp pond wastewater, they can also significantly increase NO and CH emissions. This indicates that mangrove wetlands should be used with caution for the treatment of shrimp pond wastewater.
为了调查中国南沙县不同土地利用类型的红树林，我们分析了五个地点的相应 NO 和 CH 排放、水温度、盐度、酸度和碱度、溶解氧、氧化还原电位、硝酸盐、亚硝酸盐、氨氮和有机物。红树林湿地对 NO、NO 和 NH 的去除率分别为 43.6%、41.2%和 65.0%；然而，受虾塘影响的红树林湿地的 CH 和 NO 排放量比其他湿地高 2-3 倍和 3-9 倍。这些结果表明，尽管红树林湿地可以显著降低虾塘废水中的 N、P 和其他营养元素，但它们也可以显著增加 NO 和 CH 的排放。这表明，在处理虾塘废水时，应谨慎使用红树林湿地。
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