红海湾水产养殖示范区水质综合评价

Spatial Variation Trend and Assessment of Sea Water Quality of Mariculture Zone in Honghai Bay, Guangdong Province, China

红海湾是广东省非常重要的海水养殖示范区。为了维系和保护红海湾规模化水产养殖示范区的优良生态环境 ,1 997年 4月至 1 998年 1 2月对红海湾水域水质的时空变化趋势和质量状况进行了研究与评价。结果表明 ,红海湾海水综合质量总体上处于相对清洁水平 ,但浅海养殖区和长沙湾养殖区有机污染明显 ,分别达富营养化和高富营养化程度。DIN和IP是水质富营养化的主要因素 ,而石油类、Cu、COD是重点控制的优先污染物。

Honghai Bay is a very important mariculture demonstration zone in Guangdong province, China. In order to preserve the ecological environment and ensure the sustaining development of the mariculture demonstration zone, the study on spatial variation trend and assessment of the seawater quality were carried out in Honghai Bay from August of 1997 to December of 1998. The results showed that in general, the comprehensive quality of the sea water in Honghai Bay was at the relative clean level, but the sea water in the shallow sea mariculture area and Changsha Bay mariculture area were affected significantly by organic pollution, which reached eutrophication level and high-eutrophication level, respectively. DIN and IP were the major factors for eutrophication, while COD, TPH and Cu were the priority pollutants to be monitoed and controlled in Honghai Bay.