Wu Mei-Lin, Wang You-Shao, Gu Ji-Dong
State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China.
Daya Bay Marine Biology Research Station, Chinese Academy of Sciences, Shenzhen, 518121, China.
Ecotoxicology. 2015 Oct;24(7-8):1632-42. doi: 10.1007/s10646-015-1453-5. Epub 2015 Apr 7.
In this study, artificial neural network such as a self-organizing map (SOM) was used to assess for the effects caused by climate change and human activities on the water quality in Daya Bay, South China Sea. SOM has identified the anthropogenic effects and seasonal characters of water quality. SOM grouped the four seasons as four groups (winter, spring, summer and autumn). The Southeast Asian monsoons, northeasterly from October to the next April and southwesterly from May to September have also an important influence on the water quality in Daya Bay. Spatial pattern is mainly related to anthropogenic activities and hydrodynamics conditions. In spatial characteristics, the water quality in Daya Bay was divided into two groups by chemometrics. The monitoring stations (S3, S8, S10 and S11) were in these area (Dapeng Ao, Aotou Harbor) and northeast parts of Daya Bay, which are areas of human activity. The thermal pollution has been observed near water body in Daya Bay Nuclear Power Plant (S5). The rest of the monitoring sites were in the south, central and eastern parts of Daya Bay, which are areas that experience water exchanges from South China Sea. The results of this study may provide information on the spatial and temporal patterns in Daya Bay. Further research will be carry out more research concerning functional changes in the bay ecology with respect to changes in climatic factor, human activities and bay morphology in Daya Bay.
在本研究中，使用了诸如自组织映射（SOM）之类的人工神经网络来评估气候变化和人类活动对中国南海大亚湾水质的影响。SOM已识别出水质的人为影响和季节特征。SOM将四季分为四组（冬季、春季、夏季和秋季）。东南亚季风，10月至次年4月为东北风，5月至9月为西南风，对大亚湾水质也有重要影响。空间格局主要与人为活动和水动力条件有关。在空间特征方面，通过化学计量学将大亚湾水质分为两组。监测站（S3、S8、S10和S11）位于这些区域（大鹏澳、澳头港）以及大亚湾东北部，这些都是人类活动区域。在大亚湾核电站（S5）附近水体已观测到热污染。其余监测点位于大亚湾的南部、中部和东部，这些区域是与中国南海有水体交换的区域。本研究结果可为大亚湾的时空格局提供信息。未来将针对大亚湾气候因素、人类活动和海湾形态变化对海湾生态功能变化开展更多研究。
