象山港表层沉积物中营养元素的分布特征及影响因素
DISTRIBUTION CHARACTERISTICS AND CONTROLLING FACTORS OF NUTRIENTS IN SURFACE SEDIMENTS IN XIANGSHAN BAY
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摘要: 通过对象山港表层沉积物中不同形态氮、磷含量的调查,分析了该海区表层沉积物中氮、磷的分布特征,象山港表层沉积物中氮、磷含量较高,已对底栖生物产生生态毒性;海产养殖是造成本海域营养元素超标的最主要因素,也是控制营养元素在空间和时间上变化的主要因素.Abstract: Based on the monitoring data of different forms of N and P for the surface sediments from the Xiangshan bay,distribution characteristics,main influential factors and controlling processes for N and P were discussed.Results showed that contents of N and P in surface sediments were relatively high which had a poiso-nously effect to the benthic lives.Among the influential factors,mariculture was the main factor that caused the high level of nutrients contents,and controlled the spatial and temporal distribution characteristics of nutrient contents.
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Key words:
- nutrients /
- distribution characteristics /
- influential factors /
- Xiangshan bay
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