不同养殖方式下底泥中硫与重金属的环境行为

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	不同养殖方式下底泥中硫与重金属的环境行为
	李兆冉 1,2; 盛彦清 2
刊名	环境科学与技术
	2023
卷号	46 期号:4 页码:158-165
关键词	养殖方式硫重金属分布特征相互关系
ISSN号	1003-6504
其他题名	Environmental Behavior of Sulfur and Heavy Metal in Sediments of Aquaculture-pond with Cultivation of Different Methods
文献子类	期刊论文
英文摘要	In this case study,sea cucumber is bred adopting two different methods which involve two different types of aquaculture ponds:semi-open pond,sealing pond.To explore the environment behavior of pollutants in the sediments of two types of ponds,a research was conducted to analyze the distribution characteristics of sulfur and heavy metal and correlation between them.The results showed that content of the form of reduced inorganic sulfide (RIS) in the sealing pond was relatively high,and transformation from acid volatile sulfide (AVS) to chromium (Ⅱ)-reducible sulfur (CRS) was impeded to a certain degree;however,in semi-opened pond AVS could be effectively converted into CRS.Affected by TOC content and the strength of hydraulic disturbance,environmental risk of sulfide in semi-opened pond was less,and with the extension of aquaculture time,the environmental risk of sediment in the sealing pond would increase.Heavy metal in sediment was in close relation with TOC probably due to the degradation of natural baits and organic insecticides.As for heavy metals (Cr,Cu,Zn and Cd) in the sediments,their dominant forms were totally in residual fraction state,while the dominant form of Pb belonged to the reducible fraction state.It appeared that the cultivation methods slightly affected the morphological distribution of heavy metals;in evaluating the pollution level of heavy metal,the results depended on the evaluation methodology,i.e.,the results obtained may differ when using different evaluation methods.In summary,more attention should be given to Cd contamination in this study areas,and there existed a significant positive correlation between AVS and the bio-available form of Cu in sediment,which indicated that AVS could effectively restrain the biological toxicity of Cu.However,the negative correlation between CRS and the bio-available form of Pb was notable,indicating that the increase of Pb bio-availability is not conducive to the formation of CRS.
语种	中文
CSCD记录号	CSCD:7487161
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34166]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院大学,北京100049 2.中国科学院烟台海岸带研究所,山东省海岸带环境工程技术研究中心,山东烟台264003;
推荐引用方式 GB/T 7714	李兆冉,盛彦清. 不同养殖方式下底泥中硫与重金属的环境行为[J]. 环境科学与技术,2023,46(4):158-165.
APA	李兆冉,&盛彦清.(2023).不同养殖方式下底泥中硫与重金属的环境行为.环境科学与技术,46(4),158-165.
MLA	李兆冉,et al."不同养殖方式下底泥中硫与重金属的环境行为".环境科学与技术 46.4(2023):158-165.