Evaluating the effect of dam construction on the phosphorus fractions in sediments in a reservoir of drinking water source, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Evaluating the effect of dam construction on the phosphorus fractions in sediments in a reservoir of drinking water source, China
	Qin, Lihuan; Lei, Pei; Lei, Qiuliang; Liu, Hongbin; Li, Xuyong; Zhang, Hong; Lindsey, Stuart
刊名	ENVIRONMENTAL MONITORING AND ASSESSMENT
	2020-01-07
卷号	192 期号:2 页码:1-7
关键词	Phosphorus fraction Miyun Reservoir Dam Sediment Eutrophication
ISSN号	0167-6369
英文摘要	It is widely acknowledged that dams affect sediment transport and water quality. To support water management of reservoirs, it is useful to explore how the fractions of phosphorus (P) in sediments were changed after the dam was built. The aim of this study was to assess the spatial and temporal trends of the P fractions in sediments from the Miyun Reservoir, a pivotal drinking water supply for Beijing City, the capital of China. Nine surface sediment samples, together with a sediment core, were collected. The concentrations of total P (TP) and their fractions were then determined by using a sequential extraction method. The results showed that the reservoir was classified into three areas spatially based on the TP concentrations, i.e., high (Baihe area), medium (transitional area), and low (Chaohe area) concentrations. The concentrations of iron-bound P (BD-P) and metal oxide-bound P (NaOH-P) were higher in the Baihe and Chaohe regions than those in the transitional area and tended to increase with water depth. Dam construction can lead to the concentrations of P increased in sediments and further increase the potential of internal P loadings. This study revealed the effect of dam construction on sedimentary P accumulation. The results will be helpful in better understanding the mobility and bioavailability of P in the aquatic ecosystem, which aim to achieve a more highly targeted environmental management for this important region.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44305]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Qin, Lihuan,Lei, Pei,Lei, Qiuliang,et al. Evaluating the effect of dam construction on the phosphorus fractions in sediments in a reservoir of drinking water source, China[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2020,192(2):1-7.
APA	Qin, Lihuan.,Lei, Pei.,Lei, Qiuliang.,Liu, Hongbin.,Li, Xuyong.,...&Lindsey, Stuart.(2020).Evaluating the effect of dam construction on the phosphorus fractions in sediments in a reservoir of drinking water source, China.ENVIRONMENTAL MONITORING AND ASSESSMENT,192(2),1-7.
MLA	Qin, Lihuan,et al."Evaluating the effect of dam construction on the phosphorus fractions in sediments in a reservoir of drinking water source, China".ENVIRONMENTAL MONITORING AND ASSESSMENT 192.2(2020):1-7.