Results 181 to 190 of about 106,600 (223)

Denitrification in tidal flat sediment, Yangtze estuary

Science in China Series B: Chemistry, 2007
Sediment denitrification rates at six Yangtze River estuary tidal flat locations (mudflats and salt marshes) were measured from July 2003 to October 2004. In winter and summer, spatial distribution of denitrification rates was not great in the Yangtze estuary, while in spring and autumn, denitrification rates had a great spatial distribution because of
DongQi Wang, ZhenLou Chen, ShiYuan Xu, LiangJun Da, ChunJuan Bi, Jun Wang   +5 more
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[Study on nanoparticles in Yangtze Estuary].

Huan jing ke xue= Huanjing kexue, 2012
Filtration and cross-flow ultrafiltration (CFUF) was applied for the effective separation of NPs in the Yangtze Estuary. The physiochemical properties of NP were characterized, and their relationships with environmental factors were further studied in the present study.
Jia-Lu, Fu, Yi, Yang, Huan, Peng, Li-Min, Zhou, Li-Jun, Hou, Min, Liu   +5 more
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Observations of the Boundary Layer Characteristics at the Yangtze Estuary

Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B, 2009
Measurements of the flow velocity profiles through one tidal cycle were taken in the Yangtze Estuary. The flow velocity profile during the experiment was characteristic of a tidal boundary layer growing through the tide, and with increasing velocity, especially on the accelerating flood tide.
Jialing Hao, Jinhai Zheng, Wei Zhang
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Upwelling off Yangtze River estuary in summer

Journal of Geophysical Research: Oceans, 2006
The mechanisms of upwelling off the Yangtze River estuary (YRE) and in the adjacent waters in boreal summer are studied using numerical modeling. First, the persistent feature of this phenomenon is confirmed using cruise observations, satellite sea surface temperature (SST), and SST climatologic data.
Xingang Lü, Fangli Qiao, Changshui Xia, Jianrong Zhu, Yeli Yuan   +4 more
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In situ nitrogen removal processes in intertidal wetlands of the Yangtze Estuary

Journal of Environmental Sciences, 2020
Estuarine and intertidal wetlands are important sites for nitrogen transformation and elimination. However, the factors controlling nitrogen removal processes remain largely uncertain in the highly dynamic environments. In this study, continuous-flow experiment combined with 15N isotope pairing technique was used to investigate in situ rates of ...
Cheng Liu, Lijun Hou, Min Liu, Yanling Zheng, Guoyu Yin, Hongpo Dong, Xia Liang, Xiaofei Li, Dengzhou Gao, Zongxiao Zhang   +9 more
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Emission of phosphine in intertidal marshes of the Yangtze Estuary

Applied Geochemistry, 2011
Abstract Emission of phosphine, a gaseous form of P, is presently considered a potential pathway of the P biogeochemical cycle in aquatic sediments. This study investigated the emission fluxes of phosphine and its potential production mechanisms in the intertidal marshes of the Yangtze Estuary.
L.J. Hou, M. Liu, J.L. Zhou, Y. Yang, D. Zhao, G.Y. Yin, Y.L. Zheng   +6 more
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Morphodynamic Simulation at the South Branch of Yangtze Estuary

Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B, 2009
In this paper a numerical morphodynamic model TIMOR3 has been introduced and applied to simulate the morphological response to the water and sediment changes in the Yangtze River Estuary. TIMOR3, coupled with Hydrodynamic Model and Wave Model, is used to simulate a long-term and huge area of the morphological changes in the Yangtze River Estuary.
Xiaoyan Zhou, Ulrich Zanke, Yixin Yan, Jinhai Zheng   +3 more
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Annual cycle of hypoxia off the Changjiang (Yangtze River) Estuary

Marine Environmental Research, 2012
The annual cycle of hypoxia off the Changjiang Estuary, China, was assessed from data acquired during nine cruises in 2006-2007. Hypoxia began to develop in late spring and early summer, reached its maximum in August, weakened in the autumn and finally disappeared in the winter.
Baodong, Wang, Qinsheng, Wei, Jianfang, Chen, Linping, Xie   +3 more
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Spatial and seasonal distribution of organochlorine pesticides in the sediments of the Yangtze Estuary

Chemosphere, 2014
The spatial and seasonal distribution of organochlorine pesticides (OCPs) in the sediments of the Yangtze Estuary was investigated. The total concentration of 19 OCPs (∑OCPs), including α-HCH, β-HCH, γ-HCH, δ-HCH, o, p'-DDE, p, p'-DDE, o, p'-DDD, p, p'-DDD, o, p'-DDT, p, p'-DDT, heptachlor, aldrin, heptachlor epoxide (Isomer B, Isomer A), endosulfan I,
Yangyang Li, Junfeng Niu, Zhenyao Shen, Chi Zhang, Zhengzao Wang, Tiande He   +5 more
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Identification and apportionment of hazardous elements in the sediments in the Yangtze River estuary

Environmental Science and Pollution Research, 2015
In this study, positive matrix factorization (PMF) and principal components analysis (PCA) were combined to identify and apportion pollution-based sources of hazardous elements in the surface sediments in the Yangtze River estuary (YRE). Source identification analysis indicated that PC1, including Al, Fe, Mn, Cr, Ni, As, Cu, and Zn, can be defined as a
Jiawei, Wang, Ruimin, Liu, Haotian, Wang, Wenwen, Yu, Fei, Xu, Zhenyao, Shen   +5 more
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