Junhong Bai

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Despite their value, coastal ecosystems are globally threatened by anthropogenic impacts, yet how these impacts are driven by economic development is not well understood. We compiled a multifaceted dataset to quantify coastal trends and examine the role of economic growth in China's coastal degradation since the 1950s. Although China's coastal population(More)
In this study, the temporal and spatial trends of ten antibiotics belong to four different groups in aqueous and sediment matrices were investigated in the intertidal zone of Bohai Bay as a single object. The total concentrations of those antibiotics ranged from 41.53 to 222.43 ng L−1 and 7.71 to 130.36 ng g−1 in the surface water and sediment,(More)
Copyright © 2013 Junhong Bai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Wetlands are among the most important ecosystems on earth and functioned as the " kidneys " of the earth,(More)
Surface soils (0–20 cm) were collected at five sampling sites along a 250-m sampling zone perpendicular to a tidal creek in the T. chinensis wetland of the Yellow River Delta of China in June, August and November of 2007 and April of 2008. Soils were assessed for the spatial and temporal distributions of metals (As, Ni, Cr, Zn, Pb, Cd and Cu) and the(More)
Anthropogenic activities are substantially changing coastal wetland ecosystems globally. In developing countries such as China, a number of anthropogenic factors associated with rapid population growth and economic development threaten coastal wetlands. In China, notably, coastal wetlands have been increasingly lost to reclamations that are widely adopted(More)
To investigate the spatial and seasonal variations of soil organic carbon (SOC) and total nitrogen (TN) contents and stocks in tidal salt marsh soils, 15 cores to a depth of 40 cm were collected in five sampling sites along a sampling belt during three seasons. Our results showed that higher SOC and TN contents occurred in the surface soils in three(More)
A field experiment was conducted on three different water levels and four salinity levels to investigate the effects of water level and salinity on the total sulfur (TS) content of marsh soil in the Yellow River Delta of China. The total sulfur content of surface and subsurface soils from incubated soil cores were measured under different water and salinity(More)
Soil nitrogen (N) mineralization in wetlands is sensitive to various environmental factors. To compare the effects of salinity and temperature on N mineralization, wetland soils from a tidal freshwater marsh locating in the Yellow River Delta was incubated over a 48-d anaerobic incubation period under four salinity concentrations (0, 10, 20 and 35‰) and(More)
This study was carried out in three kinds of salt marshes according to the vegetation covers, including Phragmites australis salt marsh (PSM), Suaeda salus salt marsh (SSM) and Tamarix chinensis-Suaeda salus salt marsh (TSSM). We applied allometric function, exponential function and logistic function to model the depth distribution of the SOCv and SOCc for(More)