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| 1 | Methylmercury and sulfate-reducing bacteria in mangrove sediments from Jiulong River Estuary,China显示文摘Estuaries are important sites for mercury (Hg) methylation,with sulfate-reducing bacteria (SRB) thought to be the main Hg methylators.Distributions of total mercury (THg) and methylmercury (MeHg) in mangrove sediment and sediment core from Jiulong River Estuary Provincial Mangrove Reserve,China were determined and the possible mechanisms of Hg methylation and their controlling factors in mangrove sediments were investigated.Microbiological and geochemical parameters were also determined.Results showed that SRB constitute a small fraction of total bacteria (TB) in both surface sediments and the profile of sediments.The content of THg,MeHg,TB,and SRB were (350±150)ng/g,(0.47±0.11)ng/g,(1.4×10 11±4.1×109)cfu/g dry weight (dw),and (5.0×106±2.7×106)cfu/g dw in surficial sediments,respectively,and (240±24)ng/g,(0.30±0.15)ng/g,(1.9×1011± 4.2×1010)cfu/g dw,and (1.3×106± 2.0×106) cfu/g dw in sediment core,respectively.Results showed that THg,MeHg,TB,MeHg/THg,salinity and total sulfur (TS) increased with depth,but total organic matter (TOM),SRB,and pH decreased with depth.Concentrations of MeHg in sediments showed significant positive correlation with THg,salinity,TS,and MeHg/THg,and significant negative correlation with SRB,TOM,and pH.It was concluded that other microbes,rather than SRB,may also act as main Hg methylators in mangrove sediments. | Hao Wu Zhenhua Ding Yang Liu Jinling Liu Haiyu Yan Jiayong Pan Liuqiang Li Huina Lin Guanghui Lin Haoliang Lu | 2011 | Journal of Environmental Sciences2011，23，1： | 17 |
| 2 | Total mercury in wild fish in Guizhou reservoirs, China显示文摘The health hazard of mercury (Hg) compounds is internationally recognized, and the main pathways for methylmercury (MeHg) intake in humans are through consumption of food, especially fish. Given the large releases of Hg to the environment in China, combined with the fast development of hydropower, this issue deserves attention. Provided similar mobilization pathways of Hg in China as seen in reservoirs in North America and Europe one should expect increased Hg contamination in relation to future hydropower reservoir construction in this country. This study presents total Hg (THg) concentrations in wild fish from six Guizhou reservoirs, China. The THg concentrations in fish were generally low despite high background levels in the bedrock and depositions from local point sources. The over all mean ± SD concentration of THg was (0.066 ± 0.078) μg/g (n = 235). After adjusting for among-reservoir variation in THg, there were significant differences in THg among functional groups of the fish, assumed to re?ect trophic levels. Predicted THg- concentration ratios, retrieved from a mixed linear model, between the functional groups were 9:4:4:1 for carnivorous, omnivorous, planktivorous and herbivorous fish. This result indicated that MeHg accumulation may prevail even under circumstances with short food chains as in this Chinese water system. No fish exceeded recommended maximum THg limit for human consumption set by World Health Organization and the Standardization Administration of China (0.5 μg/g fish wet weight (ww)). Only six fish (2.5%) exceeded the maximum THg limit set by US Environmental Protection Agency (0.3 μg/g fish ww). | Haiyu Yan Atle Rustadbakken Heng Yao Thorjorn Larssen Xinbin Feng Ting Liu Lihai Shang Thrond O. Haugen | 2010 | Journal of Environmental Sciences2010，22，8： | 6 |
| 3 | Clinical value of contrast-enhanced ultrasound in improving diagnostic accuracy rate of transthoracic biopsy of anteriormedial mediastinal lesions显示文摘Objective: To evaluate the clinical value of contrast-enhanced ultrasound(CEUS) in transthoracic biopsy of anterior-medial mediastinal lesions.Methods: A total of 123 patients with anterior or middle mediastinum lesions required ultrasound guided transthoracic biopsy for pathological diagnosis. Among them, 72 patients received CEUS examinations before biopsy. After CEUS, 8 patients were excluded from biopsy and the rest 64 patients underwent biopsy(CEUS group). During the same period, 51 patients received biopsy without CEUS examination(US group). The ultrasonography characteristics, the number of biopsy puncture attempts, diagnostic accuracy rate and the incidence of complications were recorded and compared between the two groups.Results: A large portion of necrosis area or superficial large vessels was found in 8 patients, so the biopsy was cancelled. The internal necrosis was demonstrated in 43.8% of the lesions in CEUS group and in 11.8% of US group(P>0.001). For thymic carcinoma, CEUS increased the detection rate of internal necrosis and pericardial effusion than conventional ultrasound(62.5% vs. 18.8%, P=0.012; 56.3% vs. 12.5%, P=0.023). The average number of punctures in CEUS group and US group was 2.36±0.70 and 2.21±0.51 times, respectively(P>0.05). The diagnostic accuracy rate of biopsy in CEUS group(96.9%, 62/64) was significantly higher than that in US group(84.3%, 43/51)(P=0.022). In US group, 2 patients suffered from mediastinal bleeding(3.9%), while no major complications occurred in CEUS group.Conclusions: CEUS examination provided important information before transthoracic mediastinum biopsy and improved diagnostic accuracy rate in biopsy of anterior and middle mediastinum lesions than conventional ultrasound. | Jingjing Fu Wei Yang Song Wang Jing Bai Hao Wu Haiyue Wang Kun Yan Minhua Chen | 2016 | Chinese Journal of Cancer Research2016，28，6： | 5 |
| 4 | Distribution and speciation of mercury in the Hongfeng Reservoir,Guizhou Province, China显示文摘The water, pore water, sediment, and fish samples were collected from the Hongfeng Reservoir in No- vember 2003 and February 2004 in accordance with trace metal protocols. The average concentrations of total mer- cury (THg), dissolved mercury (DHg), reactive mercury, dissolved gaseous mercury, total methylmercury, and dis- solved methylmercury in the water columns were 8.00, 5.70, 0.63, 0.05, 0.16, and 0.07 ng/L, respectively. THg and DHg in the water columns, THg in pore water and THg in lake sediments of the Hongfeng Reservoir showed the level of mercury in the Hongfeng Reservoir was higher than in other natural waters in the world due to the loading of a lot of waste water with relatively high concentrations of mercury, whereas methylmercury concentrations in fish (wet weight) varied from 1.73–51.00 ng/g, much lower than in most remote lakes and reservoirs reported in northern Europe and North America. Methylmercury distributions in pore water and sediments showed methylation oc- curred mainly in the upper several centimeters of sediment cores in the Hongfeng Reservoir. The concentrations of dissolved organic carbon, total suspended particles, total Hg, and methylmercury were higher at Houwu than those at Daba in November 2003. It is suggested that other pollutants such as N and P from fishing farm and other waste water at Houwu,which resulted in deterioration of water quality, affected the concentrations and distributions of mercury species in the reservoir. | HE Tianrong FENG Xinbin GUO Yanna QIU Guangle YAN Haiyu MENG Bo | 2008 | Chinese Journal Of Geochemistry2008，27，1： | 5 |
| 5 | Seasonal distribution of total mercury and methylmercury in sediments of the Wujiangdu Reservoir,Guizhou,China显示文摘The concentrations of total mercury and methylmercury in sediments were determined at the dam of the Wujiangdu Reservoir in different seasons. Total mercury (HgT) levels in the whole sediment profile were 254.2±47.0 ng/g in winter, 254.2±31.6 ng/g in spring, and 256.7±60.8 ng/g in summer, without significant variations in different seasons or at different depths. In contrast, the methylmercury (MeHg) compounds were most abundant at the sediment-water interface and decreased progressively with depth. MeHg contents of the sediments during different seasons are highly dependent on microbial activity, and seem to be higher when Hg (II)-methylating microorganisms are active. Thus, MeHg levels tend to rise in the loci where nutrient supplies and biological productivity are favorable. The percentage of HgT that is present as MeHg in the sediments increased gradually from December 2003 to April 2004 and to July 2004. | JIANG Hongmei FENG Xinbin LI Guanghui QIU Guangle YAN Haiyu | 2007 | Chinese Journal Of Geochemistry2007，26，4： | 2 |
| 6 | Geochemical processes of mercury in Wujiangdu and Dongfeng reservoirs, Guizhou, China显示文摘 | Xinbin Feng Hongmei Jiang Guangle Qiu Haiyu Yan Guanghui Li Zhonggen Li | 2009 | Environmental Pollution2009，，11： | 1 |
| 7 | Probing Hg evasion from surface waters of two Chinese hyper/meso-eutrophic reservoirs显示文摘 | Xuewu Fu Xinbin Feng Qi Wan Bo Meng Haiyu Yan Yanna Guo | 2010 | Science of the Total Environment2010，，23： | 1 |
| 8 | Mercury mass balance study in Wujiangdu and Dongfeng Reservoirs, Guizhou, China显示文摘 | Xinbin Feng Hongmei Jiang Guangle Qiu Haiyu Yan Guanghui Li Zhonggen Li | 2009 | Environmental Pollution2009，，10： | 1 |
| 9 | Distribution and wet deposition fluxes of total and methyl mercury in Wujiang River Basin, Guizhou, China显示文摘 | Yanna Guo Xinbin Feng Zhonggen Li Tianrong He Haiyu Yan Bo Meng Junfang Zhang Guangle Qiu | 2008 | Atmospheric Environment2008，，30： | 1 |
| 10 | The concentration anddistribution ofmercury species in the water columns of Baina Reservoir显示文摘 | YAN Haiyu FENG Xinbin TANG Shunlin | 2003 | Journal De Physiqure2003，107，4： | 1 |
| 11 | Insights into low fish mercury bioaccumulation in a mercury-contaminated reservoir, Guizhou, China显示文摘 | Bian Liu Haiyu Yan Cuiping Wang Qiuhua Li Stéphane Guédron Jorge E. Spangenberg Xinbin Feng Janusz Dominik | 2011 | Environmental Pollution2011，，： | 1 |
| 12 | The spatial pattern and governance of Zhongyuan Urban-Rural System in its development trajectory显示文摘It remains unclear on how transportation network interacts with economic network in an urban-rural agglomeration,while such knowledge is crucial for urban-rural system governance and sustainability.We explored such spatial interactions in the Zhongyuan Urban-Rural Agglomeration(ZURA)from 1995 to 2015.The structure of transportation network was measured by spatial syntax model,and that of economic network was gauged by improved gravity model.The associations between transportation and economic networks were investigated by conducting bivariate spatial autocorrelation analysis.The global Moran’s I showed that the two networks were positively correlated from 1995 to 2015.The local Moran’s I identified“high-high”associations between transportation and economic networks around core cities in 1995,which further extended to surrounding cities.Our results reveal that peripheral cities with highly developed transportation system have little spatial economic impact on neighboring rural areas,while cities with low transportation accessibility restrained its external economic influence of neighboring cities and rural areas.Our findings shed light on future urban-rural system governance,where the“multi-center,unbalanced”growth patterns of economic network and the“multi-core,multi-directional”structure of transportation network are more likely to contribute to the sustainability of urban-rural systems. | FU Haiyue WANG Yan MAO Liang HONG Nana WANG Zhaoya ZHAO Shuchang LIAO Chuan | 2022 | Journal of Geographical Sciences2022，32，7： | 1 |
| 13 | Distribution and wet deposition fluxes of total and methyl mercury in Wujiang River Basin, Guizhou, China显示文摘 | Yanna Guo Xinbin Feng Zhonggen Li Tianrong He Haiyu Yan Bo Meng Junfang Zhang Guangle Qiu | 2008 | Atmospheric Environment2008，，30： | 1 |
| 14 | Spatial distribution and methylation of mercury in a eutrophic reservoir heavily contaminated by mercury in Southwest China 显示文摘 | YAN Haiyu LI Qiuhua MENG Bo | 2013 | Applied Geochemistry2013，33，4： | 1 |
| 15 | Spatial characters of nutrients in Wujiangdu Reservoir in karst river,SW China显示文摘A preliminary assessment of the Wujiangdu Reservoir examined nutrient distribution and transport.Water samples were collected in the summer(July) of 2004, during the high-flow season. Inorganic nutrients(N,P, Si) and chlorophyll a(chl a) concentrations of the Wujiangdu Reservoir and its inflow rivers were analyzed.Other water parameters(dissolved oxygen, p H, temperature, and electrical conductivity) were measured as well.The results show gradually decreasing concentrations of NO_3^--N and dissolved silicate in the surface water moving downstream to the dam of the Wujiangdu Reservoir.Additionally, soluble reactive phosphorus concentrations measured very low, with most falling below the sensitivity threshold of the method used in surface waters. Particulate phosphorus and NO_3^--N were the predominant species of phosphorus and nitrogen in the reservoir, respectively. The concentration of nutrients in the Yeji River was the largest of all inflow rivers. The maximum concentration of chl a was found near the dam. These results reflect upstream conditions similar to that of a river, and reservoir conditions near the dam similar to that of a natural lake system. | Jun Zhu Siliang Li Yuchun Wang Haiyu Yan Limin Liao Jun Zhong | 2017 | Acta Geochimica2017，36，4： | 1 |
| 16 | Spatial distribution and methylation of mercury in a eutrophic reservoir heavily contaminated by mercury in Southwest China显示文摘 | Haiyu Yan Qiuhua Li Bo Meng Cuiping Wang Xinbin Feng Tianrong He Janusz Dominik | 2013 | Applied Geochemistry2013，，： | 1 |
| 17 | The impact of sulfate reduction on the distribution of methylmercury in reservoirs in the city of Guiyang显示文摘In this paper, the relationship between sulfate reduction potential and mercury methylation potential was studied in the Aha, Baihua and Hongfeng reservoirs from Guiyang City. The methylmercury (MeHg) concentrations of lake water in the Aha Reservoir were greatly elevated as compared to those of the Hongfeng and Baihua reservoirs, which was correlated with its distinctly high SRB abundance, SO42-, and S2- concentrations. Among the three reservoirs, however, the highest MeHg was observed in in the top several centimenters of pore water profile in the Hongfeng Reservoir where the lowest S2- in pore water occurred. The distributions of MeHg in lake water and pore water showed the highest methylation potential occurred at water-sediment surface for the Aha Reservoir and the in the top several centimenters of sediments for the Hongfeng Reservoir. It is guessed that the highest mercury methylation only occurs at the sites with certain sulfide concentrations. | HE Tianrong LI Ting Yang Ruidong LUO Guangjun LANG Xiaofang An Yanling YAN Haiyu | 2013 | Chinese Journal Of Geochemistry2013，32，1： | 1 |
| 18 | Quantification of volatile compounds in Chinese soy sauce aroma type liquor by stir bar sorptive extraction and gas chromatography-mass spectrometry显示文摘 | Fan Wenlai Shen Haiyue Xu Yan | 2011 | J Sci Food Agric2011，，91： | 1 |
| 19 | The Long-Term Efficacy of Neoadjuvant Chemotherapy Followed by Radical Hysterectomy Compared With Radical Surgery Alone or Concurrent Chemoradiotherapy on Locally Advanced-Stage Cervical Cancer显示文摘 | Mingzhu Yin Falin Zhao Ge Lou Haiyu Zhang Meng Sun Cong Li Yan Hou Xia Li Fanling Meng Xiuwei Chen | 2011 | International Journal of Gynecological Cancer2011，，1： | 1 |
| 20 | Effect of coal rank on structure and dielectric properties of chars 显示文摘 | LIU Haiyu XU Hang JIN Yan | 2015 | Fuel2015，153，1： | 1 |
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