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| 1 | A restoration-promoting integrated floating bed and its experimental performance in eutrophication remediation显示文摘Numerous studies on eutrophication remediation have mainly focused on purifying water first, then restoring submerged macrophytes. A restoration-promoting integrated floating bed(RPIFB) was designed to combine the processes of water purification and macrophyte restoration simultaneously. Two outdoor experiments were conducted to evaluate the ecological functions of the RPIFB. Trial 1 was conducted to compare the eutrophication purification among floating bed, gradual-submerging bed(GSB) and RPIFB technologies. The results illustrated that RPIFB has the best purification capacity. Removal efficiencies of RPIFB for TN, TP, NH+ 4-N, NO-3-N, CODCr, Chlorophyll-a and turbidity were 74.45%, 98.31%, 74.71%, 88.81%, 71.42%, 90.17% and 85%, respectively. In trial 2, influences of depth of GSB and photic area in RPIFB on biota were investigated. When the depth of GSB decreased and the photic area of RPIFB grew, the height of Potamogeton crispus Linn. increased, but the biomass of Canna indica Linn. was reduced. The mortalities of Misgurnus anguillicaudatus and Bellamya aeruginosa in each group were all less than 7%. All results indicated that when the RPIFB was embedded into the eutrophic water, the regime shift from phytoplankton-dominated to macrophyte-dominated state could be promoted. Thus, the RPIFB is a promising remediation technology for eutrophication and submerged macrophyte restoration. | Yiming Guo Yunguo Liu Guangming Zeng Xinjiang Hu Xin Li Dawei Huang Yunqin Liu Yicheng Yin | 2014 | Journal of Environmental Sciences2014，26，5： | 18 |
| 2 | Potential Benefits of Biochar in Agricultural Soils:A Review显示文摘Soil degradation,characterized by declines in nutrient status and simultaneous accumulation of pesticide residues,is a major problem affecting agricultural ecosystems.Previous studies indicate that biochar application to soil has promise as a practical method to alleviate these pressures:increasing crop yield and enhancing pesticide degradation.Here,we review the roles of biochar in both chemical and biological promotion of pesticide degradation and the potential benefits of biochar relating to the efficiency of fertilizer use,availability of nutrients,and nutrient exchange.Biochar typically has a high surface area featuring many functional groups,a high cation exchange capacity,and high stability.Major factors that impact on the nutrient retention characteristics of biochar(e.g.,feedstock,pyrolysis temperature,and application rate) are also discussed herein.Nonetheless,more studies of the long-term impacts on soil properties from biochar addition are still required before it can be possible to accurately quantify the sustainability of this approach to sequester carbon and restore soil function. | DING Yang LIU Yunguo LIU Shaobo HUANG Xixian LI Zhongwu TAN Xiaofei ZENG Guangming ZHOU Lu | 2017 | Pedosphere2017，27，4： | 10 |
| 3 | Enhanced efficiency of cadmium removal by Boehmeria nivea(L.) Gaud. in the presence of exogenous citric and oxalic acids显示文摘Boehmeria nivea(L.)Gaud.is a potential candidate for the remediation of Cd contaminated sites.The present investigation aims to explore Cd tolerance threshold and to quickly identify the role of exogenous organic acids in Cd uptake and abiotic metal stress damage.Elevated Cd levels(0–10 mg/L)resulted in an obvious rise in Cd accumulation,ranging from268.0 to 374.4 in root and 25.2 to 41.2 mg/kg dry weight in shoot,respectively.Citric acid at1.5 mmol/L significantly facilitated Cd uptake by 26.7%in root and by 1-fold in shoot,respectively.Cd translocation efficiency from root to shoot was improved by a maximum of66.4%under 3 mmol/L of oxalic acid.Citric acid exhibited more prominent mitigating effect than oxalic acid due to its stronger ligand affinity for chelating with metal and avoiding the toxicity injury of free Cd ions more efficiently.The present work provides a potential strategy for efficient Cd remediation with B.nivea. | Huaying Li Yunguo Liu Guangming Zeng Lu Zhou Xin Wang Yaqin Wang Chunlin Wang Xinjiang Hu Weihua Xu | 2014 | Journal of Environmental Sciences2014，26，12： | 10 |
| 4 | An ecological risk assessment for heavy metals of the lead-zinc ore tailings显示文摘The structure of Pb, Zn, Cu and Cd in lead zinc ore tailing soils in Yongzhou, Hunan is analyzed by the optimized BCR sequential extraction procedure. The content and proportion of heavy metals of the mine are measured. Meanwhile, the ecological risks are evaluated with the Lars Hakanson’s potential ecological risk exponential method. The analysis shows that the content of heavy metals is very high, reaching the level of serious pollution. The order of metal pollution degrees are Cd>Pb>Cu>Zn. On the other hand, it is very possible that the heavy metals may combine together as compounds or cling to the crystal form of clay. Since the form of soluble acid and free metals are very little, it is not an easy job for metal eluting or restoration of plants. Yet it is possible to take out those heavy metals adopting the chemical extraction technology. DTPA and EDTA, indicated by a research, both have iterative value and strong conformity effect. So they are effective elutriants to restore the polluted soil. A chemical extraction method is put forward in this paper. | Peng Huibing Liu Yunguo Li Jun Liu Meiying | 2007 | Ecological Economy2007，3，2： | 5 |
| 5 | Troubled by unequal pay rather than low pay:The incentive effects of a top management team pay gap显示文摘We examine the relationships with firm performance of the internal pay gap among individual members of the top management team(TMT) and the compensation level of TMT members relative to their industry peers. We find that pay gap is positively related to firm performance and that this positive relation is stronger when the TMT pay level is higher than the industry median. However, we do not observe such effects in Chinese state-owned enterprises(SOEs),in which both the executive managerial market and compensation are government-regulated. We also document that cutting central SOE managers' pay level can increase firm value, whereas doing so for local SOE managers has the opposite effect. Our findings have important implications for research on TMT compensation as well as for policy makers considering SOE compensation reform. | Yue Xu Yunguo Liu Gerald J.Lobo | 2016 | China Journal of Accounting Research2016，，2： | 4 |
| 6 | Adsorption of 17β-estradiol from aqueous solution by raw and direct/pre/post-KOH treated lotus seedpod biochar显示文摘Five biochars derived from lotus seedpod(LSP)were applied to examine and compare the adsorption capacity of 17β-estradiol(E2)from aqueous solution.The effect of KOH activation and the order of activation steps on material properties were discussed.The effect of contact time,initial concentration,p H,ionic strength and humic acid on E2 adsorption were investigated in a batch adsorption process.Experimental results demonstrated that the pseudo second-order model fitted the experimental data best and that adsorption equilibrium was reached within 20 hr.The efficiency of E2 removal increased with increasing E2 concentration and decreased with the increase of ionic strength.E2 adsorption on LSP-derived biochar(BCs)was influenced little by humic acid,and slightly affected by the solution p H when its value ranged from 4.0 to 9.0,but considerably affected at p H 10.0.Low environmental temperature is favorable for E2 adsorption.Chemisorption,π–πinteractions,monolayer adsorption and electrostatic interaction are the possible adsorption mechanisms.Comparative studies indicated that KOH activation and the order of activation steps had significant impacts on the material.Post-treated biochar exhibited better adsorption capacity for E2 than direct treated,pretreated,and raw LSP biochar.Pyrolyzed biochar at higher temperature improved E2 removal.The excellent performance of BCs in removing E2 suggested that BCs have potential in E2 treatment and that the biochar directly treated by KOH would be a good choice for the treatment of E2 in aqueous solution,with its advantages of good efficiency and simple technology. | Ni Liu Yunguo Liu Guangming Zeng Jilai Gong Xiaofei Tan Jun Wen Shaobo Liu Luhua Jiang Meifang Li Zhihong Yin | 2020 | Journal of Environmental Sciences2020，32，1： | 4 |
| 7 | Analysis of SSRs Derived from an EST Library of Half-Smooth Tongue Sole Cynoglossus semilaevis显示文摘A complementary DNA(cDNA) library was constructed from half-smooth tongue sole spleen. A long-read expressed sequence tag(EST) database was generated,containing 3100 cDNA clones,of which 220 clones were fully sequenced. A total of 1060 non-redundant simple sequence repeats(SSRs) were obtained from the cDNA library. An average of 5 kb sequence generates 1 SSR in the half-smooth tongue sole spleen cDNA library. The proportion of the SSR unit size was different in the cDNA library. The monomeric repeats(51.4%) are the most abundant class of SSR in the dataset. The dimeric,trimeric,tetrameric and hexameric re-peats are represented in decreasing proportions of 27.2%,16.0%,2.8% and 1.9%,respectively. The frequency of pentameric repeats was observed the least(only 0.7%) . Most of the monomeric and dimeric repeats are distributed in 3' and 5' un-translation region. If translation regions are considered merely,trimeric repeats are the highest,accounting for 57% of the total microsatellites. | LIU Yunguo BAO Baolong CHEN Songlin SUN Xiuqin | 2008 | Journal of Ocean University of China2008，7，3： | 4 |
| 8 | Local fiscal distress and investment efficiency of local SOEs显示文摘In this paper, we use A-share listed firms between 2002 and 2010 to investigate the relationship between local fiscal distress and the investment efficiency of local SOEs, along with the effect of corporate tax payments on this relationship. We find a positive relationship between the extent of local SOEs' overinvestment and the fiscal distress of the corresponding local government where the enterprise and this relationship become stronger for firms that pay fewer taxes. The pattern of underinvestment among local SOEs was in contrast,and these relationships do not exist for non-SOEs or central SOEs. Moreover,we find that expanding a firm's investment scale leads to an increase in total taxes paid, including income and turnover taxes, which further result in more local fiscal revenue. Overall, we conclude that local governments have an incentive to increase fiscal revenue when faced with fiscal distress by raising the investment scale of local SOEs and that the incentives and effects of such interventions appear to be stronger among firms that contribute less to local fiscal revenue.ó 2013 Production and hosting by Elsevier B.V. on behalf of China Journal of Accounting Research. Founded by Sun Yat-sen University and City University of Hong Kong. | Xinxin Liao Yunguo Liu | 2014 | China Journal of Accounting Research2014，，2： | 4 |
| 9 | Is the quality of female auditors really better? Evidence based on the Chinese A-share market显示文摘Unlike previous studies in which a single index was used to measure audit quality, this study establishes a new comprehensive index to measure audit quality via Discretionary Accrual, as estimated by Jones' basic model(1991) and Audit Opinions. The former is used to measure the quality of financial statements, and the latter is used to measure the auditors' independence in the mainstream international literature. We examine whether and how an auditor's gender affects the quality of his or her audits under the framework of empathy theory and gender role socialization theory. Using a large sample of 9861 auditor-firm-year observations from Chinese A-share–listed companies from 2011 to 2015, we find that the audit quality of signed auditors shows significant gender differences: these significant gender differences differ from the findings of previous studies that female auditors could provide a higherquality audit than male auditors; that is, in our study the audit quality of the male auditors exceeds that of the female auditors. After distinguishing the positive and negative directions of the Discretionary Accrual, we find no significant gender differences in audit quality between male and female auditors when the earnings had been adjusted upward by the client; that is, female and male auditors had the same audit risk perception. However, when the client adjusted earnings downward, which indicates a lower audit risk for theauditor, the audit quality of female auditors was significantly lower than that of the male auditors. After controlling for the age and position of the auditors,we also find that the gender differences in the auditors' audit quality decreased significantly or even disappeared when the auditor's age exceeded 45 years and/or their position was manager or above. These results are consistent with the empathy theory and gender role socialization theory. | Shixin Yang Yunguo Liu Qiongdan Mai | 2018 | China Journal of Accounting Research2018，，4： | 4 |
| 10 | Growth inhibition and oxidative damage of Microcystis aeruginosa induced by crude extract of Sagittaria trifolia tubers显示文摘Aquatic macrophytes are considered to be promising in controlling harmful cyanobacterial blooms. In this research, an aqueous extract of Sagittaria trifolia tubers was prepared to study its inhibitory effect on Microcystis aeruginosa in the laboratory. Several physiological indices of M. aeruginosa, in response to the environmental stress, were analyzed. Results showed that S. trifolia tuber aqueous extract significantly inhibited the growth of M. aeruginosa in a concentration-dependent way. The highest inhibition rate reached 90% after 6 day treatment. The Chlorophyll-a concentration of M. aeruginosa cells decreased from 343.1 to314.2 μg/L in the treatment group. The activities of superoxide dismutase and peroxidase and the content of reduced glutathione in M. aeruginosa cells initially increased as a response to the oxidative stress posed by S. trifolia tuber aqueous extract, but then decreased as time prolonged. The lipid peroxidation damage of the cyanobacterial cell membranes was reflected by the malondialdehyde level, which was notably higher in the treatment group compared with the controls. It was concluded that the oxidative damage of M. aeruginosa induced by S.trifolia tuber aqueous extract might be one of the mechanisms for the inhibitory effects. | Jiang Li Yunguo Liu Pingyang Zhang Guangming Zeng Xiaoxi Cai Shaobo Liu Yicheng Yin Xinjiang Hu Xi Hu Xiaofei Tan | 2016 | Journal of Environmental Sciences2016，28，5： | 3 |
| 11 | Subcellular distribution and chemical forms of cadmium in Bechmeria nivea (L.) Gaud.显示文摘 | Xin Wang Yunguo Liu Guangming Zeng Liyuan Chai Xiaochen Song Zongyi Min Xin Xiao | 2007 | Environmental and Experimental Botany2007，，3： | 2 |
| 12 | Function projective synchronization in complex networks with switching topology and stochastic effects显示文摘 | JIN Yunguo and ZHONG Shouming | 2015 | Applied Mathematics and Computation2015，259，15： | 1 |
| 13 | Biosorp- tion of uranium (VI) by immobilized Aspergillus fumigatus beads显示文摘 | Wang Jingsong Hu Xinjiang Liu Yunguo | 2010 | Journal of Environmental Radioactivity2010，101，6： | 1 |
| 14 | Biosorption of cadmium( Ⅱ ) ,zinc( Ⅱ ) and lead( Ⅱ ) by Penicillium Simplb cissimum : isotherms, kinetics and thermodynamics显示文摘 | FAN Ting LIU Yunguo FENG Baoying | 2008 | Journal of Hazardous Materials2008，160，23： | 1 |
| 15 | Uptake and translocation of arsenite and arsenate by Pteris vittata L.: Effects of silicon, boron and mercury显示文摘 | Xin Wang Lena Q. Ma Bala Rathinasabapathi Yunguo Liu Guangming Zeng | 2009 | Environmental and Experimental Botany2009，，2： | 1 |
| 16 | Simultaneous Cr(VI) reduction and phenol degradation in pure cultures of Pseudomonas aeruginosa CCTCC AB91095显示文摘 | Huaxiao Song Yunguo Liu Weihua Xu Guangming Zeng Nuzaaiti Aibibu Li Xu Beibei Chen | 2009 | Bioresource Technology2009，，21： | 1 |
| 17 | Pedological characteristics of Mn mine tailings and metal accumulation by native plants显示文摘 | Xin Wang Yunguo Liu Guangming Zeng Liyuan Chai Xin Xiao Xiaochen Song Zongyi Min | 2008 | Chemosphere2008，，9： | 1 |
| 18 | Fast adsorption of Cd2 + and Pb2 + by EGTA dianhydride (EGTAD) modified ramie fiber显示文摘 | SUN Zhichao LIU Yunguo HUANG Yuanqing | 2014 | Journal of Colloid and Interface Science2014，434，3： | 1 |
| 19 | A new team teaching mode in university physics teaching显示文摘 | Yang Jianhua Gong Yunguo Sun Liming | 2005 | Journal of science education2005，6，2： | 1 |
| 20 | Adsorption of chro- mium(Ⅵ) by ethylenediamine-modified cross-inked magnetic chitosan resin:Isotherms kinetics and thermodynamics显示文摘 | Hu Xinjian Wang Jingsong Liu Yunguo | 2011 | Journal of Hazardous Materials2011，185，1： | 1 |
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