|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A nitrogen and phosphorus dynamic model of mesocosm pelagic ecosystem in the Jiaozhou Bay in China显示文摘A nitrogen and phosphorus dynamic model of mesocosm pelagic ecosystem was established according to the summary and synthesis of the models available,in which seven state variables (DIN,PO4-P,DON,DOP,phytoplankton,zooplankton and detritus) were included. Logically it had five modules-phytoplankton,zooplankton,dissolved inorganic nutrients,dissolved organic nutrients and detritus. The results showed that this model could simulate the variations of DIN,PO4-P,DON,DOP,POC and phytoplankton biomass in pelagic ecosystem in mesocosm properly,based on the site experiment data in the Jiaozhou Bay in the autumn of 1999 and the summer of 2000. Not only the logical structure but also the model parameters were feasible,and about 20 parameters were made to fit for the Jiaozhou Bay during the simulation. All of these are necessary to study the control mechanism of nutrients biogeochemical cycling in the Jiaozhou Bay and other China's coastal waters. | LI Keqiang WANG Xiulin LIANG Shengkang SHI Xiaoyong ZHU Chenjian CHEN Hu | 2008 | Acta Oceanologica Sinica2008，27，5： | 4 |
| 2 | Numerical Simulation of Nutrient and Phytoplankton Dynamics in Guangxi Coastal Bays, China显示文摘The increasing riverine pollutants have resulted in nutrient enrichment and deterioration of water quality in the coastal water of Guangxi Province, China. However, the quantitative relationship between nutrient loads and water quality responses, which is crucial for developing eutrophication control strategies, is not well studied. In this study, the riverine fluxes of nutrients were quantified and integrated with nutrient cycling and phytoplankton dynamics by using box models for Guangxi coastal bays. The model concepts and biogeochemical equations were the same; while most model parameters were specific for each bay. The parameters were calibrated with seasonal observations during 2006–2007, and validated with yearly averaged measurements in 2009. The general features of nutrient and phytoplankton dynamics were reproduced, and the models were proved feasible under a wide range of bay conditions. Dissolved inorganic nitrogen was depleted during the spring algal bloom in Zhenzhu Bay and Fangcheng Bay with relatively less nutrient inputs. Phosphorus concentration was high in spring, which decreased then due to continuous phytoplankton consumption. Chlorophyll-a concentration reached its annual maximum in summer, but was the minimum in winter. Eutrophication was characterized by both an increase in nutrient concentrations and phytoplankton biomass in Lianzhou Bay. Either about 80% reduction of nitrogen or 70% reduction of phosphorus was required to control the algal bloom in Lianzhou Bay. Defects of the models were discussed and suggestions to the environmental protection of Guangxi coastal bays were proposed. | QIAO Xudong WANG Baodong SUN Xia LIANG Shengkang | 2014 | Journal of Ocean University of China2014，13，2： | 1 |
| 3 | Algicidal activity of rhamnolipid biosurfactants produced by Pseudomonas aeruginosa显示文摘 | Wang Xiulin Gong Liangyu Liang Shengkang | 2005 | Harmful algae2005，4，2： | 1 |
| 4 | Algicidal activity of rhanmolipid biosurfactants produced by Pseudomonas aeruginosa 显示文摘 | Wang Xiulin Gong Liangyu Liang Shengkang | 2005 | Harmful Algae2005，4，2： | 1 |
| 5 | Estimation of the Maximum Allowable Loading Amount of COD in Luoyuan Bay by a 3-D COD Transport and Transformation Model显示文摘The rapid economic and social developments in the Luoyuan and Lianjiang counties of Fujian Province, China, raise certain environment and ecosystem issues. The unusual phytoplankton bloom and eutrophication, for example, have increased in severity in Luoyuan Bay(LB). The constant increase of nutrient loads has largely caused the environmental degradation in LB. Several countermeasures have been implemented to solve these environmental problems. The most effective of these strategies is the reduction of pollutant loadings into the sea in accordance with total pollutant load control(TPLC) plans. A combined three-dimensional hydrodynamic transport-transformation model was constructed to estimate the marine environmental capacity of chemical oxygen demand(COD). The allowed maximum loadings for each discharge unit in LB were calculated with applicable simulation results. The simulation results indicated that the environmental capacity of COD is approximately 11×104 t year-1 when the water quality complies with the marine functional zoning standards for LB. A pollutant reduction scheme to diminish the present levels of mariculture- and domestic-based COD loadings is based on the estimated marine COD environmental capacity. The obtained values imply that the LB waters could comply with the targeted water quality criteria. To meet the revised marine functional zoning standards, discharge loadings from discharge units 1 and 11 should be reduced to 996 and 3236 t year-1, respectively. | WU Jialin LI Keqiang SHI Xiaoyong LIANG Shengkang HAN Xiurong MA Qimin WANG Xiulin | 2014 | Journal of Ocean University of China2014，13，4： | 1 |
| 6 | Algicidal ac- tivity of rhamnolipid biosurfactants produced by Pseudomonas aemginosa 显示文摘 | Xiulin Wang Liangyu Gonga Shengkang Liang | 2005 | Harmful Algae2005，，4： | 1 |
| 7 | Algcidal activity of rhanmolipid biosurfactants produced by Pseudomonas aeruginosa显示文摘 | WANG XIULIN GUO LIANYYU LIANG SHENGKANG | 2005 | Harmful Algae2005，，4： | 1 |
| 8 | Impact of Water-Sediment Regulation on Variations of Amino Acids in the Middle-Lower Yellow River, China显示文摘In order to examine the impacts of water-sediment regulation on regional carbon cycling,we collected water,particulate and sediment samples from the middle-lower Yellow River in late June and early July,2015 and analyzed their specific amino acids(AA),DOC,POC,and bacteria abundance.Summarized by 14 specific AA,the total hydrolysable AA(THAA),particulate AA(PAA),and sediment AA(SAA)varied in ranges of 2.29-9.05μmol L^-1,5.22-22.96μmol L^-1,and 81.7-137.19μg g^-1 dry weight.After the regulation,dissolved free AA(DFAA)decreased by 29%while DCAA increased by 72%.These variations suggested that DFAA were further degraded,while DCAA molecules were further activated.Meanwhile,PAA increased almost 4 times as many as those before regulation,and SAA increased as well.After regulation,the amounts of bioactive amino acids(Asp,Glu and Gly)increased in THAA but decreased in PAA,with little changes in SAA.The ratios of Asp/Gly in different phases increased after regulation,indicating the AA contributions were promoted by calcareous organisms rather than by siliceous organisms.Multiple correlation analysis showed that PAA was primary representatives of AA and organic carbon,followed by DCAA and POC.Moreover,bacterial reproduction played a key role in shaping the AA compositions and properties,followed by the redox condition and acid-base balance.The results of this study provided a clear evidence for the effects of water-sediment regulation on regional biogeochemistry of organic carbon in the middle-lower Yellow River. | ZHANG Kun ZOU Li DAI Qunying WANG Jian JIANG Xueyan LIANG Shengkang | 2020 | Journal of Ocean University of China2020，19，2： | 1 |
| 9 | Simultaneous Desorption of Polycyclic Aromatic Hydrocarbons and Heavy Metals from Contaminated Soils by Rhamnolipid Biosurfactants显示文摘Hydrophobic organic compounds(HOCs)and heavy metals(HMs)are toxins that usually coexist in natural environments.Due to the differences in their properties,it remains challenging to simultaneously remove HMs and HOCs.In this study,the removal of phenanthrene(Phe)and lead(Pb)from co-contaminated soils by single rhamnolipid(RL)and mixed RL-sophorolipid(SL)biosurfactants were evaluated via soil column experiments.Biosurfactant micelle sizes were determined by dynamic light scattering,and the mechanisms of micelle solubilization were studied.The effects of biosurfactant concentrations,pH,washing agent salinity and the ageing time of polluted soils on Phe and Pb desorption efficiencies were also assessed.The substantial removal of Phe and Pb using mixed RL-SL systems,when molar fractions of RLs were 0.7,was attributed to large mixed micelle formation and lower sorption losses of these systems.The optimal pH value was 6.0,while Phe desorption was favoured at high RLs and low ionic strengths.However,the RLs concentration and ionic strength had no obvious influence on Pb removal.In addition,both Phe and Pb desorption decreased with increased ageing of the polluted soils.Combined RL-SL biosurfactants can be effective for simultaneously removing HOCs and HMs from polluted soils. | WU Liang SONG Dandan YAN Lele LIANG Shengkang YANG Yanqun PENG Changsheng SHANG Yujun WANG Xiuli DONG Xueliang | 2020 | Journal of Ocean University of China2020，19，4： | 0 |
| 10 | Spatial Distribution Assessment and Source Apportionment of Land-Based Pollutant Yield from Qingdao, China显示文摘The spatial distribution of chemical oxygen demand(COD) and total nitrogen(TN) yield from Qingdao are studied by comparing pollutant yield amount, densities and spatial aggregation(Getis-Ord indexes) among the land-based pollutant source regions(PSRs) entering the three sub-seas(i.e. the Jiaozhou Bay(JZB), other coastal area in the Yellow Sea(OCAYS) and Laizhou Bay(LZB), respectively). Industrial composition of the loads are also studied by comparing pollutant yield among the sources of agriculture, rural domesticity, industry, urban domesticity and service, and calculation of Gini coefficient. Results show that spatial distribution of COD and TN yield from Qingdao are extremely unbalanced. The JZB, with less than 3% of the total coastal sea area of Qingdao, received 62% COD load and 65% TN yield from Qingdao, while the OCAYS, with more than 97% area, only received 23% COD and 20% TN, which consist with the much worsen water quality of JZB than that of OCAYS. On the other hand, the source apportionment of COD and TN loads in the PSRs entering JZB and the OCAYS was similar. The agricultural and domestic sources with high pollution intensity account for more than 80%, while the industrial and service sources with low pollution intensity account for less than 20%. While Gini coefficients, COD 0.81 and TN 0.84 which are much higher than the ‘imbalance' threshold of 0.4, show the uneven industrial structure of Qingdao. These results may be useful in the determination of land-based pollution total amount control at the PSR level. | SU Ying LIANG Shengkang ZHANG Peng WANG Xiulin | 2019 | Journal of Ocean University of China2019，18，1： | 0 |
| 11 | Total Maximum Allocated Loads on Stoichiometry of Nitrogen and Identification of Critical Form in Jiaozhou Bay, China显示文摘Total pollutant load control management for total dissolved nitrogen(TDN) is an urgent task required to gain a good water quality status in Jiaozhou Bay(JZB), China. In this paper, the stoichiometry of multiform TDN on land-ocean interactions associated with marine biogeochemical reaction(LOIMBR) was studied by modeling the load-response relationship based on a three-dimensional water quality model of nitrogen in JZB. The results showed that the stoichiometry on LOIMBR of dissolved organic nitrogen(DON), NO3-N and NH4-N was 3:1:1, with one-third of the contribution on the concentration of dissolved inorganic nitrogen(DIN) in JZB for the land-based DON loads to DIN loads. Based on the stoichiometric relationship of nitrogen forms, the total maximum allocated load(TMAL) of equivalent TDN(ETDN) was approximately 5300 t a^-1 in JZB, equivalent to the TMAL of 5700, 5800 and 15600 t a^-1 for NH4-N, NO3-N and DON, respectively. According to the loads of ETDN, there were four outfalls overloaded in JZB in 2015, which lie in the head of the bay. In the four overloaded outfalls, besides NO3-N, NH4-N was the critical nitrogen control form for Moshui River, while DON for Dagu River and Haibo River. The results of numerical experiments further showed that JZB will achieve good water quality after 7 years by implementation of the 'different emission reduction' based on TMAL of ETDN, which is significantly better than 'equal percent removal'. | LIN Guohong SONG Xianli LU Dongliang LI Keqiang LIANG Shengkang WANG Xiulin | 2020 | Journal of Ocean University of China2020，19，3： | 0 |
| 12 | Effect of rhamnolipid biosurfactant on the desorption and biodegradation of sorbed phenanthrene in marine sediments显示文摘 | Shengkang LIANG Xiulin WANG Yu XIN Rongguo SU | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
| 13 | Spatial variation of lipophilic marine algal toxins and its relationship with physicochemical parameters in spring in Laizhou Bay,China显示文摘Lipophilic marine algal toxins(LMATs)are produced by some toxigenic microalgae,which pose a serious threat to marine ecosystem and even human health.The occurrence and environmental control factors of LMATs in the surface seawater and phytoplankton in spring in Laizhou Bay in which Huanghe(Yellow)River estuary is included,in Shandong,East China were investigated.Okadaic acid(OA),pectenotoxin-2(PTX2),dinophysistoxin-1(DTX1),pectenotoxin-2 seco acid(PTX2 SA),DTX2,7-epi-PTX2 SA,PTX11,and 13-desmethyl spirolide C(SPX1)were detected from the surface seawater samples,and PTX2,7-epi-PTX2 SA,OA,DTX2,DTX1,PTX2 SA,and PTX11 were discovered in the phytoplankton samples showed a decreasing trend.The concentrations of∑LMATs in the seawater and phytoplankton ranged 2.03-74.38 ng/L on average of 13.72 ng/L and 0.98-479.27 pg/L on average of 50.20 pg/L,respectively.The joint influence of terrigenous input and internal circulation could promote the growth,toxin production,and toxin release of toxin-producing algae,leading to a higher content of LMATs in the bay nearby the Huanghe River estuary in both seawater and phytoplankton.The concentration of LMATs in spring was higher than that in summer,showing obvious seasonal variation.In addition,no significant correlation between most of the physiochemical parameters and LMAT contents in seawater was revealed by correlation analysis except for the positive correlation between DTX2 and chlorophyll a,OA and NH4-N.However,the increase of dissolved inorganic nitrogen content in seawater could enhance the production of OA,DTX1,and DTX2 in phytoplankton due probably to that the inorganic N input could benefit the growth and stimulate toxin production of toxin-producing algae.The result also proved that some PTX2 may be originated from Procentrum spp.and OA,DTXs and part of PTX2 may be originated from Dinophysis spp. | Xiuping HE Junhui CHEN Jiuming WANG Xia SUN Ming XIN Baodong WANG Shengkang LIANG | 2022 | Journal of Oceanology and Limnology2022，40，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员