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urbanIZATION AND ITS IMPACTS ON WATER ENVIRONMENT IN TUMEN RIVER BASIN

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Chinese Geographical science 2002年第3期12卷 273-281页

作者： WANG Shi-jun,WANG Dan,YANG Xiang-h ua(college of urban and environmental sciences,{4. normal university,changchun 13.024.P.R.china) college of urban and environmental sciences Northeast Normal University Changchun 130024 P. R. China

The trans-boundary scope of the Tume n River Basin(TRB)going through china,Russia and DPRK has been defined,and on the basis of this,status of urbanization and its impacts on water environment in recent 20years in TRB have been *** n in TRB can be characterized as:1)There is medium level of overall urbanization in *** distance still exists compared with developed *** it is lower than the average urbanization level of Russia and higher than that o f china.2)There is unbalanced distribution of urbanization development in *** in china part owns the c haracter of low starting point and hi gh-speed *** Russia part,charac-ter of urbanization can be described as high starting point and stable *** DPRK part,urbanizatio n level is low,and motive power lacks.3)Due to large population,in china part there is broader region urbanized,larger radius and higher frequency of human activities,which lead to heavier pressure on ***,the paper has point-ed that impacts of urbanization on wa ter environment are as follows:1)urban population growth and industr y develop-ment increase the demand for freshwa ter,and also exacerbate the contrad iction between limited water supply and increas-ing freshwater demand.2)urban infrastructure doesn’t match with urban productive function especially treatment facili-ties,which results in the pollution of the Tumen River.3)The pollution situation in the Tumen River got peak point in1995,and presently,such situation has been improved in great scale,due to effective interventions ***,there still exist 2enterprises that are urgent to be ***,pollution of municipal sewage will become more and more apparent.4.The influence of urbanization on soil is mainly caused by industrial effl uent and slag,and pollut-ed water *** and water l oss has also been a serious problem caused by urbanization.5)urbanization results in the decrease of wet

关键词： tumen river basin (TRB) urbanization water environment

Dominant bacteria correlated with elimination of sludge in an innovative reactor

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Progress in Natural science:Materials International 2009年第12期19卷 1765-1771页

作者： Shanshan Lin~a,Ying Wang~a,Jifang Lin~a,Xinrui Wang~b,Huili Gong~(c,*) a School of urban and environmental science,northeast {4. university,changchun 13.024.china b college of Medicine,jilin university,changchun 130064.china c School of Resource Environment and Tourism,Capital {4. university,Beijing 10004.,china [a]School of urban and environmental science Northeast Normal University Changchun 130024 China [b]college of Medicine Jilin University Changchun 130064 China [c]School of Resource Environment and Tourism Capital Normal University Beijing 100048 China

This study was conducted to identify bacteria responsible for the elimination of sludge in an innovative gravel contact oxidation reactor (GCOR) and a conventional activated sludge reactor(ASR).Fluorescent in situ hybridization revealed thatα-,β-,γ- andε-Proteobacteria and Bacteroidetes were present in both *** the GCOR,γ-Proteobacteria accounted for 13%of the biofilm biomass on the carrier,whileα-,ε- andβ-Proteobacteria accounted for 12%.However,the predominant bacteria in the pores of the carrier in the GCOR were Bacteroidetes(18%),ε-Proteobacteria(13%),β- andα-Proteobacteria(10%) andγ-Proteobacteria(9%).Conversely,β-Proteobacteria(18%),Bacteroidetes(13%),α- andγ-Proteobacteria(12%) andε-Proteobacteria(5%) dominated the sediment community of the ASR.

关键词： Predominant bacteria Gravel contact oxidation reactor(GCOR) Excess sludge elimination Fluorescent in situ hybridization(FISH)

Study Progress and Trends of Strategic environmental Assessment in china

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Chinese Journal of Population,Resources and Environment 2009年第2期7卷 76-82页

作者： Cai Chunmiao1,2, 3, Shang Jincheng4.1. northeast Institute of Geography and Agroecology, Chinese Academy of sciences, changchun jilin 130012, {4. 2. Department of Geography, Harbin university, Harbin Heilongjiang 150086, {4. 3. Graduate School of Chinese Academy of sciences, Beijing 100039, {4. 4. college of urban and environmental science, northeast normal university, changchun jilin 13.024. china northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun Jilin 130012 China Department of Geography Harbin University Harbin Heilongjiang 150086 China Graduate School of chinese Academy of sciences Beijing 100039 China college of urban and environmental science Northeast Normal University Changchun Jilin 130024 China

Strategic environmental assessment (SEA) in china has developed rapidly since it was introduced into china in the 1990s. Chinese government promulgated the environmental Impact Assessment Law of china (hereinafter referred to as the EIA Law) in 2002. In this law, it is stipulated clearly that regional and sector plans should be assessed. Through investigating materials and analyzing literatures, this article analyses the practical and academic study achievements of SEA in china that have been achieved since the EIA Law was implemented, probes into the current situation of the main level of SEA in china-plan EIA, then summarizes the development characteristics, and eventually, puts forward the development trends of SEA in china. The research conclusions can offer the foundations for comprehending systematically the progress of SEA in china.

关键词： strategic environmental assessment plan environmental impact assessment china study progress characteristics development trends

Alterations in DNA methylation and genome structure in two rice mutant lines induced by high pressure

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science china(Life sciences) 2006年第2期49卷 97-104页

作者： SHEN Sile1,3, WANG Zhenwei3, SHAN Xiaohui2, WANG Hua3, LI Ling3, LIN Xuyun2, LONG Likun2, WENG Kenan4. LIU Bao2 & ZOU Guangtian1 1. National Laboratory of Superhard Materials, jilin university, changchun 130012, china 2. Institute of Genetics and Cytology,{4., changchun 13.024. china 3. college of Life science, jilin university, changchun 130012, china 4. Guangzhou Institute of Geochemistry, Chinese Academy of sciences, Guangzhou 51064., china 1. National Laboratory of Superhard Materials Jilin University Changchun 130012 China 3. college of Life science Jilin University Changchun 130012 China 2. Institute of Genetics and Cytology Northeast Normal University Changchun 130024 China 4. Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China

By using high-pressure treatment, two mutant lines were obtained from agenetically stable japonica rice cultivar Bijing38. Genomic DNA of the mutant lines, together withthe original line (Bijing38), was either undigested or digested by Hpa ⅡIMspⅠ, and then subjectedto molecular analysis using two markers, ISSR and RAPD. Results indicated that changes in the PCRamplification profiles of both markers are apparent in the two mutant lines compared with theoriginal rice cultivar, suggesting that there had been both sequence changes and DNA methylationmodifications in the mutant lines. Southern blot analysis using diverse sequences, including twocellular genes (S2 and S3), a set of retrotransposons (Osr7, Osr36, Tos19 and more), and a MITEtransposon family (mPing and Pong), confirmed the results, and indicated that changes in DNAmethylation pattern, genomic structure, and possible activation of some transposons indeed occurredin the mutant lines. Moreover, these changes are stably maintained through selfed generations and indifferent organs. Thus, our results indicate that it is possible to obtain stable mutants in riceby high pressure treatments, and the molecular basis of the mutants may include both genetic andepigenetic changes. Therefore, high hydrostatic pressure seems a promising approach for plantmutagenesis.

关键词： DNA methylation, genomic changes, high pressure, mutagenesis, rice.

Variation in egg size and nestling growth rate in relation to clutch size and laying sequence in great tits Parus major

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Progress in Natural science:Materials International 2009年第4期19卷 427-433页

作者： Yuyan You a, Jiang Fenga, Haitao Wangb, Jilong Wang b, Chao Dong b, Xunrui Sub, Hanmei Sunc, Wei Gaob, a Key Laboratory for Wetland Ecology and Vegetation Restoration of National environmental Protection, northeast normal university, changchun 13.024. {4. b college of Life science, northeast normal university, No. 5268, Renmin Street, changchun 13.024. {4. c college of jilin normal {14. (Siping Campus), Siping 136000, {4. [a]Key Laboratory for Wetland Ecology and Vegetation Restoration of National environmental Protection Northeast Normal University Changchun 130024 China [b]College of Life Science Northeast Normal University No. 5268 Renmin Street Changchun 130024 China [c]College of Jilin Normal University (Siping Campus) Siping 136000 China

The objectives of this study were to examine (1) optimal clutch size in great tits (Parus major) nesting in nest boxes; (2) variation in egg morphology and nestling growth rate with position in the laying sequence; and (3) hatching asynchrony and nestling survival as determined by infrared nest cameras. We collected data from 73 clutches in artificial nest boxes in the Zuojia Natural Preserve area in jilin Province, china, in 2005 and 2006, using infrared cameras to match laying order to hatching order for four nests. Egg morphology and growth rate were significantly affected by clutch size and position in the laying order. Overall, egg size and growth rate increased with position in the laying order. In general, it was diffcult to detect asynchronous hatching from observations alone, but data from our infrared cameras showed that early-laid eggs tended to hatch before later-laid eggs, leading to hatching asynchrony. However, females invested more into last-laid eggs and nestlings, reducing size asynchrony among the chicks and leading to higher survival rates of nestlings. Our results, therefore, provide support for the "brood survival" hypothesis rather than for the"brood reduction" hypothesis.

关键词： Artificial nest box Infrared camera Egg morphology Laying sequence Hatching asynchrony

Edaphic factors determining variation of two ecotypes of Leymus chinensis in North china

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Progress in Natural science:Materials International 2006年第11期16卷 1150-1155页

作者： ZHOU Chan~1 and YANG Yunfei~2**(1. MOE Key Laboratory of environmental Change and Natural Disasters, college of Resources science and Technology, Beijing normal {4., Beijing 100875, china 2. Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland science, northeast normal university, changchun 13.024. china) [a]MOE Key Laboratory of environmental Change and Natural Disasters College of Resources Science and Technology Beijing Normal University Beijing China [b]Key Laboratory of Vegetation Ecology Ministry of Education Institute of Grassland Science Northeast Normal University Changchun China

To identify ecotypic variation of L. chinensis, the physiological characteristics and environmental factors were measured and assessed for grey-green and yellow-green ecotypes of L. chinensis grown in the salt-alkalized and aeolian sandy soils. Although both ecotypes presented a similar salt-alkaline tolerance under the experimental conditions, they differed in several aspects. The L. chinensis grown in the aeolian sandy soils had higher water potential and chlorophyll content and lower proline content in their leaves than those grown in the salt-alkalized habitat, and the grey-green ecotype of L. chinensis in both types of soils had higher water potential, chlorophyll and proline contents than the yellow-green ecotype. Besides, grey-green ecotypes had higher salt-alkaline tolerance than the yellow-green ecotype. The stepwise regression analysis showed that soil conductance and pH value were the main ecological factors affecting the physiology of L. chinensis. From the natural distribution of the two ecotypes, we considered that salt-alkaline in the soils is the leading factor in determining ecotypic variation of L. chinensis. The two ecotypes were first named grey-green and yellow-green ecotypes respectively.

关键词： L.chinensis ecotype adaptability variation ecological factor salt-alkaline in soil.

Heavy Metal Pollution in Soils on Railroad Side of Zhengzhou-Putian Section of Longxi-Haizhou Railroad, china

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Pedosphere 2009年第1期19卷 121-128页

作者： MA Jian-Hua CHU Chun-Jie LI Jian SONG Bo Institute of Natural Resourses and environmental science Henan University Kaifeng 475004 （China） Department of Environment and Geography Pingdingshan University Pingdingshan 467000 （China） college of Public Administration Zhejiang University Hangzhou 310029 （China） college of urban and environmental science Normal University of Northeast Changchun 130024 （China）

The pollution status and horizontal distribution of heavy metals (Ni, Pb, Cr, Zn, Cu, and Cd) in the soil on railroad side along the Zhengzhou-Putian section of Longxi-Haizhou Railroad were studied by collecting soil samples along a sampling section perpendicular to the railroad at the distances of 0, 10, 20, 30, 50, 100, 200, 300, and 500 m from the railroad edge. The concentrations of heavy metals in the sampling soils were higher than those of the control site. The concentrations of Pb, Zn, and Cd were found to be the highest in the soils at the railroad edge, and then decreased with increasing distance from the railroad. The highest concentrations of Ni, Cr, and Cu in soils were located at about 10-30 m from the railroad. Compared with the single factor pollution index (SFPI) of heavy metals calculated for the control site, the average SFPI from the sampling sites decreased in the order of Cr > Cd > Pb > Zn > Ni > Cu. There were notable negative correlations between the integral pollution index (IPI) of soil heavy metals at all sampling sites and the distances from the railroad. According to three IPIs calculated from the background values of heavy metals in och-aquic Cambisols, the heavy metal concentrations in the control soil, and the 2nd levels for soil heavy metals in GB15618-1995, the study area could be divided, based on the distances from the railroad, into four pollution zones: heavy pollution zone (0-10 m), medium pollution zone (10-50 m), slight pollution zone (50-100 m), and warning zone (100-500 m), respectively.

关键词： heavy metals pollution index railroad soils

A PSTAIRE CDK-like protein localizes in nuclei and cytoplasm of Physarum polycephalum and functions in the mitosis

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Cell Research 2004年第2期14卷 169-175页

作者： Gui Ying LI~(1,2), Miao XING~(1,*), Bo HU~(1,3) ~1college of Life science, Shenzhen Key Laboratory of Microbial Gene Engineering, Shenzhen university, Shenzhen 518060, china. ~2Department of Immunology, School of Basic Medical sciences, jilin university, changchun 130021, china ~3Institute of Genetics and Cytology, northeast normal university, changchun 13.024. china. college of Life science Shenzhen Key Laboratory of Microbial Gene Engineering Shenzhen University Shenzhen 518060 China.

CDKs play key roles in controlling cell cycle progression in all eukaryotes. In plants, multiple CDKs are present, among which the best characterized CDKs are PSTAIRE CDKs. In this study, we carried out Western blot, immunoelectron microscopy and antibody treatment with an anti-PSTAIRE monoclonal antibody to explore the subcellular localization and functions of PSTAIRE CDKs in Physarum polycephalum. The results of Western blot and immunoelectron microscopy showed that in P. polycephalum, a PSTAIRE CDK-like protein was 34.kD in molecular weight and located in both nuclei and cytoplasm. In nuclei, the protein was mainly associated with chromosomes and nucleoli. The expression of the PSTAIRE CDK-like protein in both the plasmodia and nuclei showed little fluctuation through the whole cell cycle. When treated with an anti-PSTAIRE monoclonal antibody at early S phase, the cells were arrested in S phase, and the mitotic onset of P. polycephalum was blocked for about 1 h when treated at early G2 phase. Our dat

关键词： PSTAIRE CDK-like protein Physarum polycephalum mitosis immunoelectron microscopy.

Engagement of PSGL-1 enhances β2-integrin-involved adhesion of neutrophils to recombinant ICAM-1

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Acta Pharmacologica Sinica 2006年第5期27卷 617-622页

作者： Xiao-guang WANG~(2,3) Yan-ping CHENG~4.Xue-qing BA~(2,5) ~2Institute of Genetics and Cytology northeast normal university,changchun 13.024.china:~3Department of Biology,changchun normal college,changchun 130032,china ~4.6} of Life science.jilin normal university,Siping 136001,china Institute of Genetics and Cytology Northeast Normal University Changchun 130024 China Department of Biology Changchun Normal College Changchun 130032 China college of Life science Jilin Normal University Siping 136001 China

Aim:The interactions of selectins and their ligands initiate the process of leuko-cyte migrating into inflamed tissue.P-selectin glycoprotein ligand 1 （PSGL-1） isthe best characterized ligand of selectins,and has been demonstrated to mediatethe adhesion of leukocytes to all three selectins in ***-1 not only func-tions as an anchor molecule to capture the leukocytes to the activated endothelialcells by its interaction with selectins,but also transduces the signals to *** present work aimed to investigate the mechanism by whichPSGL-1-mediated signal activates neutrophils and enhances the adhesion to theendothelial ***:We detected the effects of the engagement of PSGL-1with monoclonal antibodies （mAb） or P-selectin on the adhesion of neutrophils tothe recombinant intercellular adhesion molecule-1 （ICAM-1）,and on the expres-sion of β***,the role of cytoskeleton in these process wasstudied by using inhibitor cytochalasin ***:The engagement of PSGL-Iincreased the expression of β2-integrin on the surface of neutrophils and en-hanced the adhesion of neutrophils to the recombinant *** againstCD18 impaired the adhesion of PSGL-1-engaged neutrophils to ***,the inhibitor cytochalasin B largely blocked the increase of CD 18 expression aswell as the adhesion of PSGL-1-engaged neutrophils to ***:The PSGL-1-transduced signals can enhance β2-integrin-involved adhesion ofneutrophils to the recombinant ICAM-1,and this process depends on the dynam-ics of cytoskeleton.

关键词： P-selectin ligand protein intercellular signaling peptides and proteins intercellular adhesion molecule-1 CD 18 antigens