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| 1 | Cementation of sand grains based on carbonate precipitation induced by microorganism显示文摘Microbes can produce 2 3 CO_3^(2-)in an environment conductive to precipitation,so the incompact sands will be consolidated.This technology is environmentally friendly not only because it gives strength to the sand body,but also it allows water to penetrate into the sand body,which is unlike silicate cement that will destroy the ecosystem of the earth.After comparing the activity of three kinds of bacteria,the most suitable one was chosen for the study.However,the activity of this bacterium was still not high enough for the purpose,so it was purified.A suitable program for the consolidation and cementation of sands was also found in the experiment.The compressive strength and the porosity of the cemented sand body were tested to characterize the cementation effectiveness.XRD analysis showed that a new phase of calcite was produced between sand grains.The content of calcite was detected by TG.The study showed that the precipitation program was quite important to obtain a sound cemented sand body in addition to the activity of the bacteria. | QIAN ChunXiang,PAN QingFeng &WANG RuiXing Jiangsu Key Laboratory of Construction Materials,School of Materials Science&Engineering,Southeast University,Nanjing 211189,China | 2010 | Science China(Technological Sciences)2010，53，8： | 34 |
| 2 | Analysis of sea surface temperature fronts in the Taiwan Strait and its adjacent area using an advanced edge detection method显示文摘A morphology-based edge detection method has been used to study sea surface temperature (SST) fronts in the Taiwan Strait and its adjacent area. The method is based on mathematical morphology with multi-dimensional and multi-structural elements. Using six years’ SST data from September 2002 to August 2008, we distinguished the large SST front like Kuroshio Front as well as the smaller ones: namely Taiwan Bank Front, Zhe-Min Coastal Front and Zhang-Yun Ridge Front. The seasonal and monthly variations of these fronts were also studied. Generally, the SST fronts are stronger in winter but weaker in summer. And the fronts are at their active stage during the period from January to May but at their declining stage during the period from July to October. | PI QingLing1,2,3 & HU JianYu1,2 1 State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China 2 Department of Oceanography, Xiamen University, Xiamen 361005, China 3 China Communications Construction Company First Harbor Consultants CO., LTD., Tianjin 300222, China | 2010 | Science China Earth Sciences2010，53，7： | 29 |
| 3 | Dissimilatory Fe(Ⅲ) reduction characteristics of paddy soil extract cultures treated with glucose or fatty acids显示文摘Dissimilatory Fe(Ⅲ) reduction is a universal process with irreplaceable biological and environmental importance in anoxic environments. Our knowledge about Fe(Ⅲ) reduction predominantly comes from pure cultures of dissimilatory Fe(Ⅲ) reducing bacteria (DFRB). The objective of this study was to compare the effects of glucose and a selection of short organic acids (citrate, succinate, pyruvate, propionate, acetate, and formate) on Fe(Ⅲ) reduction via the anaerobic culture of three paddy soil solutions with Fe(OH)3 as the sole electron acceptor. The results showed significant differences in Fe(Ⅲ) reduction among the three paddy soil solutions and substrate types. Bacteria from the Sichuan paddy soil responded quickly to substrate supply and showed higher Fe(Ⅲ) reducing activity than the other two soil types. Bacteria in the Jiangxi paddy soil culture solution could not use propionate as a source of electrons for Fe(Ⅲ) reduction. Similarly, bacteria in the Jilin paddy soil culture could not use succinate effectively. Pyruvate was readily used by cultures from all three paddy soil solutions, thus indicating that there were some similarities in substrate utilization by bacteria for Fe(Ⅲ) reduction. The use of glucose and citrate as substrate for dissimilatory Fe(Ⅲ) reduction indicates important ecological implications for this type of anoxic respiration. | HE Jiangzhou1,2, QU Dong1, 1. College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China.2. Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Tarim University, Alar, Xinjiang Uygur Autonomous Region, Xinjiang 843300, China | 2008 | Journal of Environmental Sciences2008，20，9： | 24 |
| 4 | Effects of salvianolic acid B on proliferation, neurite outgrowth and differentiation of neural stem cells derived from the cerebral cortex of embryonic mice显示文摘Salvianolic acid B is isolated from Salvia miltiorrhiza,the root of which is widely used as a traditional Chinese medicine to treat stroke.However,little is known about how salvianolic acid B influences growth characteristics of neural stem cells (NSCs).The purpose of the present study was to evaluate the effects of salvianolic acid B on proliferation,neurite outgrowth and differentiation of NSCs derived from the cerebral cortex of embryonic mice using MTT,flow cytometry,immunofluorescence and RT-PCR.It was found that 20 μg mL·1 and 40 μg mL·1 salvianolic acid B had similar effects on proliferation of NSCs,and a suitable concentration of salvianolic acid B increased the number of NSCs and their derivative neurospheres.The growth-promoting activity of salvianolic acid B was dependent on and associated with an accumulation in the G2/S-phase cell population.Salvianolic acid B also promoted the neurite outgrowth of NSCs and their differentiation into neurons.The mRNA for tau,GFAP and nestin were present in differentiating neurospheres induced by salvianolic acid B.However,high-level expression of tau mRNA and low-level expression of GFAP mRNA was detected in differentiated cells,in contrast to the control conditions.This collective evidence indicates that exogenous salvianolic acid B is capable of promoting proliferation of neurospheres and differentiation towards the neuronal lineage in vitro and may act in the proliferation of NSCs and may promote NSC differentiation into neuronal cells. | GUO GuoQing1,LI Bin1,WANG YuanYuan1,SHAN AiJing1,SHEN WeiZai1,YUAN Lin2 & ZHONG ShiZhen2 1Department of Anatomy,Medical College of Jinan University,Guangzhou 510630,China 2Institute of Clinical Anatomy,Key Laboratory of Tissue Construction and Detection of Guangdong Province,Southern Medical University,Guangzhou 510150,China | 2010 | Science China(Life Sciences)2010，53，6： | 21 |
| 5 | An Outlook on Promoting Healthy Development of Renewable Energy显示文摘Importance of developing alternative energy● We shall take alternative energy as a foreseeable,strategic and long-range issue, and pay great attention to it from the angle of national strategy. | Zhao Xizheng: President, China Electricity Council Shi Dinghuan: Counselor, State Council, and Chairman, Chinese Renewable Energy Association Wang Zhongying: Director, Center for Renewable Energy Development, Energy Research Institute, National Development and Reform Commission Zha Aijun: Consultant, Economic Construction Department, Ministry of Finance Xu Haoxun: Global Director Partner, McKinsey & Company Zhang Wenkai | 2008 | Electricity2008，19，4： | 15 |
| 6 | Lie symmetries of mechanical systems with unilateral holonomic constraints显示文摘In the recent twenty years, the study on the Lie symmetries and conserved quantities of constrained mechanical systems has been making great progress[1-5]. Up to now, however, all the studies are limited to the mechanical systems with ideal bilateral constraints. This note further studies the Lie symmetries of mechanical systems with unilateral holonomic constraints, and two problems of Lie symmetries for the systems are put forward and solved, i.e. finding the conserved quantity from a Lie symmetric transformation of the system and finding the corresponding Liesymmetry from an integral of the systemi ? 梛 ? Jsymmetry from an integral of the system. | ZHANG Yi & MEI Fengxiang1. Department of Basic Courses, Suzhou Institute of Urban Construction & Environmental Protection, Suzhou 215011, China 2. Department of Applied Mechanics, Beijing Institute of Technology, Beijing 10008I, China | 2000 | Chinese Science Bulletin2000，45，15： | 15 |
| 7 | 为了“一湖清水”——鄱阳湖水利枢纽工程介绍显示文摘近年来,受长江上游干支流水库群汛后蓄水及鄱阳湖上游来水减少等因素影响,鄱阳湖出现持续的秋季低枯水位情况,给湖区民生、生态、经济等方面带来严重影响.针对这种不断加剧的影响,为保持鄱阳湖'一湖清水',江西省提出兴建鄱阳湖水利枢纽工程.本文围绕枢纽建设的必要性、工程规划、作用与效益以及目前围绕工程建设开展的研究工作等方面对枢纽工程进行全面细致的阐述,旨在让大家对鄱阳湖水利枢纽工程有进一步的了解和认知. | Construction Office of Poyang Lake Water Control Project of Jiangxi Province(Construction Office of Poyang Lake Water Control Project of Jiangxi Province,Nanchang 330046,China) | 2013 | 江西水利科技2013，39，2： | 15 |
| 8 | An effective and practical method for solving an unnegligible problem inherent in the current calculation model for multi-support seismic analysis of structures显示文摘In the seismic analysis of extended structures subject to spatially varying motions, the displacement input model instead of acceleration model is usually adopted for accurate results. In this paper, a more detailed and comprehensive analysis of the displacement input model is carried out and the research shows that there exists an unnegligible problem in the current displacement model, which leads to the irrationality and unconvergence of some calculated results such as base shear etc. Based on the situation, an effective method named massless rigid element (MRE) method is presented to solve the problem. Moreover, the rationality and accuracy of the method are further assessed and the method is applied to a transmission tower-line system project using the commercially available structural analysis software SAP2000. The theoretical and numerical analyses indicate that the MRE approach is not only feasible with sufficient computational accuracy but also practical and can be easily implemented using the commercially available finite element software such as SAP2000. | LIU GuoHuan2, GUO Wei1 & LI HongNan2 1 National Engineering Laboratory for High Speed Railway Construction, School of Civil Engineering and Architecture, Central South University, Changsha 410075, China 2 Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China | 2010 | Science China(Technological Sciences)2010，53，7： | 12 |
| 9 | Miocene Bahean stratigraphy in the Longzhong Basin, northern central China and its implications in environmental change显示文摘Fossil mammal-riched Neogene strata are widely distributed in the southeast corner of the huge Longzhong Basin at Tianshui, Gansu Province, northern central China. Hipparion weihoense, a typical member of late Middle Miocene Bahean stage, was recently excavated at Yaodian along a well-exposed outcrop. Owing to the importance of the Bahean stage in the mammalian evolution and its potential for environmental change, we suggested a name of Yaodian Formation for the stratigra- phy, which is correlated to the Bahe Formation at Lantian, Shaanxi. High resolution paleomagnetic dating of the section shows that the Yaodian Formation covers the period between 11.67 Ma and 7.43 Ma, with the site bearing Hipparion weihoense being estimated at about 10.54―10.30 Ma, providing first magnetostratigraphic chronology for the Bahean Stage. The Yaodian Formation consists of fluvial channel deposits (11.67―10.40 Ma) at the bottom, floodplain deposits in the middle (10.40―9.23 Ma) and shallow lake sediments at the top (9.23―7.43 Ma). This upward fining sequence suggests that the relief in nearby mountain ranges such as West Qinling to the south and Huajia Ling to the north was greatly reduced after long-term denudation, fluvial transport capacity was low, and finally the drainage system was disintegrated, replaced with broad-shallow lakes in which only fine sediments like mud and marlite were deposited, indicating an old stage of development of a planation surface. A remarkable shift in ecology and climatic environment was found at 7.4―7.7 Ma when paleoclimate changed from early warm humid to late dry as indicated by sedimentary facies changed from early shallow lake sequence to late eolian red clays and a former coniferous-deciduous mixed forest was replaced by grassland, leading to great growth of Hipparion Fauna of Baodean stage in the region. Therefore, it is estimated that the present high relief of Qinling and drainage pattern did not come into being until Late Pliocene in response to intensive neotectonism and climate change. | LI Jijun1,2, ZHANG Jun1, SONG Chunhui1, ZHAO Zhijun2, ZHANG Yong1, WANG Xiuxi 1, ZHANG Jianming1 & CUI Qiaoyu1 1. Key Laboratory of Western China’s Environmental Systems (Ministry of Education) & College of Earth and Environment Sciences, Lanzhou University, Lanzhou 730000, China 2. Jiangsu Key Laboratory of Environmental Change and Ecological Construction & College of Geography, Nanjing Normal University, Nanjing 210097, China | 2006 | Science China Earth Sciences2006，49，12： | 12 |
| 10 | Study on Control Countermeasures of Agricultural Non-point Source Pollution in Lakeside Belt of Poyang Lake——Taking Duchang Section in the Lower Reaches of Poyang Lake as Example显示文摘[Objective] The aim was to study the control countermeasures of agricultural non-point source pollution in lakeside belt of Poyang Lake.[Method] The current situation of water quality of Poyang Lake was analyzed firstly,then the causes of agricultural non-point source pollution in Duchang section of Poyang Lake were studied,finally corresponding control countermeasures were put forward.[Result] Agricultural non-point source pollution in Duchang section of Poyang Lake was mainly related to the rapid development of pearl industry and livestock industry,aggravated soil erosion and excessive utilization of fertilizer.Based on analysis of current environmental situation and bearing capability of resources in Poyang Lake basin,agricultural non-point source pollution would be controlled through the reduction of external source pollution load,restoration of river wetland and construction of aquatic ecosystem.After the primary implementation of agricultural non-point source pollution control project,the amount of agricultural non-point source pollution in demonstration plot was reduced,and the quality of effluent met the first Class (Class A) of state Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB18918-2002).Meanwhile,biodiversity index in river wetland increased by about 30%,so the pollution load entering Poyang Lake was decreased.[Conclusion] The study could provide technology integration and demonstration for the environmental remediation in lakeside belt of Poyang Lake. | ZHANG Yang-fan1,TAO Chun-yuan1,HUANG Yi2 1.Research Center of Poyang Lake Eco-economy,Jiujiang University,Jiujiang 332005,China 2.Duchang Poyang Lake Eco-economic Zone Construction Office,Duchang 332600,China | 2011 | Meteorological and Environmental Research2011，2，7： | 12 |
| 11 | Research and application on the technology system of multi-scale assessment of the impact on the atmospheric environment by urban planning显示文摘Improvement of the atmospheric environment in urban planning is an important issue to implement the sustainable development of cities. In this paper, in order to meet the demand of planning office to compare and assess quantitatively of the designs in multi-scale, based on geographical information system (GIS) data with high resolution, a multi-scale numerical modeling system for the atmospheric environment impact of urban planning is set up, and the multi-scale assessment index system is established, which compose the technology system of multi-scale assessment of the impact on the atmospheric environment by urban planning. In urban planning (urban development of Beijing) and optimizing layouts of Olympic Green, it has been applied to quantitatively evaluating the impact on atmospheric environment by urban planning before construction, which offers scientific foundation to optimize the whole and local urban layout. | WANG Guangtao, WANG Xiaoyun, MIAO Shiguang, JIANG Weimei, GUO Wenli, JI Chongping & CHEN Xianyan School of Architecture, Tsinghua University, Beijing 100084, China Ministry of Construction of China, Beijing 100044, China Beijing Meteorological Bureau, Beijing 100089, China Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China | 2005 | Science China Earth Sciences2005，48，z2： | 11 |
| 12 | Progress in modifications and applications of fluorescent dye probe显示文摘This review summarizes the labeling technology and applications of fluorescent dye probe in biology,especially the characteristics,modification and applications of cyanine dyes.Based on the currently available modification methods of fluorescent dye probe,we discuss the studies of enhancing the water-solubility,improving the degree of biocompatibility and target-labeling,increasing the sensitivity and decreasing the toxicity of fluorescent dye.We also give a brief introduction on the modification method,that the fluorescent dye is directly introduced onto the cell surfaces by amine derivatives or azides to intensify the transferring information of aberrant cells.We suggest that fluorescent dye modified with chitosan oligosaccharide can obviously increase the degree of biocompatibility and target-labeling,and decrease the degree of toxicity. | Xuening Fei,Yingchun Gu Department of Material Science and Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China | 2009 | Progress in Natural Science:Materials International2009，19，1： | 9 |
| 13 | Game theory approach to optimal capital cost allocation in pollution control显示文摘GametheoryapproachtooptimalcapitalcostalocationinpolutioncontrolChenWenyingInstituteofNuclearEnergyTechnology,TsinghuaUniver... | Chen Wen ying Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084,China Hou Dun Urban Water Resources Center, Ministry of Construction, Beijing 100007,China | 1998 | Journal of Environmental Sciences1998，10，2： | 8 |
| 14 | A possible Younger Dryas-type event during Asian monsoonal Termination 3显示文摘Seven U-Th dates, 560 δ 18O data and microscopic sequences were measured for sta- lagmites from two high-altitude caves in Shennongjia area, Hubei Province. Variations of the de- cadal-resolution stalagmite δ 18O record from Swan Cave (1600 m elevation) reflect large spatial changes in circulation strength and precipitation of Asian monsoon. The evidence comes from a great similarity among the stalagmite δ 18O records from Nanjing, Jiangsu Province; Libo, Guizhou Province and here studied area during the last deglaciation, including a part interval of Younger-Dryas event and Bolling-Allerod. A 30-year-resolution stalagmite δ 18O record from Yongxing Cave (1400 m eleva- tion), 70 km away from Swan Cave, reveals a rapid transition of Asian monsoon climate during Ter- mination 3 at about 245±5 kaBP. Based on 3 U-Th dates and about 5000 continuous annual bands, a millennial dry episode has been observed during Asian monsoonal Termination 3 from the Yongxing δ 18O profile. With respect to its structure, duration and transition, the dry reversal, as indicated by our stalagmite δ 18O record, generally agrees with the pattern of the YD event well-expressed in the Chi- nese stalagmite δ 18O records. This YD-type event is characterized by a large decrease in δ 18O value as much as 2.30‰, more than half of the δ 18O excursion between glacial/interglacial periods, and lasts 1371±59 a determined by the annual counting chronology. After this event, the monsoon climate shifted abruptly into the interglacial period within 74±4 a. Our data corroborate the view that the re- peated occurrence of YD-type event was not an “accident”, possibly resulted from the coupling of ice-sheet and oceanic/atmospheric circulations. | CHEN Shitao1, WANG Yongjin1, KONG Xinggong1, LIU Dianbing1, CHENG Hai2 & R.L. Edwards2 1. College of Geography Science, Nanjing Normal University, Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Nanjing 210097, China 2. Department of Geology and Geophysics, University of Minnesota, Minneapolis MN55455, USA | 2006 | Science China Earth Sciences2006，49，9： | 7 |
| 15 | Development of welding technique for petrochemical industry in China显示文摘DevelopmentofweldingtechniqueforpetrochemicalindustryinChina￥LIQinglin(Sino-PetrochemicalCorporation,Beijing(100029)ZHOUZhend... | LI Qinglin (Sino-Petrochemical Corporation, Beijing (100029)ZHOU Zhende and CHEN Ke (Sinopec Yanshan Petrochemical Company, Beijing)ZHEN Guorui and ZHANG Youchuan (The Third Construction Company of Sinopec, Beijing) | 1994 | China Welding1994，3，2： | 7 |
| 16 | 培养21世纪的高级工程人才——建筑环境与设备工程专业人才培养模式探讨显示文摘建筑环境与设备工程专业是我国教育部本次专业调整新设置的一个专业。本文就如何适应21世纪社会经济和科学技术的发展趋势。 | Fu Xiangzhao (Faculty of Urban Construction Chongqing Jianzhu University Chongqing 400045 China) | 1999 | 高等建筑教育1999，35，S1： | 7 |
| 17 | Pollen assemblage characteristics of lakes in the monsoon fringe area of China显示文摘This paper presents the pollen assemblages from 108 surface sediment samples from 4 lakes(the Lake Daihai,Lake Hongjiannao,Lake Hulunnao and Lake Duikounao) in the monsoon fringe area of China.The herb pollen taxa Artemisia,Chenopodiaceae,Poaceae and Compositae are the major components of pollen assemblages of the 4 lakes and Pinus,Betula,Quercus,Ulmus,Populus,Ostryopsis and Elaeagnaceae are frequently presented,which reflect regional and local vegetation well.The mean similarity coefficients for samples from the Lake Daihai,Lake Hongjiannao,Lake Hulunnao and Lake Duikounao are 0.66 ± 0.17,0.71 ± 0.11,0.73 ± 0.12 and 0.67 ± 0.12 respectively,so pollen assemblages are relatively consistent in each lake,which shows that focusing and mixing effects have occurred before and after pollen deposition.However,pollen assemblages do differ between sampling sites in each lake.The largest difference is seen in the Lake Daihai,followed by the Lake Duikounao,Lake Hulunnao and Lake Hongjiannao(The mean Euclidean distance is 20.09 ± 11.11,11.22 ± 3.64,10.67 ± 4.03 and 8.44 ± 4.51 respectively).These differences are possibly caused by the differences of focusing and mixing effects,pollen source areas,drainage areas and regional vegetation compositions.The Lake Daihai and Lake Hongjiannao have water deeper than 5 m and strong re-suspension,focusing and mixing effects occur in the lakeshore and shallow water areas,where pollen concentrations are lower than in deeper lake areas.In the Lake Hulunnao and Lake Duikounao,with depths less than 5 m,re-suspension and mixing effects are obvious across the whole lake area,so pollen assemblages and pollen concentra-tions are more consistent among sampling sites in each lake.Comparison between the lake samples and samples from the inflowing river reveals that wind is primary pollen transportation force in the Lake Hongjiannao,where the consistency of pollen assemblage is conspicuous,while there is greater variation in lakes where pollen input is dominated by waterborne sources. | TIAN Fang1,2,XU QingHai1,2,3,LI YueCong1,2,CAO XianYong1,2,WANG XueLi1,2 & ZHANG LiYan1,2 1 College of Resources and Environmental Sciences,Hebei Normal University,Shijiazhuang 050016,China 2 Hebei Key Laboratory of Environmental Change and Ecological Construction,Shijiazhuang 050016,China 3 Key Laboratory of Western China’s Environmental System(Ministry of Education),Lanzhou University,Lanzhou 730000,China | 2008 | Chinese Science Bulletin2008，53，21： | 7 |
| 18 | 中国2000年水工业可持续发展战略——水工业科技产业化显示文摘没有水的可持续利用和保护,社会经济的持续发展就不可能实现.本文基于这一认识,提出了必须在我国建立水工业2000年和2010年战略目标,以及实现这一目标的途径和“九五”期间的对策、主攻方向、关键技术与措施等. | Scientific and Technical Department of Ministry of Construction, PRC | 1995 | 给水排水1995，21，5： | 7 |
| 19 | 陆域预制沉箱采用半潜驳出运下水新工艺显示文摘本文介绍陆域预制沉箱的一种新的出运下水方法。该方法采用设有异型船艏的半潜驳及搭岸结构 ,可使沉箱安全、平稳牵引上船 ,且无需对船体吃水进行即时调整。该工艺投资省、投产快、效率高、通用性强 ,为远离专用沉箱预制场的工程建设项目采用沉箱结构创造了条件。具有较好的推广价值。 | No.2 Engineering Company CHEC Tianjin Port Construction Corporation | 2000 | 中国港湾建设2000，20，5： | 6 |
| 20 | Record of environmental change by α-cellulose δ ^(13)C of sphagnum peat at Shennongjia,4000―1000 aBP显示文摘The Dajiuhu Basin at Shennongjia,located within typical East Asian Monsoon region,preserves a sub-alpine sphagnum peat deposition in its central area.The topmost 120 cm of the peat covers the last 4000 years according to AMS 14C dating of pollen concentration.Carbon isotope of α-cellulose,extracted from sphagnum peat,provides a quantitative reconstruction of atmospheric relative humidity,based on transfer functions of C3 plants carbon isotopic fractionation equation and the bryophyte photosynthesis CO2 absorption rate equation.δ 13C,TOC and C/N variations reveal that the Dajiuhu area has experienced a long-term tendency to dry during 4000―1000 aBP,with a major transition happening around 3000 aBP.Four relative dry events are identified at 3400―3200,3000―2600,2200―2000 and 1600―1400 aBP,respectively,corresponding to those climate events documented in many global records.Three periodicities,664 a,302 a and 277 a enclosed in the atmospheric humidity of Dajiuhu are correlated to the cycles of solar activities.The weakening of East Asia summer monsoon during this period registered in the Dajiuhu peat is consistent with the synchronous weakening of Indian Monsoon.This trend may be attributed to gradual decrease of Northern Hemispheric summer solar insolation and the consequently southward migration of Intertropical Convergent Zone(ITCZ). | ZHU Yun1,2,CHEN Ye1,2,ZHAO ZhiJun1,2,XIAO JiaYi1,2,ZHANG MaoHeng1,2,SHU Qiang1,2 & ZHAO HongYan1,2 1 College of Geography Science,Nanjing Normal University,Nanjing 210046,China 2 Jiangsu Key Laboratory of Environmental Change and Ecological Construction,Nanjing 210046,China | 2009 | Chinese Science Bulletin2009，54，20： | 6 |
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