DOCSLIB.ORG

Release Flux of Mercury from Different Environmental Surfaces In

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Release Flux of Mercury from Different Environmental Surfaces In Chemosphere 64 (2006) 1845–1854 www.elsevier.com/locate/chemosphere Release flux of mercury from different environmental surfaces in Chongqing, China Dingyong Wang a,b,*, Lei He a, Xiaojun Shi a, Shiqiang Wei a,c, Xinbin Feng b a College of Resources and Environment, Southwest University, Chongqing 400716, PR China b State Key Lab of Environmental Geochemistry, Institute of Geochemistry, CA, Guiyang 550001, PR China c Chongqing Key Lab of Agricultural Resources and Environment, Chongqing 400716, PR China Received 7 July 2005; received in revised form 24 January 2006; accepted 24 January 2006 Available online 9 March 2006 Abstract An investigation was conducted to estimate mercury emission to the atmosphere from different environmental surfaces and to assess its contribution to the local mercury budget in Chongqing, China. Mercury flux was measured using dynamic flux chamber (DFC) at six soil sites of three different areas (mercury polluted area, farmland and woodland) and four water surfaces from August 2003 to April 2004. The mercury emission fluxes were 3.5 ± 1.2–8.4 ± 2.5 ng mÀ2 hÀ1 for three shaded forest sites, 85.8 ± 32.4 ng mÀ2 hÀ1 for farming field, 12.3 ± 9.8–733.8 ± 255 ng mÀ2 hÀ1 for grassland sites, and 5.9 ± 12.6–618.6 ± 339 ng mÀ2 hÀ1 for water surfaces. Mercury exchange fluxes were generally higher from air/water surfaces than from air/soil surfaces. The mercury negative fluxes were found in tow soil sites at overcast days (mean = À6.4 ± 1.5 ng mÀ2 hÀ1). The diurnal and seasonal variations of mercury flux were observed in all sites. The mer- cury emission responded positively to the solar radiation, but negatively to the relative humidity. The mercury flux from air/soil surfaces was significantly correlated with soil temperature, which was well described by an Arrhenius-type expression with activation energy of 31.1 kcal molÀ1. The annual mercury emission to the atmosphere from land surface is about 1.787 t of mercury in Chongqing. Ó 2006 Elsevier Ltd. All rights reserved. Keywords: Atmosphere; Dynamic flux chamber; Flux; Mercury; Natural emission 1. Introduction fluxes from environmental surfaces (Schroeder, 1992; Kim and Lindberg, 1995; Kim et al., 1995; Gustin et al., As a global pollutant, mercury may be methylated in 1999). According to available literatures, natural mercury environment and accumulate in organisms, causing serious release from the land contributed about 10% of the total impacts on ecosystem. Atmospheric mercury plays an emitted mercury amount, while that from the ocean important role of global mercury pollution. It mainly accounted for about 30% of all (Nriagu, 1989; Lindqvist comes from anthropogenic and natural mercury emission et al., 1991). The main form of mercury released from nat- and it may enter the ocean and terrestrial ecosystems via ural sources is elemental mercury, which could stay for a wet and dry deposition again. So, it is important to under- relatively long period in the atmosphere. Therefore, the stand the emission and cycling of mercury. Research on mercury emission from land surfaces is considered to be biogeochemical cycle of mercury in recent years has been the major contributors of global atmospheric mercury mostly concentrated on assessment of mercury release (Nriagu, 1989; Lindqvist et al., 1991). However, amount of mercury released to the atmosphere from land surfaces is still under debate (Lindqvist et al., 1991). The global * Corresponding author. Address: College of Resources and Environ- ment, Southwest University, Chongqing 400716, PR China. Tel.: +86 23 biogeochemical cycle of mercury could be fully understood 6825 0484. only when the amount of mercury released from the E-mail address: [email protected] (D. Wang). natural sources is clarified. Mercury exchange flux over 0045-6535/$ - see front matter Ó 2006 Elsevier Ltd. All rights reserved. doi:10.1016/j.chemosphere.2006.01.054 1846 D. Wang et al. / Chemosphere 64 (2006) 1845–1854 environmental surfaces is a key parameter to estimate glo- covered by a 2–4 cm thick of undecomposed hardwood leaf bal or regional mercury release, to understand and simulate litter. The GLSM site is dominated by privet and phoenix mercury recycling in different area, and to evaluate mer- tree (accounting for more than 60%) with a moderately- cury impacts on the environment as well (Rasmussen, closed canopy (>85%). There are also a few shrubs. The 1994; Fitzgerald et al., 1998; Gustin et al., 1999). soil at this site was Typic Purpli-Udic Cambosols, without In China, many studies on mercury pollution have been any deadwood on the surface. The JYSM site with a well- carried out previously. However, the mercury fluxes over closed canopy (>90%), dominated by broadleaf, is arbor in environmental surfaces were poorly understood. Here, we this area. The soil at this site is also Alliti-Perudic Ferro- measured mercury fluxes from different environmental sur- sols, with a 1–2.5 cm thick of undecomposed hardwood faces in Chongqing, China. Environmental factors affecting leaf litter. Two grassland sites are situated on the campus the exchange such as soil temperature, solar radiation, rela- of Southwest University (SWU) (29°480 N, 106°240 E), tive humidity and air temperature were also investigated. and at Weather Observation of Beibei (WOBB) (29°480 The contribution of mercury emission to the regional mer- N, 106°240 E). The soil at the SWU site is Typic Purpli- cury budget was estimated as well. Udic Cambosols completely covered by 5–8 cm tall grasses. The soil at the WOBB site is also Typic Purpli-Udic Cam- 2. Materials and methods bosols, which is surrounded by many factories (including clinical thermometer factory, glass factory, and pharmacy 2.1. Site description factory). The grass is about 2–5 cm tall. The farmland for the study is located at the experimental site of Southwest Six soil sites (three forests, two grasslands and one farm- University (29°480 N, 106°240 E), which is 250 m away land) were selected for this study. Three forest sites are from a highway. The soil is Typic Purpli-Udic Cambosols located at the Simianshan Mountain (SMSM) of Jiangjin with no crops planted. County (28°350 N, 106°260 E), the Geleshan Mountain Four water sites are all in Beibei, Chongqing. They (GLSM) of Shapingba District (29°340 N, 106°250 E), are located at the Jialing River (JLR) (29°500 N, 106°260 and the Jinyunshan Mountain (JYSM) of Beibei District E), the Longtanzi Reservoir (LTZR) (29°490 N, 106°240 (29°560 N, 106°220 E) (Fig. 1). The SMSM site is a hard- E), the Longfengxi Brook (LFXB) (29°490 N, 106°250 E), wood forest with a well-closed canopy (>95%), dominated and the pond of SWU (29°480 N, 106°240 E). The JLR by broadleaf. The soil at this site is Alliti-Perudic Ferrosols, site is 300 m upriver from a dock, and the water was clear Fig. 1. Schematic diagram of sampling sites. D. Wang et al. / Chemosphere 64 (2006) 1845–1854 1847 without any particles. The LTZR site is near the dam, chamber to LumexÒ Multifunctional mercury analyzer which is surrounded by farmland and house, and there RA-915+ (sampling flow rate = 20 l minÀ1, each air sam- are a factory and residential area in its upriver area. pling time = 5 min). Both inlet (Ci) and outlet (Co) mercury Because industry wastewater and sewage were released to concentrations were continuously monitored alternatively the reservoir, the water was not clear and had obvious by the RA-915+ automated mercury analyzer. A 10 min particles. The Longfengxi Brook is a branch of the Jialing average of Co (two 5 min samples) and a 10 min-average River, the LFXB site is about 1000 m far away the of Ci (two 5-min samples) were used to obtain a 20 min debouchment. The water in the SWU pond was muddy averaged Hg flux (F) from Eq. (1) (Lindberg and Price, and dark. 1999; Zhang et al., 2001): ðC À C ÞQ 2.2. Measurement methods F ¼ o i ð1Þ A À2 À1 2.2.1. Technique for mercury flux measurement where F is the flux (ng m h ), Ci and Co are total gas A schematic diagram of a dynamic flux chamber (DFC) mercury (TGM) concentrations of the DFC inlet and out- with the LumexÒ Multifunctional mercury analyzer RA- let in ng mÀ3, respectively. Q is flushing flow rate through 915+ (operated by CVAAS plus Zeeman Correction, the chamber in m3 hÀ1 (1.2 m3 hÀ1 for these measure- 1-Hz data stream) is given in Fig. 2. The flux chamber ments), A is area of the open bottom surface of the dimension of 20 · 20 · 60 cm (Xiao et al., 1991) with a chamber. removable bottom plate was constructed with 5 mm thick The chamber blanks were measured in laboratory and Plexiglas, and its volume was 0.024 m3. The Plexiglas was field, before and after the flux measurements. The labora- chosen because of its low achievable chamber blank and tory blanks (n = 10), obtained by measuring the mercury transparency to light. Its transparency allows good pene- flux over a clean Plexiglas sheet, were in the range of 1.2– tration of solar radiation, which is responsible for the for- 2.1 ng mÀ2 hÀ1. The field blanks (n = 32), obtained before mation of photo-induced gaseous mercury in water or soil. and after the flux measurements at each sampling site, When placed on a surface for flux measurements, the bot- ranged from 1.1 to 2.3 ng mÀ2 hÀ1, with an average of tom plate of the chamber is removed to allow mercury to 1.33 ± 0.31 ng mÀ3.
Load more

Recommended publications
  • The Construction of Departments of Sichuan Provincial Institute of Education During Social Changes
    ISSN 1927-0232 [Print] Higher Education of Social Science ISSN 1927-0240 [Online] Vol. 11, No. 3, 2016, pp. 38-41 www.cscanada.net DOI:10.3968/8865 www.cscanada.org The Construction of Departments of Sichuan Provincial Institute of Education During Social Changes PENG Xinglin[a],* [a]Lecturer, Chongqing Youth Vocational and Technical College, history, especially the construction of its departments in Chongqing, China. order to get new inspiration in history. *Corresponding author. Received 21 June 2016; accepted 19 August 2016 Published online 26 September 2016 1. THE MISSION OF SICHUAN PROVINCIAL INSTITUTE OF EDUCATION Abstract According to archival records, after Sichuan Rural Based on the detailed collating of the original archival Construction Institute was restructured and changed into materials, this paper combs and analyzes the construction Sichuan Provincial Institute of Education, its initial core and adjustment of departments at Sichuan Provincial work was still “to focus on rural construction” (Gao, Institute of Education in the course of its development 1937). After the outbreak of the war, faculties of the over the past 15 years, and draws inspiration from it. The institution believed that China’s economy is “based on survival and development as well as the construction of agriculture” and “to support long-term war and ensure departments of higher education institutions must conform its success, we should still stick to the construction of to the needs of social change, serve the requirements of agriculture” (Du, 1937). In 1938, due to the serious social change and have timely reform. At the same time, national crisis, the national government provided colleges and universities are bound to have a positive for that higher education should also include social effect on social change.
    [Show full text]
  • Download Thesis
    This electronic thesis or dissertation has been downloaded from the King’s Research Portal at https://kclpure.kcl.ac.uk/portal/ Across the Geo-political Landscape Chinese Women Intellectuals’ Political Networks in the Wartime Era 1937-1949 Guo, Xiangwei Awarding institution: King's College London The copyright of this thesis rests with the author and no quotation from it or information derived from it may be published without proper acknowledgement. END USER LICENCE AGREEMENT Unless another licence is stated on the immediately following page this work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International licence. https://creativecommons.org/licenses/by-nc-nd/4.0/ You are free to copy, distribute and transmit the work Under the following conditions: Attribution: You must attribute the work in the manner specified by the author (but not in any way that suggests that they endorse you or your use of the work). Non Commercial: You may not use this work for commercial purposes. No Derivative Works - You may not alter, transform, or build upon this work. Any of these conditions can be waived if you receive permission from the author. Your fair dealings and other rights are in no way affected by the above. Take down policy If you believe that this document breaches copyright please contact [email protected] providing details, and we will remove access to the work immediately and investigate your claim. Download date: 30. Sep. 2021 Across the Geo-political Landscape: Chinese Women Intellectuals’ Political
    [Show full text]
  • Printmgr File
    DIRECTORS, SUPERVISORS AND PARTIES INVOLVED IN THE GLOBAL OFFERING DIRECTORS Name Address Nationality Executive Directors Sun Nengyi No. 2-301 Block 6 Chinese Gulousi Village Nanan District Chongqing City China He Yong 6-2 Unit 3 Chinese No. 1 Yuanbao Village Shuangqiao District Chongqing City China Liao Shaohua No. 12 to No. 130 Chinese Jingjian Village Huaxi Town Banan District Chongqing City China Chen Xianzheng 9-4 Unit 1 Chinese No. 8 Gulouwu Village Nanan District Chongqing City China Non-executive Directors Huang Yong 4-5 Block 25 Chinese No. 1111 Jinkai Road Yubei District Chongqing City China Yu Gang 23-1 Chinese No. 26 Danlong Road Nanan District Chongqing City China 61 DIRECTORS, SUPERVISORS AND PARTIES INVOLVED IN THE GLOBAL OFFERING Name Address Nationality Yang Jingpu 3-2 Block 1 Chinese No. 46-1 Yanyu Castle Nanan District Chongqing City China Wu Jian Unit 1 Chinese No. 9 Daijia Village Yuzhong District Chongqing City China Independent non-executive Directors Lo Wah Wai Duplex C, 19th and 20th Floor Chinese Tower 1, The Astrid 180 Argyle Street Ha Tan Wei Kowloon Hong Kong Ren Xiaochang No. 1 on Level 4 Chinese Unit 1 Block 25 Zhujiang Garden Jiulongpo District Chongqing City China Kong Weiliang 16-4 Chinese No. 2-128 Beixia Road Beibei District Chongqing City China 62 DIRECTORS, SUPERVISORS AND PARTIES INVOLVED IN THE GLOBAL OFFERING Name Address Nationality SUPERVISORS Duan Rongsheng 15-3 Chinese No. 155 Zhongshansan Road Yuzhong District Chongqing City China Ye Zusheng 7-2 Chinese No. 385 Xinhua Road Shizhong District Chongqing City Sichuan Province China Wang Rongxue 1-2 Chinese No.
    [Show full text]
  • Chongqing Handbook All Essential Information You Need to Know About Chongqing
    Chongqing Handbook All essential information you need to know about Chongqing Presented by Chongqing Expat Club www.cqexpat.com Copyright 2008. All Rights Reserved. Table of Contents CHAPTER ONE - ABOUT CHONGQING Page 3 CHAPTER TWO – THE CITY HUBS Page 3 CHAPTER THREE – CITY TRANSPORT Page 4 CHAPTER FOUR – ATTRACTIONS Page 6 CHAPTER FIVE – NIGHTLIFE & ENTERTAINMENT Page 16 CHAPTER SIX – ACCOMMODATION Page 18 CHAPTER SEVEN – INTERNATIONAL FOOD Page 21 CHAPTER EIGHT– SHOPPING Page 24 CHAPTER NINE - EDUCATION Page 27 CHAPTER TEN – HEALTH CARE Page 29 CHAPTER ELEVEN – EMBASSIES & CONSULATES Page 31 CHAPTER TWELVE – USEFUL CONTACTS Page 32 CHAPTER THIRTEEN – USEFUL WORDS and PHRASES Page 32 CHAPTER ONE - ABOUT CHONGQING Chongqing is the economic hub of southwest China and the fourth Municipality in China (after Beijing, Shanghai and Tianjin). Chongqing is situated in the east of southwest China, about 2,500km up the Yangtze River from Shanghai. Under its jurisdiction there are 40 districts, cities and counties. It covers an area of 82,000 square kilometres with a total population of 31 million. An estimated 6 million people live in urban Chongqing city. Downtown Chongqing lies at the point where the Yangtze River and the Jialing River merge. Known as the Mountain City, the whole city is built against a backdrop of hills and rivers, characterized by zig-zagging roads and overlapping houses. It is also known as one of the four Furnace Cities for its hot summers and the Foggy City for its misty winters. CHAPTER TWO – THE CITY HUBS Chongqing has five major business and shopping precincts - the oldest and most important being Jiefangbei situated within what remains of the Old Walled City.
    [Show full text]
  • Yang, J.1 – Duan, R.2*
    Yang - Duan: The effect of artificial illumination on postponing plant phenology - 13289 - THE EFFECT OF ARTIFICIAL ILLUMINATION ON POSTPONING PLANT PHENOLOGY YANG, J.1 – DUAN, R.2* 1Faculty of Architecture and Urban Planning, Chongqing University, Chongqing 400030, China (phone: +86-159-0933-4280) 2School of Arts, Chongqing Technology and Business University, Chongqing 400067, China *Corresponding author e-mail:[email protected] ; phone: +86-136-0834-7300 (Received 9th Jun 2019; accepted 28th Aug 2019) Abstract. The phenology of landscape plural can predict the urban environment and guide the development of the city. The aim of the study is to get the relationship between urban environment and plant phenology. The methods monitored the phenology of the environment and garden plants in the main urban area of Chongqing from 2016 to 2019. And it is concluded that artificial light of garden lighting is between 1000 to 4000 Lx in Chongqing, and the application of LED (Light Emitting Diode) is the highest number. At the same time, the flowering period of trees is more susceptible than that of the shrubs; the flowering period of plants is more susceptible than the evergreen plants; and the fruit period of trees is earlier; the flowering period is prolonged. The flowering stage and flowering period of pruning plants are longer than the plants under natural state. This data should prove useful for future research of the subject. Keywords: nightscape lighting, plant phenology, garden plants, environment and phenology Introduction The urban environment has a great impact on plant phenology. Since 1950, the flowering period of urban garden plants has moved 1~3 days ahead in Europe (Menzel, 2002), and from 1902 to 2006, the flowing period for the shrub species in nearly 1/4 of North America also came much earlier (Neil, 2010).
    [Show full text]
  • University of Illinois at Urbana-Champaign 2017 Chinese Librarians Scholarly Exchange Program (USA)
    University of Illinois at Urbana-Champaign 2017 Chinese Librarians Scholarly Exchange Program (USA) 32 Program Speakers (Partial List) Formed by a partnership between the University of Illinois at Urbana-Champaign Greg McCormick—Acting Deputy Director of Illinois State Library (UIUC) and the Society for Academic Library, Library Society of China, the Chinese McCormick has rich managerial experience in libraries. Librarians Scholarly Exchange Program (CLSEP) is an academic scholarly exchange program whose participants include Chinese librarians and scholars. Built on the past Beth Sandore Namachchivaya -- Associate Dean of Libraries, University of Illinois Urbana-Champaign Namachchivaya leads library programs that focus on discovery services, digital libraries, eResearch, and digital curation. eleven years successful Chinese Librarians Scholarly Exchange Programs, CLSEP is She has broad research interests that key on the design and evaluation of digital libraries. She was co-Principal developed to focus on the trends and challenges faced by libraries all over the world. It Investigator for the Illinois’ National Digital Preservation Partnership supported by the Library of Congress from 2004- gathers excellent resources from American library and information science fields and 2010, and is now involved with the ArchivesSpace project. presents the latest achievements of American libraries that are among the first-class libraries of the world. CLSEP librarian scholars seek solutions for challenges faced by Maureen Sullivan – President of Sullivan Associates and Organization Development Consultant Chinese and American libraries through reports, case studies, academic Sullivan is a past ALA president. Her experience includes near ten years as the human resources administrator at Yale communications and field trips. CLSEP is a perfect fit for Chinese academic library University.
    [Show full text]
  • Download Article (PDF)
    Advances in Social Science, Education and Humanities Research (ASSEHR), volume 340 2019 International Conference on Education Innovation and Economic Management (ICEIEM 2019) Study on the Development of Fuling Mustard Industry Guided by the Rural Vitalization Strategy Yu Liao Tingting Qian Yangtze Normal University, Chongqing, China Southwest University Southwest Minzu University, Chengdu, China Chongqing, China Abstract—Since their advent in 1898, Fuling mustard have vitalization. been gradually launched to the market and exported to all corners of the world. Chinese Fuling Mustard, European sour II. CULTURAL AND HISTORICAL BACKGROUND OF FULING cucumbers and German sweet and sour cabbages are well-known both at home and abroad as “world’s top three pickled MUSTARD vegetables”. The Fuling District considers the prosperity of the Since their advent in 1898, Fuling mustard have become a pickle industry as focus and breakthrough of rural vitalization. specialty diet in China and even in the world over nearly 120 Anyhow, the competitive resources and practical development of years of development, with rich cultural and historical the pickle industry are constrained by poor conditions and small connotations involved. A good understanding of the history of scale of Chinese cabbage head production, low added value of Fuling mustard can better help us understand the current status products, diversified but less known brands and difficulty in the and problems for the development of the pickle industry. treatment of production sewage. Thus, Fuling should remain committed to building a pickle industry cluster and deepening the integration of multiple regulations by actively relying on A. Advent of Fuling Mustard and Their Social and Ecological leading producers of pickles and linking primary, secondary and Culture tertiary industry chains.
    [Show full text]
  • Curriculum Vitae
    CURRICULUM VITAE Name: Jun XU Nationality: China Residence: Chengdu, Sichuan, China Email: [email protected] Phone: +86-28-84519615 (Home)；85412567（W/F） Current Academic Positions: Executive Chair，Himalaya Multimedia Database Project(2014- present) Professor, History Department, Sichuan University (2009- present) Senior Researcher，Anthropology Institute, Sichuan University (2005-present) Senior Researcher, Tibetan Studies Center, Sichuan University (2000- present) Research Interests： Cultural Diversity, Gender, Migration, Historical, Social and Cultural Changes; Multimedia database; Resettlement Issues, Social and Economic Development in Tibetan Areas. Academic Background: 2014.1-7 Visiting scholar, Mongolia & Inner Asia Studies Unit, University of Cambridge 2010.7-10 Visiting scholar, Harvard-Yenching Institute, Harvard University 2003-2009 Associate Professor, History Department, Sichuan University 2001-2002 Visiting scholars, Harvard-Yenching Institute, Harvard University 1997-2003 Lecturer, History Department, Sichuan University 1995-1997 Assistant Lecturer, History Department, Sichuan University Education Background: 1999 Ph.D. Sichuan University 1995 M.A. Sichuan University 1992 B.A. Sichuan University Honors and Awards: 2016 Achievement Awards of Sichuan University 2015 Academic Leaders of Sichuan Province 2009 Prospected Scholar in New Century, Honor from Chinese Ministry of Education 2008 Distinguished Researcher Award from Sichuan University 2008 “An Introduction to Anthropology” as Excellent Course in Sichuan Province. 2005
    [Show full text]
  • P020200328433470342932.Pdf
    In accordance with the relevant provisions of the CONTENTS Environment Protection Law of the People’s Republic of China, the Chongqing Ecology and Environment Statement 2018 Overview …………………………………………………………………………………………… 2 is hereby released. Water Environment ………………………………………………………………………………… 3 Atmospheric Environment ………………………………………………………………………… 5 Acoustic Environment ……………………………………………………………………………… 8 Solid and Hazardous Wastes ………………………………………………………………………… 9 Director General of Chongqing Ecology Radiation Environment …………………………………………………………………………… 11 and Environment Bureau Landscape Greening ………………………………………………………………………………… 12 May 28, 2019 Forests and Grasslands ……………………………………………………………………………… 12 Cultivated Land and Agricultural Ecology ………………………………………………………… 13 Nature Reserve and Biological Diversity …………………………………………………………… 15 Climate and Natural Disaster ……………………………………………………………………… 16 Eco-Priority & Green Development ………………………………………………………………… 18 Tough Fight for Pollution Prevention and Control ………………………………………………… 18 Ecological environmental protection supervision …………………………………………………… 19 Ecological Environmental Legal Construction ……………………………………………………… 20 Institutional Capacity Building of Ecological Environmental Protection …………………………… 20 Reform of Investment and Financing in Ecological Environmental Protection ……………………… 21 Ecological Environmental Protection Investment …………………………………………………… 21 Technology and Standards of Ecological Environmental Protection ………………………………… 22 Heavy Metal Pollution Control ……………………………………………………………………… 22 Environmental
    [Show full text]
  • Chinese Quality Open Video Courses - Analysis on Problems and Promote Strategies
    Asian Social Science; Vol. 11, No. 25; 2015 ISSN 1911-2017 E-ISSN 1911-2025 Published by Canadian Center of Science and Education Chinese Quality Open Video Courses - Analysis on Problems and Promote Strategies Zhouyao Jiang1,2 1 School of Journalism and Communication, Southwest University, Chongqing, China 2 School of Humanities, Chongqing Jiaotong University, Chongqing, China Correspondence: Zhouyao Jiang, 2-2-1 Building 37, Xuefu Road 70, Nan’an District, Chongqing, China. Tel: 86-159-2284-7921. E-mail: [email protected] Received: April 21, 2015 Accepted: September 29, 2015 Online Published: October 26, 2015 doi:10.5539/ass.v11n25p78 URL: http://dx.doi.org/10.5539/ass.v11n25p78 Abstract Quality open video courses are the Chinese open educational movement which leading by the Chinese Ministry of Education. These open courses have successfully brought high quality of higher educational resource from campus to the public, and extended the meaning of education from school education to life-long learning. This paper analysis the quality open video course on Icourse website from six aspects of curriculum, teaching method, video production, copyright, evaluation system and propaganda tactics. From the analysis, it is find out there are many problems and weakness on each aspects. Suggestions and advises are also discussed in order to improve the quality of open video courses. Keywords: China University, problems, promote strategy, quality open video courses, QOVC In 2001, Massachusetts Institute of Technology in America initiated the open educational resources (OER) movement, which gradually published all its courses online. Soon afterwards, many world famous universities joined in the flood of spreading online open courses freely one after another, including Yale, Harvard, Cambridge and Oxford, etc.
    [Show full text]
  • Sichuan University(SCU) Is a National Key Comprehensive University, Incorporated
    Sichuan University Sichuan University(SCU) is a national key comprehensive university, incorporated from three key universities, namely, the former Sichuan University, Chengdu University of Science and Technology (CUST) and West China University of Medical Science (WCUMS). Sichuan University offers courses in nine major fields of study including humanities, social sciences, natural sciences, engineering and technology, medical sciences,etc. Sichuan University 24,Southen Section1, 1st Ringroad, 610065, Sichuan,Chengdu, P.R. China Tel:+86-28-85402443 FAX:+86-28-85403260 E-mail:[email protected]. cn Contact Us Sitemap FAQ http://www.scu.org.cn/19.09.2003 01:34:23 Sichuan University SichuanUniversity 24,Southen Section1, 1st Ringroad, 610065, Sichuan,Chengdu, P.R. China Tel:+86-28-85402443 FAX:+86-28-85403260 E-mail:[email protected] E-mail:[email protected] http://www.scu.org.cn/CONT.htm19.09.2003 01:34:35 Sichuan University Home Genaral Information History of SCU About SCU A welcome from the President Eximious Schoolfellow Academics Degrees Admission Program Oversea Students Science Technology Medicine Research Literae Humaniores International Cooperation Library Resource Museum Hospital News&Events Map Campus Life Living Service Students' Assn. Foreign Experts Employment Overseas Schoolars http://www.scu.org.cn/sitemap.htm19.09.2003 01:34:52 Sichuan University General Information As one of the national key universities directly under the State Ministry of Education (MOE) as well as one of the State “211 Project” universities enjoying privileged construction in the Ninth Five-Year Plan period, the present Sichuan University (SCU) was first incorporated with Chengdu University of Science and Technology (CUST), another national key university under the MOE in1994, and West China General Information University of Medical Science (WCUMS), a key university directly subordinated to History of SCU the State Ministry of Health in 2000.
    [Show full text]
  • 2Nd Southwest University Global Immersion Program July 6-17, 2020
    SOUTHWEST UNIVERSITY 2nd Southwest University Global Immersion Program July 6-17, 2020 Southwest University Chongqing, P. R. China Dear Partner University: Greetings from Southwest University (SWU), Chongqing, China! We are very excited to announce that, given this year’s great success of piloting the Global Immersion Program (GIP) (Please refer to Attachment 1), SWU will continue to hold it in 2020. For this program, we would like to invite experts and professors from partner universities and other world renowned universities to teach two-week intensive courses on SWU campus. These courses should be in line with one of the undergraduate or graduate programs that SWU provides. They will be credit-bearing and open to all qualified SWU students. Please be noted, the final acceptance of your course application will be determined by each college/school/faculty. Here are the details of the program: 1. Time: Monday, July 6 -- Friday, July 17, 2020. Instructors are expected to arrive as early as Saturday, July 4 and leave as late as Sunday, July 19. 2. The instruction language of all courses is English. 3. Instructors are expected to deliver complete courses, including lectures, assignments, grading, etc., with face-to-face lecture time no less than: 1) For graduate courses: 1 credit (18 class periods×40 minutes/period=12 hours in total); or 2 credits (36 class periods×40 minutes/period=24 hours); 2) For undergraduate courses: 2 credits (36 class periods×40 minutes/period=24 hours). 4. For an introduction to SWU and a complete list of all the undergraduate and graduate programs at SWU, please refer to Attachment 2 or visit: http://gjc.swu.edu.cn/s/gjc/aboutswu.html#images-preview-1 5.
    [Show full text]