Approximately 331 million ha, one-third of China＇s total land, is prone to desertification processes, leading to natural disasters and economic losses. In this study, the situation, tendency, their influences and the...Approximately 331 million ha, one-third of China＇s total land, is prone to desertification processes, leading to natural disasters and economic losses. In this study, the situation, tendency, their influences and their risk governance of desertification and blown sand disaster in China were examined using satellite images, field photographs, field data and a literature review. The desiccated areas in Lop Nor and the lower Heihe River fluvial plain covered about 50,000 km2 and 40,000 km2, respectively. In Ejina, about 100 species of vegetation became extinct. The rate of wind erosion in China was between 1,000 tons/km2/year and 2,000 tons/km2/year. There were 12 sand deserts and sandy lands, occupying a total of 710,000 km2. Salinized soils occurred across 99.1 million ha. The two main sand and dust storm-prone areas in China were the Tarim Basin and its surroundings, and the Alxa Plateau and its surroundings. From 1981 to 2007, the annual average frequency of sand and dust storms varied from 1 d to 37 d with a general increase from southeast to northwest. Since 1978, China has implemented a number of ecological construction projects that have reduced desertification from 1999 to 2004 and from 2005 to 2009, and the number of dust and sand storm days from 9.3 d between 1954 and 1959 to 4.4 d between 2000 and 2007. The results could improve understanding of desertification and blown sand disasters in China and provide valuable experiences for global desertification control.展开更多
Education and training in standardization are the basic guarantee for both the implementation of national strategies of standardization and the construction of a national system of standards. As a typical organization...Education and training in standardization are the basic guarantee for both the implementation of national strategies of standardization and the construction of a national system of standards. As a typical organization representing Chinese universities providing standardization education, China Jiliang University has made remarkable achievements in the educational process. This paper analyzes the current educational status of standardization in China Jiliang University, summarizing the characteristics of its education of standardization and highlighting issues existing in the process of education and training. Based on all of these, related countermeasures and the future development pattern for the education of standardization in China Jiliang University are proposed in the paper, from which the future trends for education of standardization in Chinese universities can be predicted.展开更多
文摘Approximately 331 million ha, one-third of China＇s total land, is prone to desertification processes, leading to natural disasters and economic losses. In this study, the situation, tendency, their influences and their risk governance of desertification and blown sand disaster in China were examined using satellite images, field photographs, field data and a literature review. The desiccated areas in Lop Nor and the lower Heihe River fluvial plain covered about 50,000 km2 and 40,000 km2, respectively. In Ejina, about 100 species of vegetation became extinct. The rate of wind erosion in China was between 1,000 tons/km2/year and 2,000 tons/km2/year. There were 12 sand deserts and sandy lands, occupying a total of 710,000 km2. Salinized soils occurred across 99.1 million ha. The two main sand and dust storm-prone areas in China were the Tarim Basin and its surroundings, and the Alxa Plateau and its surroundings. From 1981 to 2007, the annual average frequency of sand and dust storms varied from 1 d to 37 d with a general increase from southeast to northwest. Since 1978, China has implemented a number of ecological construction projects that have reduced desertification from 1999 to 2004 and from 2005 to 2009, and the number of dust and sand storm days from 9.3 d between 1954 and 1959 to 4.4 d between 2000 and 2007. The results could improve understanding of desertification and blown sand disasters in China and provide valuable experiences for global desertification control.
基金supported by Zhejiang New Century Higher Education Reform Project (No.yb06054): One of the research and practice achivements on construction of "standardized" features high-level specializaed personnel training system, Key Universities Research Institute of Humanities and Social Sciences in Zhejiang Province "Standardaition and Intellectual Property Management"Public Technological Innovative Service Platform of Standard Information and Quality Security on Zhejiang Province
文摘Education and training in standardization are the basic guarantee for both the implementation of national strategies of standardization and the construction of a national system of standards. As a typical organization representing Chinese universities providing standardization education, China Jiliang University has made remarkable achievements in the educational process. This paper analyzes the current educational status of standardization in China Jiliang University, summarizing the characteristics of its education of standardization and highlighting issues existing in the process of education and training. Based on all of these, related countermeasures and the future development pattern for the education of standardization in China Jiliang University are proposed in the paper, from which the future trends for education of standardization in Chinese universities can be predicted.
