Microorganisms and its metabolic types are diverse in Xinjiang because of those extreme/special environments of drought, high or low temperature, saline and alkaline, oligotrophy. This article reviewed the research pr...Microorganisms and its metabolic types are diverse in Xinjiang because of those extreme/special environments of drought, high or low temperature, saline and alkaline, oligotrophy. This article reviewed the research progress and achievements of various microbial resources (bacteria, fungi and actinomycete) in the special environments from the point of its ecology, development and application. Meanwhile, the development trend, protection and sustainable utilization of the microorganism resources were discussed.展开更多
Urban development in China has recently encountered various problems,and many of these problems have been caused by uneven distribution of public facilities in different districts,so it is signifi cant to choose reaso...Urban development in China has recently encountered various problems,and many of these problems have been caused by uneven distribution of public facilities in different districts,so it is signifi cant to choose reasonable locations for urban public facilities. Current researches on location of urban public facilities in China cover various aspects,involve different units,show diverse features,and make outstanding contributions. However,these researches have also obvious limitations. The future study on public facilities' location will focus on specifi c application of the model in different cities,or better consider characteristics of the city.展开更多
文章基于Web of Science核心数据库,利用CiteSpace 6.2.R2可视化软件,对与众包物流主题相关的129篇相关文献进行可视化科学计量分析,获得相关文献的发文量、作者图谱、机构图谱、国家图谱及关键词图谱,以探讨该领域的研究热点以及未来...文章基于Web of Science核心数据库,利用CiteSpace 6.2.R2可视化软件,对与众包物流主题相关的129篇相关文献进行可视化科学计量分析,获得相关文献的发文量、作者图谱、机构图谱、国家图谱及关键词图谱,以探讨该领域的研究热点以及未来发展趋势。研究结果表明,目前众包物流发文数量总体呈现出曲折上升的态势;作者以及机构的发文量相差不大且相对较少;最后一公里交付、车辆路线规划、众包运输定价策略以及算法优化等将是众包物流领域未来研究热点。展开更多
以Web of Science(WOS)和中国知网(CNKI)数据库中检索到的2011—2022年生态与生计研究的2062篇文献为数据源,运用文献计量分析软件CiteSpace对文献数据进行共现、热点、聚类和突现等分析,定性定量地阐明国内外生态—生计的研究进展、研...以Web of Science(WOS)和中国知网(CNKI)数据库中检索到的2011—2022年生态与生计研究的2062篇文献为数据源,运用文献计量分析软件CiteSpace对文献数据进行共现、热点、聚类和突现等分析,定性定量地阐明国内外生态—生计的研究进展、研究热点和发展趋势。结果表明,国内外生态—生计研究的发文量从缓慢增长到快速增长,但近两年呈下降趋势;国际研究主要集中在地理科学、可持续性科学和生态学领域,呈现多学科交叉、研究方向多元化和精细化的研究趋势,研究热点主要关注生物多样性保护、政治生态、生态保护、生计、影响与冲击等;国内研究主要集中在生态学与地理科学领域,研究热点主要集中在生计和政策绩效评估方面,研究以国家政策为导向,缺乏创新性,与国际相比在生物多样性保护、生态系统服务与生计的关系方面关注度不足。对国内该领域未来研究提出建议,以促进生态、社会与经济协调可持续发展。展开更多
基金supported by the National Natural Science Foundation of Xinjiang (200821161)the Key Knowledge Innovation Project of Chinese Academy of Sciences (KZCX2-YW-336-2)the National Support Plan of China (2007BAC15B06)
文摘Microorganisms and its metabolic types are diverse in Xinjiang because of those extreme/special environments of drought, high or low temperature, saline and alkaline, oligotrophy. This article reviewed the research progress and achievements of various microbial resources (bacteria, fungi and actinomycete) in the special environments from the point of its ecology, development and application. Meanwhile, the development trend, protection and sustainable utilization of the microorganism resources were discussed.
文摘Urban development in China has recently encountered various problems,and many of these problems have been caused by uneven distribution of public facilities in different districts,so it is signifi cant to choose reasonable locations for urban public facilities. Current researches on location of urban public facilities in China cover various aspects,involve different units,show diverse features,and make outstanding contributions. However,these researches have also obvious limitations. The future study on public facilities' location will focus on specifi c application of the model in different cities,or better consider characteristics of the city.
文摘文章基于Web of Science核心数据库,利用CiteSpace 6.2.R2可视化软件,对与众包物流主题相关的129篇相关文献进行可视化科学计量分析,获得相关文献的发文量、作者图谱、机构图谱、国家图谱及关键词图谱,以探讨该领域的研究热点以及未来发展趋势。研究结果表明,目前众包物流发文数量总体呈现出曲折上升的态势;作者以及机构的发文量相差不大且相对较少;最后一公里交付、车辆路线规划、众包运输定价策略以及算法优化等将是众包物流领域未来研究热点。
文摘以Web of Science(WOS)和中国知网(CNKI)数据库中检索到的2011—2022年生态与生计研究的2062篇文献为数据源,运用文献计量分析软件CiteSpace对文献数据进行共现、热点、聚类和突现等分析,定性定量地阐明国内外生态—生计的研究进展、研究热点和发展趋势。结果表明,国内外生态—生计研究的发文量从缓慢增长到快速增长,但近两年呈下降趋势;国际研究主要集中在地理科学、可持续性科学和生态学领域,呈现多学科交叉、研究方向多元化和精细化的研究趋势,研究热点主要关注生物多样性保护、政治生态、生态保护、生计、影响与冲击等;国内研究主要集中在生态学与地理科学领域,研究热点主要集中在生计和政策绩效评估方面,研究以国家政策为导向,缺乏创新性,与国际相比在生物多样性保护、生态系统服务与生计的关系方面关注度不足。对国内该领域未来研究提出建议,以促进生态、社会与经济协调可持续发展。