气候变化与大气污染是当今全球面临的两大关键环境挑战,构建高精度排放清单是应对这些挑战的科学基础.基于Web of Science数据库,综合运用科学知识图谱和文本挖掘技术,系统解析了全球排放清单研究领域的主题分布、机构格局及合作网络特...气候变化与大气污染是当今全球面临的两大关键环境挑战,构建高精度排放清单是应对这些挑战的科学基础.基于Web of Science数据库,综合运用科学知识图谱和文本挖掘技术,系统解析了全球排放清单研究领域的主题分布、机构格局及合作网络特征.研究发现,该领域发文量在过去数10a间呈现显著增长态势,并表现出约10a周期的跃升特征.研究主题涵盖交通运输排放、颗粒物污染、气候变化减缓等26个主题,涉及行业部门、排放物种、模型方法以及特定过程和影响分析.中国、美国、法国、德国等国的研究机构在领域发展中发挥引领作用,形成了差异化、多元化的研究格局,并构建了具有显著地理集聚效应的国际合作网络.分析揭示,研究主题间存在紧密关联,其中颗粒物污染、空气质量模型、挥发性有机化合物等主题在促进不同排放清单间的知识融合方面已显现出重要作用.未来研究的重点应聚焦于:构建统一的排放清单分类体系、优化排放清单校验方法、推动排放数据公开透明化、以及深化跨国协作与信息共享机制,以期协同推进大气污染物和温室气体排放清单的科学基础与应用效能.展开更多
Innovation in forestry education is needed to address changing contexts of the positionality of forests.This is particularly signifi cant in the Asia–Pacifi c region,where deforestation and degradation are high.Howev...Innovation in forestry education is needed to address changing contexts of the positionality of forests.This is particularly signifi cant in the Asia–Pacifi c region,where deforestation and degradation are high.However,the accessibility of high-quality forestry education to address changing regional and global contexts is lacking.A series of innovative sustainable forest management(SFM)open education resource(OER)courses were developed and implemented to improve the accessibility of SFM education to enhance teaching quality,curriculum,and research capacity of universities in the Asia-Pacifi c Region.To evaluate the SFM-OER program in terms of student experiences,this study investigated student achievement,perceived success of the pedagogical approach and instructional design,and perceived eff ectiveness of the learning activities in promoting active and transformative learning through the assessment of a 1,191-course feedback survey between 2018 and 2020,including the global pandemic.This study revealed that the program attracted diverse student demographics,including a higher proportion of female students majoring in forestry,ecology,and other environmental studies.Their primary motivation to participate in the courses was to gain international experience,followed by the fl exibility of online learning,mandatory course requirements,and earning course credits.Students were satisfi ed with the Canvas learning management system.Most students spent less than 5 to 10 h of their weekly time in the course and agreed or strongly agreed that the workloads were manageable.Students refl ected positively on various learning activities and assignments,such as watching lecture videos,taking quizzes,reading and summarizing,having discussions,and peer review writing.However,they did not clearly prefer specifi c learning activities,signifying the importance of using diverse learning activities to satisfy diverse individual learning styles in online settings.This analysis contributes to the further development of student-centered pedagogical development for online learning and provides insight into the ways forward for online higher forestry education,while repurposing existing OER courses in a post-Covid-19 era.展开更多
文摘气候变化与大气污染是当今全球面临的两大关键环境挑战,构建高精度排放清单是应对这些挑战的科学基础.基于Web of Science数据库,综合运用科学知识图谱和文本挖掘技术,系统解析了全球排放清单研究领域的主题分布、机构格局及合作网络特征.研究发现,该领域发文量在过去数10a间呈现显著增长态势,并表现出约10a周期的跃升特征.研究主题涵盖交通运输排放、颗粒物污染、气候变化减缓等26个主题,涉及行业部门、排放物种、模型方法以及特定过程和影响分析.中国、美国、法国、德国等国的研究机构在领域发展中发挥引领作用,形成了差异化、多元化的研究格局,并构建了具有显著地理集聚效应的国际合作网络.分析揭示,研究主题间存在紧密关联,其中颗粒物污染、空气质量模型、挥发性有机化合物等主题在促进不同排放清单间的知识融合方面已显现出重要作用.未来研究的重点应聚焦于:构建统一的排放清单分类体系、优化排放清单校验方法、推动排放数据公开透明化、以及深化跨国协作与信息共享机制,以期协同推进大气污染物和温室气体排放清单的科学基础与应用效能.
基金Asia-Pacifi c Network for Sustainable Forest Management and Rehabilitation SFM-ORE-2018。
文摘Innovation in forestry education is needed to address changing contexts of the positionality of forests.This is particularly signifi cant in the Asia–Pacifi c region,where deforestation and degradation are high.However,the accessibility of high-quality forestry education to address changing regional and global contexts is lacking.A series of innovative sustainable forest management(SFM)open education resource(OER)courses were developed and implemented to improve the accessibility of SFM education to enhance teaching quality,curriculum,and research capacity of universities in the Asia-Pacifi c Region.To evaluate the SFM-OER program in terms of student experiences,this study investigated student achievement,perceived success of the pedagogical approach and instructional design,and perceived eff ectiveness of the learning activities in promoting active and transformative learning through the assessment of a 1,191-course feedback survey between 2018 and 2020,including the global pandemic.This study revealed that the program attracted diverse student demographics,including a higher proportion of female students majoring in forestry,ecology,and other environmental studies.Their primary motivation to participate in the courses was to gain international experience,followed by the fl exibility of online learning,mandatory course requirements,and earning course credits.Students were satisfi ed with the Canvas learning management system.Most students spent less than 5 to 10 h of their weekly time in the course and agreed or strongly agreed that the workloads were manageable.Students refl ected positively on various learning activities and assignments,such as watching lecture videos,taking quizzes,reading and summarizing,having discussions,and peer review writing.However,they did not clearly prefer specifi c learning activities,signifying the importance of using diverse learning activities to satisfy diverse individual learning styles in online settings.This analysis contributes to the further development of student-centered pedagogical development for online learning and provides insight into the ways forward for online higher forestry education,while repurposing existing OER courses in a post-Covid-19 era.
