在全球化与地方区域快速发展的状态下,许多城市皆面临着其所带来的影响,如空间的虚化、地方文化的同质化、生活文化的消逝与社交网络的削弱等。造成区域内部关系受到影响,日常生活节奏中断,进而使地方失去个性,空间失去意义,整体缺少建...在全球化与地方区域快速发展的状态下,许多城市皆面临着其所带来的影响,如空间的虚化、地方文化的同质化、生活文化的消逝与社交网络的削弱等。造成区域内部关系受到影响,日常生活节奏中断,进而使地方失去个性,空间失去意义,整体缺少建立社区自我认同所需之基础。因此,文化生活循环（cultural life circuit）的存在与保存即变得重要,强调区域生活文化的建立是由不同人（group）于空间（space）中,于不同的时间段落（timeline）所支持与实践的连串行为（behaviour）所组成,并建构出一个必须由此组合才可形塑的特有循环（loop）与节奏（rhythm）,使居民（使用者）可以感受到熟悉感、认同感与信任感,进一步将这些行为与空间编织入他们的日常生活,最后共同构成一个稳定运行之系统。本文旨在探讨文化生活循环之理论基础与特性,剖析其如何支持社区日常生活的进行,进而对促进内部生活文化以及多样因子的互动、建构与保存产生影响。展开更多
Knowledge of the changes in a material’s function, form, and location during the transfer and transformation of materials to generate human services will improve our understanding of how humanity interacts with the e...Knowledge of the changes in a material’s function, form, and location during the transfer and transformation of materials to generate human services will improve our understanding of how humanity interacts with the environment and of how services are formed by human activities. We compared lead’s anthropogenic and biogeochemical cycles and found that the services, pathways, and changes in form requiring the most attention. We traced lead through its life cycle and identified the changes in its functions, forms, and locations by examining technology and engineering information. Lead ore and scrap were the two main anthropogenic sources of lead. When lead provides human services, its main functions included the storage and delivery of electricity, anti-corrosion treatments, and radiation protection; the main forms of lead in these products were Pb, PbO2 and PbSO4, and the main location changed from lithosphere in central China to regions in eastern China.展开更多
The potential influences of cadmium (Cd) on the biochemical processes of the soil nitrogen (N) cycle, along with the dynamics of ammonification, nitrification, and denitrification processes in the rhizosphere and non-...The potential influences of cadmium (Cd) on the biochemical processes of the soil nitrogen (N) cycle, along with the dynamics of ammonification, nitrification, and denitrification processes in the rhizosphere and non-rhizosphere (bulk soil), respectively, were investigated in a Cd-stressed system during an entire soybean growing season. In terms of Cd pollution at the seedling stage, the ammonifying bacteria proved to be the most sensitive microorganisms, whereas the effects of Cd on denitrification were not obvious. Following the growth of soybeans, the influences of Cd on ammonification in the bulk soil were: toxic impacts at the seedling stage, stimulatory effects during the early flowering stage, and adaptation to the pollutant during the podding and ripening stages. Although nitrification and denitrification in the bulk soil decreased throughout the entire growth cycle, positive adaptation to Cd stress was observed during the ripening stage. Moreover, during the ripening stage, denitrification in the bulk soil under high Cd treatment (20 mg kg-1) was even higher than that in the control, indicating a probable change in the ecology of the denitrifying microbes in the Cd-stressed system. Changes in the activity of microbes in the rhizosphere following plant growth were similar to those in the non-rhizosphere in Cd treatments; however, the tendency of change in the rhizosphere seemed to be more moderate. This suggested that there was some mitigation of Cd stress in the rhizosphere.展开更多
文摘在全球化与地方区域快速发展的状态下,许多城市皆面临着其所带来的影响,如空间的虚化、地方文化的同质化、生活文化的消逝与社交网络的削弱等。造成区域内部关系受到影响,日常生活节奏中断,进而使地方失去个性,空间失去意义,整体缺少建立社区自我认同所需之基础。因此,文化生活循环（cultural life circuit）的存在与保存即变得重要,强调区域生活文化的建立是由不同人（group）于空间（space）中,于不同的时间段落（timeline）所支持与实践的连串行为（behaviour）所组成,并建构出一个必须由此组合才可形塑的特有循环（loop）与节奏（rhythm）,使居民（使用者）可以感受到熟悉感、认同感与信任感,进一步将这些行为与空间编织入他们的日常生活,最后共同构成一个稳定运行之系统。本文旨在探讨文化生活循环之理论基础与特性,剖析其如何支持社区日常生活的进行,进而对促进内部生活文化以及多样因子的互动、建构与保存产生影响。
基金Project(41171361)supported by the National Natural Science Foundation of China(General Program)
文摘Knowledge of the changes in a material’s function, form, and location during the transfer and transformation of materials to generate human services will improve our understanding of how humanity interacts with the environment and of how services are formed by human activities. We compared lead’s anthropogenic and biogeochemical cycles and found that the services, pathways, and changes in form requiring the most attention. We traced lead through its life cycle and identified the changes in its functions, forms, and locations by examining technology and engineering information. Lead ore and scrap were the two main anthropogenic sources of lead. When lead provides human services, its main functions included the storage and delivery of electricity, anti-corrosion treatments, and radiation protection; the main forms of lead in these products were Pb, PbO2 and PbSO4, and the main location changed from lithosphere in central China to regions in eastern China.
基金Project supported by the National Natural Science Foundation of China (No. 2977020)the National Key Basic Research Program (973 Program) of China (No. 2002CB410807)
文摘The potential influences of cadmium (Cd) on the biochemical processes of the soil nitrogen (N) cycle, along with the dynamics of ammonification, nitrification, and denitrification processes in the rhizosphere and non-rhizosphere (bulk soil), respectively, were investigated in a Cd-stressed system during an entire soybean growing season. In terms of Cd pollution at the seedling stage, the ammonifying bacteria proved to be the most sensitive microorganisms, whereas the effects of Cd on denitrification were not obvious. Following the growth of soybeans, the influences of Cd on ammonification in the bulk soil were: toxic impacts at the seedling stage, stimulatory effects during the early flowering stage, and adaptation to the pollutant during the podding and ripening stages. Although nitrification and denitrification in the bulk soil decreased throughout the entire growth cycle, positive adaptation to Cd stress was observed during the ripening stage. Moreover, during the ripening stage, denitrification in the bulk soil under high Cd treatment (20 mg kg-1) was even higher than that in the control, indicating a probable change in the ecology of the denitrifying microbes in the Cd-stressed system. Changes in the activity of microbes in the rhizosphere following plant growth were similar to those in the non-rhizosphere in Cd treatments; however, the tendency of change in the rhizosphere seemed to be more moderate. This suggested that there was some mitigation of Cd stress in the rhizosphere.
