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Tobit Curteis 《文物保护研究》2018,63(5):70-75
ABSTRACTEnglish medieval cathedrals are a group of buildings of exceptional significance and they contain collections of equal importance. Both the historic building fabric and the artefacts are vulnerable to environmental deterioration. However, unlike buildings owned by heritage organisations, the primary purpose of cathedrals is to further the Christian mission, and the conservation of the building and collections is required to be conducted within these constraints. Increasing visitor numbers and the installation of sophisticated exhibitions makes the task of conservation all the more demanding. Next to mechanical damage, environmental factors are the greatest source of deterioration to sensitive fabric and collections. However, until recently, there has been little systematic study of English cathedral environments and the effects of different uses and control measures. Detailed studies undertaken on 20 cathedrals in the past two decades have provided an insight into their environmental performance and how they differ as a group from many other historic buildings, as well as the passive conservation measures that can be implemented within their primary function. 相似文献
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高密度街区的微气候对居民的体力活动、空气污染暴露甚至健康都具有一定的影响。以南京莱迪广场为例,采用CFD软件模拟并分析了南京莱迪广场夏季热环境、风环境状况。结合广场夏季微气候状况,从广场与周边建筑、活动设施位置、植物种植设计、铺装设计、水景设置五个方面提出优化城市广场风热环境的设计策略,期望为城市设计师在广场设计方面提供理论基础以创造更舒适的城市户外空间。 相似文献
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根据测定结果,茂名市绿化环境效应有:小气候效应——降温0.3～1.3℃,增加相对湿度 3～19％,遮荫10304.9～31758.81ux;负离子效应——绿地中负离子浓度是 0.60×10~2～5.15×10~2个/cm~3;消声效应——净消减噪音量为0.3～6.3dB(A)。为了提高绿化环境效应,绿化覆盖率须达35％以上,应是多层次乔灌草结合、阔叶针叶搭配的复合绿化结构。 相似文献
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同晓正 《杨凌职业技术学院学报》2011,10(2):1-4,10
水分是制约黄土高原丘陵区植被恢复与重建的主要限制性因子。本研究通过选择陕北黄土高原丘陵区鱼鳞坑、水平沟和天然封育3种不同措施,研究近地表的气温、空气湿度、风速以及地温等小气候特征,揭示不同水保措施下近地表小气候的变化规律。经试验结果综合对比,3种水保措施改善小气候能力的强弱为：水平沟〉鱼鳞坑〉封育草地。 相似文献
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《文物保护研究》2013,58(2):65-79
AbstractEnvironmental standards for cultural heritage collections have been much debated in recent years. The interest in the issue has been driven by the growing movement towards green museums, that is, managing indoor museum environments in a responsible and efficient manner, especially in terms of reducing energy consumption and carbon emissions but at the same time maintaining high standards of collection care. Painted wood is among the category of heritage objects most vulnerable to relative humidity and temperature fluctuations. Therefore, scientific understanding of how changes in environmental conditions ultimately affect painted wood is crucial to the development of rational guidelines for the control of climate in museums and historic buildings. This review provides a systematic progression through two fundamental approaches to establish the allowable ranges of climatic variations – an analysis of the mechanical response of painted wood as a complex, multilayer system to climate variations, and an analysis of the historic climate to which the objects have acclimatized. The climate specifications and standards based on both these approaches are reviewed. 相似文献
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董晓文 《咸阳师范学院学报》2006,21(6):48-51
采用模糊数学方法,依据咸阳区域小气候样本之间的属性特征的亲疏关系,进行聚类分析,由此划分出小气候的相似区域,它可为咸阳市的农业生产结构调整提供一个依据。 相似文献
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