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应县木塔建筑设计分析(一) 被引量:3
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作者 张毅捷 李寅 韩效 《华中建筑》 2018年第8期98-100,共3页
在之前的研究中作者发现应县木塔的实测尺寸中存在着三级的模数系统。这些模数不仅包含了前人的发现,它们之间也存在着理想的数学关系。但是其中二级平面模数NP和三级模数a不能折算成辽尺的整数尺寸值。这与张十庆在该塔中发现的"... 在之前的研究中作者发现应县木塔的实测尺寸中存在着三级的模数系统。这些模数不仅包含了前人的发现,它们之间也存在着理想的数学关系。但是其中二级平面模数NP和三级模数a不能折算成辽尺的整数尺寸值。这与张十庆在该塔中发现的"整数尺控制"现象相矛盾,同时也会影响到下料和施工等工作——直接影响了前述模数系统的研究结论的合理性。在研究中作者发现日本有一种传统的木工工具曲尺可以很方便地进行以为比例的长度折算,因此推测在应县木塔中也曾有过类似的工具,并对这一工具的基本特征进行了推测。 展开更多
关键词 应县木塔 整数 辽尺 传统建筑设计 木工工具
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Combining CLUE-S and SWAT Models to Forecast Land Use Change and Non-point Source Pollution Impact at a Watershed Scale in Liaoning Province, China 被引量:15
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作者 LIU Miao LI Chunlin +3 位作者 HU Yuanman SUN Fengyun XU Yanyan CHEN Tan 《Chinese Geographical Science》 SCIE CSCD 2014年第5期540-550,共11页
Non-point source(NPS) pollution has become a major source of water pollution. A combination of models would provide the necessary direction and approaches designed to control NPS pollution through land use planning. I... Non-point source(NPS) pollution has become a major source of water pollution. A combination of models would provide the necessary direction and approaches designed to control NPS pollution through land use planning. In this study, NPS pollution load was simulated in urban planning, historic trends and ecological protection land use scenarios based on the Conversion of Land Use and its Effect at Small regional extent(CLUE-S) and Soil and Water Assessment Tool(SWAT) models applied to Hunhe-Taizi River Watershed, Liaoning Province, China. Total nitrogen(TN) and total phosphorus(TP) were chosen as NPS pollution indices. The results of models validation showed that CLUE-S and SWAT models were suitable in the study area. NPS pollution mainly came from dry farmland, paddy, rural and urban areas. The spatial distribution of TN and TP exhibited the same trend in 57 sub-catchments. The TN and TP had the highest NPS pollution load in the western and central plains, which concentrated the urban area and farm land. The NPS pollution load would increase in the urban planning and historic trends scenarios, and would be even higher in the urban planning scenario. However, the NPS pollution load decreased in the ecological protection scenario. The differences observed in the three scenarios indicated that land use had a degree of impact on NPS pollution, which showed that scientific and ecologically sound construction could effectively reduce the NPS pollution load in a watershed. This study provides a scientific method for conducting NPS pollution research at the watershed scale, a scientific basis for non-point source pollution control, and a reference for related policy making. 展开更多
关键词 Conversion of Land Use and its Effect at Small regional extent (CLUE-S) Hunhe-Taizi River Watershed non-point source pollution Soil and Water Assessment Tool (SWAT)
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