摘要
为探究ENVI-met乔木建模的简化方式,确定实测中不便获取的建模参数能否采用软件默认值替代,本文以广州市居住区常用树种细叶榕Ficus microcarpa为例,通过正交试验探究影响微气候模拟结果的主要建模参数,并初步建立了细叶榕的建模参数库。正交试验结果表明,在细叶榕模型中,叶片反射率是树下空气温湿度模拟结果的显著影响因素,叶面积指数是树下太阳辐射和地表温度模拟结果的显著影响因素,应采用实测值以保证模拟结果的准确性;根深和根幅对以上四种微气候指标的模拟结果影响均不显著,在测量条件不具备时可采用软件默认值或建议值。针对以上四种建模参数,本文建立了细叶榕建模参数库,为设计师提供简便可行的数据参考。
The aim of this study is to investigate the simplification method for building tree models in ENVI-met and make sure whether the default value of modeling can be used.The common tree species in residential areas in Guangzhou,Ficus microcarpa,was taken as an example to investigate the main influence factor of microclimate simulation result through orthogonal test,therefore establishing a database for modeling.The result of orthogonal test shows that,for the modeling of Ficus microcarpa,albedo of leaf is the major influence factor of air temperature and humidity,and leaf area index is the main influence factor of solar radiation and surface temperature under the tree.The depth and breadth of root have no prominent influence on these four microclimate factors.Therefore,the value of albedo and leaf area index should be from observation to ensure the accuracy of simulation result.The default value of the depth and breadth of root can be used when they are unavailable.For these four modeling parameters,the database of Ficus microcarpa had been preliminarily established.
作者
刘之欣
谭广文
赵立华
LIU Zhi-xin;TAN Guang-wen;ZHAO Li-hua(Building Energy Efficiency Laboratory, Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China;Pubang Landscape Architecture Company Limited,Guangzhou 510600, China)
出处
《广东园林》
2018年第1期83-87,共5页
Guangdong Landscape Architecture
基金
广州市越秀区科技项目(编号2016-GX-013)
亚热带建筑科学国家重点实验室自主研究课题(编号2017KB10)共同资助
