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马克明,殷哲,张育新.绿地滞尘效应和机理评估进展.生态学报,2018,38(12):4482~4491 本文二维码信息
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绿地滞尘效应和机理评估进展
Advancement in the method and mechanism of the green space dust retention effect
投稿时间:2018-01-01  修订日期:2018-04-28
DOI: 10.5846/stxb201801010001
关键词城市绿地  颗粒物  干沉降  滞尘  模型
Key Wordsurban green space  particles  dry deposition  dust retention  model
基金项目国家重点研发计划课题(2016YFC0503003);国家自然科学基金重点项目(40430638)
作者单位E-mail
马克明 中国科学院生态环境研究中心 城市与区域生态国家重点实验室, 北京 100085 mkm@rcees.ac.cn 
殷哲 中国科学院生态环境研究中心 城市与区域生态国家重点实验室, 北京 100085
中国科学院大学, 北京 100049 
 
张育新 中国科学院生态环境研究中心 城市与区域生态国家重点实验室, 北京 100085  
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摘要:
绿地滞尘是指大气颗粒物在植物表面的干沉降过程,植物个体特征、绿地结构及环境因素均会对绿地滞尘效应产生影响,模型模拟、实地监测和风洞试验是评估绿地滞尘效应的3种主要方法。现有研究基本上是采用上述方法,从绿地滞尘量或绿地对大气质量的改善作用两方面对城市绿地滞尘效应进行评估,然而评估方法相对单一,影响因素纷繁复杂,评估结果难有定论。为了避免评估方法的滥用和误用,加深对机理的理解,使绿地滞尘研究更好的服务于城市绿地建设,对绿地滞尘效应评估的研究状况进行梳理至关重要。通过仔细分析相关研究的原理及方法发现,绿地滞尘研究多集中在较大尺度上对绿地滞尘量的评估,研究方法虽然一直在更新,且不同方法相互结合已成为趋势,但仍然缺乏大的革新,难以取得较大突破;未来,应加强中小尺度绿地滞尘的研究,深入探讨绿地滞尘机理,在研究方法上寻求创新与突破。
Abstract:
Green space dust retention refers to the dry deposition processes of airborne particulate matter on the surfaces of plants. Individual plant characteristics, green space structure, and the environment will all affect the dust retention. Model simulation, field monitoring, and wind tunnel testing are the primary methods of evaluating the dust retention capacity. Existing studies adopted the above approaches, which have evaluated dust retention based on the improvement of air quality or the total amount of dust accumulated in green space. However, the evaluation measures are relatively simple and the impact factors are complex, therefore, it is difficult to come to a general conclusion. It is essential to review dust retention evaluation studies to prevent misuse and deepen our understanding on the mechanism underlying it. This will provide a much better service for urban green space construction. After analyzing the theory and method of the green space dust retention in recent studies, this work found that dust retention research has mainly focused on assessing the capability of absorbing dust on a large scale. Although research methods have been constantly updated and combining different methods has become a trend, this area still lacks innovation, and it is difficult to make a significant breakthrough in research. In the future, studies should focus on small and medium-sized green spaces, the dust retention mechanism exploration, and method innovation.
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