首都功能核心区城市森林公园冷岛效应评价  

Evaluation of Cold Island Effect in Urban Forest Park in Core Area of Capital

作　　者：赵松婷 李新宇 刘秀萍 许蕊 ZHAO Song-ting;LI Xin-yu;LIU Xiu-ping;XU Rui(Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space/Beijing Urban Ecosystem Positioning Observation and Research Station/Beijing Academy of Forestry and Landscape Architecture,Beijing 100102,China)

机构地区：[1]北京市园林绿化科学研究院/园林绿地生态功能评价与调控技术北京市重点实验室/北京城市生态系统定位监测研究站,北京100102

出　　处：《科学技术与工程》2023年第2期857-862,共6页Science Technology and Engineering

基　　金：北京市科技重大项目(D171100007117001);北京市科技计划(Z181100009818023);北京市公园管理中心园林科技新星专项(ylkjxx2019006);北京市公园管理中心科技课题(zx2020020)。

摘　　要：为了研究首都功能核心区新建小型城市森林公园缓解城市热岛效应的能力,以广阳谷城市森林公园为研究对象,基于遥感(remote sensing,RS)和地理信息系统(geographic information system,GIS)完成了2014年、2017年和2019年公园内及周边区域的地表温度反演,同时结合长期定点监测公园内外空气温湿度,分析城市森林公园内及周边冷岛效应。结果发现:广阳谷城市森林公园建成后,在园外100 m范围内有一定的降温效果。相比建成前,2017年和2019年其100 m缓冲区内热岛区域占比分别减少了4.83%和1.38%,地表平均温度比核心区分别降低了0.72℃和1.15℃,说明公园建成以来,充分发挥了冷岛作用;公园内各测点在10:00—17:00的平均温度低于对照点1.65℃,公园内部的相对湿度比对照点高2.68%;3—8月公园内各点的平均温度比对照点低0.67℃,在3月、4月、6月和7月公园内各点的平均湿度比对照点高1.82%,说明森林公园在此段时间发挥着降温增湿的作用。In order to study the ability of the new urban forest park to alleviate the urban heat island effect in the capital core area,Guangyanggu Urban Forest Park in Xicheng District,Beijing was taken as the research object,the surface temperature retrievals of that and its surrounding areas in 2014,2017 and 2019 were completed based on remote sensing(RS)and geographic information system(GIS),in the meantime,temperature and humidity were measured by using temperature and humidity recorder.The results show that the park play a certain role in reducing the surrounding temperature within 100 meters.In 2017 and 2019,the proportion of heat island area in the 100 meters buffer zone is reduced by 4.83%and 1.38%respectively,and the mean surface temperature is reduced by 0.72℃and 1.15℃respectively compared with the core zone.Furthermore,from 10:00 to 17:00 the temperature of each measuring point in the park is lower than the control point,which is 1.65℃lower on average.The average relative humidity in the park is 2.68%higher than the control point.From March to August,the temperature of each point in the park is lower than that of the control point,which is 0.67℃lower on average.In March,April,June and July,the humidity at each point in the park is higher than that at the control point,with an average of 1.82%.It shows that the forest park plays a role of cooling and humidifying during this period.

关 键 词：城市森林公园 降温增湿 热岛效应 冷岛效应 

分 类 号：X16[环境科学与工程—环境科学]