摘要
于2015年夏季对深圳园山山麓(Foothill)、河谷(River Valley)和山脊(Ridge)等3种典型生境城市森林内的臭氧浓度和气象因子进行昼夜24h同步监测,研究林内臭氧浓度的变化规律及影响因素.结果表明:深圳园山3种生境城市森林内臭氧浓度的小时均值和日最大8h均值都达到了国家一级标准(分别为160,100μg/m^3);3个林地的臭氧浓度日均值都高于对照,且Ridge显著高于River Valley和Foothill;林内臭氧浓度的日变化都呈单峰曲线,表现为白天高,夜间低,在15:00~17:00达到最高,在5:00~7:00降到最低;3种林地的臭氧浓度都与温度极显著正相关,与湿度极显著负相关,此外Ridge的臭氧浓度还与风速极显著正相关.总之,深圳园山3种林分内的臭氧浓度符合人们进行森林游憩活动的空气质量要求,基于臭氧浓度,人们在5:00~7:00进行森林游憩最为适宜.
The ozone concentration of3typical urban forests growing at foothill,river valley and ridge of Yuanshan Parkin Shenzhen were observed for24hours in the summer of2015.At the same time,the meteorological factors were alsoobserved as influencing factors.Our results showed that:The mean value of hourly and8h maximum ozone concentrationin3forests were all achieved the primary standard of national air quality standards(160and100μg/m3,respectively).Thedaily average ozone concentration in3forests were all higher than the control with the highest value observed at the ridge.The daily variation of ozone concentration in3forests all exhibited a single peak curve,with the highest concentrationoccurring in15:00~17:00pm,whereas the lowest occurring in5:00~7:00am.The ozone concentration in each forest waspositively related with the temperature and negatively with the relative humidity.Moreover,a positive correlation wasnoted between the ozone concentration and the wind velocity at the ridge.In conclusion,the air quality in3urban forestsof Yuanshan Park in Shenzhen is consistent with the air quality requirements of forest recreation activities,and the propertime according to the status of ozone is from5:00to7:00am in summer.
作者
段文军
王成
张昶
宋阳
郝泽周
徐心慧
金一博
王子研
WANG Cheng;DUAN Wen-jun;ZHANG Chang;SONG Yang;HAO Ze-zhou;XU Xin-hui;JIN Yi-bo;WANG Zi-yan(Research Institute of Forestry of Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding;Research Center of Urban Forest, State Forestry Administration Beijing 100091, China)
出处
《中国环境科学》
EI
CAS
CSSCI
CSCD
北大核心
2017年第6期2064-2071,共8页
China Environmental Science
基金
国家科技支撑计划(2015BAD07B06)
林业公益性行业科研专项经费项目(201404301)
关键词
深圳
城市森林
生境
臭氧
气象因子
Shenzhen
urban forest
habitat
ozone
meteorological factors
