LU Shaowei,LIU Xiaona,LIU Bin,et al.Influence of Different Forest Edge and Road Distance on PM10 Concentration[J].Northern Horticulture,2016,40(22):176-180.[doi:10.11937/bfyy.201622044]
不同林缘与道路距离对空气PM10浓度的影响
- Title:
- Influence of Different Forest Edge and Road Distance on PM10 Concentration
- Keywords:
- distance from forest edge; road distance; PM10 ; Beijing
- 文献标志码:
- A
- 摘要:
- 以大气中的PM10为研究对象，采用便携式手持颗粒物浓度监测仪Dustmate对空气PM10质量浓度进行全天连续测定，研究了距不同林缘和道路距离处的PM10浓度的日变化和月变化规律。结果表明：不同林缘距离处的PM10浓度日变化规律呈先减小后增大的变化趋势，6、7、10月最大值出现在07:30，8月和9月最大值出现在05:30，各月最小值出现在13:30或15:30，PM10浓度月变化规律表现为随林缘距离的增加呈先减小后增加的变化趋势，其中，距林缘30 m是PM10浓度的重要转折点；不同道路距离的PM10浓度日变化规律与不同林缘处相同，但峰值出现的时间不同，各月最小值均出现在13:30或15:30，而6、8、9月最大值出现在05:30，7月最大值出现在07:30，10月最大值出现在09:30，PM10浓度月变化规律在距道路0～30 m时急剧下降，大于30 m时下降的趋势变缓，距道路30 m时PM10浓度削减率最大；在距道路和林缘0～30 m处，随着月份的增加，PM10浓度的削减率均表现为先增加后减小的变化趋势。该研究结果可为北京地区应对空气污染提供数据支持。
- Abstract:
- PM10 in the atmosphere was taken as test object，and the mass concentration of the air PM10 was measured continuously by using the portable hand-held particulate matter concentration monitor Dustmate，diurnal variation and monthly variation of the PM10 concentrations from in different forest margins and road distance were researched.The results showed that diurnal variation of PM10 concentration presented that first decreased and then increased in different forest edge distance.In June,July and October the maximum value appeared at 07:30.In August and September the maximum value appeared at 05:30.In different month，the minimum value appeared at 13:30 or 15:30.The monthly variation showed that first decreased and then increase.With the increase of the distance from the forest edge，30 m away from the forest edge was an important turning point in the change of PM10 concentration.The diurnal variation of PM10 concentration in different road was the same as that of different forest margins，but the time of peak value was different.The minimum value appeared at 13:30 or 15:30.In June,August,September，maximum value appears at 05:30.In July，the maximum value appeared at 07:30.In October，the maximum value appeared at 09:30.Monthly variation showed that the sharp decline in the distance from the road 0-30 m and the trend was slower in away from 30 m.Reduction rate of PM10 concentration was maximum in distance from the road 30 m.With the month increased，reduction rate of PM10 concentration showed first increased and then decreased at a distance of road and forest edge 0-30 m.The results of this study could provide data support for the air pollution in Beijing area.
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备注/Memo
第一作者简介：鲁绍伟（1969-)，男，河北秦皇岛人，博士，研究员，现主要从事水土保持与森林服务功能等研究工作。E-mail：hblsw8@163.com.基金项目：国家林业局林业公益性行业科研专项资助项目（20130430101)；科技创新服务能力建设-协同创新中心-林果业生态环境功能提升协同创新中心资助项目（2011协同创新中心)（市级)（PXM2016_014207_ 000038)。