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王轶浩, 凯旋, 谢双喜. 重庆铁山坪森林植被调控下的大气PM2.5和PM10特征[J]. 四川林业科技, 2016, 37(6): 54-58. DOI: 10.16779/j.cnki.1003-5508.2016.06.011
引用本文: 王轶浩, 凯旋, 谢双喜. 重庆铁山坪森林植被调控下的大气PM2.5和PM10特征[J]. 四川林业科技, 2016, 37(6): 54-58. DOI: 10.16779/j.cnki.1003-5508.2016.06.011
WANG Yi-hao, KAI Xuan, XIE Shuang-xi. Characteristics of Atmospheric PM2.5 and PM10 Regulated by Forest Vegetation in the Tieshanping Forest Park of Chongqing[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 54-58. DOI: 10.16779/j.cnki.1003-5508.2016.06.011
Citation: WANG Yi-hao, KAI Xuan, XIE Shuang-xi. Characteristics of Atmospheric PM2.5 and PM10 Regulated by Forest Vegetation in the Tieshanping Forest Park of Chongqing[J]. Journal of Sichuan Forestry Science and Technology, 2016, 37(6): 54-58. DOI: 10.16779/j.cnki.1003-5508.2016.06.011

重庆铁山坪森林植被调控下的大气PM2.5和PM10特征

Characteristics of Atmospheric PM2.5 and PM10 Regulated by Forest Vegetation in the Tieshanping Forest Park of Chongqing

  • 摘要: 2014年8月~2015年7月,以重庆铁山坪森林公园主干道路为对照,采用高精度手持式PM2.5速测仪(CW-HAT200)定位监测了不同树种、林分及其结构特征调控下的大气PM2.5和PM10颗粒物浓度特征。结果表明:铁山坪森林公园道路和7个监测树种的大气PM2.5和PM10颗粒物浓度变化均比较大,与公园道路相比,各监测树种均不同程度表现出具有削减大气PM2.5和PM10颗粒物功能,其中以枫香削减大气颗粒物的能力最强,楠竹最弱;不同林分调控下的大气颗粒物浓度表现为针阔混交林 > 阔叶林 > 针叶林;各林分的不同垂直结构调控下的大气PM2.5和PM10颗粒物浓度均表现为乔木层 > 乔灌层 > 乔灌草层,相反,其削减大气颗粒物的能力则均为乔灌草层 > 乔灌层 > 乔木层。可见,具备乔灌草空间结构配置的林分具有更强的调控大气颗粒物能力。

     

    Abstract: From August 2014 to July 2015,taking road monitoring plot in the Tieshanping Forest Park in Chongqing as the contrast,characteristics of atmospheric PM2.5 and PM10 under the regulation of different tree species,forest stands and structural characteristics were monitored by the High Precision Hand Held PM2.5 (CW-HAT200).The results showed that variations of atmospheric PM2.5 and PM10 in the park road and under canopies of seven tree species were larger.Compared with concentrations of atmospheric PM2.5 and PM10 in the park road,each monitored tree species had different degrees of ability to reduce atmospheric particulate matter,and Liquidambar formosana had a stronger ability to reduce atmospheric particulate matter,but the ability of Phyllostachys heterocycla was weaker.The concentration of atmospheric PM2.5 and PM10 under the regulation of different forest stands was in the order of conifer-broadleaf forest > broadleaved forest > coniferous forest.The concentrations of atmospheric PM2.5 and PM10 of different vertical structures from forest stands all were in the order of tree layer > tree and shrub layer > tree,shrub and herb layer.On the contrary,the ability to reduce atmospheric particle matter all was in the order of tree,shrub and herb layer > tree and shrub layer > tree layer.Therefore,forest stand with a complete spatial structure (tree,shrub and herb layer) would have a stronger ability to reduce atmospheric particulate matter.

     

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