高级检索+
张天然, 丁高峰, 楼一蕾, 黄芳, 李晓璐, 袁楚阳, 于慧, 晏海, 邵锋. 不同植物群落内PM2.5 及重金属元素滞纳季相特征[J]. 浙江林业科技, 2021, 41(4): 32-38. DOI: 10.3969/j.issn.1001-3776.2021.04.005
引用本文: 张天然, 丁高峰, 楼一蕾, 黄芳, 李晓璐, 袁楚阳, 于慧, 晏海, 邵锋. 不同植物群落内PM2.5 及重金属元素滞纳季相特征[J]. 浙江林业科技, 2021, 41(4): 32-38. DOI: 10.3969/j.issn.1001-3776.2021.04.005
ZHANG Tian-ran, DING Gao-feng, LOU Yi-lei, HUANG Fang, LI Xiao-lu, YUAN Chu-yang, YU Hui, YAN Hai, SHAO Feng. Mass Concentration of PM2.5 and Heavy Metal Content in Different Plant Communities[J]. Journal of Zhejiang Forestry Science and Technology, 2021, 41(4): 32-38. DOI: 10.3969/j.issn.1001-3776.2021.04.005
Citation: ZHANG Tian-ran, DING Gao-feng, LOU Yi-lei, HUANG Fang, LI Xiao-lu, YUAN Chu-yang, YU Hui, YAN Hai, SHAO Feng. Mass Concentration of PM2.5 and Heavy Metal Content in Different Plant Communities[J]. Journal of Zhejiang Forestry Science and Technology, 2021, 41(4): 32-38. DOI: 10.3969/j.issn.1001-3776.2021.04.005

不同植物群落内PM2.5 及重金属元素滞纳季相特征

Mass Concentration of PM2.5 and Heavy Metal Content in Different Plant Communities

  • 摘要: 为探究不同植物群落内PM2.5 中重金属质量浓度的时空变化规律及影响因素,选择2017 年3 月、4 月(春 季)和2017 年2 月、12 月(冬季),于浙江农林大学东湖校园选取常绿灌丛、常绿阔叶林、针阔混交林、落叶 阔叶林和疏林草地5 种群落作为研究对象,采用智能中流量TSP 采样器采集空气中的PM2.5,通过电感耦合等离 子体质谱仪(ICP-MS)检测样品上重金属的组成及质量浓度。结果表明:在5 种植物群落内, PM2.5 中11 种重 金属的总质量浓度平均值为冬季(897.14±90.39 ng·m-3)>春季(599.24±59.36 ng·m-3);春、冬季,PM2.5 的质 量浓度和PM2.5 中重金属的总质量浓度平均值的空间变化基本一致,均为疏林草地最高,常绿阔叶林最低,PM2.5 中重金属的总质量浓度平均值为疏林草地(841.96±77.65 ng·m-3)>常绿灌丛(799.21±73.97 ng·m-3)>落叶阔 叶林(774.40±76.44 ng·m-3)>针阔混交林(703.68±69.30 ng·m-3)>常绿阔叶林(621.70±64.63 ng·m-3);Cr、 Mn、Cu、As、Sb、Zn 和Pb 7 种重金属质量浓度的季节变化明显(P<0.05),而V、Co、Ni 和Cd 4 种重金属质 量浓度的季节变化不显著(P>0.05)。风景园林师规划和设计城市绿地时,应选取抗污染能力和适应能力强的树 种,合理构建植物群落结构,保持林下空间的通透性。

     

    Abstract: In March and April (spring), February and November (winter), collection was made on mass concentration of PM2.5 and heavy metal in different plant communities namely evergreen shrub, evergreen broad leaf stand, mixed forest of conifers and broad leaf, deciduous broad leaf stand and scarce forest and grassland in Zhejiang A&F University. The results revealed that the average total mass concentrations of heavy metals in PM2.5 in five plant communities were higher in winter (897.14±90.39 ng·m-3) than in spring (599.24±59.36 ng·m-3). Average total mass concentrations in the two seasons were ordered by 841.96±77.65 ng·m-3 (scarce forest and grassland) > 799.21±73.97 ng·m-3 (evergreen shrub) > 774.40±76.44 ng·m-3 (deciduous broadleaf stand) > 703.68±69.30 ng·m-3 (mixed coniferous and broadleaf) > 621.70±64.63 ng·m-3 (evergreen broadleaf stand). Mass concentration of Cr, Mn, Cu, As, Sb, Zn and Pb had evident change with season, while that of V, Co, Ni and Cd had no evident change.

     

/

返回文章
返回