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摘要: 对浙江省临安市6种植物群落距地面1.5 m处的空气负离子浓度进行了研究。结果表明:不同群落模式的空气负离子浓度差异显著;除草坪外,各群落的负离子浓度显著高于相应的空地;6种参试群落模式的空气负离子浓度相对值由高到低依次为马尾松Pinus massoniana群落,无患子Sapindus mukorossi-广玉兰Magnolia grandiflora混交群落,雷竹Phyllostchys praecox群落,杉木Cunninghamia lanceolata群落,紫薇Lagerstroemia indica群落,草坪;就植物群落负离子昼间变化来看,从7 : 00到19 : 00呈双峰状,分别在9 : 00 - 10 : 00和15 : 00 - 16 : 00各出现1个峰值;对空气负离子与其他气象因子的相关分析显示,空气负离子与相对湿度极显著正相关(P<0.01)、与气温显著负相关(P<0.05)、与太阳辐射强度变化趋势相反。空气负离子浓度与户外紫外线强度呈显著正相关(P<0.05)。图2表3参15Abstract: A comparison of 1.5 m above ground aero-anion and positive air ion concentration for six plant communities,Pinus massoniana,Sapindus mukorossi,Magnolia grandiflora,Phyllostachys praecox,Cunninghamia lanceolata,Lagerstroemia indica,and turf grass,was conducted using a correlation analysis with relative humidity,temperature,solar radiation intensity,and ultraviolet radiation intensity. Results showed that compared to a corresponding open space,the aero-anion effect was better in each plant community,and their individual aero-anion concentration was in the order of P. massoniana>S. mukorossi and M. grandiflora>P. praecox>C. lanceolata>L. indica>turf grass. According to the diurnal variation curve between 7 : 00 and 19 : 00,the aero-anion concentration tended to double peak from 9 : 00 - 10 : 00 and 15 : 00 - 16 : 00. A correlation analysis showed a significant(P<0.01) positive correlation (r = 0.702) between aero-anion concentration and relative humidity,a significant(P<0.05) negative correlation(r = - 0.637) between aero-anion concentration and temperature,a negative correlation(r = - 0.191) between aero-anion concentration and solar radiation intensity,and a significant(P<0.05) positive correlation(r = 0.580) between aero-anion concentration and ultraviolet radiation intensity(UVB).[Ch,2 fig. 3 tab. 15 ref.]
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Key words:
- forest ecology /
- plant communities /
- aero-anion concentration /
- climatic factors /
- ecological efficacy
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2010.02.004
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