Aero-anion ecological efficiency of 13 tree species in Zhejiang Province
doi: 10.11833/j.issn.2095-0756.2011.02.005
- Publish Date: 2011-04-20
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Key words:
- forest ecology /
- aero-anion concentration /
- tree species /
- environmental factors /
- forest stand
Abstract: To provide a theoretical basis for choosing suitable tree species for urban afforestation,diurnal variation of the aero-anion concentration surrounding 13 different stand types(Sapindus mulorossi,Michelia maudiae,Michelia chapensis,Elaeocarpus sylvestris,Cinnamomum camphora,Magnolia grandiflora,Acer palmatumAtropurpureu,Dendronenthamia japonica var. chinensis,Osmanthus fragrans,Koelrenteria paniculata,Prunus serrulata+Buxus sinica,Magnolia denudata+Buxus sinica,and Liquidambar formosana) in the nursery of Xincheng Town,Jiaxing City in Zhejiang Province was compared by LSD and studied using a correlation analysis with environmental factors and characteristic of plant communities. Results showed that among the 13 stand types,a mixed plantation of Prunus serrulata with Buxus sinica (822 particlecm-3) and a pure plantation of Acer palmatumAtropurpureu(743 particlecm-3) had higher aero-anion concentrations with Koelreuteria paniculata (533 particlecm-3) and Sapindus mukorossi (532 particlecm-3) pure plantations having lower concentrations. A multilayer tree-shrub structure had the highest aero-anion concentration (751 particlecm-3) followed by shrubs (700 particlecm-3) then trees (622 particlecm-3). According to the 6 : 00 to 18 : 00 diurnal variation curves,the aero-anion concentration tended to peak at 10 : 00 and with an another general increase from 16 : 00 to 18 : 00. The correlation analysis showed a strong significant,positive correlation between aero-anion concentration and relative humidity(P<0.01,r = 0.473);a strong significant,negative correlation for aero-anion concentration and temperature(P<0.01,r = - 0.504);a significant negative correlation between aero-anion concentration and ultraviolet radiation intensity(P<0.05,r = - 0.305);and a significant positive correlation for aero-anion concentration and planting density(P<0.05,r = 0.648). The plant communities were able to improve the aero-anion concentration of mini-surrounding.[Ch,2 fig. 5 tab. 14 ref.]
Citation: | ZHOU Bin, YU Shu-quan, ZHANG Chao, YI Lita. Aero-anion ecological efficiency of 13 tree species in Zhejiang Province[J]. Journal of Zhejiang A&F University, 2011, 28(2): 200-206. doi: 10.11833/j.issn.2095-0756.2011.02.005 |