[1]YANG Zhoumin.Study on Seasonal Dust Retention Capacity of Different Green Plants in Xi’an City[J].Research of Soil and Water Conservation,2015,22(04):178-183,188.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
178-183,188
Column:
Public date:
2015-08-28
- Title:
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Study on Seasonal Dust Retention Capacity of Different Green Plants in Xi’an City
- Author(s):
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YANG Zhoumin
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Xi’an Peihua University, Xi’an 710065 China
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- Keywords:
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Xi’an City; green plants; dust retention capacity; seasonal change
- CLC:
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S812.5
- DOI:
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- Abstract:
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Three green plants which were arbors (Maackia amurensis), shrubs (Syzygium aromaticum), herbs (Iris lactea) were taken as experimental materials, the effect of different environmental conditions on the dust catching quantity difference and disgraceful after physiological response were studied. The results showed that the dust retention capacities of these green plants had significant difference (p < 0.05), and the average unit area dust catching quantity followed the order:arbors > shrubs > herbs. The duration which the amount of foliar dust of three green plants reached saturation was about 12 days in summer and spring, and 9 days in autumn and winter, indicating that the amount of foliar dust of three green plants in summer and spring was greater than that of autumn and winter. The surface of dust particle size analysis showed that foliar dust retention of particles in most was TSP, while PM10 and PM2.5 had a certain amount of adsorption. The relative contents of dust of PM2.5, PM10 and TSP were found in arbors top, low shrubs and herbs, in which PM10 and PM2.5 had a significant difference of three green plants (p < 0.05), while TSP had no significant difference (p > 0.05). As the blade disgraceful time prolonging, the relative water content appeared first rise and then falling, while LMA and proline content were contrary to relative water content which increased first and then decreased, and the relative water content, LMA and proline contents of three green plants in summer and spring were greater than those of autumn and winter. Correlation analysis suggested that the dust retention capacities of three green plants were significantly positive correlation with the number of running vehicles (p < 0.01).