Study on the Absorption Ability of Several Plants for Dust and Heavy Metals in Kunming

doi:10.13466/j.cnki.lyzygl.2016.03.021

Abstract

Abstract: In comparison with the clean areas,the trees planted more than 10 years ago and used frequently were selected as object in the different pollution areas. This study mensurated the amount of dust per unit area with weight method and heavy metal content of soil,leaf dust and leaf after digestion in summer in 2014 and 2015,the correlation among them was analyzed with SPSS. The results show the amount of dust catching at the same height per unit leaf area or average per unit area of 10 tree species is as follows:industrial area > the main city area > clean control area.The dust catching ability of six broadleaf tree species is Cinnamomum japonicumSieb>Osmanthus fragrans>Ligustrun lucidum Ait >Platanus acerifolia(Ait.)>Magnolia Grandiflora Linn>Celtis kunmingensis Cheng et Hong,blocking effect of conifers from large to small is as follows:Sabina chinensis (L.) Ant.cv.Kaizuca> Sabina chinensis (L.) Ant.cv.Pyramidalis> Cryptomeria japonica (L.f.) D.Don>Cedrus deodara (Roxb.) G.Don;The dust amount in low position was significantly higher than that of the high position whether conifer or broadleaf trees,the enrichment ability of all trees for heavy metals is different;Pb,Cu,Cd and Zn in the leaves of plants can be used to monitor the pollution in the atmosphere.

Key words: the amount of dust, heavy metals, Kunming

CLC Number:

X171.4

LI Yanmei, CHEN Qibo, LI Yanqin, BEI Rongta. Study on the Absorption Ability of Several Plants for Dust and Heavy Metals in Kunming[J]. FOREST RESOURCES WANAGEMENT, 2016, (3): 116-121.

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