Journal of Food, Agriculture and Environment

Vol 12, Issue 1,2014
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Accumulation of heavy metals associated with trees planted in Beijing, China


Shaowei Lu 1, Lingwei Kong 2 *, Shaoning Li 1, Bo Chen 1, Yuping Zhang 1, Qinhua Pan 1

Recieved Date: 2013-10-18, Accepted Date: 2014-01-24


Trees have been promoted for pollution control in high-density urban environments, but the actual capacity to accumulate pollutants is known for only a few woody species. Numerous shrub and tree species (i.e. Salix japonica, Salix babylonica, Pinus bungeana, Platycladus orientalis and Pinus tabuliformis) have been planted in Beijing, China, to combat air pollution. We sampled heavy metals (Cu, Cr, Pb, Zn) in soil and leaves of 5 species at four sites in Beijing and adjacent areas. The results show that 1) the soil of Jingshan Park is worst polluted by heavy metals, followed by Olympic Park, Shuiguan Great Wall and Songshan Nature Reserve, with underlying ecological risk level reducing accordingly as 36.82, 14.90, 14.10 and 13.10; 2) in a certain range of concentration, the heavy metal accumulation capacity of a blade first increases and then decreases as the heavy metal content of soil continue to rise, but the accumulation content advances continuously; 3) the blade of S. japonica has stronger capacity of accumulating Cu and Pb, which is 3.2 times that of Platycladus and 1.68 times of S. babylonica, while the blade of S. babylonica has stronger capacity of accumulating Zn, 2.66 times that of Platycladus; 4) the blade of Platycladus has stronger capacity of accumulating Cr, 1.84 times that of P. bungeana. The comprehensive accumulation capacity of different tree species is sorted in descending order as S. babylonica (1.049), S. japonica (0.808), P. tabuliformis (0.692), P. bungeana (0.681) and Platycladus (0.534).


Greening tree species, heavy metal, accumulation capacity

Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 1
Category: Environment
Pages: 508-512

Full text for Subscribers

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

Purchase this Article:   20 Purchase PDF Order Reprints for 15

Share this article :