|Table of Contents|

Characteristics of Heavy Metals in Seven Common Economic Forest of Beijing(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年01
Page:
75-82
Research Field:
Publishing date:

Info

Title:
Characteristics of Heavy Metals in Seven Common Economic Forest of Beijing
Author(s):
LI Shaoning1; 2; TIAN Shaoqiang3; ZHAO Yunge4; LIU Bin4; CHEN Bo1; LU Shaowei1; 2
(1.Forestry and Pomology Institute，Beijing Academy of Agricultural and Forestry Sciences，Beijing 100093；2.Beijing Collaborative Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees，Beijing 100093;3.Luanxian Forestry Bureau of Hebei,Tangshan,Hebei 063700;4.College of Forestry，Agricultural University of Hebei，Baoding，Hebei 071000)
Keywords:
economic forest; heavy metal; absorption; tress species
PACS:
-
DOI:
10.11937/bfyy.201701019
Abstract:
Seven kinds of common economic forest tree of Beijing were used as research abject，through microwave digestion method，the heavy metal content in plant leaves and soil were measured by using ICP-MS inductively coupled plasma mass spectrometry and inductively coupled plasma emission spectrometry.The results showed that the contents of metal elements in the leaves of Juglans regia，Pyrus pyrifolia，Malus pumila Mill.，Prunus persica and Ziziphus jujuba Mill. were in the same order as Zn＞Cu＞Cr＞Ni＞Pb＞As＞Cd，and the contents of Zn and Cu were obviously higher than those of other elements，and the range was between 12.57-23.90 mg?kg-1 and 4.52-10.25 mg?kg-1；seven kinds of economic forest absorption of heavy metal elements of the ability difference was remarkable，among them，Prunus persica to Cr(5.94 mg?kg-1)，Ni(5.60 mg?kg-1) absorption capacity was stronger，Pyrus pyrifolia to Cu (10.25 mg?kg-1)ability was stronger，Prunus pseudocerasus and Ziziphus jujuba Mill.to Zn absorption ability were stronger，respectively 23.80 mg?kg-1,23.90 mg?kg-1;characteristics of heavy metal content in leaves in different seasons，leaf absorption of Zn，Cu，Ni，Cr seasonal trend of different tree species were significant difference.Some of the species in the winter absorption or in summer was the highest，but the tree leaves of Ni content minimum values were in the autumn，the variation characteristics of Pb，As and Cd were completely consistent with the variation of the absorption，both of which were higher in the winter；most of correlation between heavy metal content of leaves and heavy metal content in the soil were not significant difference (P>0.05).

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Last Update: 2017-03-16