昆明10个绿化树种对不同污染区的滞尘及吸净效应  

Study on the Effect of Absorption and Purification Air Pollution of 10 Common Greening Species at Different Polluted Area in Kunming

作　　者：李艳梅[1,2] 陈奇伯[1,2] 李艳芹[1,2] 邓志华[1] 贝荣塔[1] 

机构地区：[1]西南林业大学环境科学与工程学院,云南昆明650224 [2]玉溪森林生态系统国家定位观测研究站,云南昆明650224

出　　处：《西南林业大学学报（自然科学）》2016年第3期105-110,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家林业局林业公益性行业科研专项(201204101-10)资助;云南省高校优势特色重点学科(生态学)建设项目资助

摘　　要：对昆明市不同污染区10个使用频率均较高及树龄比较接近的树种的滞尘能力及其对SO2及NOx的吸收净化效应进行研究,结果表明:阔叶树和针叶树同一高度叶片单位面积滞尘量和平均单位面积滞尘量均表现为:工业区>主城区>清洁对照区;阔叶树滞尘效果从大到小依次为:天竺桂>桂花>大叶女贞>法国梧桐﹥滇朴﹥广玉兰;针叶树滞尘效果从大到小依次为:龙柏>塔柏>柳杉>雪松。对于滞尘效果最好的天竺桂,工业区和主城区的单位面积滞尘量为15.203 g/m^2和8.504 g/m^2,分别为清洁区的10.2倍和5.7倍;4个针叶树种滞尘量之间的差异为1.06~1.43倍,针叶树间滞尘差异没有阔叶树大,无论是阔叶树还是针叶树,"低"位的滞尘量明显高于"高"位;植物叶片中S、N的含量与土壤中S、N的含量相关性较弱,植物叶片中S和N的富集吸收量主要来自于大气;法国梧桐、大叶女贞和桂花对SO_2的富集吸收能力较强,大叶女贞和法国梧桐对NO_x有较强的富集吸收能力。The dust retention and SO2 and NOx absorption and purification of 10 species of trees with high frequency use and similar in tree-age were studied at different polluted area in Kunming. The results showed that catching quantity of per unit leaf area dust at the same high degree and average per unit area dust for broadleaf trees and conifers are as follows： industrial area 〉 main city area 〉 clean check plot; dust-retention ability of broadleaf trees is as the follows： Cinnamomum japonicum 〉 Osmanthus fragrans 〉 Ligustrun lucidum 〉 Platanus acerifolia 〉 Magnolia Grandiflora 〉 Celtis kunmingensis, catching quantity of conifers from large to small is as follows： Sabina chinensis cv. kaizuca 〉 Sabina chinensis cv. pyramidalis 〉 Cryptomeria japonica 〉 Cedrus deodara ; The species of best dust removal effect is Cinnamomum japonicum, its dust catching quantity in industrial area and the main urban area are 15.203 g./m2 and 8. 504 g/m2, they are 10. 2 times and 5.7 times of clean area, respectively; The differ- ence of dust amount for four conifer species is 1.06-1.43 times, the difference was smaller than it is in the broad leaved tree. The dust amount in low position was significantly higher than that of the high position whether conifer or broadleaf trees ; The contents of N and S in the leaves of the plant have a weak correlation with that of the soil, the concentration and absorption of N and S in the leaves of the plant were mainly derived from the atmosphere; The SO2 absorption ability of Platanus acerifolia, Ligustrun lucidum, Osmanthus fragrans and Ligustrun lucidum and Platanus acerifolia for NOx absorption ability are stronger than others.

关 键 词：绿化树种 滞尘 吸收净化能力 昆明 

分 类 号：S719[农业科学—林学]