天津主要绿化树种叶片吸滞重金属及硫的能力分析  

ANALYSIS OF ABSORPTION ABILITY OF COMMON GREEN TREES FOR HEAVY METALS AND S IN TIANJIN

作　　者：陈波[1] 鲁少波[2] 鲁绍伟[1] 李少宁[1] 田少强 王哲 石媛[4] 

机构地区：[1]北京市农林科学院林业果树研究所,北京100093 [2]北京林业大学,北京100083 [3]滦县林业局,唐山063700 [4]河北农业大学林学院,保定071000

出　　处：《内蒙古农业大学学报（自然科学版）》2015年第4期48-54,共7页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：林业公益性行业科研专项"京津城市森林生态服务功能研究"(201204108)

摘　　要：以天津市主要绿化树种为研究对象,对叶片中重金属元素含量和S进行了分析。结果表明：不同树种叶片吸滞As含量最多的是白蜡（143.48mg/kg）,最小是杨树（121.80mg/kg）;吸滞Cd含量最多是桧柏（1.05mg/kg）,最小的是槐树（0.27mg/kg）;吸滞Cr含量最多的是杨树（15.98mg/kg）,最小的是龙柏（11.65mg/kg）;吸滞Cu含量最多的是白蜡（41.85mg/kg）,最小的是龙柏（20.20mg/kg）;吸滞Pb含量最多的是白蜡（47.01mg/kg）,最小的是杨树（35.39mg/kg）;吸滞S含量最多的是柳树（7.96g/kg）,最小的是龙柏（1.44g/kg）;元素含量的最高值与最低值相差在1-6倍之间,排序基本为：S〉Cu〉Cd〉Cr〉Pb〉As;不同季节叶片中Pb和Cr含量差异性较高,龙柏中冬季Cr含量为秋季的8.90倍,冬季Pb含量为夏季的13.72倍,相差最大。结合四个季节的平均数据,不同绿化树种对重金属元素和S元素吸滞能力总排序为：白蜡〉槐树〉雪松〉柳树〉龙柏〉杨树〉桧柏。The main greening tree species in Tianjin as the research object,analyzed on heavy metal elements and S content in leaves. The results show that： the different tree species leaves absorption As content the most was Fraxinus chinensis（ 143.48 mg / kg）,the minimum was Populus（ 121.80 mg / kg）; absorption Cd content the most was Sabina chinensis（ 1.05 mg / kg）,the smallest was Sophora japonica Linn.（ 0.27 mg / kg）; the most was Populus L.（ 15. 98 mg / kg） and the smallest was Juniperus chinensis（ 11. 65 mg / kg） for absorption Cr content; the most was Fraxinus chinensis（ 41.85 mg / kg） and the smallest was Juniperus chinensis（ 20.20 mg / kg）; absorption Pb content the most was Fraxinus chinensis（ 47.01 mg / kg）,the smallest was Populus（ 35.39 mg / kg）; the most was Salix babylonica（ 7.96 g / kg）,the smallest was Juniperus chinensis（ 1.44 g / kg） for absorption S content; Element content in the highest and lowest differ in 1 - 6 times,basic ranking was S 〉Cu〉 Cd〉 Cr〉 Pb〉 As; the differences of Pb and Cr content was very high in the leaves in different seasonal; the Cr content winter was 8.90 times for autumn,and the Pb content winter was 13.72 times that of summer for Juniperus chinensis. In combination with an average value of four seasons,the rank of different greening tree species absorption to heavy metal and S elements was Fraxinus chinensis 〉Sophora japonica 〉Pins Cedrus〉 Salix babylonica〉 Juniperus chinensis〉 Populus 〉Sabina chinensis.

关 键 词：绿化树种 植物叶片 重金属 S 吸滞能力 天津 

分 类 号：S688[农业科学—观赏园艺]