摘要
为筛选景观效果好、抗污净污能力强的树种,加强城市道路绿化,本试验以张氏红山茶和金花茶为材料,选取受污染程度不同的区域进行试验,420 d后对两个树种各个器官氟化物和SO2含量进行了测定。结果表明:2个树种对SO_(2)、氟化物等污染气体具有较强吸收净化能力,并表现出一定的抗性。张氏红山茶和金花茶的全株相对吸硫量分别为1.91和1.49 g·kg^(-1),全株相对吸氟量分别为1757.43和653.95 mg·kg^(-1);两个树种各器官对SO_(2)的累积能力以叶和根最强,枝次之,主干最小;对氟的累积能力依次为叶>枝>主干>根;在420 d的污染环境下,张氏红山茶的叶未表现出各种受害状,金花茶老幼叶在不同时期,有轻度受害状;初步确定,张氏红山茶和金花茶为一级抗大气污染树种。
In order to screen tree species with good landscape effect and strong anti pollution and decontamination ability and strengthen urban road greening,we took Camellia changii and Camellia nitidissima as test materials,selected areas with different pollution degrees for experiment,and measured the contents of F and S in each organ of the two tree species after 420 days.The results showed that the two tree species had strong absorption and purification ability to SO_(2),fluoride and other polluting gases,and showed certain resistance.The relative sulfur uptake of Camillia changii and Camellia nitidissima were 1.91 and 1.49 g·kg^(-1),and the relative fluorine uptake of Camillia changii and Camellia nitidissima were 1757.43 and 653.95 mg·kg^(-1),respectively;The accumulation capacity of SO_(2) in each organ of the two tree species is as follows:the leaf and root were the strongest,the branch was the second,and the trunk was the smallest;The accumulation capacity of fluorine was as follows:leaf>branch>trunk>root;Under 420 days of polluted environment,the leaves of Camillia changii did not show various damage,and the old and young leaves of Camellia nitidissima had slight damage at different stages;It is preliminarily determined that Camillia changii and Camellia nitidissima are first-class anti air pollution tree species.
作者
赵鸿杰
李嘉辉
许君宇
韦隆健
高菲
ZHAO Hong-jie;LI Jia-hui;XU Jun-yu;WEI Long-jian;GAO Fei(Foshan Institute of Forestry(Foshan Botanical Garden),Foshan 528222,China)
出处
《黑龙江农业科学》
2021年第9期95-97,共3页
Heilongjiang Agricultural Sciences
关键词
张氏红山茶
金花茶
大气污染
抗污能力
Camillia changii
Camellia nitidissima
air pollution
pollutant-resistance
