摘要
对樟树根际土与非根际土壤中PAHs分布特征进行了研究。结果表明:根际土壤中与非根际土壤中共检测出16种PAHs组分,非根际土中PAHs质量分数呈现21～40 cm>41～60 cm>0～20 cm的分布规律,而根际土中PAHs质量分数呈现21～40 cm>0～20 cm>41～60 cm的分布规律;根际土和非根际土中多环芳烃的总含量的最高值均在21～40 cm土层,平均值分别为2.622 9和2.292 6 mg.kg-1;2环和3环低分子量PAHs的迁移能力强于4～6环多环芳烃。
Distribution characteristics of PAHs in rhizosphere soil and non-rhizosphere soil of Cinnamomum camphora were analyzed in this paper.The results show that： there were 16 different compositions of PAHs in rhizosphere soil and non-rhizosphere soil.Distribution law of the mass fractions of total PAHs in non-rhizosphere soil in different layer was 21～40cm41～60cm0～20cm,but in rhizosphere soil,distribution law of the mass fractions of total PAHs was 21～40cm0～20cm41～60cm.The maximum of the mass fractions of total PAHs in rhizosphere soil and non-rhizosphere soil were 21～40cm soil layer,their mean value were 2.6229mg·kg^-1 and 2.2926 mg·kg^-1 separately.The migration ability of lower ringed PAHs was predominant over the higher ringed ones.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2010年第5期18-21,共4页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金项目"多环芳烃在城市森林植物根-土界面的归趋机制研究"(30870455)
新世纪优秀人才计划项目(NCET-10-0151)
湖南省杰出青年基金项目(07JJ1004)
关键词
生态学
PAHS
樟树
根际土
非根际土
分布特征
ecology
PAHs
Cinnamomum camphora
rhizosphere soil
non-rhizosphere soil
distribution characteristics
