%0 Journal Article
%T Enhanced fixation of phenanthrene in soils amended with exotic organic materials.<br>外源有机质对土壤中菲的增强固定作用
%A REN Li-li
%A LING Wan-ting
%A GAO Yan-zheng
%A <br>任丽丽
%A 凌婉婷
%A 高彦征
%J 应用生态学报
%D 2008
%I 
%X This paper studied the enhanced fixation of phenanthrene in clay loam soil, sandy silt soil, and silt loam soil under effects of exotic organic materials (EOMs) commercial organic fertilizer and peat. The results showed that after the addition of EOMs, the adsorption isotherms of phenanthrene in test soils were still linear, and distribution was the predominant mechanism for phenanthrene adsorption by soil. The adsorption of phenanthrene was significantly enhanced by the addition of EOMs, and the enhancement of distribution constant (Kd) was positively correlated with the content of soil organic carbon (foc), indicating that the higher the soil foc, the more significant the promotion effect of EOMs addition on phenanthrene adsorption. On the contrary, the desorption of phenanthrene was obviously inhibited by the addition of EOMs. After 64 days of EOMs addition, the extractable amount of phenanthrene was decreased significantly, compared with the control. Since the organic matter content of peat was higher than that of commercial organic fertilizer, the decrease of extractable phenanthrene in soils added with peat was more significant. In addition, the higher the soil foc, the stronger inhibition effect of EOMs on extractability of phenanthrene. On the whole, exotic EOMs could promote the adsorption, while inhibit the desorption and reduce the extractability of phenanthrene in soils.
%K 菲
%K 外源有机质
%K 吸附
%K 解吸
%K 修复
%K 生物可利用性
%K 有机质
%K 土壤吸附
%K 增强
%K 固定作用
%K organic
%K materials
%K soils
%K phenanthrene
%K 吸附固定
%K 抑制效果
%K 有机碳含量
%K 培养
%K 原土
%K 解吸量
%K 解吸实验
%K 增加幅度
%K 土样
%K 机制
%K 分配作用
%K 线性
%K 吸附等温线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=70AAA209A3F5B4C460D325FDF9738904&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=38B194292C032A66&sid=AEE2F90BC0DB5F35&eid=4A8412AEEC89236B&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=27