城市污泥应用于陆地生态系统研究进展

被引:48
作者
白莉萍
伏亚萍
机构
[1] 中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室
基金
北京市自然科学基金;
关键词
污泥; 陆地生态系统; 土壤生态系统; 环境效应;
D O I
暂无
中图分类号
X703 [废水的处理与利用];
学科分类号
083001 [环境科学];
摘要
随着城市化进程加快和人口剧增,城市污泥已成为世界许多城市面临的主要环境问题之一,且不合理的管理可引发严重的环境污染。城市污泥含有大量、微量元素和有机质,可能对土壤及其生产力有利,特别对退化土壤能进行有机修复,并改善土壤理化特性,譬如土壤结构和营养含量。目前,污泥作为一种有机肥料已成为普遍措施。但来自工业及生活污水的污泥常含有重金属、病原物及有毒有机物等,潜在的毒性可能对生态系统构成危险,因此必须经过污泥预处理才可安全施用。评述了近年来国内外污泥应用于陆地生态系统4个方面的主要研究进展:(1)污泥处理与处置方法;(2)污泥应用于农田、草地及森林生态系统;(3)污泥对土壤生态系统的影响,包括污泥对土壤理化性质、土壤酶及微生物的影响;(4)污泥应用的环境效应。提出未来我国污泥处置及利用需要重视的研究领域和方向。
引用
收藏
页码:416 / 426
页数:11
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