城市污泥对退化森林生态系统土壤的人工熟化研究

应用生态学报 ›› 2002, Vol. ›› Issue (2): 159-162.

城市污泥对退化森林生态系统土壤的人工熟化研究

李贵宝¹, 尹澄清¹, 林永标², 李志安²

1. 中国科学院生态环境研究中心环境水化学国家重点实验室, 北京 100085;
2. 中国科学院华南植物研究所, 广州 510650

收稿日期:2001-05-16 修回日期:2001-09-19 出版日期:2002-02-15
通讯作者: 李贵宝,男,1963年生,博士(后),副研究员,主要从事生态风险评价、水环境污染与废弃物治理等工作,在国内外刊物发表论文20余篇.E-mail:ligb@iwh.com
基金资助:
国家自然科学基金(59978051);中国科学院鹤山丘陵综合开放试验站开放基金;中国博士后科学基金(中博基[1999]10号)资助项目

Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge

LI Guibao¹, YIN Chengqing¹, LIN Yongbiao², LI Zhian ²

1. State Key Lab.of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;
2. South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650

Received:2001-05-16 Revised:2001-09-19 Online:2002-02-15

摘要/Abstract

摘要： 森林退化问题在热带亚热带地区较为严重.在广东鹤山丘陵地区进行的野外试验结果表明,施用城市污水厂污泥可有效地促进树木的生长发育如增加株高和地径,对林中的灌草层植被也有促进和改善;同时可提高林地土壤肥力如土壤有机质和有效养分等.对土壤重金属残留的监测表明,施用污水厂污泥后主要问题是增加了Pb含量,其增加量随污泥用量增加而增加;其它重金属增加不显著.

关键词: 污泥, 森林, 土壤, 熟化

Abstract: The increasing occurrence of forest ecosystem degradation is a serious problem in tropical and subtropical regions.Field experiments showed that the application of sludge from a sewage treatment plant could not only promote the growth and reproduction of trees,including the increase in the height and diameter of trees and thus being advantageous to the growth of shrub and herb of trees,but also improve soil fertility such as increasing soil organic matter and available nitrogen and phosphorus.The test of residual heavy metals of soil indicated that the application of sludge increased the content of Pb in the soil and the increment of Pb was varied with the increase of sludge usage.There was no significant increase in other heavy metals.

Key words: Sewage sludge, Forest, Soil, Improvement

中图分类号:

X703

李贵宝, 尹澄清, 林永标, 李志安. 城市污泥对退化森林生态系统土壤的人工熟化研究[J]. 应用生态学报, 2002, (2): 159-162.

LI Guibao, YIN Chengqing, LIN Yongbiao, LI Zhian . Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge[J]. Chinese Journal of Applied Ecology, 2002, (2): 159-162.

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