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应用生态学报 ›› 2002, Vol. ›› Issue (4): 463-466.

• 研究论文 • 上一篇    下一篇

污泥草地利用的初步研究

陈涛1, 王新1, 梁仁禄1, 杨玉森2, 尹宏生2, 张大南2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳 110016;
    2. 沈阳北部污水处理厂, 沈阳 110141
  • 收稿日期:2001-03-29 修回日期:2001-08-29 出版日期:2002-04-15
  • 通讯作者: 陈涛,男,1937年生,研究员.主要从事污染生态、城市与区域生态研究,发表论文近100篇,专著、合著6部.E-mail:Lndscp@iae.ac.cn
  • 基金资助:
    国家建设部立项(2000-285).

Sewage sludge as fertilizer for grassland

CHEN Tao1, WANG Xin1, LIANG Renlu1   

  1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016
  • Received:2001-03-29 Revised:2001-08-29 Online:2002-04-15

摘要: 对经堆肥处理的污泥有机肥培育结缕草(Zoysia japonica)的初步研究表明,在污泥符合农用标准条件下,以Cd为施污泥肥量的限制因子,在施污泥有机肥45t·hm-2(干重)以下时,在微酸性土壤(pH<6.5),土壤中Cd含量低于Cd的土壤环境质量标准(0.3mg·kg-1),地下水NO3--N含量低于地面水Ⅰ、Ⅱ类标准(NO3--N10mg·kg-1,P0.1mg·kg-1).土壤中有机质、速效N、总N、总P分别比对照增加16%、78%、61和140%,结缕草生物量比对照区高1倍.可以认为,污泥草地利用是一种良好途径.

Abstract: The experiment of sewage sludge composted as fertilizer for Zoysia japonica was conducted, and the results showed that Cd content in soil was lower than0.3mg穔g-1 under the condition of the fertilizer application lower than45t穐m-2(dry weight)and the pHvalue of soil lower than6.5 (Cd as the limiting factor for the amount of fertilizer application). NO3- -Ncontent of groundwater was lower than the standard of the first class groundwater (10mg穔g-1).The contents of organic matter, available N, total N, and total Pwere higher than those under control by 16%, 78%, 61%, and 140%, respectively. The biomass of Zoysia japonica was increased two times a-gainst the control. Therefore, sewage sludge utilized as fertilizer for grassland might be a valuable approach.

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