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应用生态学报 ›› 2002, Vol. ›› Issue (5): 601-604.

• 研究论文 • 上一篇    下一篇

沈阳地区主要树木净化SO2潜力及植树定额的估算

韩阳, 李珍珍, 刘荣坤   

  1. 辽宁大学环境与生命科学学院, 沈阳 110036
  • 收稿日期:2001-06-08 修回日期:2001-09-03
  • 通讯作者: 韩阳,女,1962年生,副教授,博士研究生,主要从事植物生理生态方面的研究,发表论文20篇.E-mail:yang.h.@163.com
  • 基金资助:
    沈阳市科委资助项目(20004904100)

Potential of purifying SO2 of main tree species and their planting quota in Shenyang area

HAN Yang, LI Zhenzhen, LIU Rongkun   

  1. College of Environment and Life Science, Liaoning University, Shenyang 110036
  • Received:2001-06-08 Revised:2001-09-03

摘要: 通过实地测定和熏烟实验,揭示了沈阳地区不同类型树木的总生物量、SO2吸收强度和S的吸转周期数,三者的乘积是树木净化SO2的总潜力,为4.39×106kg,约占沈阳年排S量120×106kg的3.66%.树木平均最高可净化S12.19kg·km-2·d-1.沈阳现有树种组成的平均吸S量为0.70kg株-1·年-1;若以阔叶乔木平均吸S量1.35kg·株-1·年-1计,欲全部净化沈阳的年排S量,需要阔叶乔木8888×104株,相当于现有树木株数的12.9倍.经推算,在增强环保力度、减少年排S量20%的条件下,再扩植现有树木1.0倍的阔叶乔木,即可使沈阳大气SO2浓度下降到0.06mg·m-3以下,成为环境达标城市.

关键词: 沈阳地区, 主要树木, 净化SO2潜力, 植树定额, 土壤呼吸, Q10, 科尔沁沙地, R10, 氮肥

Abstract: The total potential of purifying SO2 of main tree species was studied by using the combination of field measurement and fumigation experiment in this paper.The integrated value of purifying SO2 including total bimass,absorption intensity of SO2,and absorption transformation periods of sulfur by trees was 4.39?106 kg,which was accouted for 3.66% of total sulfur released per year in Shenyang.It indicated that the maximum daily potential of purifying SO2 of trees might be 12.19kg穔m-2.Supposed that the average annual absorption capacity for sulfur of tress in Shenyang was 0.70 kg per tree and the average annual absorption capacity for sulfur of broad leaved trees was 1.35kg穞ree-1,88.88 million broad leaved trees would be required to purify the annual released SO2 thoroughly.This number was equivalent to 12.9 times of existing trees.On the conditions of strengthening environmental protection and decreasing 20% of annual released sulfur,if the broad leaved trees was double of the present number,SO2 content in air might be below 0.06 mg穖-3 and Shenyang would become a standardizing city with clear air.

Key words: Shenyang area, Main tree, Potential of purifying SO2, Quota of planting tree, soil respiration, nitrogen fertilizer, R10., Keerqin sandy land, Q10

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