酸雨和SO_2暴露对一些不同抗性幼树的影响  

Effects of the Acid Rain and Sulfuric Dioxide Exposure on Several Woody Young Trees with Different Resistance.

作　　者：陈树元[1,2] 徐和宝[1,2] 谢明云 张福珠[1,2] 苗鸿 张宏瑞[1,2] 

机构地区：[1]江苏省中国科学院植物研究所 [2]中国科学院生态环境研究中心

出　　处：《生态学杂志》1998年第2期20-25,共6页Chinese Journal of Ecology

摘　　要：酸雨和ＳＯ２暴露对一些不同抗性幼树的影响陈树元徐和宝谢明云张福珠苗鸿张宏瑞（江苏省中国科学院植物研究所，南京２１００１４）（中国科学院生态环境研究中心，北京１０００８５）ＥｆｅｃｔｓｏｆｔｈｅＡｃｉｄＲａｉｎａｎｄＳｕｌｆｕｒｉｃＤｉｏｘｉｄｅＥｘｐ...The damage and impact of acid rain and sulfuric dioxide exposure alone and in combination on several woody young trees were described in the paper. The exposure tests in open top field chambers were carried out in four kinds of acid rain, pH=2.0, 3.0, 4.5 and 6.6, and in two groups of SO 2 concentrations (mg·m -3 ), 1.5, 1.0, 0.5, 0.03 of first and 3.0, 2.0, 1.0, 0.03 of second respectively. The results showed that blade damage degree was closely related with level, pattern and time of pollution exposure. The difference in sensitivity and reaction to complex exposure was obvious among the trial young trees. When the exposure to acid rain (pH=3.0) and SO 2 (1.0mg·m -3 ) for two days had not aroused blade damage of the resistion trees, the exposure only for one day in same level mentioned above had led to obvious damage of the sensitive trees. In addition, the feedback action to complex exposure was antagonistic and synergistic reaction in resistive and sensitive trees, respectively.

关 键 词：酸雨 SO2 幼树 抗性 

分 类 号：X510.323.5[环境科学与工程—环境工程] X517.032.3