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大气污染梯度下树木附生苔藓植物生理生化指标的变化(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2006年05期
Page:
5-9
Column:
研究论文
publishdate:
2006-05-20

Article Info:/Info

Title:
Physiological and Biochemical Changes in Epiphytic Bryophytes Under Different Air Pollution Levels
Article ID:
1000-2006(2006)05-0005-05
Author(s):
ZHANG Yin long LU Ya-fang WANG Ya-chao
Key Laboratory of Forestry Ecological Engineering Jiangsu Province Nanjing Forestry University, Nanjing 210037. China
Keywords:
Air pollution Bryophytes Physiological and biochemical changes Nanjing city
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2006.05.002
Document Code:
A
Abstract:
As the particular morphology and structure of bryophytes, the contents of poilutants in the bryophytes were taken as the measure of air pollution level. And the change of physiological and biochemical changes in two epiphytic bryophytes Haplocladiurn microphyllum and Entodon compressus in the six regions in Nanjing were studied. The results showed that with the gradual aggravates of air pollution, heavy metals and S element con tents in two epiphytic bryophytes increased, the total chlorophyll contents all decreased. Free proline content and cell membrane permeability all obviously increased, but the catalase activities in the tow bryophytes took different change patterns. And the impact of air pollution to physiological and biochemical changes in two epiphytic bryophytes reached 1% significant level except the the catalase activities. The physiological and biochemical changes in H. microphyllum was in a greater degree than in E. co,npressus, which showed that H. micro phyllum was more sensitive to air pollution.

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Last Update: 2013-05-20