摘要
通过对南平地区森林降水酸度和化学成分的定位监测，结合１０个树种的树皮浸提液的分析表明，树皮酸化和大气污染之间存在着明显的相互关系。在大气污染较重、降水酸度较高的西芹林场，所有树皮样品的酸度均比对照的福建林学院实验林的高，对碱的缓冲能力也较大。明显酸化的树干茎流影响了林下土壤的酸度。在一定范围内，离树干越近，土壤的酸度越高。因此，树皮对南平地区大气污染和降水酸度具有比较敏感的指示作用。
The locating monitor of acidity and chemical
components of rainfall,throughfall and stemflow was implemented for one year,and pH values
andbuffuring capacity were determined for bark samples of ten tree species
inNanping,Fujian.The acidification of tree barks closely related to the airpollution. All tree bark
samples in Xiqin Forest Farm showed more acidityand greater buffuring capacity against alkali
than those in Experimental For-est of Fujian Forestry College.The acidified stemflow affected
the soil acidityaround the tree stem.Tree bark was reconunended as a sensitive indicator ofair
pollution and precipitation acidity in Nanping.
出处
《浙江林学院学报》
CSCD
1996年第2期136-140,共5页
Journal of Zhejiang Forestry College
基金
日本国际绿化推进中心(JIFPRO)资助项目
关键词
空气污染
降水
酸度
树皮
干流
air pollution
precipitation
acidity
barks
stemflow
