摘要
在秦岭火地塘林区选择了锐齿栎林(Quercus aliena var.acuteserrata)和油松林(Pinus tabulaeformis)两种主要林型,采用对比分析的方法,就其林冠层对大气降雨水质的影响进行了探讨。结果表明:锐齿栎林、油松林林冠层均有降低雨水酸性的作用,油松林降低雨水酸性的能力相对较强;两种林型林冠层对雨水中SO24-质量浓度虽有调节作用,但更多表现为吸附,油松林的吸附作用相对较强;两者对雨水中Fe有调升作用,锐齿栎林调升幅度较大;锐齿栎林、油松林林冠层对雨水中Zn、Cu、Pb、Cd有较强的净化作用;在降低雨水中N、P和净化Cr方面,油松林优于锐齿栎林,但在稳定As方面,锐齿栎林优于油松林。
According to the main forest types in Qinling Mountain Range,Quercus aliena var.acuteserrata and Pinus tabulaeformis stands in Huoditang forest region were chosen to study the effects of their forest canopies on rain water quality by the method of comparative analysis.Result showed that forest canopies of Q.aliena var.acuteserrata and P.tabulaeformis stands could both reduce the acidity of rain water,and the latter was relatively strong.Although the two forest canopies had the ability of regulating the concentration of SO2-4 in rain water,it showed more abilities to absorb SO2-4 and the absorption effect of P.tabulaeformis was better.The two forest canopies could also enrich Fe in rain water,and the enrichment of Q.aliena var.acuteserrata was greater.Moreover,the forest canopies had strong purification on Zn,Cu,Pb,Cd in rain water.P.tabulaeformis canopy was better than Q.aliena var.acuteserrata in reducing N,P,Cr in rain water,but it was opposite in making As in rain water stable.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2011年第2期53-56,共4页
Journal of Northeast Forestry University
基金
国家林业局林业公益性行业科研专项(201004036)
关键词
秦岭
锐齿栎
油松
林冠层
水质
Qinling Mountain Range
Quercus aliena var. acuteserrata
Pinus tabulaeformis
Forest canopies
Water quality
