期刊论文

中文

中南林业科技大学学报

1673-923X

2011

31

1

59-64

10.14067/j.cnki.1673-923x.2011.01.018

教育部新世纪优秀人才支持计划项目:城市森林生态系统碳吸存及测算技术研究（NCET-10-0151）；

本校为第一机构

通过对湖南会同3个杉木人工林集水区的大气降水及乔木层,灌木层,草本层穿透水的pH值,NH4+--N,NO3---N,P,K,Mg和Ca质量浓度进行测定,结果表明:各元素质量浓度的大小顺序为草本层>乔木层>灌木层;在对山洼,山麓,山坡3个不同坡位的草本层,灌木层及乔木层林冠截留进行研究,得出各元素质量浓度大小排序为山洼处>山坡处>山麓处;NO3---N的质量浓度在山洼处和山麓处呈明显差异,P,K,Mg的质量浓度在山洼处和山坡处呈明显差异, Ca的在山洼和山坡,山麓处都有差异

The measurements of pH values,contents of NH＋4 — N,NO-3 — N,P,K,Mg and Ca in rainfall,throughfall of canopy and shrub layer,and dripping of herb layer in three Chinese fir plantation watersheds were carried out.The results show that the element contents of different layers were ordered by size：herbtree specieshrub;The studies of herb layer,shrub layer and tree canopy interception in valley,foothills,and hillside show that the six elements contents were sorted by size： vallyhillsidefoothills;The contents of NO-3 — N were significant differ...