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Chemical Composition of Rainfall, Throughfall, Runoff and Outlet Flow in a Small Watershed of Secondary Forest, Eastern China

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Abstract:

Rainfall, throughfall, stemflow, runoff and outlet flow were studied in a secondary forest during a rain season from April to October in 2009. Some of the chemicals in throughfall, stemflow, runoff and outlet flow were increased in contrast with incident rainfall. The pH value of the water sample was in the order rainfall > throughfall > runoff > outlet flow > stemflow. The concentration of chemicals of rainfall was in the order SO42- > NO3- > Na+ > Cl- > K+ > Ca2+ > NH4+> Mg2+ >PO43-. The mean concentrations of nutrients in throughfall, stemflow and runoff were significantly higher than those in incident rainfall except Na+ and NH4+. The concentration of chemicals of outlet flow was in the order SO42- > Cl- > NO3- > Ca2+ > Mg2+ > Na+ > K+ >NH4+ >PO43-.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

3233-3236

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.3233

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Cite this paper

Online since:

August 2013

Authors:

Xiao Ming Wang*, Qian Li, Ben Zhi Zhou

Keywords:

Rainfall, Runoff, Stemflow, Subtropical Secondary Forest, Throughfall

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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