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Citation:

Influence of Betula platyphylla Plantations at Mountainous Region in East Heilongjiang on Water Quality

  • Received Date: 2010-01-18
    Accepted Date: 2013-02-09
  • The water quality of rainfall, throughfall, stemflow and runoff in Betula platyphylla plantations at mountainous region in east Heilongjiang Province was studied. The water quality indexes, including pH, DO, TURB, TDS, COND, ORP, K, Na, Ca, Mg, Cu, Zn, Mn and Fe were analyzed. There was a gradual increase in TURB and TDS of rainfall after passing through the forest canopies. With the exception of Ca, there were different degrees of increase in other chemical elements in the throughfall. The content of chemical elements in throughfall followed the order of K>Ca>Na>Mg>Mn>Fe>Zn>Cu. The content of chemical elements in stemflow followed the order of K>Ca>Mg>Na>Fe>Mn>Zn>Cu. The content of chemical elements in runoff followed the order of K>Ca>Na>Mg>Fe>Mn>Zn>Cu. The variance coefficient of elements in rainfall was higher except Na and Ca. The variance coefficient of Cu was higher than other elements in throughfall and stemflow. And the variance coefficient of Zn was the highest in runoff. The leaching coefficient of the elements in throughfall was observed to be in the following order: Mn>K>Mg>Fe>Cu>Zn>Na>Ca. The order for stemflow was K>Mn>Mg>Fe>Cu>Zn> Ca>Na. After leaching, K and Ca increased in throughfall and stemflow.
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Influence of Betula platyphylla Plantations at Mountainous Region in East Heilongjiang on Water Quality

  • 1. College of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China
  • 2. College of Life Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China
  • 3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Abstract: The water quality of rainfall, throughfall, stemflow and runoff in Betula platyphylla plantations at mountainous region in east Heilongjiang Province was studied. The water quality indexes, including pH, DO, TURB, TDS, COND, ORP, K, Na, Ca, Mg, Cu, Zn, Mn and Fe were analyzed. There was a gradual increase in TURB and TDS of rainfall after passing through the forest canopies. With the exception of Ca, there were different degrees of increase in other chemical elements in the throughfall. The content of chemical elements in throughfall followed the order of K>Ca>Na>Mg>Mn>Fe>Zn>Cu. The content of chemical elements in stemflow followed the order of K>Ca>Mg>Na>Fe>Mn>Zn>Cu. The content of chemical elements in runoff followed the order of K>Ca>Na>Mg>Fe>Mn>Zn>Cu. The variance coefficient of elements in rainfall was higher except Na and Ca. The variance coefficient of Cu was higher than other elements in throughfall and stemflow. And the variance coefficient of Zn was the highest in runoff. The leaching coefficient of the elements in throughfall was observed to be in the following order: Mn>K>Mg>Fe>Cu>Zn>Na>Ca. The order for stemflow was K>Mn>Mg>Fe>Cu>Zn> Ca>Na. After leaching, K and Ca increased in throughfall and stemflow.

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