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Volume 20 Issue 1
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ZHOU Wang-ming, WANG Jin-da, LIU Jing-shuang, QIN Sheng-jin, WANG Yang. Nitrogen input of snowfall in Deyeuxia angustisfolia wetland system in Sanjiang Plain and its ecological effects[J]. Advances in Water Science, 2009, 20(1): 99-104.
Citation: ZHOU Wang-ming, WANG Jin-da, LIU Jing-shuang, QIN Sheng-jin, WANG Yang. Nitrogen input of snowfall in Deyeuxia angustisfolia wetland system in Sanjiang Plain and its ecological effects[J]. Advances in Water Science, 2009, 20(1): 99-104.
shu

Nitrogen input of snowfall in Deyeuxia angustisfolia wetland system in Sanjiang Plain and its ecological effects

  • 1.

    Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China;

  • 2.

    Graduate School of Chinese Academy of Science, Beijing 100039, China

Funds: The study is financially supported by the National Natural Science Foundation of China (No.90211003)
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  • Received Date: November 20, 2007
    Graphical Abstract
    • Abstract
  • In order to study the effect of nitrogen (N) input of snowfall on the Deyeuxia angustisfolia wetland ecosystem in Sanjiang Plain,the snowfall,snow-pack,snow melting-water and leakage solution of soil (0～10 cm) were monitored from November 2006 to April 2007.The results show that the seasonality of the N concentration in snowfall is evident,and influenced by the manifold factors.The deposition of TIN,TON and TN in snowfall are 0.375,0.591 and 0.966 kg/hm2 in winter,respectively.The snow-pack reservoir determines the N reservoir.The NH4+-N and TON are the main body of TIN and TN in the snow melting-water,respectively,but the NO3--N and TIN lose more easily than NH4+-N,TON,respectively.The interceptions of TIN,TON and TN are 1.53,0.1 and 1.63 kg/hm2 by soil (0～10 cm) respectively.The nitrogen input of snow melting-water has directie ecological signification which stimulates growth of the plant and the microbe in soil.
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    • References (13)
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