[1]WANG Zhou-feng,LIU Wei-guo,WANG Zheng.The Effects of Burning on Plant’s Nitrogen Content and Nitrogen Stable Isotopic Compositions[J].Research of Soil and Water Conservation,2008,15(02):111-116.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 02
Page number:
111-116
Column:
Public date:
2008-04-20
- Title:
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The Effects of Burning on Plant’s Nitrogen Content and Nitrogen Stable Isotopic Compositions
- Author(s):
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WANG Zhou-feng1,2, LIU Wei-guo1, WANG Zheng1,2
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1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi’an 710075, China;
2. Graduate University of CAS, Beijing 100039, China
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- Keywords:
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nitrogen isotopic composition; plant; burning; ash; gaseous material
- CLC:
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Q945.12;X171.1
- DOI:
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- Abstract:
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Fire affair can cause to changes of ecosystem’s carbon or nitrogen cycles and its distribution,and further effect on the local area even global climate change.However,stable isotopic techniques can help us to understand correlations between vegetation and gaseous material caused by fire affair.For better understanding correlations among plant,ash and gaseous by plant burning,controlled experiment was done in order to know changes of nitrogen content and nitrogen stable isotopic composition of different part.The results show that:more than 65% weight of plant and 90% nitrogen content losing by form of gaseous material during burning.Nitrogen isotopic composition of different plant is from -4.0‰ to 5.2‰.Ash nitrogen isotopic composition increased from 0 to 1.6‰,which may be caused by 14N volatilized by means of gaseous material.The higher correlation was found among plant,plant ash and gaseous material,and the relationship implied us that nitrogen isotopic composition can be used to trace nitrogen cycle mechanism among plant,soil and atmosphere.