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《Journal of Northeast Forestry University》 2006-03
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Ash Contents of Main Arbor Species in Daxing'an Mountains

Deng Guangrui Hu Haiqing (Forestry College of Northeast Forestry University,Harbin 150040,P.R.China)  
The simialarities and differences of ash contents of different species and different parts of the same species are analysed by measuring ash contents of main arbor species in Daxing'an Mountains.The reasons that result in the differences are found out. Result showed that each tree specie has a low ash content in trunk and a slight difference in ash contents of bark and branch. Except for think, the ash content of Populus davidiana is significantly higher than that of other tree species.The difference in ash content of different species is remarkable,while it is not significant between branches in upper,middle,and lower crown positions and between other parts.Ash content of forest fuels has a negative relationship with carbon content.
【Fund】: 国家攻关重大专项(2001-BA509B17);; 国家自然科学基金项目(30471404);; 国家博士点基金(20040225003)资助项目。
【CateGory Index】: S762
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