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| PubMed | |
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Article by Sun, F. R. 1 |
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Article by Li, Y. M. 1 |
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Article by Chen, J. F. 2 |
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Article by Meng, Q. X. 3 |
��������ɫ��������ظ�ԭ�������ߺ��ݵ���̬ϵͳ�иߵ�ֲ����ݺ��ѹ�Ӣ�����������ֲ���������̼����ָ��(CPI)����ż����ָ��(OEP)���з�������������ֲ�������������������ҪΪC11~C35���������ΪC29��C27��C31�������������зdz����Ե���ż���ƣ��ѹ�Ӣ��������CPI��OEP�����溣�����߶���ǿ�ı仯���ƣ���������������ż�����溣����������һ���仯�������Բ�ǿ��
The distribution characteristics��carbon preference index(CPI)and odd-even preference(OEP) of n-Mkane in Leontopodium leontopodioidie and Taraxacum mongolicum in alpine meadow of northeastern Tibetan Plateau are analyzed by gas chromatograph��The results confirm that the n-alkanes mainly range from C 11 to C35 in the two plants��and the maximum abundance are C29��C27 and C3l��the n-alkane has a strong odd-even preference in higher plants of Taraxacum mongolicum and Leontopodium leontopodioidie��The CPI and OEP show a positive correlation with the altitude in Taraxacum mongolicum��however��the correlation changes irregularly for Leontopodium leontopodioidie��