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Scientia Silvae Sinicae ›› 1995, Vol. 31 ›› Issue (2): 110-115.

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TREND SURFACE ANALYSIS ON DBH DATA OF CHINESE FIR PROVENANCES

Bowang Chen,Jusheng Hong   

  1. The Forestry Research Institute CAF Beijing 100091
  • Received:1994-06-10 Online:1995-03-25 Published:1995-03-25

Abstract:

Data of 43 Chinese fir provenamces from 55 experimental sites was analyzed with the method of trend surface analysis (TSA). The result showed this Fourier trend surface analysis usually had higher precision than that of polynomial, it could clearly drew out best and lower provenance regions, the subject effect on distinguishing provenance could be reduced, and it would be a powerful tool for provenance research.

Key words: Chinese fir, Provenance test, Geographic variation tend surface analysis