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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (4): 101-106.

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CLIMATIC REGIONALIZATION ON THE DISTRIBUTION AREA OF PINUS BUNGEANA

Xiaoping Wang1,Jiuling Wang2,Jinglan Liu2,Guozhi Wang3   

  1. 1. Forestry Bureau of Beijing Municipality Beijing 100029
    2. College of Resources and Environment of Forest, BFU Beijing 100083
    3. Forestry Bureau of Zhangye City, Gansu Province Zhangye 734000
  • Received:1998-03-19 Online:1999-07-25 Published:1999-07-25

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Abstract:

Based on the climatic data of 40 representative plots in the distribution area of Pinus bungeana Zucc., the distribution area can be divided into 6 climatic regions: the North, the West, the middle, the south-middle, the south-west and the South respectively by the method of PCA(principle components analysis) and ISODATA cluster analysis. The results show that in the distribution area of P. bungeana Zucc., the geographical locations of different climatic regions are discontinuous and the differences of climatic condition among the regions are very significant. The growth pattern of trees and distribution trends is related to climatic condition closely. Furthermore, the typical picking sites for provenance test are selected.

Key words: Pinus bungeana Zucc., Distribution area, Climatic regionalization