杨树湿心材的化学特性及形成机理研究*

Abstract

Abstract:

Isoion spectrum, Fourier Transform Infrared Spectroscopy and Electron spin resonance spectrum were used to analyze chemical properties of the wood in different year-ring parts in this experiment.The results showed that there was a greater variation in chemical characteristics between wetheartwood and normal sapwood.Compared with sapwood, wetheartwood contained much higher ash and the inorganic elements such as K, Ca, Na, etc.It is evident that there were polyphenols acids, esters and free radicals which affected the colour and the water content in the heartwood.Moreover, it appeared that the characteristic of wetheartwood depanded mainly on the genotype of the clones.

Key words: Poplar, Wetheartwood, Chemical characteristics, Discolouration

Qiang Zhuge,Minren Huang,Huixin Pan,Huogen Li,Weizhong Feng. STUDY ON CHEMICAL CHARACTERISTICS AND FORMATION MECHANISM OF POPLAR WETHEARTWOOD[J]. Scientia Silvae Sinicae, 1997, 33(3): 259-266.

Figures/Tables 7

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References 20

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STUDY ON CHEMICAL CHARACTERISTICS AND FORMATION MECHANISM OF POPLAR WETHEARTWOOD

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