2007Unpublished venueRequires access

Directive breeding of Larix olgensis for large dimension timber

WU Yao-xian

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Abstract

The trial on directive breeding of Larix olgensis for large dimension timber shows following results: After thinning 8 years to the stand at 25-yr-old,the most growth increment has been gained while reserve density at 525trees·hm-2 and 600 trees·hm-2,mean annual growth in diameter and in volume are 0.5-0.6 cm㎝ and 7.6 m3·hm-2,respectively.It concluded that the initial density should be 2 500 trees·hm-2 or 3 300 trees·hm-2 for the large dimension timber of Larix olgensis.

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The trial on directive breeding of Larix olgensis for large dimension timber shows following results: After thinning 8 years to the stand at 25-yr-old,the most growth increment has been gained while reserve density at 525trees·hm-2 and 600 trees·hm-2,mean annual growth in diameter and in volume are 0.5-0.6 cm㎝ and 7.6 m3·hm-2,respectively.It concluded that the initial density should be 2 500 trees·hm-2 or 3 300 trees·hm-2 for the large dimension timber of Larix olgensis.

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Available abstract

The trial on directive breeding of Larix olgensis for large dimension timber shows following results: After thinning 8 years to the stand at 25-yr-old,the most growth increment has been gained while reserve density at 525trees·hm-2 and 600 trees·hm-2,mean annual growth in diameter and in volume are 0.5-0.6 cm㎝ and 7.6 m3·hm-2,respectively.It concluded that the initial density should be 2 500 trees·hm-2 or 3 300 trees·hm-2 for the large dimension timber of Larix olgensis.

Key concepts: Forestry, Dimension (graph theory), Volume (thermodynamics), Thinning, Environmental science, Biology, Agroforestry, Mathematics

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