Comparison of Methods of Measurement of Annual Rings of Trees and Their Application in Forest Researches
Studying of radial growth of the dark-conifer trees species grown in the second layer of the secondary soft leaved forest stands, was made in framework of aim to their reformation in dark-conifer forests. On the basis of comparison of the radial growth diagrams of spruce at the experimental sites an...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Siberian Federal University
2012-03-01
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| Series: | Журнал Сибирского федерального университета: Серия Биология |
| Subjects: | |
| Online Access: | http://elib.sfu-kras.ru/bitstream/2311/3010/1/08_Terinev.pdf |
| Summary: | Studying of radial growth of the dark-conifer trees species grown in the second layer of the secondary soft leaved forest stands, was made in framework of aim to their reformation in dark-conifer forests. On the basis of comparison of the radial growth diagrams of spruce at the experimental sites and at the control site, the year of selective cuttings (accretion cutting) and period of its positive influence which after cutting of final forest stands have played the positive role in formation of middle-age pure spruce forest stands with good tax characteristics were determined. Thus, against a background of positive dynamics of radial growth of dark-conifer trees species the opportunity has appeared with a high degree of probability to allocate the years distinguished by adverse climatic conditions of vegetative period. The beginning of reduction of radial growth of the dark-conifer trees species grown in a lower layer of secondary soft-leaved forest stands, is a signal and one of the bases for carrying out of actions with the purpose of restoration radical dark-conifer forest stands. The methodical part of the article is a comparison different of the measurement methods of the annual rings. Enough exact and less labour-consuming there was a method of definition of width of annual rings on the average radius designed as average from four perpendicular of radial measurements from periphery of the sample of the tree crosswise to its center. |
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| ISSN: | 1997-1389 2313-5530 |