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The Growth Characteristic of the Main Afforestation Species Using the Change of the Annual Ring in Uiseong Area  

Lee Dong-Sup (Department of Forest Resources and Environment, College of Life Science & Natural Resources, Sangju National University)
Kim Dong-Geun (Department of Forest Resources and Environment, College of Life Science & Natural Resources, Sangju National University)
Bea Kwan-Ho (Department of Forest Resources and Environment, College of Life Science & Natural Resources, Sangju National University)
Suh Hyoung-Min (Department of Forest Resources and Environment, College of Life Science & Natural Resources, Sangju National University)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.7, no.4, 2005 , pp. 274-281 More about this Journal
Abstract
The climate of the Uisong Area is wet in the heat of summer and cold and dry in winter, The climate is highly consistent. The typical forest soil of the Uisong Area has an acidity of pH 4.5-5.6. The thickness of soil A layers is thin to an average of 10-20 cm and is a typical brown forest soil type. The growth characteristic of this climate and soil environment is as follows. In the case of Larix leptolepis, it takes 5-9 years to reach 6 cm diameter, The annual growth rate falls off greatly at an age of 17-19 years. The change of annual rings is more apparent on the north slopes compared with the east and northeast slopes. Pinus rigida takes 7-9 years to reach a 6 cm diameter. Annual growth rates of Pinus rigida fall greatly when age reaches 19 years. The change of annual ring growth of Pinus rigida was most apparent in the west and northeast slopes compared with the south and east slopes. In the case of Pinus koraiensis, the change of the annual ring width according to the characteristics of the slope is not important. Pinus koraiensis takes 6 yearsto reach the 6cm diameter, and annual growth rate fell off at age 19 years. In the case of Quercus acutissima, the growth of the valley trees is more stable than for trees grown at the mountain base. Annual growth rate of Quercus autissima fell off 19 years after planting. Ring growth of Robinia pseudo-acasia on northeast slopes appears much like that on northwest slopes. In conclusion, the main silviculture species reaches a 6 cm diameter in 5-9 years of growth, and the annual growth rate begins to fall between years 13 and 19 in the Uisong Area.
Keywords
Dendrochronology; Annual growth rate; Growth characteristic; Uisong Area;
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