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Ãʱâ Á¤±âÆò±Õ»ýÀå°ú ¹Ì±âÈÄ¿ÍÀÇ °ü°è Relation between Periodic Annual Increment and Local Climatic Conditions |
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±Û¾´ÀÌ : °ü¸®ÀÚ
³¯Â¥ : 08-04-24 18:16
Á¶È¸ : 10065
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Áö¿ªº° À㳪¹«ÀÇ Ãʱâ»ýÀå Ư¼º°ú ¹Ì±âÈÄÀÇ ¿µÇâ -Á¤±âÆò±Õ»ýÀå°ú ¹Ì±âÈÄ¿ÍÀÇ °ü°è- Characteristics of the Early Growth for Korean White Pine (Pinus koraiensis) and Effects of Local Climatic Conditions on the Growth - Relation between Periodic Annual Increment and Local Climatic Conditions - <Çѱ¹ÀÓÇÐȸÁö 88(1):73-85 Jour. Kor. For. Soc. 88(1):73-85 1999> Correspondent Man-Yong Shin (Dept. of For. Resources, Kookmin Univ., 86-1 Jeongneung-Dong, Songbuk-Gu, Seoul 136-702, Korea)
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This study was conducted to reveal the characteristics of the early growth by locality for Korean white pine planted in Gapyung and Kwangju, Kyunggi-Do and Youngdong, Choongchungbuk-Do. The effects of local climatic conditions as one of environmental factors on the growth were also analyzed. For this, several stand variables such as number of trees survived, mean DBH, mean height, basal area per hectare, and volume per hectare by stand age were measured and summarized for each locality. Based on these statistics, periodic annual increments for 8 years from stand age 10 to 18 were calculated for each of stand variables. A topoclimatological technique, for the estimation of local climatic conditions, which makes use of empirical relationships between the topography and the weather in study areas was applied to produce reasonable estimates of monthly mean, maximum, minimum temperatures. relative humidity, precipitation, and hours of sunshine over remote land area where routine observations are rare. From these monthly estimates, 17 weather variables such as warmth index, coldness index, index of aridity etc. which affect the tree growth, were computed for each locality. The periodic annual increments were then correlated with and regressed on the weather variables to examine effects of local weather conditions on the growth. Gapyung area provided the best conditions for the growth of Korean white pine in the early stage and Kwangju area ranked the second. On the other hand, the growth pattern in Youngdong ranked the last overall as expected. It is also found that the local growth patterns of Korean white pine in juvenile stage were affected by typical weather conditions. The conditions such as low temperature, high relative humidity, and large amount of precipitation provide favorable environment for the growth of Korean white pine. Especially, the diameter growth, basal area growth, and volume growth are mainly influenced by the amount of precipitation. However. it is proved that the height growth is affected by both the precipitation and temperature.
Key words: Korean white pine, periodic annual increment, local weather conditions, topoclimatological technique
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