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  Development of Growth and Yield Models »ýÀå ¸ðµ¨°ú ¼öÈ® ¸ðµ¨ °³¹ß
  ±Û¾´ÀÌ : °ü¸®ÀÚ     ³¯Â¥ : 08-04-10 09:07     Á¶È¸ : 10118    
The Development of Growth and Yield Models for the Natural Broadleaved-Korean Pine Forests in Northeast China Áß±¹ ºÏµ¿ºÎ Áö¹æ È°¿±¼ö-À㳪¹« õ¿¬¸²ÀÇ »ýÀå ¸ðµ¨°ú ¼öÈ® ¸ðµ¨ °³¹ß <Jour. Kor. For. Soc. 90(5):650-662 Çѱ¹ÀÓÇÐȸÁö 90(5):650-662 2001> Corresponding author fengrili@hotmail.com

The growth and yield models for five different kinds of natural forest types were systematically developed in the natural broadleaved-Korean pine forests in Northeast China. The data were collected from 359 temporary plots and 58 permanent plots with area ranged from 0.06 ha to 1.0 ha, ranging in stand age from 43 to 364 years. The Site Class Index (SCI) was introduced to evaluate site quality and the Crown Competition Factor (CCF) was selected as a measure of stand density for the mixed natural forest. The Chapman-Richards function was adopted to develop SCI equation and height-diameter curve. The Schumacher growth function was selected as base model to develop the DBH, basal area, and stand volume growth models by using re-parameterized method. In modeling mean DBH  and basal area growth, it was found that the asymptotic parameter A of Schumacher function was exponentially related to site quality (SCI) and stand density (CCF). The rate parameter k was related to stand density and it was independent of SCI. Several validation measures for predicted stand variables were evaluated in the growth and yield models using independent data sets. The results indicated that relative mean errors (RME) in predicted stand attributes were less than ¡¾5% and the estimated precision values of the stand variables were all greater  than 95%.
Key words: Pinus koraiensis, natural mixed forests, Schumacher growth function, Chapman-Richards function, whole stand models, site class index (SCI), crown competition factor (CCF)
Áß±¹ µ¿ºÏºÎ È°¿±¼ö-À㳪¹« õ¿¬¸²ÀÇ ´Ù¼¸ °¡Áö ÀÓÇü¿¡ ´ëÇÏ¿© ÀÓºÐÀÇ »ýÀå ¸ðµ¨°ú ¼öÈ® ¸ðµ¨À» °³¹ßÇϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. ¿¬±¸ ÀÚ·á´Â 43³â»ýºÎÅÍ 364³â»ý ¹üÀ§¿¡ À̸£´Â ÀӺп¡¼­ 0.06ha¿¡¼­ 1.0ha Å©±âÀÇ 359°³ Àӽà ǥº»±¸¿Í 58°³ÀÇ ¿µ±¸ Ç¥º»±¸¿¡¼­ ¼öÁýµÇ¾ú´Ù. ÀÔÁöÁ¶°ÇÀ» Æò°¡Çϱâ À§ÇÏ¿© ÁöÀ§±ÞÁö¼ö(Siteo Class Index- SCI)¸¦ µµÀÔÇÏ¿´°í, õ¿¬È¥È¿¸²ÀÇ ÀӺйеµ¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© ¼ö°ü°æÀïÁö¼ö(Crown Competition Factor-  CCF)¸¦ äÅÃÇÏ¿´´Ù. SCI °ø½Ä°ú ¼ö°í-Á÷°æ °î¼± ¸ðµ¨Àº Chapman-Richards ÇÔ¼ö¸¦ ÀÌ¿ëÇÏ¿´°í, Èä°íÁ÷°æ, Èä°í´Ü¸éÀû, ¹× ÀÓºÐÀçÀû ¸ðµ¨ÀÇ °³¹ßÀº SchumacherÀÇ »ýÀåÇÔ¼ö¸¦ ±âº» ¸ðµ¨·Î ¼±Á¤ÇÏ¿´´Ù. Æò±Õ Èä°íÁ÷°æ°ú Èä°í´Ü¸éÀû »ýÀå ¸ðµ¨¿¡¼­ Schumacher ÇÔ¼öÀÇ Á¡±Ù¸Å°³º¯¼ö A´Â ÀÔÁöÁ¶°Ç(SCI)°ú ÀӺйеµ(CCF)¿Í »ó°ü°ü°è°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ºñÀ²¸Å°³º¯¼ö k´Â ÀӺйеµ¿Í °ü°è°¡ ÀÖ¾ú°í ÀÔÁöÁ¶°Ç°ú´Â ¹«°üÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. °³¹ßµÈ »ýÀå ¸ðµ¨°ú ¼öÈ® ¸ðµ¨·Î½á ¿¹ÃøµÈ ÀӺРÁ¦¿øµéÀ» Æò°¡Çϱâ À§ÇÏ¿© º°°³ÀÇ ÀӺРÀڷḦ ÀÌ¿ëÇÏ¿© À¯È¿¼º °ËÁ¤À» ½Ç½ÃÇÏ¿´´Ù. Á¡Á¤ °á°ú, ¿¹ÃøÄ¡ÀÇ »ó´ëÆò±Õ¿ÀÂ÷(RME)´Â ¡¾5% ¹Ì¸¸À¸·Î »êÃâµÇ¾ú°í ÀӺРº¯¼öµéÀÇ Á¤È®µµ´Â ¸ðµÎ 95% ÀÌ»óÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.

   

 
   

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