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Àΰø¸²ÀÇ Àӷɺ¯È¿¡ µû¸¥ Áö»óºÎ ÇöÁ¸·®°ú ¾çºÐÃàÀû Changes in Aboveground Biomass and Nutrient Accumulation by Stand Age |
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±Û¾´ÀÌ : °ü¸®ÀÚ
³¯Â¥ : 08-05-01 09:45
Á¶È¸ : 10440
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°¿øµµ Áö¹æ À㳪¹« Àΰø¸²ÀÇ Àӷɺ¯È¿¡ µû¸¥ Áö»óºÎ ÇöÁ¸·®°ú ¾çºÐÃàÀû Changes in Aboveground Biomass and Nutrient Accumulation of the Korean-Pine (Pinus koraiensis) Plantation by Stand Age at Kangwondo Province <Çѱ¹ÀÓÇÐȸÁö 87(2):276-285 Jour. Kor. For. Soc. 87(2):276-285 1998> Corresponding author Myong-Jong Yi mjyi@kangwon.ac.kr
°¿ø´ëÇб³ Çмú¸² ³»¿¡¼ ÁöÀ§Áö¼ö°¡ 13.5-14.2ÀÎ ÀÔÁöÁ¶°Ç¿¡¼ »ýÀ°ÇÏ´Â ÀÓ·É 9³â¿¡¼ 66³â±îÁö ÀÓ·ÉÀÌ ¼·Î ´Ù¸¥ À㳪¹« Àΰø½ÄÀ縲¿¡ ´ëÇÏ¿© Áö»óºÎ ÇöÁ¸·®°ú ¾çºÐ·® (Áú¼Ò, ÀÎ, Ä®·ý, Ä®½·, ¸¶±×³×½·)À» ÃøÁ¤Çß´Ù. Áö»óºÎ À㳪¹«ÀÇ ÇöÁ¸·®À» ÃßÁ¤Çϱâ À§ÇÏ¿© ÁÙ±â, °¡Áö ¹× ÀÙÀÇ °ÇÁ¶Áß·®°ú ÈÞ°íÁ÷°æ °£ÀÇ »ó´ë¼ºÀå½Ä (logY= alogX+b, Y´Â °¢ ±â°üÀÇ °ÇÁ¶Áß·®, X´Â Èä°íÁ÷°æ)À» ±¸ÇÏ¿´´Ù. Áö»óºÎ À㳪¹«ÀÇ Àüü ÇöÁ¸·®Àº 9³â»ý ÀÓºÐÀÇ 21.8t/ha¿¡¼ 66³â»ý ÀÓºÐÀº 130.8t/ha·Î ÀÓ·ÉÀÌ ³ô¾ÆÁü¿¡ µû¶ó Áõ°¡ÇÏ¿´´Ù. Áö»óºÎ À㳪¹« ÇöÁ¸·®Àº °¡ÁöÀÇ ÇöÁ¸·®º¸´Ù ÀÙÀÇ ÇöÁ¸·®ÀÌ ´õ Å« 9³â»ý ÀÓºÐÀ» Á¦¿ÜÇϸé, ÁÙ±â>°¡Áö>ÀÙÀÇ ¼ø¼·Î ºÐ¹èµÇ¾î ÀÖ¾ú´Ù. ÀÓ·ÉÀÌ ³ô¾ÆÁü¿¡ µû¶ó ÁÙ±âÀÇ ÇöÁ¸·®Àº »ó´ëÀûÀ¸·Î Áõ°¡ÇÏ¿´´Ù. ÇÏÃþ½Ä»ýÀÇ ÇöÁ¸·®Àº ¸ñº»°ú Ãʺ»ÀÌ °¢°¢ 0.4~3.9t/ha ¹× 0.05~0.6t/ha¿´À¸¸ç, À㳪¹«¸²ÀÇ ÀÓ·É°úÀÇ °ü°è´Â º¸ÀÌÁö ¾Ê¾Ò´Ù. °í»ç¸ñÁúºÎ À¯±â¹°°ú ÀÓ»óÀ¯±â¹°Àº °¢°¢ 0.59~1.54t/ha ¹× 6.0~21.63t/ha¿´´Ù. À㳪¹« Áö»óºÎÀÇ ¾çºÐÃàÀûÀº ÀÓ·ÉÀÌ ³ô¾ÆÁü¿¡ µû¶ó Áõ°¡ÇÏ¿´À¸¸ç, Áú¼Ò>Ä®½·>Ä®·ý>ÀÎ>¸¶±×³×½·ÀÇ ¼ø¼¿´´Ù. Æò±Õ ¾çºÐÃàÀûÀ²Àº ÀÓºÐÀÇ Ãʱ⠹ߴްúÁ¤¿¡¼ °¡Àå ÄÇÀ¸¸ç ÀÓ·ÉÀÇ Áõ°¡¿Í ÇÔ²² ³·¾ÆÁ³´Ù. °¢ ±â°üº°·Î ¾ÓºÐ³óµµ´Â ÀÙ>°¡Áö>Áٱ⠼ø¼¿´´Ù. ÀÓ»óÀ¯±â¹°°ú ±¤Áú Åä¾çÀÇ ¾çºÐÇÔ·®Àº ÀÓ·É°úÀÇ »ó°üÀÌ ¾ø¾ú´Ù. ÇÏÃþÀÇ ½Ä»ýÀº À㳪¹«¸²ÀÇ ¾çºÐ ÀúÀå¼Ò·Î¼ÀÇ ¿ªÇÒÀÌ ÀÛ¾Ò´Ù. ±¤ÁúÅä¾çÀº À㳪¹«¸²ÀÇ °è³» ¿©·¯ ±¸¼º¿ä¼Ò Áß¿¡¼ °¡Àå Å« ¾çºÐ¿øÀ̾ú´Ù
The aboveground biomass and nutrient content (N, P, K, Ca and Mg) of Pinus koraiensis, aged 9, 22, 34, 46, 66 years, were measured in the School Forests of Kangwon National University. The site index of the stands ranged from 13.5 to 1.4.2. Allometric equations (logY=alogX+b, where Y and X are oven-dry mass and DBH, respectively) relating dry weights of stem, branches and needles to diameter at breast height (BBH) were developed to estimate aboveground tree biomass. Total above ground tree biomass increased with stand age from 21.8t/ha in the 9-year-old stand to 130t/ha in the 66-year-old stand. Aboveground biomass was allocated as follows: stem> branch> foliage, except for the 9-rear-old stand which had a greater proportion of foliage biomass than branch biomass. As stand age increased, an increasing proportion of annual biomass increment was allocated to stems. The aboveground biomass of shrubs and herbs ranged from 0.4 to 3.9t/ha and from 0.05 to 0.6t/ha, respectively. No relationship was found between aboveground understory biomass and stand age. The mass of woody debris and forest floor varied between 0.59 to 1.54t/ha and 6.0 to 21.63t/ha, respectively. Nutrient accumulation in aboveground tree biomass increased with stand age and was in the order of N>Ca>K>P>Mg. Average rates of nutrients accumulation in biomass were greatest in the early stages of stand development, and less marked as stand aged. The nutrient concentrations in different tree components decreased in the order of needle> branch> stem. There were no detectable trends in nutrient content of the forest floor and mineral soils with stand age. Understory vegetation contributed little to the nutrient pool of these Korean white pine ecosystems. Mineral soil contained the greatest proportion of nutrient capital of the various ecosystem compartments.
Key words: Pinus koraiensis, nutrient concentration, aboveground biomass, nutrient accumulation, understory vegetation, mineral soil
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