Characteristics of Soil Chemical and Microbiological Properties in Abandoned Coal Mine Forest Rehabilitation Areas

폐탄광 산림복구지 토양의 화학적 특성

  • Received : 2010.06.08
  • Accepted : 2010.10.11
  • Published : 2010.10.30

Abstract

The objectives of this study were to investigate soil chemical and microbiological characteristics in Yeongnam, Honam, Chungcheong and Kangwon for forest rehabilitation and management in abandoned coal mine areas. Average soil pH was 5.5 (4.2 ~ 8.1). Average contents of TOC, total N and available P2O5 were 1.1% (0.1 ~ 2.6%), 0.08% (0.02 ~ 0.14%) and 16.1 ppm (3.4 ~ 63.1 ppm), respectively. Average CEC was 3.4 $cmol_c\;kg^{-1}$ and total no. of bacteria1 showed $4.9{\times}10^{12}CFU\;g^{-1}$. According to areas, soil pH was the highest in Kangwon (6.1), and Yeongnam (5.7), Honam (5.3) and Chungcheong (4.7), respectively. TOC and total no. of bacteria showed no difference. Total-N was higher in order of Yeongnam (0.10%) > Chungcheong (0.08%) = Honam (0.07%) > Kangwon (0.06%), while Av. $P_2O_5$ Yeongnam (23.9 ppm) = Chungcheong (24.5 ppm) > Honam (10.9 ppm) = Kangwon (4.9 ppm). Yeongnam showed higher value in CEC (17.5 $cmol_c\;kg^{-1}$) than any other areas. Generally, soil characteristic of Yeongnam was better for vegetation growth than any other areas, while Kangwon was worse. According to elapsed time from forest rehabilitation, patterns of soil pH and CEC showed decrease according to time while TOC and total-N increased. There were no significant differences in Av. $P_2O_5$ and total no. of bacteria. Soil chemical characteristics in abandoned coal mine areas were disadvantageous for vegetation growth in comparison with general forest soils. Therefore, sustainable managements such as fertilization are necessary for good rooting and growth of vegetation.

폐탄광 지역에 대해 올바른 산림복구 방안과 사후관리방안 수립을 위한 기초자료로 활용하기 위해 영남, 호남, 충청, 강원 등 4개 지역의 폐탄광 산림복구지를 대상으로 토양을 채취하여 화학적 특성을 분석하였다. 토양 pH는 평균 5.5 (4.2~8.1)였으며, TOC와 전질소, 유효인산은 각각 1.1% (0.1~2.6), 0.08% (0.02~0.14), 16.1 ppm (3.4~63.1)으로 나타났다. CEC는 13.4 $cmol_c\;kg^{-1}$ (7.5~25.8 $cmol_c\;kg^{-1}$), 총균수는 $4.9{\times}10^{12}CFU\;g^{-1}$ ($6.0{\times}10^5{\sim}2.5{\times}10^{13}CFU\;g^{-1}$)였다. 지역에 따라서는 토양 pH는 강원 (6.1), 영남 (5.7), 호남 (5.3), 충청지역 (4.7) 순으로 높았으며, TOC와 총균수는 차이가 없었다. 전질소는 영남 (0.10%) > 충청 (0.08%), 호남 (0.07%) > 강원지역 (0.06%)이었으며, 유효인산은 영남 (23.9 ppm), 충청 (24.5 ppm) > 호남 (10.9 ppm), 강원지역 (4.9 ppm)이었다. CEC는 영남지역 (17.5 $cmol_c\;kg^{-1}$)이 다른 세 지역보다 높았다. 대체로 영남지역이 다른 지역에 비해 토양 특성이 식물 생육에 유리하였으며, 강원지역이 불리한 것으로 조사되었다. 복구공사 완료 후 시간경과에 따라 토양 화학적 특성을 비교한 결과, 토양 pH와 CEC는 시간에 따라 감소하는 경향을 보였으며, TOC와 전질소는 증가하였다. 유효인산과 총균수는 유의한 차이를 보이지 않았다. 폐탄광 산림복구지 토양의 화학적 특성이 일반 산림토양에 비해 식생 생육에 불리한 것으로 나타났으며, 원활한 식생 활착 및 생육을 위해 시비 등과 같은 지속적인 관리가 필요할 것으로 판단된다.

Keywords

References

  1. Hur, T.C., S.H. Joo, and H.J. Cho. 2009. A Comparison of Soil Physiochemical Properties of the Forest Stands in Young-il Erosion Control District. Jour. Korean. For. Soc. 98:444-450.
  2. Jeong, J.H., K.S. Koo, C.H. Lee, and C.S. Kim. 2002. Physio-Chemical Properties of Korean Forest Soil by Regions. Jour. Korean For. Soc. 91:694-700.
  3. Jeong, J.H., C.S. Kim, K.S. Goo, C.H. Lee, H.G. Won, and J.G. Byun. 2003. Physio-chemecal Properties of Korean Forest Soils by Paren Rocks. Jour. Korean. For. Soc. 92:254-262.
  4. Jung, M.H. and T.H. Kim. 2008. Physical and Chemical Characteristics of Planted Betula platyphylla Seedlings and Soils in abandoned Dongwon and Sewon mine areas. Journal of Mine Reclamation Technology 2:193-201.
  5. Kim, J.G., S.K. Lim, S.H. Lee, Y.M. Yoon, C.H. Lee, and C.Y. Jeong. 1999. Evaluation of Heavy Metal Pollution and Plant Survey around Inactive and Abandoned Mining Areas for Phytoremedation of Heavy Metal Contaminated Soil. Kor. J. Environ. Agric 18:28-34
  6. Lee, S.H. 1981. Studies on Forest Soil in Korea (II). Jour. Korean. For. Soc. 54:25-35.
  7. Min, J.G., E.H. Park, H.S. Moon, and J.K Kim. 2005. Chemical Properties and Heavy Metal Content of Forest Soils around Abandoned Coal Mine Lands in the Mungyeong Area. Journal of KSAFM 7:265-273.
  8. Mummy, D. L., P. D. Stahl, and J. S. Buyer. 2002. Soil microbiological properties 20 years after surface mine reclamation : spatial analysis of reclaimed and undisturbed sites. Soil. Biol. Biochem 34:1717-1725. https://doi.org/10.1016/S0038-0717(02)00158-X
  9. Troug, E. 1947. Soil reaction influence on availability of plant nutrients. Soil Sci. Soc. Amer. Proc. 11:305-308 https://doi.org/10.2136/sssaj1947.036159950011000C0057x
  10. 권현호, 심연식, 이진수, 김태혁, 김정아, 윤석호, 남광수. 2007. 광해의 원인과 방지대책. 광해방지기술 1:5-25
  11. 김태훈, 정진현, 이충화, 구교상, 이원규, 강인애, 김사일. 1991. 토양형별 주요수종의 생장. 임업연구원 연구보고 42: 91-106.
  12. 농촌진흥청. 2000. 토양 및 식물체 분석법.
  13. 양재의, 옥용식, 박용하. 2006. 광산 훼손지역의 생태공학 적 산림복구 방안. 광해방지기술 1:67-75.
  14. 진현오, 이명종, 신영오, 김정제, 전상근. 1994. 삼림토양학. p.325. 향문사.