Evaluating Soil Respiration as Indicator of Heavy Metal Pollution in Agricultural Field

다국어 초록 (Multilingual Abstract)

Agricultural field near at the abandoned metal mine and industrial area has a high possibility to be polluted byheavy metals. However, concern about chemical properties including heavy metal concentration has beenincreased and biological properties such as soil respiration has been minimal in heavy metal polluted field.
Therefore, main objective of this research was to evaluate soil respiration as an indicator of heavy metalpollution in agricultural field. Total of 60 sampling sites including each 30 sites of abandoned metal mine andindustrial area were selected and heavy metal concentration, soil respiration, and chemical properties weremeasured. Results showed that heavy metal concentration in metal mine area was ranged Cu: 6.21~85.23 mgkg-1, Pb: 23.84~1,044.72 mg kg-1, As: 1.88~691.44 mg kg-1, Zn: 18.72~527.55 mg kg-1, Cd: 0.58~4.27 mgkg-1, and Cu: 0.29~30.62 mg kg-1, Pb: 4.41~19.77 mg kg-1, As: 2.23~11.76 mg kg-1, Zn 39.98~109.59 mg kg-1,Cd 0.29~0.57 mg kg-1 for industrial area respectively. While no sampling site was exceed the threshold valueof each heavy metals in industrial field, metal mine area was highly polluted with Pb, As, Zn, and Cd. Soilrespiration in the metal mine and industrial area was ranged 12.05~299.80 mg O2 kg-1 and 27.68~330.94 mgO2 kg-1, respectively. Correlation analysis between heavy metal concentration in soil and soil respirationshowed that negative correlation was observed in metal mine area while no correlation was observed inindustrial area. This result might indicate that as heavy metal concentration was increased, microbial activityin soil was decreased resulting decrease of soil respiration rate. Overall, soil respiration can be used asindicator of heavy metal pollution in soil and more biological properties need to be evaluated to betterunderstand heavy metal pollution in soil.

참고문헌 (Reference)

1 김좌관, "풍원광산 지역의 토양 및 농작물 중금속 오염" 한국지반환경공학회 11 (11): 5-11, 2010

2 문성기, "폐광산 주변 토양의 Zn, Cu, Pb의 함량 및 식물체내 축적" 한국생명과학회 15 (15): 826-833, 2005

3 최진원, "폐광산 주변 토양 중금속 오염노출농도 우려기준과 위해성 비교 연구" 대한토목학회 32 (32): 261-266, 2012

4 김주희, "중금속 오염 농경지 토양의 토양질 평가에 관한 연구" 한국토양비료학회 45 (45): 1237-1241, 2012

5 이규진, "잎갈나무조림지의 벌목지와 비벌목지의 토양호흡에 관한 연구" 한국생명과학회 20 (20): 1353-1357, 2010

6 오세진, "석탄회를 이용한 석탄광산 폐기물의 안정화 효율성 평가: 컬럼 시험" 한국토양비료학회 44 (44): 1071-1079, 2011

7 이재만, "사과 과수원에서의 토양 CO2 발생량 평가" 한국농림기상학회 11 (11): 52-60, 2009

8 정명채, "국내 휴폐금속광산의 환경오염 평가 및 향후 관리 방안" 한국자원공학회 43 (43): 383-394, 2006

9 임태용, "국내 두 폐금속 광산의 중금속오염 인체위해성평가 비교" 대한환경공학회 37 (37): 619-630, 2015

10 Yang, J. E., "Fractionation and pollution index of heavy metals in the Sangdong tungsten mine tailings" 34 (34): 33-41, 2001

11 김대복, "Evaluating Ecotoxicity of Surface Water and Soil Adjacent to Abandoned Metal Mines with Daphnia magna and Eisenia fetida" 한국토양비료학회 49 (49): 81-86, 2016

12 김유철, "Effect of Chemical Amendments on Soil Biological Quality in Heavy Metal Contaminated Agricultural Field" 한국토양비료학회 48 (48): 146-152, 2015