한국농림기상학회지, 제 12권 제4호(2010) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 12, No. 4, (2010), pp. 264~276
DOI: 10.5532/KJAFM.2010.12.4.264
ⓒ Author(s) 2014. CC Attribution 3.0 License.

토양호흡의 측정과 국내 연구 현황에 대한 고찰

이은혜, 임종환(1), 이재석
건국대학교 생명과학과, (1)산림과학원 산림생태과

(2010년 08월 25일 접수; 2010년 09월 24일 수정; 2010년 10월 05일 수락)

A Review on Soil Respiration Measurement
and Its Application in Korea

Eun-Hye Lee, Jong-Hwan Lim(1), Jae-Seok Lee
Department of Biological Sciences, College of Science, Konkuk University, Seoul 143-701, Korea
(1)Division of Forest Ecology, Korea Forest Research Institute, Seoul 130-712, Korea

(Received August 25, 2010; Revised September 24, 2010; Accepted October 05, 2010)

The objectives of this study were to introduce the methods of soil respiration measurement, to review soil respiration studies conducted in Korea, and to suggest potential issues generated from using various methods for soil respiration measurement. According to the measurement principles, the methods of soil respiration measurements are classified as: alkali absorption method (AA), closed chamber method (CC), closed dynamic chamber method (CDC), and open flow method (OF). Based on the litereaure review on soil respiration studies in Korea, the CDC method was mostly used by the researchers (62%), followed by the AA (17%), OF (13%) and CC (8%) methods. Along with these methods, various instruments were used such as LI-6400-09, EGM-3, EGM-4, and automatic soil respiration chamber. Most of the soil respiration measurements were carried out in forest ecosystems and the reported soil respiration showed a wide range of variations from 130 to 900 mg CO2m-2h-1. Continuous monitoring of soil respiration with minimal disturbance and the potential inconsistency in measurements are still the challenges facing the researchers, causing a paucity in quality datasets of sufficient quantity. Few attempts of intercomparison among different methods hinder the data users from synthetic analysis and assessment of the collected datasets. In order to better estimate soil carbon budget and understand their exchange mechanisms in key ecosystems of Korea, it is necessary to measure soil respiration at various plant functional types, soils, and climate conditions over a decadal time scale along with the study on the partitioning of soil respiration into autotrophic and heteorotrophic components.

Keyword: Soil respiration, Chamber method



본 연구는 토양호흡 측정방법을 소개하고 국내에서 관측된 토양호흡 자료를 고찰하고, 토양호흡 관측 자료 비교시 발생하는 문제점을 정리하였다. 토양호흡측정 방법은 측정원리에 따라 알칼리흡습법, 밀폐상법, 밀폐상역학법, 통기법으로 분류된다. 국내 토양호흡연구를 종합분석한 결과, 국내의 생태계에 적용 된 토양 호흡 측정 방법은 밀폐상역학법(62%), 알칼리흡습법(17%), 통기법(13%), 밀폐상법(8%)이 이용되었고 이러한 방법에 사용된 기기로는 LI-6400-09, EGM-3,EGM-4, 자동토양호흡측정기 등이 있다. 또한, 국내 토양호흡은 대부분 산림 생태계에 국한되어 관측이 이
루어졌으며 관측된 평균 토양호흡은 130~900mg CO2m-2h-1 범위였다. 그러나 국내 토양호흡 관측이 산발적·불연속적으로 이루어져 축적된 자료가 매우 빈약한 실정이며, 토양호흡의 상호 비교 및 정량화를 위해 측정방법간의 비교 및 오차에 대한 검증된 연구가 없어 관측된 토양호흡값의 상호비교가 어려운 실정이다. 이로 인해 한반도 생태계의 탄소수지의 정확한 예측자료를 생산하기 위한 기초 자료로서의 가치를 저하시키고 있다. 한반도 탄소순환 메커니즘의 이해를 위해서는 보다 다양한 생태계의 토양호흡 관측이 시급히 이루어져야하며 토양호흡을 조절하는 환경요인과 상호작용에 관한 연구, 다양한 기상 조건을 포함하는 토양호흡 연구가 절실히 요구된다. 더불어 토양호흡의 발생원 별 구분에 대한 국내의 연구결과는 대단히 미약한수준으로 토양호흡의 메카니즘이해와 정확한 탄소수지 이해를 위해 발생원 별 토양호흡량 정량에 대한 연구가 이루어져야한다.


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