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생태계 탄소순환 이해를 위한 국내 토양호흡 연구의 고찰
이재호 ( Jae Ho Lee ),이준석 ( Jun Seok Yi ),전영문 ( Young Moon Chun ),채남이 ( Nam Yi Chae ),이재석 ( Jae Seok Lee ) 한국하천호수학회 2013 생태와 환경 Vol.46 No.2
In territorial ecosystem, soil has stored considerable amount of carbon, and it is vulnerable to weakness release much of the carbon to atmosphere. In this study, we have been effort realization and discussion to the error between inter-instruments and measurement methods, time and special variations, gap filling and separation from each source included in soil respiration, used to collect soil respiration data in various ecosystems in Korea. In conclusion, it have to collect calibration data throughout comparison test between methods and instruments because accumulated data from past and accumulating data in present did not calibrated. In predicting change of soil carbon dynamic using the model method, it needs important data such as longterm and short-term data, artificial handling data of major factor, data from various ecosystem, soil texture, soil depth etc. In company with, we should collect highly qualified data through deep consideration of present problems.
계룡산 국립공원 산림생태계의 탄소축적량 산정에 관한 연구
장지혜 ( Ji Hye Jang ),이준석 ( Joon Seok Yi ),정지선 ( Ji Sun Jeong ),송태영 ( Tae Young Song ),이경재 ( Kyeng Jae Lee ),서상욱 ( Sang Uk Suh ),이재석 ( Jae Seok Lee ) 한국하천호수학회 2014 생태와 환경 Vol.47 No.4
Understanding and quantifying of carbon storage in ecosystem is very important factor for predicting change of global carbon cycle under the global climate change. We estimated total ecosystem carbon in Gyeryongsan National Park with naturally well preserved ecosystem in Korea. Vegetation of Gyeryongsan National Park was classified with mainly four communities with Quercus mongolica (1,743.5 ha, 38.0%), Quercus variabilis (1,174.0 ha, 25.6%), Quercus serrata (971.9 ha, 21.2%), Pinus densiflora (695.2 ha, 15.2%). Biomass and soil carbons were calculated from biomass allometric equations based on the DBH and carbon contents of soil and litter collected in quadrat in each community. The tree biomass carbon was in Quercus variabilis (130.1 tCha-1), Pinus densiflora (111.1 tCha-1), Quercus mongolica (76.2 tCha-1), Quercus serrata (39.0 tCha-1). Soil carbon storage was in Quercus mongolica (159.7 tCha-1), Quercus serrata (121.0 tCha-1), Pinus densiflora (110.5 tCha-1), Quercus variabilis (90.8 tCha-1). Ecosystem carbon storage was Pinus densiflora (239.9 tCha-1), Quercus mongolica (235.9 tCha-1), Quercus variabilis (226.0 tCha-1), Quercus serrata (165.9 tCha-1), total amount was 867.7 tCha-1. The area of each vegetation carbon storage was Quercus mongolica (411,200 tCha-1), Quercus variabilis (265,300 tCha-1), Pinus densiflora (166,800 tCha-1), Quercus serrata (161,200 tCha-1) and the total ecosystem carbon amount estimated 1,045,400 tCha-1 at Gyeryongsan National Park. Theses results indicate that different in naturally well preserved ecosystem.
정지선 ( Ji Sun Jung ),이준석 ( Joon Seok Yi ),이재호 ( Jae Ho Lee ),심교문 ( Kyo Moon Shim ),이재석 ( Jae Seok Lee ) 한국환경생물학회 2014 환경생물 : 환경생물학회지 Vol.32 No.4
생태계가 담당하는 기능의 크기와 그 변화에 관여하는 환경요인과의 상호관계성 도출은 생태계의 과학적속성 이해에 필수불가결한 요소이다. 본 연구는 수변의특이적 환경조건에 의해 주기적인 교란과 토양 퇴적환경이 발달하는 하천 수변지역에 형성되어 있는 하천식생에 대해 토양탄소축적량을 정량하고 그러한 식생의 토양으로부터 방출되는 토양호흡과 환경요소 자료를 수집하여 각 요소의 상호간의 관계성을 분석하였다. 남한강 여주지역에서 물억새, 달뿌리풀, 버드나무에서 토양호흡은 2009년 8월부터 11월까지 각 군락에서 수집하였으며, 토양탄소축적량은 각 군락의 3지점에서 수집하였다. 토양호흡은 지온변화에 민감하게 반응하였으며, 가장 높게 관찰되는 8월의 토양호흡값은 달뿌리풀군락, 물억새군락, 버드나무군락에서 각각 1,539 mg CO2 m-2, 1,200mg CO2 m-2, 1,215 mg CO2 m-2으로 측정되었다. 이러한 자료를 바탕으로 산정한 연간 토양호흡량은 달뿌리풀군락, 물억새군락, 버드나무군락에서 각각 19.8 tCha-1 yr-1,30.1 tCha-1 yr-1, 22.0 tCha-1 yr-1으로 산정되어 물억새군락의 토양에 가장 높은 탄소가 축적된 것으로 평가되었다. 한편, 토양탄소축적량 (리터층+토양층)은 달뿌리풀군락, 물억새군락, 버드나무군락에서 각각 40.6 tCha-1 (1.9+38.7), 46.9 tCha-1 (43.0+3.9), 31.2 tCha-1 (28.9+2.3)으로 물억새군락의 토양에 가장 많은 탄소가 축적된 것으로 조사되었으며 이는 물억새군락의 높은 지상부 생산성에서 기인하는 것으로 판단된다. Various ecosystem carry out fundamental function of material circulation and energy flow through interrelationship with many environmental factors. Therefore, it is crucial to scientifically understand the value of nature to deduce correlation between environmental factor and change of ecosystem function. In this study, we determined the accumulated ecosystem carbon and characteristics of soil respiration on grassland vegetation in Namahangang basin in Namhangang Basin. It was found that the rate of soil respiration was highly correlated with the soil temperature in all communities. The measured soil respiration rates were 1,539 mgCO2 m-2 h-1, 1,200 mgCO2 m-2 h-1, 1,215 mgCO2 m-2 h-1 in Miscanthus sacchariflorus, Phragmites japonica, Salix koreensis communities, respectively. Also, carbon quantities accumulated in litter and soil layers were 40.6 tCha-1 (1.9+38.7), 46.9 tCha-1 (43.0+3.9), 31.2 tCha-1 (28.9+2.3) in M. sacchariflorus, P. japonica, S. koreensis communities, respectively.