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한국생태학회 / v.27, no.3, 2004년, pp.155-159 
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상수리나무림 임상에 공급한 무기질소가 토양호흡에 미치는 영향
( Effects of Nitrogen Addition on Soil Respiration ) |
| 최주섭;문형태; 평택고등학교;공주대학교 자연과학대학 생명과학과;
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| 초 록 |
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| In order to gain a better understanding of how forests participate in the cycling of carbon, effects of nitrogen addition on soil respiration were investigated on the oak forest in Kongju, Korea. Study site was divided into control, treatment f and treatment 2 plots, with 5 replication in each plot. In each replicate of treatment 1 and treatment 2 were fertilized with ammonium nitrate (NH$_4$NO$_3$), 30 g/$m^2$ and 60 g/$m^2$, respectively. Soil respiration, soil temperature, ammonium-N and nitrate-N were measured during the experimental period. Ammonium-N and nitrate-N in Ta were higher than those in control and T$_1$. Ammonium-N and nitrate-N in top-soil and sub-soil decreased sharply in August after bi9 rainfall in July in T$_1$ and T$_2$, however, those in control plot increased. Soil respiration in T$_2$ Plot showed consistently higher than those in control and T$_1$ until the end of July. However, soil respiration was similar among the control, T$_1$ and T$_2$ in mid-August and September The amount of Co$_2$ released from soil respiration in control, T$_1$ and T$_2$ in mid-August was 8.0$pm$0.4, 9.3$pm$0.6 and 10.2$pm$0.5 $mu$mol$^{-1}$ ㆍm$^{-2}$ ㆍs$^{-1}$ , respectively. However, those in control, T$_1$ and T$_2$in mid-August was 13.0$pm$0.4, 13.5$pm$0.5, 13.3$pm$0.6 $mu$mol$^{-1}$ ㆍm$^{-2}$ ㆍ$^{-1}$ , respectively. The results suggest that nitrogen addition in this oak forest has a positive effect on soil respiration. |
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| 키워드 |
| 무기질소 공급;토양호흡;NH$^{}$ +/$_4$-N;NO$^{[-10]}$ $_3$-N;Ammonium-N;Nitrate-N;Nitrogen addition;Soil respiration; |
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The Korean Journal of Ecology / v.27, no.3, 2004년, pp.155-159
한국생태학회
ISSN : 1225-0317
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922361657)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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