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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.11
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- 377 - 387 (11page)
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이 논문의 연구 히스토리 (6)
2018
Decomposition of Pine and Oak Litters as Affected by Their Lignin and Mineral Concentrations
Hyun-Jin Pa
,
k
,
Yong-Se Pa
외 3명
한국토양비료학회지
2018.11
학술저널
Quantity, Chemistry, and Decomposability of Litter of Pine and Oak Grown under Different CO₂, Temperature, and Nitrogen and Water Regimes
Hyun-Jin Pa
,
k
,
Hye-In Yang
외 3명
한국토양비료학회 학술발표회 초록집
2018.05
학술대회자료
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초록· 키워드
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Tree litter chemistry such as lignin, nitrogen (N), calcium (Ca), phosphorus (P) and manganese (Mn) affects litter decomposition and ultimately alters the soil carbon (C) and nutrient dynamics. Specifically, it is well known that the ratio of lignin to N (lignin/N) is a key factor affecting litter decomposition; i.e., litter with low lignin and high N concentrations decomposes fast as compared to litter with high lignin and low N. However, no comprehensive study on the effects of various chemistry as well as lignin/N on the litter decomposition is available. To fill the research gap, this study investigated the variations in the decomposition of pine and oak litters with different chemistry. Split plot design with tree species as a main plot (pine and oak) and litter chemistry (e.g., low vs. high lignin/N) as a sub-plot were laid out in triplicates. Litter samples (1.5 g on the dry basis) were mixed with soils (30 g) and incubated for 45 days, and CO₂ emission was monitored periodically. Litter addition increased the cumulative CO₂ emissions (C<SUB>cum</SUB>) by 16 times over the control soil without litter regardless of litter species and chemistry. The litters applied to the soil were decomposed by more than 20% of the initial during the incubation period. Regardless of species, the C<SUB>cum</SUB> was higher for litter with high lignin/N than with low lignin/N in contradiction to the previous studies. These results suggest that CO₂ emissions from litter decomposition may not be explained solely by the lignin/N of litters but should be deciphered by considering mineral concentration as well as lignin/N. Comparing two pine litter with different chemistry, decomposability of pine litter with high Ca and Mn concentration was greater than the other one due to the role of essential co-factor of Ca and Mn in ligninolytic enzyme. However, for two oak litter with different chemistry, P rather than Ca and Mn found to contribute to litter decomposition. Therefore, this study highlights the necessity of comprehensive understanding of the effects of various chemistry as well as lignin/N of litter on the decomposition of litter.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (57)
참고문헌 신청
Aber, J.D., J.M. Mellilo, and C.A. McClaugherty. 1990. Predicting long-term patterns of mass loss, nitrogen dynamics, and soil organic matter formation from initial fine litter chemistry in temperate forest ecosystems. Can. J. Bot. 68:2201-2208.
Aerts, R. 1997. Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship. Oikos 79:439-449.
Aponte, C., L.V. Garcia, and T. Maronon. 2012. Tree species effect on litter decomposition and nutrient release in Mediterranean oak forests changes over time. Ecosystems 15:1204-1218.
Aponte, C., T. Maranon, and L.V. Garcia. 2010. Microbial C, N and P in soils of Mediterranean oak forest: influence of season, canopy cover and soil depth. Biogeochemistry 101:77-92.
Archibald, F., and B. Roy. 1992. Production of manganic chelates by laccase from the lignin-degrading fungus Trametes (Coriolus) versicolor. Appl. Environ. Microbiol. 58:1496-1499.
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UCI(KEPA) : I410-ECN-0101-2019-523-000169896