Contribution of soil moisture to seasonal and annual variations of soil CO2 efflux in a humid cool-temperate oak-birch forest in central Japan
详细信息 查看全文
- 作者：Ayaka Wenhong Kishimoto-Mo ; Seiichiro Yonemura ; Masaki Uchida…
- 关键词：Automated soil respiration chambers ; Empirical model ; Open ; flow IRGA method ; Rainfall ; Soil respiration
- 刊名：Ecological Research
- 出版年：2015
- 出版时间：March 2015
- 年：2015
- 卷：30
- 期：2
- 页码：311-325
- 全文大小：2,999 KB
- 参考文献：1. Bekku, Y, Koizumi, H, Oikawa, T, Iwaki, H (1997) Examination of four methods for measuring soil respiration. Appl Soil Ecol 5: pp. 247-254 CrossRef
2. Curiel Yuste, J, Janssens, IA, Ceulemans, R (2005) Calibration and validation of an empirical approach to model soil CO2 efflux in a deciduous forest. Biogeochem 73: pp. 209-230 CrossRef
3. Curiel Yuste, J, Baldocchi, DD, Gershenson, A, Goldstein, A, Misson, L, Wong, S (2007) Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture. Glob Change Biol 13: pp. 1-18 CrossRef
4. Davidson, EA, Janssens, IA (2006) Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature 440: pp. 165-173 CrossRef
5. Davidson, EA, Belk, E, Boone, RD (1998) Soil water content and temperature as independent or confounded factors controlling soil respiration in a temperate mixed hardwood forest. Glob Change Biol 4: pp. 217-227 CrossRef
6. Davidson, EA, Savage, K, Bolstad, P, Clark, DA, Curtis, PS, Ellsworth, DS, Hanson, PJ, Law, BE, Luo, Y, Pregitzer, KS, Randolph, JC, Zak, D (2002) Belowground carbon allocation in forests estimated from litterfall and IRGA-based soil respiration measurements. Agri For Meteorol 113: pp. 39-51 CrossRef
7. Davidson, EA, Janssens, IA, Luo, Y (2006) On the variability of respiration in terrestrial ecosystems: moving beyond Q10. Glob Change Biol 12: pp. 154-164 CrossRef
8. Davidson, EA, Richardson, AD, Savage, KE, Hollinger, DY (2006) A distinct season pattern of the ratio of soil respiration to total ecosystem respiration in a spruce-dominated forest. Glob Change Biol 12: pp. 230-239 CrossRef
9. Fang, J, Guo, Z, Hu, H, Kato, T, Muraoka, H, Son, Y (2014) Forest biomass carbon sinks in East Asia, with special reference to the relative contributions of forest expansion and forest growth. Glob Chang Biol 20: pp. 2019-2030 CrossRef
10. Hashimoto, T, Miura, S, Ishizuka, S (2009) Temperature controls temporal variation in soil CO2 efflux in a secondary beech forest in Appi Highlands, Japan. J For Res 14: pp. 44-50 CrossRef
11. Hashimoto S, Morishita T, Sakata T, Ishizuka S (2011) Increasing trends of soil greenhouse gas fluxes in Japanese forests from 1980 to 2009. Sci Rep 1:116. doi:10.1038/srep00116
12. IPCC (2013) Climate Change 2013: The Physical Science Basis. http://www.buildingclimatesolutions.org/view/article/524b2c2f0cf264abcd86106a
13. Ito, A, Saitoh, TM, Sasai, T (2014) Synergies between observational and modeling studies at the Takayama site: toward a better understanding of processes in terrestrial ecosystems. Ecol Res.
14. Jia, S, Akiyama, T, Mo, W, Inatomi, M, Koizumi, H (2003) Temporal and spatial variability of soil respiration in a cool-temperate broad-leaved forest. 1. Measurement of spatial variance and factor analysis. Jpn J Ecol 53: pp. 13-22
15. Joo, SJ, Park, SU, Park, MS, Lee, CS (2012) Estimation of soil respiration using automated chamber systems in an oak (Quercus mongolica) forest at the Nam-San site in Seoul, Korea. Sci Total Environ 416: pp. 400-409 CrossRef
16. Kim, D-G, Mu, S, Kang, S, Lee, D (2010) Factors controlling soil CO2 effluxes and the effects of rewetting on effluxes in adjacent deciduous, coniferous, and mixed forests in Korea. Soil Biol Biochem 42: pp. 576-585 soilbio.2009.12.005" target="_blank" title="It opens in new window">Cr - 刊物主题：Ecology; Plant Sciences; Zoology; Evolutionary Biology; Behavioural Sciences; Forestry;
- 出版者：Springer Japan
- ISSN：1440-1703
文摘
To quantify the contribution of soil moisture to seasonal and annual variations in soil CO2 efflux in a cool-humid deciduous broadleaf forest, we measured soil CO2 efflux during the snow-free seasons of 2005-008 using an automated chamber technique. This worked much better than manual chambers employing the same?steady-state through-flow method. Soil CO2 efflux (g?C?m??period?) during the snow-free season ranged from 979.8?±?49.0 in 2005 to 1131.2?±?56.6 in 2008 with a coefficient variation of 6.4?% among the 4?years. We established two-parameter (soil temperature and moisture) empirical models, finding that while soil temperature and moisture explained 69-6?% and 10-3?% of the temporal variability, respectively. Soil moisture had the effect of modifying the temporal variability of soil CO2 efflux, particularly during summer and early fall after episodic rainfall events; greater soil moisture enhanced soil CO2 efflux in the surface soil layers. High soil moisture conditions did not suppress soil CO2 efflux, leading to a positive correlation between normalized soil CO2 efflux (ratio of the measured to predicted efflux using a temperature-dependent Q 10 function) and soil moisture. Therefore, enhanced daily soil CO2 efflux following heavy rainfall events could significantly reduce net ecosystem exchange (i.e. daily net ecosystem production) by 32?% on some days. Our results highlight the importance of precisely estimating the response of soil CO2 efflux to changes in soil moisture following rainfall events when modeling seasonal carbon dynamics in response to climate change, even in humid monsoon regions.