Korean Journal of Agricultural and Forest Meteorology (한국농림기상학회지)

Korean Society of Agricultural and Forest Meteorology (한국농림기상학회)
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On the Nighttime Correction of CO2 Flux Measured by Eddy Covariance over Temperate Forests in Complex Terrain

복잡지형의 온대산림에서 에디 공분산으로 관측된 CO2 플럭스의 야간 자료 보정에 관하여

  • Received : 2014.09.19
  • Accepted : 2014.09.29
  • Published : 2014.09.30
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Abstract

Nighttime correction of $CO_2$ flux is one of the most important and challenging tasks in eddy covariance measurements over a complex mountainous terrain. In this study, we have scrutinized the quality and the credibility of the $CO_2$ flux datasets which were produced by employing three different methods of nighttime correction, i.e., (1) friction velocity ($u^*$) correction, (2) light response curve (LRC) correction, and (3) advection-based van Gorsel (VG) correction. The whole year datasets used in our analysis were collected at the two KoFlux tower sites (i.e., GDK deciduous forest site at the upper hill and GCK coniferous forest site at the lower hill) located in the valley of Gwangneung National Arboretum in central Korea. The resultant magnitudes and patterns of ecosystem respiration ($R_E$), gross primary productivity (GPP), and net ecosystem exchange (NEE) of $CO_2$ showed marked differences among the datasets produced with three different correction methods, which were also site-specific. The examination from micrometeorological and ecological perspectives suggests that the major cause of some inconsistency seems to be associated with the advection of $CO_2$ along the sloping terrain and the inappropriate selection of the correction data that might have been already affected by advective flows. The comparison with the results from other studies indicated that the overall characteristics of the corrected $CO_2$ fluxes at GDK and GCK (except those with LRC correction) were well within the ranges reported in the literature for various ecosystems in East Asia in similar latitudes. However, our study also implies that there will be always a room for further improvement in the present datasets. Therefore, caution must be exercised for the data users in order to properly use the updated version of datasets through transparent, open and participatory communication with data producers.

복잡지형에서의 에디 공분산 방법을 이용한 플럭스 관측에 있어서 가장 중요하면서도 어려운 문제 중에 하나가 야간 이산화탄소($CO_2$) 플럭스 자료 보정이다. 본 연구에서는 복잡산림지형에 위치한 두 KoFlux 관측지(광릉의 활엽수림과 침엽수림 관측지, GDK와 GCK)의 2009년도 플럭스 타워 자료에 대표적인 야간 자료 보정 방법인 마찰속도 보정 방법, 광 반응 곡선 보정 방법, 이류를 고려한 반 고셀 보정 방법을 적용한 결과를 평가하였다. 계산된 $CO_2$ 플럭스(생태계호흡, 총일차생산, 순생태계교환)는 방법에 따라 그 크기와 계절변동에 차이를 보였는데, 그 차이는 관측지 별로 다르게 나타났다. 각 방법에서 나온 결과들을 선행연구에서 보고된 결과들과의 비교와 함께, 기상학적인 접근뿐만 아니라 생태학적인 접근을 통해 검증하였다. 검증 결과, 이러한 차이의 원인은 야간 자료 보정 과정에서 선별된 자료의 일부가 이미 배수류에 의한 $CO_2$ 이류의 영향을 받았기 때문인 것으로 추측된다. GDK의 광 반응 곡선 방법의 결과를 제외한 나머지 $CO_2$ 플럭스 결과들은 아시아의 다양한 생태계에서 보고된 값들의 범위에 포함되었다. 본 연구는 현재 배포된 플럭스 자료들은 개선의 여지가 있으며, 최신 자료의 올바른 사용을 위한 자료 사용자와 자료 생산자 간의 소통의 중요성을 상기시켜 준다.

Keywords

References

  1. Baldocchi, D. D., B. B. Hincks, and T. P. Meyers, 1988: Measuring biosphere-atmosphere exchanges of biologically related gases with micrometeorological methods. Ecology 69, 1331-1340. https://doi.org/10.2307/1941631
  2. Britton, C., and J. Dodd, 1976: Relationships of photosynthetically active radiation and shortwave irradiance. Agricultural Meteorology 17, 1-7. https://doi.org/10.1016/0002-1571(76)90080-7
  3. Burba, G. G., D. K. McDermitt, A. Grelle, D. J. Anderson, and L. Xu, 2008: Addressing the influence of instrument surface heat exchange on the measurements of $CO_{2}$ flux from open-path gas analyzers. Global Change Biology 14, 1854-1876. https://doi.org/10.1111/j.1365-2486.2008.01606.x
  4. Chae, N., 2011: Annual variation of soil respiration and precipitation in a temperate forest (Quercus serrata and Carpinus laxiflora) Under East Asian Monsoon Climate. Journal of Plant Biology 54, 101-111. https://doi.org/10.1007/s12374-011-9148-9
  5. Choi, T., J. Kim, and J. I. Yun, 1999: On using the eddy covariance method to study the interaction between agro-forest ecosystems and the atmosphere. Korean Journal of Agricultural Forest Meteorology, 1, 60-71. (in Korean with English abstract)
  6. Falge, E., D. Baldocchi, R. Olson, P. Anthoni, M. Aubinet, C. Bernhofer, G. Burba, R. Ceulemans, R. Clement, and H. Dolman, 2001: Gap filling strategies for defensible annual sums of net ecosystem exchange. Agricultural and Forest Meteorology 107, 43-69. https://doi.org/10.1016/S0168-1923(00)00225-2
  7. Gu, L., E. M. Falge, T. Boden, D. D. Baldocchi, T. Black, S. R. Saleska, T. Suni, S. B. Verma, T. Vesala, and S. C. Wofsy, 2005: Objective threshold determination for nighttime eddy flux filtering. Agricultural and Forest Meteorology 128, 179-197. https://doi.org/10.1016/j.agrformet.2004.11.006
  8. Hirata, R., T. Hirano, N. Saigusa, Y. Fujinuma, K. Inukai, Y. Kitamori, Y. Takahashi, and S. Yamamoto, 2007: Seasonal and interannual variations in carbon dioxide exchange of a temperate larch forest. Agricultural and Forest Meteorology 147, 110-124. https://doi.org/10.1016/j.agrformet.2007.07.005
  9. Hong, J., J. Kim, D. Lee, and J.-H. Lim, 2008: Estimation of the storage and advection effects on $H_{2}O$ and $CO_{2}$ exchanges in a hliily KoFlux forest catchment. Water Resources Research 44, W01426.
  10. Hong, J., H. Kwon, J. Lim, Y. Byun, J. Lee, and J. Kim, 2009: Standardization of KoFlux eddy covariance data processing. Korean Journal of Agricultural Forest Meteorology, 11, 19-26. (in Korean with English abstract) https://doi.org/10.5532/KJAFM.2009.11.1.019
  11. Kang, M., H. Kwon, J. H. Cheon, and J. Kim, 2012: On Estimating Wet Canopy Evaporation from Deciduous and Coniferous Forests in the Asian Monsoon Climate. Journal of Hydrometeorology 13, 950-965. https://doi.org/10.1175/JHM-D-11-07.1
  12. Kang, M., S. Park, H. Kwon, H. T. Choi, Y.-J. Choi, and J. Kim, 2009: Evapotranspiration from a deciduous forest in a complex terrain and a heterogeneous farmland under monsoon climate. Asia-Pacific Journal of Atmospheric Sciences 45, 175-191.
  13. Kengen, S., 1997: Forest valuation for decision-making: lessons of experience and proposals for improvement. FAO.
  14. Kim, C., J.-H. Lim, and J. H. Shin, 2003: Nutrient dynamics in litterfall and decomposing leaf litter at the Kwangneung deciduous broad-leaved natural forest. Korean Journal of Agricultural and Forest Meteorology 5, 87-93.
  15. Kim, J., D. Lee, J. Hong, S. Kang, S.-J. Kim, S.-K. Moon, J.-H. Lim, Y. Son, J. Lee, S. Kim, N. Woo, K. Kim, B. Lee, B.-L. Lee and S. Kim, 2006: HydroKorea and CarboKorea: cross-scale studies of ecohydrology and biogeochemistry in a heterogeneous and complex forest catchment of Korea. Ecological Research 21, 881-889. https://doi.org/10.1007/s11284-006-0055-3
  16. Kim, Y., S. Kang, J.-H. Lim, D. Lee, and J. Kim, 2010: Inter-annual and inter-plot variations of wood biomass production as related to biotic and abiotic characteristics at a deciduous forest in complex terrain, Korea. Ecological Research 25, 757-769. https://doi.org/10.1007/s11284-010-0705-3
  17. Kwon, H., J. Kim, and J. Hong, 2010: Influence of the Asian Monsoon on net ecosystem carbon exchange in two major plant functional types in Korea. Biogeosciences 7, 1493-1504. https://doi.org/10.5194/bg-7-1493-2010
  18. Kwon, H., T.-Y. Park, J. Hong, J.-H. Lim, and J. Kim, 2009: Seasonality of Net Ecosystem Carbon Exchang in Two Major Plant Functional Types in Korea. Asia- Pacific Journal of Atmospheric Sciences 45, 149-163.
  19. Lagergren, F., L. Eklundh, A. Grelle, M. Lundblad, M. Molder, H. Lankreijer, and A. Lindroth, 2005: Net primary production and light use efficiency in a mixed coniferous forest in Sweden. Plant, Cell & Environment 28, 412-423. https://doi.org/10.1111/j.1365-3040.2004.01280.x
  20. Lee, J. S., 2011: Monitoring soil respiration using an automatic operating chamber in a Gwangneung temperate deciduous forest. Journal of Ecology and Environment 34, 411-422. https://doi.org/10.5141/JEFB.2011.043
  21. Lee, K., 1995: Tree Physiology. Seoul National University Press, pp. 514.
  22. Lee, N.-y., J.-W. Koo, N. J. Noh, J. Kim, and Y. Son, 2010: Autotrophic and heterotrophic respiration in needle fir and Quercus-dominated stands in a cool-temperate forest, central Korea. Journal of Plant Research 123, 485-495. https://doi.org/10.1007/s10265-010-0316-7
  23. Lee, S.-J., J. Kim, M. Kang, and B. Malla Thakuri, 2014: Numerical simulation of local atmospheric circulations in the valley of Gwangneung KoFlux site. Korean Journal of Agricultural Forest Meteorology, this issue. (in Korean with English abstract)
  24. Lee, X., J. D. Fuentes, R. M. Staebler, and H. H. Neumann, 1999: Long-term observation of the atmospheric exchange of $CO_{2}$ with a temperate deciduous forest in southern Ontario, Canada. Journal of Geophysical Research: Atmospheres (1984-2012) 104, 15975-15984. https://doi.org/10.1029/1999JD900227
  25. Lim, J.-H., J. H. Shin, G. Z. Jin, J. H. Chun, and H. S. Oh, 2003: Forest stand structure, site characteristics and carbon budget of the Kwangneung natural forest in Korea. Korean Journal of Agricultural and Forest Meteorology 5, 101-109.
  26. Lloyd, J., and J. Taylor, 1994: On the temperature dependence of soil respiration. Functional Ecology 8, 315-323. https://doi.org/10.2307/2389824
  27. McCree, K. J., 1972: Test of current definitions of photosynthetically active radiation against leaf photosynthesis data. Agricultural Meteorology 10, 443-453. https://doi.org/10.1016/0002-1571(72)90045-3
  28. Malla Thakuri, B., M. Kang, J.-H. Chun, and J. Kim, 2014: Vertical profiles of $CO_{2}$ concentrations and storage in temperate forest in Korea. in preparation.
  29. Mizoguchi, Y., Y. Ohtani, S. Takanashi, H. Iwata, Y. Yasuda, and Y. Nakai, 2012: Seasonal and interannual variation in net ecosystem production of an evergreen needleleaf forest in Japan. Journal of Forest Research 17, 283-295. https://doi.org/10.1007/s10310-011-0307-0
  30. Saigusa, N., S.-G. Li, H. Kwon, K. Takagi, L.-M. Zhang, R. Ide, M. Ueyama, J. Asanuma, Y.-J. Choi, J. Chun, S.- J. Han, T. Hirano, R. Hirata, M. Kang, T. Kato, J. Kim, Y.-N. Li, T. Maeda, A. Miyata, Y. Mizoguchi, S. Murayama, Y. Nakai, T. Ohta, T. Saitoh, H.-M. Wang, G.-R. Yu, Y.- P. Zhang and F.-H. Zhao, 2013: Dataset of CarboEastAsia and uncertainties in the $CO_{2}$ budget evaluation caused by different data processing. Journal of Forest Research 18, 41-48. https://doi.org/10.1007/s10310-012-0378-6
  31. Saigusa, N., S. Yamamoto, S. Murayama, and H. Kondo, 2005: Inter-annual variability of carbon budget components in an AsiaFlux forest site estimated by long-term flux measurements. Agricultural and Forest Meteorology 134, 4-16. https://doi.org/10.1016/j.agrformet.2005.08.016
  32. Shim, C., J. Hong, J. Hong, Y. Kim, M. Kang, B. Malla Thakuri, Y. Kim, and J.-H. Chun, 2014: Evaluation of MODIS GPP over a complex ecosystem in East Asia: a case of Gwangneung flux tower in Korea. Advances in Space Research, accepted.
  33. Suh, S.-U., Y.-K. Min, and J.-S. Lee, 2005: Seasonal variation of contribution of leaf-litter decomposition rate in soil respiration in temperate deciduous forest. Korean Journal of Agricultural Forest Meteorology 7, 57-65. (in Korean with English abstract)
  34. Takanashi, S., Kosugi, Y., Tanaka, Y., Yano, M., Katayama, T., Tanaka, H. and Tani, M., 2005: $CO_{2}$ exchange in a temperate Japanese cypress forest compared with that in a cool-temperate deciduous broad-leaved forest. Ecological Research 20, 313-324. https://doi.org/10.1007/s11284-005-0047-8
  35. Ueyama, M., K. Ichii, N. Saigusa, T. Hirano, M. Alberto, J., Asanuma, M. S. Bret-Harte, C., Edgar, S. E. Euskirchen, S. J. Han, Y.-J. Hsia, M. Kang, J. Kim, K. Kitamura, Y. Kominami, H. Kondo, A Kotani, Y. Kosugi, S.-G. Li, Y. N. Li, T. Maeda, Y. Matsuura, A. Miyata, Y. Mizoguchi, T. Ohta, T. M. Saitoh, T. Shimizu, K. Takagi, Y. Tang, H. Wang, Y. Yasuda, G.-R. Yu, Y.-P. Zhang, F.-H. Zhao, N. Zimov, S. A. Zimov, 2013: An integrated flux database for Asia. International Joint Conference of AsiaFlux, HESSS, and KSAFM, Seoul, Korea, AsiaFlux, HESSS, and KSAFM.
  36. van Gorsel, E., N. Delpierre, R. Leuning, A. Black, J. W. Munger, S. Wofsy, M. Aubinet, C. Feigenwinter, J. Beringer, and D. Bonal, 2009: Estimating nocturnal ecosystem respiration from the vertical turbulent flux and change in storage of $CO_{2}$. Agricultural and Forest Meteorology, 149, 1919-1930. https://doi.org/10.1016/j.agrformet.2009.06.020
  37. van Gorsel, E., R. Leuning, H. A. Cleugh, H. Keith, M. U. Kirschbaum, and T. Suni, 2008: Application of an alternative method to derive reliable estimates of nighttime respiration from eddy covariance measurements in moderately complex topography. Agricultural and Forest Meteorology 148, 1174-1180. https://doi.org/10.1016/j.agrformet.2008.01.015
  38. van Gorsel, E., R. Leuning, H. A. Cleugh, H. Keith, and T. Suni, 2007: Nocturnal carbon efflux: Reconciliation of eddy covariance and chamber measurements using an alternative to the u*-threshold filtering technique. Tellus B 59, 397-403. https://doi.org/10.1111/j.1600-0889.2007.00252.x
  39. Wohlfahrt, G., M. Bahn, A. Haslwanter, C. Newesely, and A. Cernusca, 2005: Estimation of daytime ecosystem respiration to determine gross primary production of a mountain meadow. Agricultural and Forest Meteorology 130, 13-25. https://doi.org/10.1016/j.agrformet.2005.02.001
  40. Yoon, T. K., N. J. Noh, R.-H. Kim, K. W. Seo, S. K. Lee, K. Yi, I. K. Lee, J.-H. Lim and Y. Son, 2011: Mass dynamics of coarse woody debris in an old-growth deciduous forest of Gwangneung, Korea. Forest Science and Technology 7, 145-150. https://doi.org/10.1080/21580103.2011.621388
  41. Yun, J., S. Kim, M. Kang, C.-H. Cho, J.-H. Chun, and J. Kim, 2014: Process networks of ecohydrological systems in a temperate deciduous forest: A complex systems perspective. Korean Journal of Agricultural Forest Meteorology, this issue. (in Korean with English abstract) https://doi.org/10.5532/KJAFM.2014.16.3.157
  42. Zhang, J.-H., S.-J. Han, and G.-R. Yu, 2006: Seasonal variation in carbon dioxide exchange over a 200-year-old Chinese broad-leaved Korean pine mixed forest. Agricultural and Forest Meteorology 137, 150-165. https://doi.org/10.1016/j.agrformet.2006.02.004

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