Journal ArticleDOI
Change in CO2 balance under a series of forestry activities in a cool‐temperate mixed forest with dense undergrowth
Kentaro Takagi,Karibu Fukuzawa,Naishen Liang,Masazumi Kayama,Mutsumi Nomura,Hajime Hojyo,Sadao Sugata,Hideaki Shibata,Tatsuya Fukazawa,Yoshiyuki Takahashi,Tatsuro Nakaji,Hiroyuki Oguma,Masayoshi Mano,Yukio Akibayashi,Takeshi Murayama,Takayoshi Koike,Kaichiro Sasa,Yasumi Fujinuma +17 more
Reads0
Chats0
TLDR
In this paper, the effects on CO2 exchange of clearcutting a mixed forest and replacing it with a plantation were evaluated in a conifer-broadleaf mixed forest in Hokkaido, Japan.Abstract:
To evaluate the effects on CO2 exchange of clearcutting a mixed forest and replacing it with a plantation, 4.5 years of continuous eddy covariance measurements of CO2 fluxes and soil respiration measurements were conducted in a conifer-broadleaf mixed forest in Hokkaido, Japan. The mixed forest was a weak carbon sink (net ecosystem exchange, � 44gCm � 2 yr � 1 ), and it became a large carbon source (569gCm � 2 yr � 1 ) after clearcutting. However, the large emission in the harvest year rapidly decreased in the following 2 years (495 and 153gCm � 2 yr � 1 , respectively) as the gross primary production (GPP) increased, while the total ecosystem respiration (RE) remained relatively stable. The rapid increase in GPP was attributed to an increase in biomass and photosynthetic activity of Sasa dwarf bamboo, an understory species. Soil respiration increased in the 3 years following clearcutting, in the first year mainly owing to the change in the gap ratio of the forest, and in the following years because of increased root respiration by the bamboo. The ratio of soil respiration to RE increased from 44% in the forest to nearly 100% after clearcutting, and aboveground parts of the vegetation contributed little to the RE although the respiration chamber measurements showed heterogeneous soil condition after clearcutting.read more
Citations
More filters
Journal ArticleDOI
Separation of net ecosystem exchange into assimilation and respiration using a light response curve approach: critical issues and global evaluation
Gitta Lasslop,Markus Reichstein,Dario Papale,Andrew D. Richardson,Almut Arneth,Alan Barr,Paul C. Stoy,Georg Wohlfahrt +7 more
TL;DR: In this paper, the authors introduce an algorithm for NEE partitioning that uses a hyperbolic light response curve fit to daytime NEE, modified to account for the temperature sensitivity of respiration and the VPD limitation of photosynthesis.
Journal ArticleDOI
A continuous satellite-derived global record of land surface evapotranspiration from 1983 to 2006
TL;DR: In this article, a satellite remote sensing-based evapotranspiration (ET) algorithm was applied to assess global terrestrial ET from 1983 to 2006 using a modified Penman-Monteith approach with biome-specific canopy conductance determined from the normalized difference vegetation index (NDVI) and quantifying open water evaporation using a Priestley-Taylor approach.
Journal ArticleDOI
Joint control of terrestrial gross primary productivity by plant phenology and physiology
Jianyang Xia,Shuli Niu,Philippe Ciais,Ivan A. Janssens,Jiquan Chen,Christof Ammann,Altaf Arain,Peter D. Blanken,Alessandro Cescatti,Damien Bonal,Nina Buchmann,Peter James Curtis,Shiping Chen,Jinwei Dong,Lawrence B. Flanagan,Christian Frankenberg,Teodoro Georgiadis,Christopher M. Gough,Dafeng Hui,Gerard Kiely,Jianwei Li,Jianwei Li,Magnus Lund,Vincenzo Magliulo,Barbara Marcolla,Lutz Merbold,Leonardo Montagnani,Eddy Moors,Jørgen E. Olesen,Shilong Piao,Shilong Piao,Antonio Raschi,Olivier Roupsard,Andrew E. Suyker,Marek Urbaniak,Francesco Primo Vaccari,Andrej Varlagin,Timo Vesala,Matthew Wilkinson,Ensheng Weng,Georg Wohlfahrt,Liming Yan,Yiqi Luo,Yiqi Luo +43 more
TL;DR: It is found that plant phenological and physiological properties can be integrated in a robust index—the product of the length of CO2 uptake period and the seasonal maximal photosynthesis—to explain the GPP variability over space and time in response to climate extremes and during recovery after disturbance.
Journal ArticleDOI
Use of digital cameras for phenological observations
Reiko Ide,Hiroyuki Oguma +1 more
TL;DR: The results suggest the utility of digital cameras for phenological observations at precise temporal and spatial resolutions, despite a year-to-year drift of color balance of camera as a technical device.
Journal ArticleDOI
Semiempirical modeling of abiotic and biotic factors controlling ecosystem respiration across eddy covariance sites
Mirco Migliavacca,Mirco Migliavacca,Markus Reichstein,Andrew D. Richardson,Roberto Colombo,Mark A. Sutton,Gitta Lasslop,Enrico Tomelleri,Georg Wohlfahrt,Nuno Carvalhais,Nuno Carvalhais,Alessandro Cescatti,Miguel D. Mahecha,Miguel D. Mahecha,Leonardo Montagnani,Dario Papale,Soenke Zaehle,Altaf Arain,Almut Arneth,T. Andrew Black,Arnaud Carrara,Sabina Dore,Damiano Gianelle,Carole Helfter,David Y. Hollinger,Werner L. Kutsch,Peter M. Lafleur,Yann Nouvellon,Corinna Rebmann,Corinna Rebmann,Humberto Ribeiro da Rocha,Mirco Rodeghiero,Olivier Roupsard,Maria-Teresa Sebastià,Guenther Seufert,J. F. Soussana,Michiel K. van der Molen +36 more
TL;DR: In this article, the main factors involved in the variability of R-ECO: temporally and between sites as affected by climate, vegetation structure and plant functional type (evergreen needleleaf, grasslands, etc.).
References
More filters
Journal ArticleDOI
Correction of flux measurements for density effects due to heat and water vapour transfer
TL;DR: In this article, the basic relationships are discussed in the context of vertical transfer in the lower atmosphere, and the required corrections to the measured flux are derived, where the correction to measurements of water vapour flux will often be only a few per cent but will sometimes exceed 10 percent.
Journal ArticleDOI
On the temperature dependence of soil respiration
Jon Lloyd,John Taylor +1 more
TL;DR: An empirical equation is presented which yields an unbiased estimator of respiration rates over a wide range of temperatures and provides representative estimates of the seasonal cycle of net ecosystem productivity and its effects on atmospheric CO 2.
Journal ArticleDOI
The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate
TL;DR: In this article, measured rates of soil respiration from terrestrial and wetland ecosystems were used to define the annual global CO 2 flux from soils, to identify uncertainties in the global flux estimate, and to investigate the influences of temperature, precipitation, and vegetation.
Journal ArticleDOI
On the Separation of Net Ecosystem Exchange into Assimilation and Ecosystem Respiration: Review and Improved Algorithm
Markus Reichstein,Eva Falge,Dennis D. Baldocchi,Dario Papale,Marc Aubinet,Paul Berbigier,Christian Bernhofer,Nina Buchmann,Nina Buchmann,Tagir G. Gilmanov,A. Granier,Thomas Grünwald,Katka Havránková,Hannu Ilvesniemi,Dalibor Janouš,Alexander Knohl,Alexander Knohl,Tuomas Laurila,Annalea Lohila,Denis Loustau,Giorgio Matteucci,Tilden P. Meyers,Franco Miglietta,Jean-Marc Ourcival,Jukka Pumpanen,Serge Rambal,Eyal Rotenberg,María José Sanz,John Tenhunen,G. Seufert,Francesco Primo Vaccari,Timo Vesala,Dan Yakir,Riccardo Valentini +33 more
TL;DR: In this paper, the authors analyse the effect of extrapolation of night-time values of ecosystem respiration into the daytime; this is usually done with a temperature response function that is derived from long-term data sets.
Book ChapterDOI
Estimates of the annual net carbon and water exchange of forests: the EUROFLUX methodology
Marc Aubinet,Achim Grelle,Andreas Ibrom,Üllar Rannik,John Moncrieff,Thomas Foken,Andrew S. Kowalski,Philippe H. Martin,Paul Berbigier,Christian Bernhofer,Robert Clement,Jan Elbers,André Granier,Thomas Grünwald,K. Morgenstern,Kim Pilegaard,Corinna Rebmann,W. Snijders,Riccardo Valentini,Timo Vesala +19 more
TL;DR: In this article, the authors have described the measurement system and the procedure followed for the computation of the fluxes and procedure of flux summation, including data gap filling strategy, night flux corrections and error estimation.
Related Papers (5)
On the Separation of Net Ecosystem Exchange into Assimilation and Ecosystem Respiration: Review and Improved Algorithm
Markus Reichstein,Eva Falge,Dennis D. Baldocchi,Dario Papale,Marc Aubinet,Paul Berbigier,Christian Bernhofer,Nina Buchmann,Nina Buchmann,Tagir G. Gilmanov,A. Granier,Thomas Grünwald,Katka Havránková,Hannu Ilvesniemi,Dalibor Janouš,Alexander Knohl,Alexander Knohl,Tuomas Laurila,Annalea Lohila,Denis Loustau,Giorgio Matteucci,Tilden P. Meyers,Franco Miglietta,Jean-Marc Ourcival,Jukka Pumpanen,Serge Rambal,Eyal Rotenberg,María José Sanz,John Tenhunen,G. Seufert,Francesco Primo Vaccari,Timo Vesala,Dan Yakir,Riccardo Valentini +33 more
Ecosystem carbon dioxide fluxes after disturbance in forests of North America
B. D. Amiro,Alan G. Barr,Jordan G. Barr,T. A. Black,Rosvel Bracho,Mathew Brown,Jiquan Chen,Kenneth L. Clark,Kenneth J. Davis,Ankur R. Desai,Sylvain Doré,Vic Engel,Jose D. Fuentes,Allen H. Goldstein,Michael L. Goulden,Thomas Kolb,Michael B. Lavigne,Beverly E. Law,Hank A. Margolis,Timothy A. Martin,J.H. McCaughey,Laurent Misson,M. Montes-Helu,Asko Noormets,James T. Randerson,Gregory Starr,Jingfeng Xiao +26 more