論文

査読有り
2017年5月

Estimation of global soil respiration by accounting for land-use changes derived from remote sensing data

Journal of environmental management
  • Adachi, Minaco
  • ,
  • Ito, Akihiko
  • ,
  • Yonemura, Seiichiro
  • ,
  • Takeuchi, Wataru

200
開始ページ
97
終了ページ
104
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jenvman.2017.05.076
出版者・発行元
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD

Soil respiration is one of the largest carbon fluxes from terrestrial ecosystems. Estimating global soil respiration is difficult because of its high spatiotemporal variability and sensitivity to land-use change. Satellite monitoring provides useful data for estimating the global carbon budget, but few studies have estimated global soil respiration using satellite data. We provide preliminary insights into the estimation of global soil respiration in 2001 and 2009 using empirically derived soil temperature equations for 17 ecosystems obtained by field studies, as well as MODIS climate data and land-use maps at a 4-km resolution. The daytime surface temperature from winter to early summer based on the MODIS data tended to be higher than the field-observed soil temperatures in subarctic and temperate ecosystems. The estimated global soil respiration was 94.8 and 93.8 Pg C yr(-1) in 2001 and 2009, respectively. However, the MODIS land-use maps had insufficient spatial resolution to evaluate the effect of land-use change on soil respiration. The spatial variation of soil respiration (Q10) values was higher but its spatial variation was lower in high-latitude areas than in other areas

リンク情報
DOI
https://doi.org/10.1016/j.jenvman.2017.05.076
ID情報
  • DOI : 10.1016/j.jenvman.2017.05.076
  • ISSN : 1095-8630

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