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Erratum published on 6 March 2017, see Forests 2017, 8(3), 71.
Open AccessArticle

Spatial Upscaling of Soil Respiration under a Complex Canopy Structure in an Old‐Growth Deciduous Forest, Central Japan

1
United Graduate School of Agricultural Science, Gifu University, 1‐1 Yanagido, Gifu 501‐1193, Japan
2
Laboratory of Forest Wildlife Management, Faculty of Applied Biology Sciences, Gifu University, 1‐1 Yanagido, Gifu 501‐1193, Japan
3
River Basin Research Center, Gifu University, 1‐1 Yanagido, Gifu 501‐1193, Japan
4
School of Environmental Science, The University of Shiga Prefecture, Hikone, Shiga 522‐8533, Japan
5
Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305‐8577, Japan
*
Author to whom correspondence should be addressed.
Forests 2017, 8(2), 36; https://doi.org/10.3390/f8020036
Received: 6 December 2016 / Accepted: 24 January 2017 / Published: 30 January 2017
(This article belongs to the Special Issue Forest Soil Respiration under Climate Changing)
The structural complexity, especially canopy and gap structure, of old‐growth forests affects the spatial variation of soil respiration (Rs). Without considering this variation, the upscaling of Rs from field measurements to the forest site will be biased. The present study examined responses of Rs to soil temperature (Ts) and water content (W) in canopy and gap areas, developed the best fit modelof Rs and used the unique spatial patterns of Rs and crown closure to upscale chamber measurements to the site scale in an old‐growth beech‐oak forest. Rs increased with an increase in Ts in both gap and canopy areas, but the effect of W on Rs was different between the two areas. The generalized linear model (GLM) analysis identified that an empirical model of Rs with thecoupling of Ts and W was better than an exponential model of Rs with only Ts. Moreover, because of different responses of Rs to W between canopy and gap areas, it was necessary to estimate Rs in these areas separately. Consequently, combining the spatial patterns of Rs and the crown closure could allow upscaling of Rs from chamber‐based measurements to the whole site in the present study. View Full-Text
Keywords: soil respiration; spatial variation; gap/canopy structure; upscaling; old‐growth forest soil respiration; spatial variation; gap/canopy structure; upscaling; old‐growth forest
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Suchewaboripont, V.; Ando, M.; Yoshitake, S.; Iimura, Y.; Hirota, M.; Ohtsuka, T. Spatial Upscaling of Soil Respiration under a Complex Canopy Structure in an Old‐Growth Deciduous Forest, Central Japan. Forests 2017, 8, 36.

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