Seasonal and spatial variability of soil respiration in four Sitka spruce stands

Saiz, Gustavo; Green, Carly; Butterbach‐Bahl, Klaus; Kiese, Ralf; Avitabile, Valerio; Farrell, Edward P.

doi:10.1007/s11104-006-9052-0

Cited by 131 publications

(99 citation statements)

References 42 publications

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“…5), and more than 60.4% and 68.2% of the seasonal variability covering all four periods in 2006 and 2007, respectively. Such a strong temperature dependence of SCE has also been reported in other studies of subtropical forest ecosystems (Tang et al 2006;Saiz et al 2006;Sheng et al 2010), temperate semiarid grassland (Jin et al 2009b) and agro ecosystems (Han et al 2007;Meijide et al 2010). In these ecosystems, the SCE exhibited a distinct seasonal variation that paralleled the seasonality observed in soil temperature (Saiz et al 2006); the peak values could be explained by temperature.…”

Section: Discussionsupporting

confidence: 82%

Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China

Zhang¹,

Zhou²,

Lü³

et al. 2011

Ecological Research

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An automated chamber system was employed to measure the soil CO 2 efflux (SCE) in situ for 2 years in a conventional wheat field of the Loess Plateau, China under semi-arid conditions. The annual mean SCE values were 2.44 ± 2.52 lmol m À2 s À1 in 2006 and 2.37 ± 2.33 lmol m À2 s À1 in 2007. Distinct seasonality in the SCE was observed, with significant differences occurring among four periods divided by harvesting, tillage and sowing. In the period from tillage to sowing, the mean SCE values were 2.82 and 2.69 times the annual mean values in 2006 and 2007, respectively, and SCE accounted for 39% and 48% of the annual total within 14% and 18% of the days of the years. Although there were significant exponential correlations between the SCE and soil temperature, and significant linear correlations between the SCE and soil moisture for measurements conducted in the periods before tillage and after sowing each year, the SCE from tillage to sowing was significantly beyond the correlation curves. These findings indicated that seasonal variation in the SCE in a conventional field was controlled not only by soil temperature and moisture, but also by tillage practice. The confounding effects of climate and practice on SCE should be considered when developing ways to mitigate soil carbon loss in conventional cropland in semi-arid regions.

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Section: Discussionsupporting

confidence: 82%

Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China

Zhang¹,

Zhou²,

Lü³

et al. 2011

Ecological Research

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“…2b). The exclusion of soil temperature from factors explaining the spatial variation of soil respiration in summer was in accordance with other studies (Xu and Qi, 2001;Søe and Buchmann, 2005;Saiz et al, 2006).…”

Section: Seasonal Change Of the Spatial Variation In Soil Respirationsupporting

confidence: 93%

“…2b). Soil respiration rates reflect the metabolic activities of microbial communities and roots, which will be more or less favored depending on the specific environmental conditions presented at a location (Stoyan et al, 2000;Saiz et al, 2006;Kosugi et al, 2007). Soil moisture influences soil respiration directly though physiological processes of roots and microorganisms (Luo and Zhou, 2010).…”

Section: Seasonal Change Of the Spatial Variation In Soil Respirationmentioning

confidence: 99%

Seasonal spatial pattern of soil respiration in a temperate urban forest in Beijing

Yuan

et al. 2015

Urban Forestry & Urban Greening

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a b s t r a c tUrban forests play an important role in mitigating climate change in urban ecosystems. In order to obtain greater carbon sequestration benefits, it is crucial to advance the understanding of soil CO 2 efflux from urban forests. This study was undertaken to identify biotic and abiotic parameters that explained spatial variation in soil respiration, especially the effect of forest stand structure. To this aim, we measured soil respiration at 44 points in a 30 m × 50 m plot in an urban forest in Beijing over a 10 month period. The spatial variations of soil respiration were investigated, relating to soil climate, soil nutrients, root biomass and forest structural traits. The highest spatial variation in soil respiration was observed during the summer dry period, and similar degrees of variability were shown both in the growing and dormant season. Vegetation area index, soil moisture and nitrate nitrogen were the determinable parameters that influenced the spatial variation in soil respiration in the growing season, while nitrate nitrogen and soil temperature in the dormant season. Soil temperature, sulfur and roots biomass also affected the soil respiration during the growing season. Moreover, mean DBH and tree number within a 6-m radius had a significant influence on the spatial pattern of soil respiration at sub-plot level. Our results suggest that decreasing the soil CO 2 efflux might be an optional way to increase carbon sequestration potential for urban forest. This can be achieved by regulating forest stand structure and applying appropriate maintenance practices.

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“…At the stand level, the high spatial variability in R s resulted from large variations in, for example, W [46], soil physical properties [24,[47][48][49], fine root biomass [23,24,36,37,50,51], and stand structure [25,46]. A few studies have addressed this spatial variation for upscaling R s from different measurement points to the site scale [25,46].…”

Section: Estimation Of Soil Respiration In the Old-growth Forestmentioning

confidence: 99%

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

Suchewaboripont

Ando

Yoshitake

et al. 2017

Forests

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Abstract:The structural complexity, especially canopy and gap structure, of old-growth forests affects the spatial variation of soil respiration (R s ). Without considering this variation, the upscaling of R s from field measurements to the forest site will be biased. The present study examined responses of R s to soil temperature (T s ) and water content (W) in canopy and gap areas, developed the best fit model of R s and used the unique spatial patterns of R s and crown closure to upscale chamber measurements to the site scale in an old-growth beech-oak forest. R s increased with an increase in T s in both gap and canopy areas, but the effect of W on R s was different between the two areas. The generalized linear model (GLM) analysis identified that an empirical model of R s with the coupling of T s and W was better than an exponential model of R s with only T s . Moreover, because of different responses of R s to W between canopy and gap areas, it was necessary to estimate R s in these areas separately. Consequently, combining the spatial patterns of R s and the crown closure could allow upscaling of R s from chamber-based measurements to the whole site in the present study.

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Seasonal and spatial variability of soil respiration in four Sitka spruce stands

Cited by 131 publications

References 42 publications

Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China

Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China

Seasonal spatial pattern of soil respiration in a temperate urban forest in Beijing

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

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Seasonal and spatial variability of soil respiration in four Sitka spruce stands

Cited by 131 publications

References 42 publications

Seasonal dynamics of soil CO2 efflux in a conventional tilled wheat field of the Loess Plateau, China

Seasonal dynamics of soil CO2 efflux in a conventional tilled wheat field of the Loess Plateau, China

Seasonal spatial pattern of soil respiration in a temperate urban forest in Beijing

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

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Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China

Seasonal dynamics of soil CO₂ efflux in a conventional tilled wheat field of the Loess Plateau, China