Litter contribution to diurnal and annual soil respiration in a tropical montane cloud forest

Zimmermann, Michael; Meir, Patrick; Bird, Michael I.; Malhi, Yadvinder; Ccahuana, Adan J. Q.

doi:10.1016/j.soilbio.2009.02.023

Cited by 72 publications

(60 citation statements)

References 15 publications

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“…We measured diurnal time-courses of soil respiration with an automatic open chamber and showed that during a day without rain, the temporal variation of soil respiration followed soil temperature. This exponential function of soil temperature has already been shown by several other studies (Evrendilek et al, 2005;Zimmermann et al, 2009). Sudden peaks in soil CO 2 efflux immediately after rainfall events confirm previous findings by Inglima et al (2009) and Lee et al (2004).…”

Section: Discussionsupporting

confidence: 79%

Spatial and temporal variation of CO2 efflux along a disturbance gradient in a miombo woodland in Western Zambia

Merbold

Ziegler

Mukelabai³

et al. 2011

Biogeosciences

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Abstract. Carbon dioxide efflux from the soil surface was measured over a period of several weeks within a heterogeneous Brachystegia spp. dominated miombo woodland in Western Zambia. The objectives were to examine spatial and temporal variation of soil respiration along a disturbance gradient from a protected forest reserve to a cut, burned, and grazed area outside, and to relate the flux to various abiotic and biotic drivers. The highest daily mean fluxes (around 12 µmol CO 2 m −2 s −1 ) were measured in the protected forest in the wet season and lowest daily mean fluxes (around 1 µmol CO 2 m −2 s −1 ) in the most disturbed area during the dry season. Diurnal variation of soil respiration was closely correlated with soil temperature. The combination of soil water content and soil temperature was found to be the main driving factor at seasonal time scale. There was a 75% decrease in soil CO 2 efflux during the dry season and a 20% difference in peak soil respiratory flux measured in 2008 and 2009. Spatial variation of CO 2 efflux was positively related to total soil carbon content in the undisturbed area but not at the disturbed site. Coefficients of variation of efflux rates between plots decreased towards the core zone of the protected forest reserve. Normalized soil respiration values did not vary significantly along the disturbance gradient. Spatial variation of respiration did not show a clear distinction between the disturbed and undisturbed sites and could not be explained by variables such as leaf area index. In contrast, within plot variability of soil respiration was explained by soil organic carbon content.Correspondence to: L. Merbold (merboldl@ethz.ch) Three different approaches to calculate total ecosystem respiration (R eco ) from eddy covariance measurements were compared to two bottom-up estimates of R eco obtained from chambers measurements of soil-and leaf respiration which differed in the consideration of spatial heterogeneity. The consideration of spatial variability resulted only in small changes of R eco when compared to simple averaging. Total ecosystem respiration at the plot scale, obtained by eddy covariance differed by up to 25% in relation to values calculated from the soil-and leaf chamber efflux measurements but without showing a clear trend.

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Section: Discussionsupporting

confidence: 79%

Spatial and temporal variation of CO2 efflux along a disturbance gradient in a miombo woodland in Western Zambia

Merbold

Ziegler

Mukelabai³

et al. 2011

Biogeosciences

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“…While several studies have found that respiration from organic horizons represents a larger percentage of R S than our estimates [18][19][20]22,44], our results fall within the range reported by others [4,22,24], and support the general consensus across these studies that root respiration and decomposition of organic compounds within the mineral soil represent the largest contributions to R S .…”

Section: Forest Floor Contributions To Soil Respirationsupporting

confidence: 90%

Forest Floor and Mineral Soil Respiration Rates in a Northern Minnesota Red Pine Chronosequence

Powers

Kolka

Bradford

et al. 2017

Forests

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Abstract:We measured total soil CO 2 efflux (R S ) and efflux from the forest floor layers (R FF ) in red pine (Pinus resinosa Ait.) stands of different ages to examine relationships between stand age and belowground C cycling. Soil temperature and R S were often lower in a 31-year-old stand (Y31) than in 9-year-old (Y9), 61-year-old (Y61), or 123-year-old (Y123) stands. This pattern was most apparent during warm summer months, but there were no consistent differences in R FF among different-aged stands. R FF represented an average of 4-13% of total soil respiration, and forest floor removal increased moisture content in the mineral soil. We found no evidence of an age effect on the temperature sensitivity of R S , but respiration rates in Y61 and Y123 were less sensitive to low soil moisture than R S in Y9 and Y31. Our results suggest that soil respiration's sensitivity to soil moisture may change more over the course of stand development than its sensitivity to soil temperature in red pine, and that management activities that alter landscape-scale age distributions in red pine forests could have significant impacts on rates of soil CO 2 efflux from this forest type.

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“…The absence of this substrate might offset the expected increased decomposition rate resulting from higher soil temperatures at the side of the logging road. Previous studies showing the contribution of litter to soil respiration in high elevation forests in tropical regions (approximately 800-3000 m asl) have indicated that respiration in the litter layer represents about 20-40% of total soil respiration (Zhou et al 2013, Zimmermann et al 2009. It is also possible that the microbial community and microbial biomass at the roadside differ from those in the inner parts of the forest.…”

Section: Spatial Gradient Of Soil Respiration From the Logging Road Tmentioning

confidence: 99%

Spatial variation in soil respiration in relation to a logging road in an upper tropical hill forest in Peninsular Malaysia

Takada

Yamada

Ibrahim

et al. 2015

Tropics

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The spatial gradient of soil respiration from a logging road to the inner part of a forest, and the major environmental factors controlling soil respiration were studied in a hill dipterocarp forest in Peninsular Malaysia to examine the spatial effects of logging road construction on soil respiration. Soil respiration, soil temperature, and soil water content were measured at six points along a total of twenty-five 35-m transects. The logging road at the study site was constructed in 2009. The soil respiration rate on the logging road was very low (0.376 mol CO 2 m 2 s 1 ), and there were no significant differences between the roadside and inside the forest (4.76-5.95 mol CO 2 m 2 s 1 ). Path analysis showed that the soil respiration rate was affected by soil temperature and distance from the logging road. This finding differs from those of previous studies conducted in lowland tropical rain forests. We speculate that the low soil respiration rate on the road is primarily because of soil compaction and low concentrations of carbon-containing material. The soil temperature at the roadside (which was positively correlated with soil respiration) was higher than inside the forest. Despite the differences in soil temperatures, differences in soil respiration between the roadside and the inner parts of the forest were not significant, probably because of the small amount of litter present as a substrate for microbial respiration at the roadside and/or the occurrence of different microbial communities and biomass between the roadside and the inner parts of the forest.

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Litter contribution to diurnal and annual soil respiration in a tropical montane cloud forest

Cited by 72 publications

References 15 publications

Spatial and temporal variation of CO<sub>2</sub> efflux along a disturbance gradient in a <i>miombo</i> woodland in Western Zambia

Spatial and temporal variation of CO<sub>2</sub> efflux along a disturbance gradient in a <i>miombo</i> woodland in Western Zambia

Forest Floor and Mineral Soil Respiration Rates in a Northern Minnesota Red Pine Chronosequence

Spatial variation in soil respiration in relation to a logging road in an upper tropical hill forest in Peninsular Malaysia

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Litter contribution to diurnal and annual soil respiration in a tropical montane cloud forest

Cited by 72 publications

References 15 publications

Spatial and temporal variation of CO&lt;sub&gt;2&lt;/sub&gt; efflux along a disturbance gradient in a &lt;i&gt;miombo&lt;/i&gt; woodland in Western Zambia

Spatial and temporal variation of CO&lt;sub&gt;2&lt;/sub&gt; efflux along a disturbance gradient in a &lt;i&gt;miombo&lt;/i&gt; woodland in Western Zambia

Forest Floor and Mineral Soil Respiration Rates in a Northern Minnesota Red Pine Chronosequence

Spatial variation in soil respiration in relation to a logging road in an upper tropical hill forest in Peninsular Malaysia

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Spatial and temporal variation of CO<sub>2</sub> efflux along a disturbance gradient in a <i>miombo</i> woodland in Western Zambia

Spatial and temporal variation of CO<sub>2</sub> efflux along a disturbance gradient in a <i>miombo</i> woodland in Western Zambia