Soil–atmosphere exchange of N2O, CO2 and CH4 along a slope of an evergreen broad-leaved forest in southern China

Fang, Yunting; Gundersen, Per; Zhang, Wei; Zhou, Guoyi; Christiansen, Jesper Riis; Mo, Jiangming; Dong, Shaoming; Zhang, Tao

doi:10.1007/s11104-008-9847-2

Cited by 63 publications

(49 citation statements)

References 30 publications

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“…The temporal variations of CH 4 uptake by forests in China were discussed in many studies (Sun, 2000;Dong et al, 2003;Du et al, 2004;Mo et al, 2006;Tang et al, 2006;Fang et al, 2009;Yang et al, 2010;Liu et al, 2010aLiu et al, , 2010bHu et al, 2011;Li, 2011;Zhang et al, 2011a;Yang, 2012;Liu et al, 2012b). Several studies reported great diurnal variations of CH 4 uptake rates with no significant relations between CH 4 uptake and soil moisture or temperature Mo et al, 2005;Yang et al, 2010;Hu et al, 2011).…”

Section: Observed Methane Uptakes In Forests In Chinamentioning

confidence: 99%

Soil methane uptake by grasslands and forests in China

Wang

Chen

Zhu

et al. 2014

Soil Biology and Biochemistry

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Section: Observed Methane Uptakes In Forests In Chinamentioning

confidence: 99%

Soil methane uptake by grasslands and forests in China

Wang

Chen

Zhu

et al. 2014

Soil Biology and Biochemistry

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“…Shimada et al (1998) on the lower slope and 9.9 MgC ha À1 year À1 on the upper slope in a Japanese coniferous plantation. However, no correlation (Fang et al 2009), and the opposite trend, namely lower soil respiration rates on the lower slope and at the valley bottom than the upper slope (Chambers et al 2004;Tsutsumi et al 1985;Epron et al 2006;Mitani et al 2006;Kosugi et al 2007) have been reported in several forest ecosystems. Although many reports have suggested that soil respiration varies with slope position, no general principle concerning the relationship between slope position and soil respiration has yet been established.…”

Section: Introductionmentioning

confidence: 99%

Topographic variation in heterotrophic and autotrophic soil respiration in a tropical seasonal forest in Thailand

Takahashi

Hirai

Limtong³

et al. 2011

Soil Science and Plant Nutrition

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Soil respiration is a carbon flux that is indispensable for determining carbon balance despite variations over time and space in forest ecosystems. In Kanchanaburi, western Thailand, we measured the soil respiration rates at different slope positions-ridge (plot R), upper slope (plot U), and lower slope (plot L)-on a hill in a seasonal tropical forest [mixed deciduous forest (MDF)] to determine the seasonal and spatial variations in soil respiration on the slope. The heterotrophic (organic layer and soil) and autotrophic (root) respiration was differentiated by trenching. Soil respiration rates showed clear seasonal patterns: high and low rates in rainy and dry seasons respectively, at all plots, and tended to decrease up the slope. Soil respiration rates responded significantly to soil water content in the 0-30 cm layer, but the response patterns differed between the lower slope (plot L) and the upper slope (plots R and U): a linear model could be applied to the lower slope but exponential quadratic models to the upper slope. The annual carbon dioxide (CO 2 ) efflux from the forest floor was also associated with the slope position and ranged from 1908 gC m À2 year À1 in plot L to 1199 gC m À2 year À1 in plot R. With ascending position from plot L to R, the contribution of autotrophic respiration increased from 19.4 to 36.6% of total soil respiration, while that of the organic layer decreased from 26.2 to 9.4%. Mineral soil contributed to 46.3 to 54.4% of the total soil respiration. Soil water content was the key factor in controlling the soil respiration rate and the contribution of the respiration sources. However, the variable responses of soil respiration to soil water content create a complex distribution of soil respiration at the watershed scale.

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“…However, topography could influence other environmental factors, such as temperature, water, and nutrients, which control the soil carbon cycling process (Hishi et al, 2004;Fang et al, 2009). Along hill slopes, the soil carbon would have different distribution trends under different vegetation types.…”

Section: Introductionmentioning

confidence: 99%

Soil carbon stock and flux in plantation forest and grassland ecosystems in Loess Plateau, China

Li²,

Fu³

et al. 2014

Chin. Geogr. Sci.

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Abstract:Carbon sequestration occurs when cultivated soils are re-vegetated. In the hilly area of the Loess Plateau, China, black locust (Robinia pseudoacacia) plantation forest and grassland were the two main vegetation types used to mitigate soil and water loss after cultivation abandonment. The purpose of this study was to compare the soil carbon stock and flux of these two types of vegetation which restored for 25 years. The experiment was conducted in Yangjuangou catchment in Yan′an City, Shaanxi Province, China. Two adjacent slopes were chosen for this study. Six sample sites were spaced every 35-45 m from summit to toe slope along the hill slope, and each sample site contained three sampling plots. Soil organic carbon and related physicochemical properties in the surface soil layer (0-10 cm and 10-20 cm) were measured based on soil sampling and laboratory analysis, and the soil carbon dioxide (CO 2 ) emissions and environmental factors were measured in the same sample sites simultaneously. Results indicated that in general, a higher soil carbon stock was found in the black locust plantation forest than that in grassland throughout the hill slope. Meanwhile, significant differences in the soil carbon stock were observed between these two vegetation types in the upper slope at soil depth 0-10 cm and lower slope at soil depth 10-20 cm. The average daily values of the soil CO 2 emissions were 1.27 mol/(m 2 ·s) and 1.39 mol/(m 2 ·s) for forest and grassland, respectively. The soil carbon flux in forest covered areas was higher in spring and less variation was detected between different seasons, while the highest carbon flux was found in grassland in summer, which was about three times higher than that in autumn and spring. From the carbon sequestration point of view, black locust plantation forest on hill slopes might be better than grassland because of a higher soil carbon stock and lower carbon flux.

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Soil–atmosphere exchange of N2O, CO2 and CH4 along a slope of an evergreen broad-leaved forest in southern China

Cited by 63 publications

References 30 publications

Soil methane uptake by grasslands and forests in China

Soil methane uptake by grasslands and forests in China

Topographic variation in heterotrophic and autotrophic soil respiration in a tropical seasonal forest in Thailand

Soil carbon stock and flux in plantation forest and grassland ecosystems in Loess Plateau, China

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