Nitrous oxide fluxes from upland soils in central Hokkaido, Japan

Mu, Zhijian; Kimura, Shinzo; Toma, Yo; Hatano, Ryusuke

doi:10.1016/s1001-0742(08)62227-5

Cited by 25 publications

(16 citation statements)

References 34 publications

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“…However, interannual variation in precipitation showed no or only little effect on annual soil respiration rates at our site, which was in line with the observations reported by Borken et al [2002]. Large interannual variations of trace gas fluxes have also been observed in other investigations of temperate forest soils [ Brumme , 1995; Borken and Brumme , 1997; Gasche and Papen , 1999; Papen and Butterbach‐Bahl , 1999], agricultural land [ Kusa et al , 2006; Mu et al , 2008] and other ecosystems [ Brümmer et al , 2008; Song et al , 2009], even though these data sets are by far not as detailed and comprehensive as the one presented here. Our study clearly shows that long‐term continuous measurements over several years with high temporal resolution are needed to estimate the annual soil‐atmosphere trace gas exchange more reliably, especially for N 2 O, but also for soil NO and CO 2 fluxes.…”

Section: Discussionsupporting

confidence: 93%

“…Several studies have demonstrated that WFPS values around 60% act as an important threshold for nitrification and denitrification activities, e.g., below 60% WFPS nitrification activities increases with increasing soil moisture and decreases dramatically when WFPS exceeded 60%, while denitrification activity showed an entirely antithetic relationship [ Davidson , 1991; Kusa et al , 2006; Mu et al , 2008]. In our study, soil WFPS values were seldom above 60%, indicating that nitrification might be the primary pathway of N‐trace gas production at the Höglwald Forest site, which is consistent with previous studies at our site [ Butterbach‐Bahl et al , 2002].…”

Section: Discussionmentioning

confidence: 99%

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Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest

Wu¹,

Brüggemann

Gasché

et al. 2010

Global Biogeochemical Cycles

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[1] Trace gas exchange of N 2 O, NO, and CO 2 between soil and the atmosphere was measured with high temporal resolution for 5 years (2004)(2005)(2006)(2007)(2008) at the Höglwald Forest, Germany, using a fully automated measuring system. On the basis of these long-term continuous measurements, we calculated the annual budgets of soil-atmosphere trace gas , and 7.15 ± 0.08 t CO 2 -C ha −1 yr −1 , respectively. Seasonal patterns of soil N 2 O fluxes were characterized by event emissions, generally occurring during thawing after longer freezing periods. In contrast to N 2 O emissions, the seasonal patterns of NO and CO 2 soil-atmosphere exchange followed soil temperature changes, although a substantial increase in CO 2 emissions was also observed during the freeze and thaw periods. The fact that NO fluxes were higher than N 2 O emissions during most of the entire observation period indicated that nitrification might have been the primary pathway of N-trace gas production in our study. The extremely high N 2 O emissions and the substantial interannual variation of N 2 O flux rates caused by the freeze and thaw effect demonstrate the need for long-term measurements with high temporal resolution in order to come up with more reliable estimates of soil-atmosphere trace fluxes.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest

Wu¹,

Brüggemann

Gasché

et al. 2010

Global Biogeochemical Cycles

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“…The fluxes of CO 2 , N 2 O and CH 4 from soils were measured using a closed chamber technique (Mu et al, 2006;Mu et al, 2008a). The sampling was conducted at a frequency of about three times per month between 09:00 and 12:00 hours on each sampling date.…”

Section: Gas Flux Measurementsmentioning

confidence: 99%

Soil greenhouse gas fluxes and net global warming potential from intensively cultivated vegetable fields in southwestern China

Huang

et al. 2013

J. Soil Sci. Plant Nutr.

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Vegetable fields in China are characterized with intensive fertilization and cultivation, and their net effect on the global warming deserves attention. Greenhouse gas fluxes were thus measured, using a static closed chamber method, over approximately 18 months in two typical subtropical vegetable fields with different soil types and contrasting soil properties. Five consecutive crops were planted in one field and four in the other. Intensive fertilization consistently stimulated soil N 2 O emission, while imposed complicated impact on soil respiration with CO 2 emission enhanced in one field and suppressed in the other field. The fertilizer-induced N 2 O emission factors (EFs) varied with individual crop phases and averaged 1.4 to 3.1% across the whole sampling period for different fields. The interaction of soil temperature and moisture could explain about 58% of the seasonal variation in the EFs. All the soils under different vegetable cropping systems were net sources of atmospheric radiative forcing and the net global warming potential over the entire study period ranged from 1,786 to 3,569 g CO 2 equivalence m -2 for fertilized soils with net CO 2 emission contributing 53 to 67% and N 2 O emission occupying the remaining 33 to 47%.

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“…The basal and topdressing fertilizers were applied on November 14, 2009 andFebruary 17, 2010, respectively. Soil respiration measurements. During the rape growing season soil respiration rates were measured monthly using a closed chamber technique as described by Mu et al (2008). Three measurement positions were selected-on a plant, between plants and between rows and each position had three replicates (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

Contribution of root respiration to soil respiration in a rape (Brassica campestris L.) field in Southwest China

Hao

Jiang

2014

Plant Soil Environ.

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This study aimed to separate the respective contributions of root and microbial respiration to soil respiration in a rape field in Southwest China. The soil respiration was measured with a closed chamber technique and a regression method was used to apportion root and microbial respiration. Microbial and root respiration ranged from 70.67 to 183.77 mg CO 2 /m 2 /h and 21.99 to 193.09 mg CO 2 /m 2 /h, averaged 127.16 and 116.66 mg CO 2 /m 2 /h during the rape growing season, respectively. Root respiration coefficient ranged from 0.41 to 5.39 mg C-CO 2 /g C/h and was negatively correlated with root/shoot ratio, aboveground and belowground biomass, but positively correlated with root N content. The contribution of root respiration to soil respiration averaged 44.2%, ranging from 14.5% to 62.62%.

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Nitrous oxide fluxes from upland soils in central Hokkaido, Japan

Cited by 25 publications

References 34 publications

Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest

Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest

Soil greenhouse gas fluxes and net global warming potential from intensively cultivated vegetable fields in southwestern China

Contribution of root respiration to soil respiration in a rape (Brassica campestris L.) field in Southwest China

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Nitrous oxide fluxes from upland soils in central Hokkaido, Japan

Cited by 25 publications

References 34 publications

Environmental controls over soil‐atmosphere exchange of N2O, NO, and CO2 in a temperate Norway spruce forest

Environmental controls over soil‐atmosphere exchange of N2O, NO, and CO2 in a temperate Norway spruce forest

Soil greenhouse gas fluxes and net global warming potential from intensively cultivated vegetable fields in southwestern China

Contribution of root respiration to soil respiration in a rape (Brassica campestris L.) field in Southwest China

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Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest

Environmental controls over soil‐atmosphere exchange of N₂O, NO, and CO₂ in a temperate Norway spruce forest