Differences in the Spatial Variability Among CO2, CH4, and N2O Gas Fluxes from an Urban Forest Soil in Japan

Bellingrath-Kimura, Sonoko Dorothea; Kishimoto-Mo, Ayaka W.; Oura, Noriko; Sekikawa, S.; Yonemura, S.; Sudo, Shigeto; Hayakawa, Atsushi; Minamikawa, Kazunori; Takata, Yusuke; Hara, Hiroshi

doi:10.1007/s13280-014-0521-z

Cited by 18 publications

(8 citation statements)

References 27 publications

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“…Our results were consistent with a previous study that soil organic matter and nitrogen were higher in broadleaf forests than those under coniferous forests [34]. Similarly, several authors have already reported lower nutrient contents in coniferous stands in comparison with hardwoods stands [35][36]. The higher total C and total N in two broadleaf forests could likely be constant organic matter inputs, rhizodeposition, and the release and recycling of nutrients [37].…”

Section: Different Revegetation Types Contributing To Different Soil supporting

confidence: 92%

Soil Microbial Functional Diversity Responses to Different Revegetation Types in Baishilazi Nature Reserve

Deng¹,

Zhou²,

Bai³

et al. 2019

Pol. J. Environ. Stud.

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Soil microorganisms play important roles in the dynamic regulation of organic matter in the forest ecosystem and are affected by different revegetation types. To reveal the influence of different revegetation types on soil microorganisms, we examined soil properties, soil microbial activity and diversity in Baishilazi Nature Reserve, including two planted coniferous forests (LG: Larix gmelinii, PK: Pinus koraiensis), two natural secondary broadleaf forests (JM: Juglans mandshurica, QM: Quercus mongolica), and one conifer-broadleaf forest (CB). Biolog-Eco plates were used to study soil microbial functional diversity. We found that the content of soil total C and total N existed higher under the broadleaf forests (JM, QM) than conifer-broadleaf forest (CB) and coniferous forests (LG, PK). Carbon source utilization capacity and soil microbial activity showed significant variations among different revegetation types. Soil microbial activity of natural secondary forests was significantly higher than planted coniferous forests, and JM created the highest soil microbial activity. Heatmap and PCA plot clearly differentiated among the different samples. The broadleaf forests, conifer-broadleaf forest and coniferous forests were well separated from each other, especially along the PC1, and the position of conifer-broadleaf forest was intermediate. The findings of canonical correspondence analysis (CCA) suggested that soil total C and total N were the main factors affecting soil microbial functional diversity. This study investigated how shifts in soil microbial functional diversity affected by different revegetation types were operational indicators of soil quality

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Section: Different Revegetation Types Contributing To Different Soil supporting

confidence: 92%

Soil Microbial Functional Diversity Responses to Different Revegetation Types in Baishilazi Nature Reserve

Deng¹,

Zhou²,

Bai³

et al. 2019

Pol. J. Environ. Stud.

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“…Evaluation of the magnitude of N 2 O emissions requires a model of the N cycle, and the data needed for calibration and validation of such a model differ from those used to estimate CO 2 and methane (CH 4 ) emissions. Second, N 2 O emissions from soil, one of the major sources, are quite heterogeneous spatially and vary greatly temporally (e.g., Nishina et al 2012;Bellingrath-Kimura et al 2015). In soils, instantaneous N 2 O production occurs within microzones (i.e., hot spots) of high-microbial activity and bursts of N 2 O emissions often occur after rainfall and thawing of frozen soil (e.g., Kim et al 2012;Muhr et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Emissions of nitrous oxide (N2O) from soil surfaces and their historical changes in East Asia: a model-based assessment

Ito

Nishina

Ishijima³

et al. 2018

Prog Earth Planet Sci

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This study assessed historical changes in emissions of nitrous oxide (N 2 O), a potent greenhouse gas and stratospheric ozone-depleting substance, from the soils of East Asia to the atmosphere. A process-based terrestrial ecosystem model (VISIT) was used to simulate the nitrogen cycle and associated N 2 O emissions as a function of climate, land use, atmospheric deposition, and agricultural inputs from 1901 to 2016. The mean regional N 2 O emission rate in the 2000s was estimated to be 2.03 Tg N 2 O year −1 (1.29 Tg N year −1 ; approximately one-third from natural ecosystems and twothirds from croplands), more than triple the rate in 1901. A sensitivity analysis suggested that the increase of N 2 O emissions was primarily attributable to the increase of agricultural inputs from fertilizer and manure. The simulated N 2 O emissions showed a clear seasonal cycle and interannual variability, primarily in response to meteorological conditions and nitrogen inputs. The spatial pattern of the simulated N 2 O emissions revealed hot spots in agricultural areas of China, South Korea, and Japan. The average N 2 O emission factor (emission per unit nitrogen input) was estimated to be 1.38%, a value comparable to previous estimates. These biogeochemical modeling results will facilitate identifying ways to mitigate global warming and manage agricultural practices in this region.

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“…Thus, the precise mechanism for the effect of N fertilizer application on soil respiration needs further investigation. Increased total N content led to a decreased C/N ratio and improved soil CO 2 flux (Bellingrath-Kimura et al, 2015;Pires et al, 2017). Furthermore, soil N/P ratio also influenced autotrophic respiration and microbial activity.…”

Section: Effects Of Fertilization Levelmentioning

confidence: 99%

“…Furthermore, soil N/P ratio also influenced autotrophic respiration and microbial activity. A balanced N/P ratio increased root biomass accumulation and soil CO 2 concentration (Bellingrath-Kimura et al, 2015;Pires et al, 2017;Sun et al, 2018). Nitrogen fertilizer application enhanced the root respiration rate by increasing the availability of soil nutrients, the N content in root, and photosynthate allocation below the ground (root biomass) (Sun et al, 2018).…”

Section: Effects Of Fertilization Levelmentioning

confidence: 99%

Soil CO2 and CH4 concentration dynamics and their relationships with soil physicochemical properties, soil enzyme activity, and root biomass under shallow groundwater level

Zhang¹,

Zhou²,

Zhu³

et al. 2020

Preprint

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Soil CO2 and CH4 concentrations are crucial determinants of crop physiology and soil environment. This study aimed to investigate the dynamics of soil CO2 and CH4 concentrations and their correlations with soil nutrient content, enzymatic activities and root biomass at shallow groundwater levels. Lysimeter experiments were conducted at five groundwater depths (20, 40, 50, 60, and 80 cm) and three fertilizer application rates (low, 75%; normal, 100%; high, 125%). Soil CO2 and CH4 concentrations, physicochemical properties, and enzymatic activities were determined in the three growth stages of winter wheat crop, and plant biomass was measured post-harvest. Groundwater depth significantly (P ≤ 0.001) affected CO2 and CH4 concentrations and root parameters, and their critical values appeared at the groundwater depth of 50–60 cm. Soil water content presented quadratic function relation with CO2 concentration, and exhibited the linear correlation with CH4 concentration. As an aerobic respiration product, soil CO2 concentration showed significant positive correlations with organic matter and total N levels, urease, phosphatase and sucrase activities, and root biomass in winter wheat. Soil CH4 concentration depending on anaerobic microbial activity showed significant correlations with soil nutrients, such as soil organic matter, total N, and available K. Fertilization significantly impacted root parameters (P ≤ 0.001) and shoot biomass (P ≤ 0.05) instead of CO2 and CH4 concentrations. In contrast, groundwater depth emerged as a crucial factor as it affected soil physicochemical properties, soil enzymatic activities, root respiration, and winter wheat growth at shallow groundwater levels.

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Differences in the Spatial Variability Among CO2, CH4, and N2O Gas Fluxes from an Urban Forest Soil in Japan

Cited by 18 publications

References 27 publications

Soil Microbial Functional Diversity Responses to Different Revegetation Types in Baishilazi Nature Reserve

Soil Microbial Functional Diversity Responses to Different Revegetation Types in Baishilazi Nature Reserve

Emissions of nitrous oxide (N2O) from soil surfaces and their historical changes in East Asia: a model-based assessment

Soil CO2 and CH4 concentration dynamics and their relationships with soil physicochemical properties, soil enzyme activity, and root biomass under shallow groundwater level

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