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| 1 | Effects of nitrogen sources and glucose on the con- sumption of ethylene and methane by temperate volcanic forest surface soils显示文摘There is limited knowledge with regard to the consumption of ethylene (C2H4) and methane (CH4) in volcanic forest soils containing low microbial carbon-to-organic carbon ratio, and to the responses of both consumptions to nitrogen and carbon additions. Temperate volcanic forest surface soils under three forest stands (e.g. Pinus sylvestris L., Cryptomeria japonica and Quercus serrata) were used to compare CH4 and C2H4 consumption by forest soils, and to study the effects of nitrogen sources and glucose on both consumptions. There was a good parallel between CH4 and C2H4 consumption by for- est soils, but mineralization reduced CH4 consumption rather than C2H4 consumption in forest soils, particularly in a Pinus forest soil. The stimulatory effect of glucose addition on both CH4 and C2H4 consumption by forest soils was increased by increasing the pre-incubation period after glucose addi- tion, and a largest stimulation occurred in the Pinus forest soil. The addition of KNO3-N at the rate of 100 μg·g1 significantly reduced the consumptions of both C2H4 and CH4 by forest soils (P≤0.05). In the presence of urea plus dicyandiamide, the consumption rates of C2H4 and CH4 by forest soils were higher than those in the KNO3-N and urea-N treated soils at the same N rate (P≤0.05), but were similar to those of the control. Hence, under experimental conditions, there was a strong inhibitory effect of NO3 rather than NH4+ addition on the CH4 and C2H4 consumption in these forest soils. When amount of the added NO3-N increased up to more than 2―3 times the soil initial NO3-N concentrations, both C2H4 and CH4 consumption rates were reduced to 10%―20% of the rates in soils without nitrate addition. By comparing the three forest stands, it was shown that there was a smallest effective concentration of the added nitrate that could inhibit C2H4 and CH4 consumption in the Pinus forest soil, which indicated that C2H4 and CH4 consumption of the soil was more sensitive to NO3-N addition. | XU XingKai INUBUSHI Kazuyuki | 2007 | Chinese Science Bulletin2007,52,23: | 10 |
| 2 | Measurement of ethylene and methane production in a temperate forest soil using inhibition of acetylene and carbon monoxide显示文摘We studied in the laboratory the effects of acetylene (C2H2) concentrations on the accumulation and consumption of ethylene and methane in a temperate pine forest soil, and in situ ethylene and methane production and flush effects of nitrogen sources on both productions in the pine forest stand (Pinus sylvestris L.). The addition of C2H2 at concentrations more than 50 Pa C2H2 in the headspace caused a more than 95% reduction in rates of ethylene and methane consumption in forest soil compared to those with no C2H2. Furthermore, addition of acetylene within a range of 50 to 10, 000 Pa C2H2 induced a similar rate of methane accumulation in forest soil. Hence, it can be concluded that presence of more than 50 Pa C2H2 in the headspace is an effective method to measure methane production in forest soil. The addition of C2H2 at concentrations more than 50 Pa C2H2 induced an increasing concentration of ethylene in the headspace (P≤0.05), indicating the reduction of acetylene to ethylene in forest soil. Using inhibition of 0.5 kPa C2H2 in combination with 5 kPa carbon monoxide that inhibits the reduction of acetylene in a short term, it was observed that there was a larger in situ methane production rate (218 ± 26 μg C m-2 h-1 (μg C per square meter per hour, the same below)) than in situ ethylene produc-tion rate (92 ± 6 μg C m-2 h-1) in the pine forest soil. The addition of nitrogen sources such as urea, urea plus a nitrification inhibitor dicyandiamide, and potassium nitrate, could induce a 5-fold greater in-crease in rates of in situ ethylene and methane production compared to those in the control, particu-larly in the latter (P≤0.05). The results can promote in situ measurement of ethylene and methane production in forest soils at different sites. | XU XingKai INUBUSHI Kazuyuki | 2008 | Chinese Science Bulletin2008,53,7: | 5 |
| 3 | Effect of Biogas Digested Liquid on CH_4 and N_2O Flux in Paddy Ecosystem显示文摘Biogas production generates digested slurry as a byproduct. It can be used as a fertilizer especially after its conversion into digested liquid. A pot based study was conducted in order to evaluate the effect of the application of digested liquid on CH 4 and N 2 O flux, and plant biomass in paddy. Analysis revealed that digested liquid treated soils released more CH 4 compared to ammonium sulphate and the control. Ammonium sulphate treated soil emitted the highest N 2 O whereas digested liquid application decreased its emission significantly. Further, the cumulative emission over 101 d of the experiment was found to be higher for CH 4(16.9 to 29.9 g m-2) compared to N 2 O(-49.3 to 18.9 mg m-2) for all treatments. Digested liquid application had positive impact on plant variables such as panicle number and weight of panicles. This study suggests that digested liquid application significantly decrease N 2 O emission and increase CH 4 emission possibly due to affecting the availability of organic C in the soil to microbial activity for methanogenesis. Another possibility for enhancing CH 4 emission by following biogas digested liquid could be attributed to the increase in plant biomass. | Ankit Singla Kazuyuki Inubushi | 2014 | Journal of Integrative Agriculture2014,13,3: | 3 |
| 4 | Effect of changing groundwater levels caused by land-use changes on greenhouse gas fluxes from tropical peat lands显示文摘 | Furukawa Y Inubushi K Ali M | 2005 | Nutrient Cycling in Agroecosystems2005,71,: | 1 |
| 5 | Measurement of microbial biomass C and N in paddy soils by the fumigation extraction method显示文摘 | Shibahara F Inubushi K | 1995 | Soil Sci Plant Nutr1995,46,: | 1 |
| 6 | Effects of elevated carbon dioxide concentration on biological nitrogen mineralization and carbon decomposition in submerged rice soil 显示文摘 | Cheng WG Inubushi K Yagi K | 2001 | Biol Fert Soils2001,34,: | 1 |
| 7 | NMR studies of monoliganded Fe-Cohybrid hemoglobins:Their quaternary structure and proximal histidine coordination显示文摘 | Inubushi T Ikeda-saito M Yonetani T | 1986 | J Am Chem Soc1986,108,13: | 1 |
| 8 | Production and consumption of ethylene in temperate volcanic forest surface soils显示文摘 | Xu X K Inubushi K | 2007 | Eur J Soil Sci2007,58,: | 1 |
| 9 | Effect of changing groundwater levels caused by land-use changes on greenhouse gas fluxes from tropical peat lands显示文摘 | Furukawa Y Inubushi K Ali M | 2005 | Nutrient Cycling in Agroecosystems2005,71,1: | 1 |
| 10 | Quantitative measurements of cardiac phosphorus metabolites in coronary artery disease by 31 P magnetic resonance spectroscopy显示文摘 | Yabe T Mitsunami K Inubushi T | 1995 | Circulation1995,92,: | 1 |
| 11 | Effect of rice residues on carbon dioxide and nitrous oxide emissions from a paddy soil of subtropical China显示文摘 | Lou YS Ren LX Li ZP Zhang TL Inubushi K | 2007 | Water Air and Soil Pollution2007,178,: | 1 |
| 12 | L-tryptophan suppresses rise in blood glucose and preserves insulin secretion in type-2 diabetes mellitus rats 显示文摘 | Inubushi T Kamemura N Oda M | 2012 | J Nutr Sci Vitaminol(Tokyo)2012,58,6: | 1 |
| 13 | Effect of hyperactivity of the lateral pterygoid muscle on the tempommandibular joint disk 显示文摘 | Tanaka E Hirose M Inubushi T | 2007 | J Biomech Eng2007,129,6: | 1 |
| 14 | Effect of biochar on CH4 and N20 emission from soils vegetated with paddy显示文摘 | SINGLA A INUBUSHI K | 2014 | Paddy and Water Environment2014,12,1: | 1 |
| 15 | Mech- anism of formation of nanocrystalline ZnO particals through the reaction of with NaOH in EtOH 显示文摘 | Yoichi Inubushi Ryoji Takami Mitsunobu Iwasaki | 1998 | Journal of Colloid and Interface Science1998,200,2: | 1 |
| 16 | Effect of land-use changes on nitrous oxide (N20) emission from tropical peatlands 显示文摘 | Hadi A Inubushi K Purnomo E | 2000 | Chemosphere-Global Change Science2000,2,: | 1 |
| 17 | Feasible suppression technique of methane emission from paddy soil by iron amendment显示文摘 | Furukawa Y Inubushi K | 2002 | Nutrient Cycling in Agroecosystems2002,,64: | 1 |
| 18 | Incidence and characteristics of uterine leiomyomas with FDG uptake显示文摘 | Sadahiko Nishizawa Masayuki Inubushi Aki Kido Masao Miyagawa Takeshi Inoue Katsura Shinohara Makoto Kajihara | 2008 | Annals of Nuclear Medicine2008,,9: | 1 |
| 19 | Effects of N sources and methane concentrations on methane uptake potential of a typical coniferous forest and its adjacent orchard soil显示文摘 | Xingkai Xu Kazuyuki Inubushi | 2004 | Biology and Fertility of Soils2004,,4: | 1 |
| 20 | Effects of ultra- sound on the proliferation and differentiation of cemento- blast lineage cells 显示文摘 | Inubushi T Tanaka E Rego EB | 2008 | J Periodontol2008,79,10: | 1 |