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Journal Articles

Effect of dry-wet cycles on carbon dioxide release from two different volcanic ash soils in a Japanese temperate forest

Nagano, Hirohiko; Atarashi-Andoh, Mariko; Koarashi, Jun

Soil Science and Plant Nutrition, 65(5), p.525 - 533, 2019/10

 Times Cited Count:1 Percentile:73.86(Plant Sciences)

In the present study, two volcanic ash soils (soil A and B) from a temperate broad-leaved forest in eastern Japan were incubated under repeated dry-wet cycles and continuously constant moisture conditions. The primary aims were to quantify the potential for enhancement of carbon dioxide (CO$$_{2}$$) release owing to increased water fluctuation and to examine differences in the responses of volcanic ash soils with different physicochemical properties. Soil B, rather than soil A, was a typical Andosol. During incubation at 20 $$^{circ}$$C for 120 days with five dry-wet cycles, the CO$$_{2}$$ release rate was measured periodically. Abundance of the stable carbon isotope in CO$$_{2}$$ ($$delta^{13}$$C-CO$$_{2}$$) was measured to capture changes in the origin of decomposed soil organic matter (SOM) owing to the dry-wet cycles. The CO$$_{2}$$ release rate under the dry-wet cycles was up to 49% higher than the values predicted from a parabolic relationship between CO$$_{2}$$ release and water content during incubation under the continuously constant moisture condition. The magnitude of CO$$_{2}$$ release enhancement was 2.7-fold higher in soil B relative to that in soil A. The $$delta^{13}$$C-CO$$_{2}$$ value in the dry-wet cycles was enriched by 0.3-2.3%$$_{0}$$ compared to that during incubation under the continuously constant moisture conditions, suggesting that the decomposition of old and/or well-metabolized SOM was enhanced by the dry-wet cycles. Thus, the present study suggests that Andosols, which have been believed to have a strong SOM stabilization ability, are vulnerable to dry-wet cycles. Then, increased water fluctuation in a future warmer world would have significant potential to stimulate CO$$_{2}$$ release from soils.

Journal Articles

Laboratory examination of greenhouse gaseous and microbial dynamics during thawing of frozen soil core collected from a black spruce forest in Interior Alaska

Nagano, Hirohiko; Kim, Y.*; Lee, B.-Y.*; Shigeta, Haruka*; Inubushi, Kazuyuki*

Soil Science and Plant Nutrition, 64(6), p.793 - 802, 2018/12

 Times Cited Count:2 Percentile:71.05(Plant Sciences)

In this study, we conducted an incubation experiment on a frozen soil core collected from a black spruce forest in Interior Alaska, in order to investigate potential changes in greenhouse gaseous (GHG) and microbial dynamics during thawing of frozen soil. The soil thawing is an important environmental process determining the annual GHG balance in the northern high-latitude ecosystem. A core spanning the ground surface to upper permafrost with a depth of 90 cm was vertically grouped into three layers (top, middle, and bottom layers). Then, 12 soil samples from 3 layers (i.e., 4 soil samples per layer) were incubated for 3 weeks, and net carbon dioxide (Co$$_{2}$$) and methane (CH$$_{4}$$) release/uptake rates were estimated. During the incubation, temperature was changed weekly from 0 to 5, then 10$$^{circ}$$C. The net amounts of CO$$_{2}$$ released by six of the eight soil samples from the top and middle layers were 1.5 to 19.2-fold greater at 5$$^{circ}$$C than at 0$$^{circ}$$C, while the release at 10$$^{circ}$$C was reduced in the cases of three of these six soil samples. Net CH$$_{4}$$ release was the greatest in bottom-layer soil samples incubated at 0$$^{circ}$$C. Then, low but apparent CH$$_{4}$$ release was observed in top and middle-layer soil samples incubated at 0$$^{circ}$$C. At 5 and 10$$^{circ}$$C, net CH$$_{4}$$ release from bottom-layer soil samples was decreased. Then, net CH$$_{4}$$ uptake was observed in the top and the middle-layer soil samples. Both net uptake and release of CH$$_{4}$$ were reduced upon the addition of a chemical inhibitor (i.e., 2-bromoethane sulfonate) of anaerobic methanotrophic and methanogenic activity. The bacterial and archaeal community structures based on 16S rRNA amplicon analysis were changed along the depth, while they were less changed during thawing. Thus, it was found that soil GHG dynamics responded sensitively and variously to thawing, while there was less change in 16S rRNA-based microbial community structures during the thawing prog

Journal Articles

Quantitative analysis of the initial transport of fixed nitrogen in nodulated soybean plants using $$^{15}$$N as a tracer

Hung, N. V. P.*; Watanabe, Shiori*; Ishikawa, Shinji*; Otake, Norikuni*; Sueyoshi, Kuni*; Sato, Takashi*; Ishii, Satomi; Fujimaki, Shu; Oyama, Takuji*

Soil Science and Plant Nutrition, 59(6), p.888 - 895, 2013/12

 Times Cited Count:4 Percentile:79.91(Plant Sciences)

Journal Articles

A Quick incorporation of $$^{13}$$N into the soluble high-molecular compound in rice (${it Oryza sativa}$ L.) roots by application of $$^{13}$$N-labeled nitrate/nitrite

Yoneyama, Tadakatsu*; Suzui, Nobuo; Ishioka, Noriko; Fujimaki, Shu

Soil Science and Plant Nutrition, 57(2), p.279 - 282, 2011/05

 Times Cited Count:3 Percentile:86.45(Plant Sciences)

Journal Articles

Real-time imaging of nitrogen fixation in an intact soybean plant with nodules using $$^{13}$$N-labeled nitrogen gas

Ishii, Satomi; Suzui, Nobuo; Ito, Sayuri; Ishioka, Noriko; Kawachi, Naoki; Otake, Norikuni*; Oyama, Takuji*; Fujimaki, Shu

Soil Science and Plant Nutrition, 55(5), p.660 - 666, 2009/10

 Times Cited Count:11 Percentile:61.71(Plant Sciences)

Journal Articles

Factors controlling potentially mineralizable and recalcitrant soil organic matter in humid Asia

Kadono, Atsunobu; Funakawa, Shinya*; Kosaki, Takashi*

Soil Science and Plant Nutrition, 55(2), p.243 - 251, 2009/04

 Times Cited Count:9 Percentile:67.14(Plant Sciences)

To understand the dynamics of soil organic matter (SOM) in humid Asia, several properties were tested to estimate the amounts of potentially mineralizable carbon (PMC) and nitrogen (PMN) as well as recalcitrant carbon (ROC) and nitrogen (RON). Eighty-nine surface soil samples were collected in Thailand, Indonesia and Japan from cropland and forest ecosystems. The fresh soils were incubated under constant conditions, and the CO$$_{2}$$ and the mineral N from the soils were monitored. PMC and PMN were determined by fitting models to the cumulative curves of the emitted C and N. ROC and RON were determined by the subtraction of PMC and PMN from TC and TN, respectively. Using multiple regression analysis with the stepwise method, PMC and PMN was well estimated by carbon and nitrogen content of light fraction (LFC and LFN) and clay content, while ROC and RON were estimated by LF-OM, amorphous materials and clay content, suggesting the importance of parent materials in this region.

Journal Articles

Analysis of NO$$_{3}$$ interception of the parasitic angiosperm ${it Orobanche}$ spp. using a positron-emitting tracer imaging system and $$^{13}$$NO$$_{3}$$$$^{-}$$; A New method for the visualization and quantitative analysis of the NO$$_{3}$$ interception ratio

Kawachi, Naoki; Fujimaki, Shu; Sakamoto, Koichi*; Ishioka, Noriko; Matsuhashi, Shimpei; Sekimoto, Hitoshi*

Soil Science and Plant Nutrition, 54(3), p.408 - 416, 2008/06

 Times Cited Count:8 Percentile:70.96(Plant Sciences)

The root parasitic plants ${it Orobanche}$ spp. (broomrapes) seriously affect agricultural production. A visualization and quantitative analytical method for the interception of nutrients was established using a positron-emitting tracer imaging system and $$^{13}$$NO$$_{3}$$$$^{-}$$. By using this analytical method that involves volume normalization with $$^{18}$$F$$^{-}$$ images, the nitrogen nutrient interception ratio of the ${it Orobanche}$ spp. was calculated as 73.6$$pm$$3.9% in a host-parasite system of red clover (${it Trifolium pratense}$ L.).

Journal Articles

$$^{52}$$Mn translocation in barley monitored using a positron-emitting tracer imaging system

Tsukamoto, Takashi*; Nakanishi, Hiromi*; Kiyomiya, Shoichiro*; Watanabe, Satoshi; Matsuhashi, Shimpei; Nishizawa, Naoko*; Mori, Satoshi*

Soil Science and Plant Nutrition, 52(6), p.717 - 725, 2006/12

 Times Cited Count:29 Percentile:36.93(Plant Sciences)

Journal Articles

Quantitative modeling of photoassimilate flow in an intact plant using the Positron Emitting Tracer Imaging System (PETIS)

Matsuhashi, Shimpei; Fujimaki, Shu; Kawachi, Naoki; Sakamoto, Koichi; Ishioka, Noriko; Kume, Tamikazu

Soil Science and Plant Nutrition, 51(3), p.417 - 423, 2005/06

 Times Cited Count:21 Percentile:47.08(Plant Sciences)

no abstracts in English

Journal Articles

Visualization of $$^{15}$$O-water flow in tomato and rice in the light and dark using a positron-emitting tracer imaging system (PETIS)

Mori, Satoshi*; Kiyomiya, Shoichiro*; Nakanishi, Hiromi*; Ishioka, Noriko; Watanabe, Satoshi; Osa, Akihiko; Matsuhashi, Shimpei; Hashimoto, Shoji; Sekine, Toshiaki; Uchida, Hiroshi*; et al.

Soil Science and Plant Nutrition, 46(4), p.975 - 979, 2000/12

 Times Cited Count:27 Percentile:40.54(Plant Sciences)

no abstracts in English

Journal Articles

Further evidence for gaseous CO$$_{2}$$ transport in relation to root uptake of CO$$_{2}$$ in rice plant

*; ;

Soil Science and Plant Nutrition, 30(2), p.125 - 136, 1984/00

 Times Cited Count:35 Percentile:15(Plant Sciences)

no abstracts in English

Journal Articles

TTC reduction by submerged soils

*; *;

Soil Science and Plant Nutrition, 29(4), p.489 - 497, 1983/00

 Times Cited Count:13 Percentile:37.16(Plant Sciences)

no abstracts in English

Journal Articles

Tracer Study on Preferential Uptake of Germanium by Rice Plant

; Ko-Ling Yen*

Soil Science and Plant Nutrition, 18(5), p.173 - 178, 1972/00

no abstracts in English

Journal Articles

Further Study on Iodine Toxicity in Relation to 「Reclamation Akagare」 Disease of Lowland Rice

; *

Soil Science and Plant Nutrition, 16(5), p.192 - 194, 1971/00

no abstracts in English

Journal Articles

Variable Bromine Content in Soil; Plant and Milk

; K0-Ling Yeh*

Soil Science and Plant Nutrition, 17(3), p.127 - 130, 1970/00

no abstracts in English

Journal Articles

Absorption of radioactive strontium by soil, especially in relation to nature cesium

; K.Yeh*; S.Mitsui*

Soil Science and Plant Nutrition, 1, p.152 - 156, 1961/00

no abstracts in English

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