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Journal Articles

Comprehensive increase in CO$$_{2}$$ release by drying-rewetting cycles among Japanese forests and pastureland soils and exploring predictors of increasing magnitude

Suzuki, Yuri*; Hiradate, Shuntaro*; Koarashi, Jun; Atarashi-Andoh, Mariko; Yomogida, Takumi; Kanda, Yuki*; Nagano, Hirohiko*

Soil (Internet), 11(1), p.35 - 49, 2025/01

 Times Cited Count:0 Percentile:0.00(Soil Science)

Journal Articles

Sequential loss-on-ignition as a simple method for evaluating the stability of soil organic matter under actual environmental conditions

Sato, Yuhi*; Ishizuka, Shigehiro*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Nagano, Hirohiko*; Koarashi, Jun

Environmental Research, 239(Part 1), p.117224_1 - 117224_9, 2023/12

 Times Cited Count:3 Percentile:48.48(Environmental Sciences)

The stability of soil organic matter (SOM) is important for improving our understanding of the global carbon cycle and ongoing climate change. This study examined the applicability of loss-on-ignition of soil with a stepwise increase in temperature (SIT-LOI) to evaluate the stability of the SOM using soil samples from Japan having different organic matter (OM) and mineral contents and different mean residence times (MRTs), estimated from radiocarbon analysis, for SOM. As the result of this examination, SIT-LOI data was strongly correlated with MRTs. This clearly suggests that SIT-LOI can be an indicator evaluating the stability of SOM in actual environments.

Journal Articles

Formation and mobility of soil organic carbon in a buried humic horizon of a volcanic ash soil

Wijesinghe, J. N.*; Koarashi, Jun; Atarashi-Andoh, Mariko; Kokubu, Yoko; Yamaguchi, Noriko*; Sase, Takashi*; Hosono, Mamoru*; Inoue, Yuzuru*; Mori, Yuki*; Hiradate, Shuntaro*

Geoderma, 374, p.114417_1 - 114417_10, 2020/09

 Times Cited Count:12 Percentile:47.65(Soil Science)

Oral presentation

Source of nitrogen acquired by plants grown on Nakoudojima Island, Ogasawara, Japan, estimated from $$delta$$$$^{15}$$N value

Hiradate, Shuntaro*; Miyakuni, Ryo*; Sato, Nozomu*; Atarashi-Andoh, Mariko; Koarashi, Jun; Kachi, Naoki*

no journal, , 

no abstracts in English

Oral presentation

Rewetting dried soils for elucidating SOM dynamics in andic soils of a Japanese temperate forest

Nagano, Hirohiko*; Atarashi-Andoh, Mariko; Tanaka, Sota*; Hiradate, Shuntaro*; Fujii, Kazumichi*; Koarashi, Jun

no journal, , 

Oral presentation

Effects of water fluctuation on soil carbon dioxide release; An Evaluation with incubation experiments of ten soils from six Japanese broadleaved forests

Suzuki, Yuri*; Nagano, Hirohiko*; Kanda, Yuki*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Soil carbon dynamics revealed by radiocarbon

Koarashi, Jun; Atarashi-Andoh, Mariko; Liang, N.*; Kondo, Toshiaki*; Takagi, Kentaro*; Hirano, Takashi*; Takagi, Masahiro*; Ishida, Sachinobu*; Teramoto, Munemasa*; Nagano, Hirohiko*; et al.

no journal, , 

no abstracts in English

Oral presentation

Exploring predictors for the increase in soil CO$$_{2}$$ release by dry-wet cycles

Nagano, Hirohiko*; Suzuki, Yuri*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

Oral presentation

Warming effects on the quantity and quality of organic carbon in Japanese forest surface soils

Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Kentaro*; Kondo, Toshiaki*; Teramoto, Munemasa*; Nagano, Hirohiko; Kokubu, Yoko; Takagi, Masahiro*; Ishida, Sachinobu*; Hiradate, Shuntaro*; et al.

no journal, , 

It is possible that global warming will promote the decomposition of soil organic carbon (SOC) and cause further global warming. In this study, the quantity and quality of SOC (carbon and nitrogen content, stable and radioactive carbon isotope composition, etc.) were investigated in warming and control plots at five forest sites in Japan, where long-term soil warming experiments have been conducted. Results show no remarkable difference in the quantity and quality of SOC stored in surface (0-20 cm) soils between the warming and control plots, suggesting the warming-induced increase in the soil respiration will continue over the next decade, probably due to the abundant SOC storage in Japanese forest surface soils.

Oral presentation

The Rate of vertical translocation of soil organic carbon fractions stored in buried humic horizon from an Andosol

Wijesinghe, J.*; Koarashi, Jun; Atarashi-Andoh, Mariko; Kokubu, Yoko; Yamaguchi, Noriko*; Sase, Takashi*; Hosono, Mamoru*; Inoue, Yuzuru*; Mori, Yuki*; Hiradate, Shuntaro*

no journal, , 

Oral presentation

Stocks and dynamics of organic carbon in Japanese forest surface soils and their response to long-term experimental warming

Koarashi, Jun; Atarashi-Andoh, Mariko; Takagi, Kentaro*; Kondo, Toshiaki*; Teramoto, Munemasa*; Nagano, Hirohiko; Kokubu, Yoko; Takagi, Masahiro*; Ishida, Sachinobu*; Hiradate, Shuntaro*; et al.

no journal, , 

no abstracts in English

Oral presentation

Estimation of carbon accumulation rate in a volcanic ash soil in Aomori

Hiradate, Shuntaro*; Wijesinghe, J. N.*; Koarashi, Jun; Atarashi-Andoh, Mariko; Sase, Takashi*; Hosono, Mamoru*; Inoue, Yuzuru*; Mori, Yuki*

no journal, , 

no abstracts in English

Oral presentation

Increased soil CO$$_{2}$$ release by increased moisture fluctuation; Slowdowns in high temperature

Nagano, Hirohiko*; Suzuki, Yuri*; Kanda, Yuki*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Physicochemical and isotopic characteristics of charred plant fragments in Japanese soils

Nishimura, Shusaku; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Water extractable organic matter from air-dry soil to predict soil carbon dynamics

Nagano, Hirohiko*; Suzuki, Yuri*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Increased soil CO$$_{2}$$ release by increased moisture fluctuation; Volcanic ash soils and non-volcanic ash soils

Nagano, Hirohiko*; Suzuki, Yuri*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Metabolism analysis of organic matter fractions in a Black soil and a Brown forest soil by using $$delta$$$$^{15}$$N

Yamakita, Eri*; Xinping, D.*; Wijesinghe, J. N.*; Koarashi, Jun; Atarashi-Andoh, Mariko; Ishizuka, Shigehiro*; Senda, Ryoko*; Mori, Yuki*; Hiradate, Shuntaro*

no journal, , 

no abstracts in English

Oral presentation

Soil microbial fluctuation and CO$$_{2}$$ release increase under dry-wet cycles

Suzuki, Yuri*; Nagano, Hirohiko*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Abe, Yukiko; Koarashi, Jun; Nakayama, Masataka

no journal, , 

Oral presentation

Effects of increased moisture fluctuation on soil microorganisms; An Investigation using ten soils in Japan

Suzuki, Yuri*; Nagano, Hirohiko*; Hiradate, Shuntaro*; Atarashi-Andoh, Mariko; Abe, Yukiko; Nakayama, Masataka; Koarashi, Jun

no journal, , 

no abstracts in English

Oral presentation

Comparison of depth profile properties between a Silandic Andosol and an Aluandic Andosol collected under natural forests in Miyazaki, Japan

Alam, M. M.*; Yamakita, Eri*; Mori, Yuki*; Koarashi, Jun; Atarashi-Andoh, Mariko; Abe, Yukiko; Nakayama, Masataka; Hiradate, Shuntaro*

no journal, , 

28 (Records 1-20 displayed on this page)