Search Results - "Iwata, Yukiyoshi"

The Preliminary Study of Water-Retention Related Properties of Biochar Produced from Various Feedstock at Different Pyrolysis Temperatures by Kameyama, Koji, Miyamoto, Teruhito, Iwata, Yukiyoshi

“…Physicochemical properties of biochar, which are used as a soil amendment material in agricultural fields, are different depending on biomass feedstock and…”
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Effects of snow cover on soil freezing, water movement, and snowmelt infiltration: A paired plot experiment by Iwata, Yukiyoshi, Hayashi, Masaki, Suzuki, Shinji, Hirota, Tomoyoshi, Hasegawa, Shuichi

“…A dramatic reduction in soil frost depth has been reported for Hokkaido Island of northern Japan over the last 20 years. Since soil frost strongly affects…”
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Comparison of plant Cd accumulation from a Cd-contaminated soil amended with biochar produced from various feedstocks by Kameyama, Koji, Miyamoto, Teruhito, Iwata, Yukiyoshi

“…The bioavailability of cadmium (Cd) in agricultural soils is a significant health concern due to the potential risk of human exposure via foods grown in…”
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Effects of a snow-compaction treatment on soil freezing, snowmelt runoff, and soil nitrate movement: A field-scale paired-plot experiment by Iwata, Yukiyoshi, Yanai, Yosuke, Yazaki, Tomotsugu, Hirota, Tomoyoshi

“…[Display omitted] •Snow-compaction treatment produced a thick frozen soil layer during the winter months.•This thick frozen layer induced large amounts of…”
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Influences of feedstock and pyrolysis temperature on the nitrate adsorption of biochar by Kameyama, Koji, Miyamoto, Teruhito, Iwata, Yukiyoshi, Shiono, Takahiro

“…Biochar (BC), charcoal produced through the pyrolysis of biomass, is reported to adsorb dissolved nitrate-nitrogen (NO 3 -N). The NO 3 -N adsorption properties…”
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Effects of Biochar Produced From Sugarcane Bagasse at Different Pyrolysis Temperatures on Water Retention of a Calcaric Dark Red Soil by Kameyama, Koji, Miyamoto, Teruhito, Iwata, Yukiyoshi, Shiono, Takahiro

“…ABSTRACTBiochar (BC) is a promising soil amendment that can enhance water retention and plant-available water capacity while mitigating CO2 emissions. We…”
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Biochar Impacts on Crop Productivity and Greenhouse Gas Emissions from an Andosol by Koga, Nobuhisa, Shimoda, Seiji, Iwata, Yukiyoshi

“…To assess the impacts of biochar application on crop productivity and global warming mitigation, a 4‐yr field experiment was conducted in a well‐drained…”
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Optimum soil frost depth to alleviate climate change effects in cold region agriculture by Yanai, Yosuke, Iwata, Yukiyoshi, Hirota, Tomoyoshi

“…On-farm soil frost control has been used for the management of volunteer potatoes ( Solanum tuberosum L.), a serious weed problem caused by climate change, in…”
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Accumulation of nitrous oxide and depletion of oxygen in seasonally frozen soils in northern Japan – Snow cover manipulation experiments by Yanai, Yosuke, Hirota, Tomoyoshi, Iwata, Yukiyoshi, Nemoto, Manabu, Nagata, Osamu, Koga, Nobuhisa

“…It has been suggested that soil-thawing and snow-melting are critical triggers for vigorous emissions of nitrous oxide (N 2O) from soils in cold regions…”
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Bound Water, Phase Configuration, and Dielectric Damping Effects on TDR‐Measured Apparent Permittivity by Dyck, Miles, Miyamoto, Teruhito, Iwata, Yukiyoshi, Kameyama, Koji

“…Core IdeasFrequency‐dependent bound water permittivity influences TDR‐measured Ka.Predictive power of frequency‐independent dielectric mixing models is…”
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Factors and Mechanisms Affecting the Air Temperature Distribution on a Clear Winter Night in a Snow-Covered Mesoscale Plain by FUKUSHIMA, Hirokazu, YAZAKI, Tomotsugu, HIROTA, Tomoyoshi, IWATA, Yukiyoshi, WAJIMA, Atsushi, YOKOTA, Ayumi

“…There is an increasing need for accurate winter agrometeorological forecasts, which is facilitated by a better understanding of the evolution process of…”
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Winter Nocturnal Air Temperature Distribution for a Mesoscale Plain of a Snow-Covered Region: Field Meteorological Observations and Numerical Simulations by Yazaki, Tomotsugu, Fukushima, Hirokazu, Hirota, Tomoyoshi, Iwata, Yukiyoshi, Wajima, Atsushi, Yokota, Ayumi

“…Winter air temperatures strongly affect crop overwintering and cold resource usage. To clarify how winter air temperature distributions are formed in a…”
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Effects of frozen soil and snow cover on cold-season soil water dynamics in Tokachi, Japan by Iwata, Yukiyoshi, Hirota, Tomoyoshi, Hayashi, Masaki, Suzuki, Shinji, Hasegawa, Shuichi

“…Despite the potential impact of winter soil water movements in cold regions, relatively few field studies have investigated cold-season hydrological processes…”
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Influence of snow-cover and soil-frost variations on continuously monitored CO 2 flux from agricultural land by Ohkubo, Shinjiro, Iwata, Yukiyoshi, Hirota, Tomoyoshi

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Comparison of soil frost and thaw depths measured using frost tubes and other methods by Iwata, Yukiyoshi, Hirota, Tomoyoshi, Suzuki, Takeshi, Kuwao, Kazunobu

“…Frost tubes filled with methylene blue solution are commonly used tools for measuring soil frost and thaw depths in the field. To quantify the accuracy of this…”
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Effective killing of volunteer potato (Solanum tuberosum L.) tubers by soil frost control using agrometeorological information—An adaptive countermeasure to climate change in a cold region by Yazaki, Tomotsugu, Hirota, Tomoyoshi, Iwata, Yukiyoshi, Inoue, Satoshi, Usuki, Kazuei, Suzuki, Takeshi, Shirahata, Masaki, Iwasaki, Akeo, Kajiyama, Tsutomu, Araki, Kazuya, Takamiya, Yasuhiro, Maezuka, Kenji

“…•We examined soil frost control effects on the survival of unharvested potato tubers.•Soil frost depth was estimated using the extended force-restore…”
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Snow cover manipulation in agricultural fields: as an option for mitigating greenhouse gas emissions by Yanai, Yosuke, Hirota, Tomoyoshi, Iwata, Yukiyoshi, Nemoto, Manabu, Koga, Nobuhisa, Nagata, Osamu, Ohkubo, Shinjiro

“…Short-term N₂O emission occurs in relation to snowmelt within seasonally frozen soil. To understand the effects of changing winter climates on the N₂O flux,…”
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Effects of saturated hydraulic conductivity on volunteer potato (Solanum tuberosum L.) tuber survival by Iwata, Yukiyoshi, Hirota, Tomoyoshi, Yazaki, Tomotsugu, Iwasaki, Akeo, Suzuki, Takeshi, Inoue, Satoshi, Usuki, Kazuei

“…In situ observations were conducted at eight fields in the Tokachi region of the northernmost island of Japan to assess the effects of soil physical conditions…”
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Influences of winter climatic conditions on the relation between annual mean soil and air temperatures from central to northern Japan by Yazaki, Tomotsugu, Iwata, Yukiyoshi, Hirota, Tomoyoshi, Kominami, Yasuhiro, Kawakata, Toshikazu, Yoshida, Takeo, Yanai, Yosuke, Inoue, Satoshi

“…Annual mean soil temperature (STA) is an important factor to evaluate the potential of the productivity of agricultural fields and the amount of ground thermal…”
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Monitoring over-winter soil water dynamics in a freezing and snow-covered environment using a thermally insulated tensiometer by Iwata, Yukiyoshi, Hirota, Tomoyoshi

“…Water potential below a frozen soil layer was continuously monitored over an entire winter period (using thermally insulated tensiometers sheltered in a heated…”
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