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  1. No Access

    Article

    Interactive effects of crop residue quality and nitrogen fertilization on soil organic carbon priming in agricultural soils

    Soil organic carbon (SOC) priming affects C sequestration in soils, the intensity of which differs depending on residue quality. N fertilization could also alter SOC priming. However, the interaction of crop r...

    Qian Ma, Tetsuhiro Watanabe, **sen Zheng… in Journal of Soils and Sediments (2021)

  2. No Access

    Chapter

    Influence of Climatic Factor on Clay Mineralogy in Humid Asia: Significance of Vermiculitization of Mica Minerals Under a Udic Soil Moisture Regime

    Geology and climate had a clear impact on the clay mineral composition for the soils in humid Asia. In soils derived from mica-free parent materials, such as mafic volcanic rocks, the clay mineral composition ...

    Shinya Funakawa, Tetsuhiro Watanabe in Soils, Ecosystem Processes, and Agricultur… (2017)

  3. No Access

    Chapter

    Parent Materials and Climate Control Secondary Mineral Distributions in Soils of Kalimantan, Indonesia

    Secondary mineral distributions in soils from Kalimantan, Indonesia, were investigated to examine the effects of the parent materials and climate at different elevations on the distributions. B horizon soils w...

    Tetsuhiro Watanabe, Supiandi Sabiham in Soils, Ecosystem Processes, and Agricultur… (2017)

  4. No Access

    Chapter

    Significance of Active Aluminum and Iron on Organic Carbon Preservation and Phosphate Sorption/Release in Tropical Soils

    The effects of active Al and Fe (acid ammonium oxalate-extractable Al and Fe: Alo and Feo) on the preservation of organic carbon (OC) and sorption/release of phosphate in tropical soils are presented. For OC pres...

    Tetsuhiro Watanabe in Soils, Ecosystem Processes, and Agricultural Development (2017)

  5. No Access

    Chapter

    Could Soil Acidity Enhance Sequestration of Organic Carbon in Soils?

    On the basis of field and laboratory measurements of the dynamics of soil organic matter (SOM) in Japan, Thailand, Indonesia, Kazakhstan, and Ukraine having different soil pH levels, we postulate that soil aci...

    Shinya Funakawa, Kazumichi Fujii, Atsunobu Kadono, Tetsuhiro Watanabe… in Soil Carbon (2014)