Environmental Information Science
Online ISSN : 2435-4295
Print ISSN : 0389-6633
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Volume 53, Issue 2
Environmental Information Science, Vol.53, No.2
Displaying 1-17 of 17 articles from this issue
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Contents
Special Issue: Energy Storage: The Key to Unlocking a Carbon-Neutral Future
Series: Frontier of Environmental Policies
Research Paper
  • Effects of Bamboo Biochar on the Levels of Soil Water Holding Capacity and Yields of Leaf Lettuce in a Continuous Cropping System
    Nao TAKARADA, Akihiro OOI, Kazue UEMATSU, Yoshiki HARADA
    2024 Volume 53 Issue 2 Pages 47-54
    Published: July 15, 2024
    Released on J-STAGE: September 30, 2024
    DOIhttps://doi.org/10.11492/eis.53.2_47
    JOURNAL FREE ACCESS
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    Soil amendments using bamboo biochar could enhance sustainability of crop production by improving levels of water and nutrient storage capacity. In this study, we grew leaf lettuce (Lactuca sativa var.crispa) in the field through two continuous cropping cycles without supplemental irrigation or fertilizer, testing effects of application rates of bamboo biochar (0, 10, 20, 30, 40％ of soil volume) and organic fertilizer (100, 200 kg N ha -1 ) on levels of yield and water holding capacity. We found that the application of bamboo biochar increased levels of water holding capacity, while bamboo biochar’s application rates less than 10% achieved the highest yield levels. Yield levels did not decrease over two continuous cropping cycles, only for samples with 100 kg N ha -1 . Further research is needed for understanding effects of bamboo biochar’s particle size distributions, and effects specific to soil types.
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  • Challenges and Proposals for Regional Community Transitions with Offshore Wind Projects
    A Case Study in Akita Prefecture, Japan
    Kensuke YAMAGUCHI, Satoshi TAJIMA, Tomotaka KATSUNO, Hideaki SHIROYAMA
    2024 Volume 53 Issue 2 Pages 55-64
    Published: July 15, 2024
    Released on J-STAGE: September 30, 2024
    DOIhttps://doi.org/10.11492/eis.53.2_55
    JOURNAL FREE ACCESS
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    This study analyses the impact of offshore wind projects on regional communities by focusing on the socio-technical regime at a regional scale. In Akita Prefecture, Japan, offshore wind farms have been introduced ahead of other regions in Japan under the Act on Promoting the Utilization of Sea Areas for the Development of Marine Renewable Energy Power Generation Facilities. Taking the Prefecture as a study area, we investigate the current situation and identify issues in the process of introducing offshore wind projects. To achieve a radical transformation (or "transition") of the socio-technical regime beyond existing social and authority relations, co-evolution is required between different subsystems, triggered by strengthened cooperation in the transition arena. In Akita Prefecture, the industry and polity subsystems have individually improved, whereas inter-subsystem co-evolution is not evident. We envisage that encouraging co-evolution among subsystems, founded on a mature transition arena, can facilitate a future transition desirable for local society.
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