The Experts below are selected from a list of 176091 Experts worldwide ranked by ideXlab platform

Ryosuke Shibasaki - One of the best experts on this subject based on the ideXlab platform.

  • Mapping the global supply and Demand Structure of rice
    Sustainability Science, 2009
    Co-Authors: Kan Ichiro Matsumura, Robert J. Hijmans, Yann Chemin, Christopher D. Elvidge, Kenji Sugimoto, Yang Won Lee, Ryosuke Shibasaki
    Abstract:

    Rice plays a major role in the global supply and Demand for sustainable food production. The constraints of maintaining sustainable rice production are closely linked to the relationship between the distribution patterns of human activity on the planet and economic growth. Global patterns of rice production can be mapped by using various criteria linked to domestic income, population patterns, and associated satellite brightness data of rice-producing regions. Prosperous regions have more electric lighting, and there are documented correlations between gross domestic product (GDP) and nighttime light. We chose to examine global rice production patterns on a geographical basis. For the purposes of this study, each country is considered to be made up of regions, and rice production is discussed in terms of regional distribution. A region is delineated by its administrative boundaries; the number of regions where rice is produced is about 13,839. We used gridded spatial population distribution data overlain by nocturnal light imagery derived from satellite imagery. The resultant relationship revealed a correlation between regional income (nominal values of GDP were used) and rice production in the world. The following criteria were used to examine the supply and Demand Structure of rice. Global rice consumption = “caloric rice consumption per capita per day” multiplied by “regional population values”. Regional rice yields = “country-based production” divided by “harvested area” (multiple harvests are taken into account). Regional rice production = “regional harvested areas” multiplied by “rice yield values”. We compared regional rice consumption and production values according to these methods. Analysis of the data sets generated a map of rice supply and Demand. Inter-regional shipping costs were not accounted for. This map can contribute to the understanding of food security issues in rice-producing regions and to estimating potential population values in such regions.

Feng Shi - One of the best experts on this subject based on the ideXlab platform.

  • Grouping of Water Supply-and-Demand Structure in the Yellow River Basin of China: Focusing on Balance between Groundwater and Surface-water
    Sustainability, 2019
    Co-Authors: Toshiaki Ichinose, Kai Liu, Akio Onishi, Feng Shi
    Abstract:

    The research purpose of this study was to uncover the grouping of the water supply-and-Demand Structure in the Yellow River Basin (YRB) of China, focusing on the balance between groundwater and surface-water. Comparing the Structure of water usage and the Structure of groundwater usage estimated by previous studies in each region, 35 municipalities were selected and they were classified into 12 catchments in focusing on the geographical location and the similarity of the shape of the Structure of water supply-and-Demand. In the upper reaches, surface-water is mainly used and the share of agricultural usage is small, therefore, seasonal variability of groundwater usage is small. On the other hand, in the middle and the lower reaches, the share of groundwater is large and the share of agricultural usage is large, therefore, seasonal variability of groundwater usage is large. Especially, these characteristics are obvious in the Loess Plateau. In addition, surface-water is mainly used again in the lowermost reaches. The results qualitatively identify the spatial pattern of the classification of water supply-and-Demand Structure and investigate the geographical heterogeneity within each catchment. Performing a GIS (Geographic Information System) -based estimation is meaningful for grasping the geospatial pattern of water supply-and-Demand Structure and for providing an area-by-area report of the situation of the water resource usage. It is hoped that this study serves as an academic reference for optimizing the water resource management and for providing some policy recommendations on resource’s sustainability by using a GIS-based approach.

Kan Ichiro Matsumura - One of the best experts on this subject based on the ideXlab platform.

  • Mapping the global supply and Demand Structure of rice
    Sustainability Science, 2009
    Co-Authors: Kan Ichiro Matsumura, Robert J. Hijmans, Yann Chemin, Christopher D. Elvidge, Kenji Sugimoto, Yang Won Lee, Ryosuke Shibasaki
    Abstract:

    Rice plays a major role in the global supply and Demand for sustainable food production. The constraints of maintaining sustainable rice production are closely linked to the relationship between the distribution patterns of human activity on the planet and economic growth. Global patterns of rice production can be mapped by using various criteria linked to domestic income, population patterns, and associated satellite brightness data of rice-producing regions. Prosperous regions have more electric lighting, and there are documented correlations between gross domestic product (GDP) and nighttime light. We chose to examine global rice production patterns on a geographical basis. For the purposes of this study, each country is considered to be made up of regions, and rice production is discussed in terms of regional distribution. A region is delineated by its administrative boundaries; the number of regions where rice is produced is about 13,839. We used gridded spatial population distribution data overlain by nocturnal light imagery derived from satellite imagery. The resultant relationship revealed a correlation between regional income (nominal values of GDP were used) and rice production in the world. The following criteria were used to examine the supply and Demand Structure of rice. Global rice consumption = “caloric rice consumption per capita per day” multiplied by “regional population values”. Regional rice yields = “country-based production” divided by “harvested area” (multiple harvests are taken into account). Regional rice production = “regional harvested areas” multiplied by “rice yield values”. We compared regional rice consumption and production values according to these methods. Analysis of the data sets generated a map of rice supply and Demand. Inter-regional shipping costs were not accounted for. This map can contribute to the understanding of food security issues in rice-producing regions and to estimating potential population values in such regions.

Toshiaki Ichinose - One of the best experts on this subject based on the ideXlab platform.

  • Grouping of Water Supply-and-Demand Structure in the Yellow River Basin of China: Focusing on Balance between Groundwater and Surface-water
    Sustainability, 2019
    Co-Authors: Toshiaki Ichinose, Kai Liu, Akio Onishi, Feng Shi
    Abstract:

    The research purpose of this study was to uncover the grouping of the water supply-and-Demand Structure in the Yellow River Basin (YRB) of China, focusing on the balance between groundwater and surface-water. Comparing the Structure of water usage and the Structure of groundwater usage estimated by previous studies in each region, 35 municipalities were selected and they were classified into 12 catchments in focusing on the geographical location and the similarity of the shape of the Structure of water supply-and-Demand. In the upper reaches, surface-water is mainly used and the share of agricultural usage is small, therefore, seasonal variability of groundwater usage is small. On the other hand, in the middle and the lower reaches, the share of groundwater is large and the share of agricultural usage is large, therefore, seasonal variability of groundwater usage is large. Especially, these characteristics are obvious in the Loess Plateau. In addition, surface-water is mainly used again in the lowermost reaches. The results qualitatively identify the spatial pattern of the classification of water supply-and-Demand Structure and investigate the geographical heterogeneity within each catchment. Performing a GIS (Geographic Information System) -based estimation is meaningful for grasping the geospatial pattern of water supply-and-Demand Structure and for providing an area-by-area report of the situation of the water resource usage. It is hoped that this study serves as an academic reference for optimizing the water resource management and for providing some policy recommendations on resource’s sustainability by using a GIS-based approach.

Guo Xiao-pan - One of the best experts on this subject based on the ideXlab platform.

  • On the Training of Social Worker's Core Quality:Taking "Demand Structure" as the Breakthrough Point
    Journal of Social Work, 2012
    Co-Authors: Guo Xiao-pan
    Abstract:

    It's very complex for the social work education's Demand Structure.The key to balance the needs of the parties is to ensure the education object's core quality.But at present,the professional education level and social worker's quality requirements still don't match.Colleges and universities should seize opportunities for the development,play the guiding role of China Association for Social Work Education,improve the mechanism of regional cooperation,strengthen dominant position and continually improve the core quality of social worker through carrying out the reform of education and teaching.