Kazuyo Matsubae
Biographic Data
| ID | 4457823 |
|---|---|
| NAME | Kazuyo Matsubae |
| GIVEN NAMES | Kazuyo |
| FAMILY NAME | Matsubae |
| SIGNATURE | MATSUBAE K |
| AFFILIATIONS | Tohoku University |
| ORCID | 0000-0002-3816-3898 |
| VERIFIED | Yes |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 11 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Dynamic resilience and synergistic strategies for the cobalt supply chain
Environmental trade-offs from renewable energy adoption in chile’s copper production
As the world’s leading copper producer, Chile faces the dual challenge of satisfying rising demand for copper in clean energy technologies while mitigating the environmental impacts of extraction and processing. To address the sector’s substantial energy and water requirements, national strategies have emphasized renewable energy deployment and the use of desalinated seawater as measures to reduce greenhouse gas emissions and alleviate water scar…
Social and environmental aspects of resource extraction of energy-transition minerals
The global energy transition is accelerating demand for critical minerals such as lithium, nickel, and copper. Although essential for low-carbon technologies, the extractions of these mineral resources create significant socio-environmental costs. The 11 Letters curated in this Focus Issue of Environmental Research Letters bring interdisciplinary perspectives to highlight the social and environmental complexities of energy-transition mineral extr…
Dynamics of land transformation and carbon stock loss from nickel laterite open-pit mining in Indonesia
Global demands for nickel—a key energy transition metal—have notably risen in recent years, positioning Indonesia as the world’s major supplier. Nickel in Indonesia occurs in laterite ore deposits, and is extracted with open-pit mining, a process which induces land transformation of high carbon stock biomass sources such as forests. This study investigates the spatial and temporal impacts of nickel mining on land cover and biomass carbon stock by…
Nutrient-extended input–output (NutrIO) method for the food nitrogen footprint
Agro-food systems require nutrient input from several sources to provide food products and food-related services. Many of the nutrients are lost to the environment during supply chains, potentially threatening human and ecosystem health. Countries therefore need to reduce their nutrient/nitrogen footprints. These footprints are importantly affected by links between sectors. However, existing assessments omit the links between sectors, especially …
Mining, land restoration and sustainable development in isolated islands
Nitrogen footprints
Nitrogen (N) management presents a sustainability dilemma: N is strongly linked to energy and food production, but excess reactive N causes environmental pollution. The N footprint is an indicator that quantifies reactive N losses to the environment from consumption and production of food and the use of energy. The average per capita N footprint (calculated using the N-Calculator methodology) of ten countries varies from 15 to 47 kg N capita−1 ye…
Forecasting Replacement Demand of Durable Goods and the Induced Secondary Material Flows
The aim of this article is to propose a method for forecasting future secondary material flows by combining a product lifetime distribution analysis with a waste input‐output analysis and present a simple case study of automobiles. The case study demonstrates that the proposed method enables us to estimate replacement demand of new vehicles, number of end‐of‐life (EOL) vehicles arising from the aging of vehicles, volume of shredder scraps recover…
Unintentional Flow of Alloying Elements in Steel during Recycling of End‐of‐Life Vehicles
Alloying elements in steel add a wide range of valuable properties to steel materials that are indispensable for the global economy. However, they are likely to be effectively irretrievably blended into the steel when recycled because of (among other issues) the lack of information about the composition of the scrap. This results in the alloying elements dissipating in slag during steelmaking and/or becoming contaminants in secondary steel. We us…
Using Total Material Requirement to Evaluate the Potential for Recyclability of Phosphorous in Steelmaking Dephosphorization Slag
Urban ores can be classified into two types—those made up of items that were in the possession of consumers, such as end‐of‐life home appliances, and those that were not, such as manufacturing wastes. The dephosphorization slag generated at some steelmaking plants is an example of a manufacturing waste. In this study, the potential for this slag to become a new phosphorous resource is evaluated in terms of total material requirement (TMR). To do …
A Material Flow Analysis of Phosphorus in Japan
The demand for biofuels has recently increased because of rising prices of fossil fuels and diversification of energy resources. As a result, the demand for sugarcane and corn has been increasing, not only for food production, but also as sources of energy. In this context, securing supplies of phosphorus, required as an essential nutrient in agricultural production, has considerable implications that extend beyond food and agricultural policy. I…
Nitrogen footprints
Nitrogen (N) management presents a sustainability dilemma: N is strongly linked to energy and food production, but excess reactive N causes environmental pollution. The N footprint is an indicator that quantifies reactive N losses to the environment from consumption and production of food and the use of energy. The average per capita N footprint (calculated using the N-Calculator methodology) of ten countries varies from 15 to 47 kg N capita−1 ye…
A Material Flow Analysis of Phosphorus in Japan
The demand for biofuels has recently increased because of rising prices of fossil fuels and diversification of energy resources. As a result, the demand for sugarcane and corn has been increasing, not only for food production, but also as sources of energy. In this context, securing supplies of phosphorus, required as an essential nutrient in agricultural production, has considerable implications that extend beyond food and agricultural policy. I…
Using Total Material Requirement to Evaluate the Potential for Recyclability of Phosphorous in Steelmaking Dephosphorization Slag
Urban ores can be classified into two types—those made up of items that were in the possession of consumers, such as end‐of‐life home appliances, and those that were not, such as manufacturing wastes. The dephosphorization slag generated at some steelmaking plants is an example of a manufacturing waste. In this study, the potential for this slag to become a new phosphorous resource is evaluated in terms of total material requirement (TMR). To do …
Unintentional Flow of Alloying Elements in Steel during Recycling of End‐of‐Life Vehicles
Alloying elements in steel add a wide range of valuable properties to steel materials that are indispensable for the global economy. However, they are likely to be effectively irretrievably blended into the steel when recycled because of (among other issues) the lack of information about the composition of the scrap. This results in the alloying elements dissipating in slag during steelmaking and/or becoming contaminants in secondary steel. We us…
Forecasting Replacement Demand of Durable Goods and the Induced Secondary Material Flows
The aim of this article is to propose a method for forecasting future secondary material flows by combining a product lifetime distribution analysis with a waste input‐output analysis and present a simple case study of automobiles. The case study demonstrates that the proposed method enables us to estimate replacement demand of new vehicles, number of end‐of‐life (EOL) vehicles arising from the aging of vehicles, volume of shredder scraps recover…
Nitrogen footprints
Nitrogen (N) management presents a sustainability dilemma: N is strongly linked to energy and food production, but excess reactive N causes environmental pollution. The N footprint is an indicator that quantifies reactive N losses to the environment from consumption and production of food and the use of energy. The average per capita N footprint (calculated using the N-Calculator methodology) of ten countries varies from 15 to 47 kg N capita−1 ye…
Mining, land restoration and sustainable development in isolated islands
Nutrient-extended input–output (NutrIO) method for the food nitrogen footprint
Agro-food systems require nutrient input from several sources to provide food products and food-related services. Many of the nutrients are lost to the environment during supply chains, potentially threatening human and ecosystem health. Countries therefore need to reduce their nutrient/nitrogen footprints. These footprints are importantly affected by links between sectors. However, existing assessments omit the links between sectors, especially …
Dynamics of land transformation and carbon stock loss from nickel laterite open-pit mining in Indonesia
Global demands for nickel—a key energy transition metal—have notably risen in recent years, positioning Indonesia as the world’s major supplier. Nickel in Indonesia occurs in laterite ore deposits, and is extracted with open-pit mining, a process which induces land transformation of high carbon stock biomass sources such as forests. This study investigates the spatial and temporal impacts of nickel mining on land cover and biomass carbon stock by…
Dynamic resilience and synergistic strategies for the cobalt supply chain
Environmental trade-offs from renewable energy adoption in chile’s copper production
As the world’s leading copper producer, Chile faces the dual challenge of satisfying rising demand for copper in clean energy technologies while mitigating the environmental impacts of extraction and processing. To address the sector’s substantial energy and water requirements, national strategies have emphasized renewable energy deployment and the use of desalinated seawater as measures to reduce greenhouse gas emissions and alleviate water scar…
Social and environmental aspects of resource extraction of energy-transition minerals
The global energy transition is accelerating demand for critical minerals such as lithium, nickel, and copper. Although essential for low-carbon technologies, the extractions of these mineral resources create significant socio-environmental costs. The 11 Letters curated in this Focus Issue of Environmental Research Letters bring interdisciplinary perspectives to highlight the social and environmental complexities of energy-transition mineral extr…
Extraction and Separation Processes (6 works) · Engineering (5 works) · Environmental Science (5 works) · Business (4 works) · Chemistry (4 works) · Economics (4 works) · Recycling and Waste Management Techniques (4 works) · Waste management (4 works) · Ecology (3 works) · Material flow analysis (3 works)