Pub Date : 2023-06-01DOI: 10.1016/j.resenv.2023.100112
Lishan Xiao , Bo Fu , Tong Lin , Liang Meng , Ouwen Zhang , Lijie Gao
Waste management is an evolutionary system, but few studies have explored how and why public willingness to participate in waste separation changes, or explored possible paths to increase residents’ willingness to participate. This paper took Shanghai as a case study of a city that has experienced recent environmental policy change to embrace an evolutionary feedback perspective. The results showed that after the policy implementation, resident’s satisfaction with waste management increased by only 5.3%, and participation willingness actually decreased by 5.4%. A Geodetector model showed that both separation attitude and knowledge are highly important both before and after policy implementation. Residents’ satisfaction with community waste management showed the largest increase soon after the policy implementation while the importance of time occupied by waste separation dropped significantly. Policy simulation by a system dynamics model showed that the community-driven scenario was able to achieve 95% participation 2 years earlier than baseline scenario. Improving community satisfaction by improving waste management infrastructure can offset the adverse effects of an increased number of waste categories. The study helps to quantify the interaction between institutional change and public participation and find effective measures to maintain public participation in environmentally-friendly behaviors.
{"title":"Promoting and maintaining public participation in waste separation policies — A comparative study in Shanghai, China","authors":"Lishan Xiao , Bo Fu , Tong Lin , Liang Meng , Ouwen Zhang , Lijie Gao","doi":"10.1016/j.resenv.2023.100112","DOIUrl":"10.1016/j.resenv.2023.100112","url":null,"abstract":"<div><p>Waste management is an evolutionary system, but few studies have explored how and why public willingness to participate in waste separation changes, or explored possible paths to increase residents’ willingness to participate. This paper took Shanghai as a case study of a city that has experienced recent environmental policy change to embrace an evolutionary feedback perspective. The results showed that after the policy implementation, resident’s satisfaction with waste management increased by only 5.3%, and participation willingness actually decreased by 5.4%. A Geodetector model showed that both separation attitude and knowledge are highly important both before and after policy implementation. Residents’ satisfaction with community waste management showed the largest increase soon after the policy implementation while the importance of time occupied by waste separation dropped significantly. Policy simulation by a system dynamics model showed that the community-driven scenario was able to achieve 95% participation 2 years earlier than baseline scenario. Improving community satisfaction by improving waste management infrastructure can offset the adverse effects of an increased number of waste categories. The study helps to quantify the interaction between institutional change and public participation and find effective measures to maintain public participation in environmentally-friendly behaviors.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100112"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46463813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.1016/j.resenv.2023.100111
Gina Tüfer, Thomas A. Brunner
To date, there is no evidence on how food user value influences the intention to waste food at home. We experimentally tested the influence of the freshness of tomatoes and them being grown in/on one’s garden/balcony on the intention to waste tomatoes at home (n = 454). We uncovered a significantly lower intention to waste them if they were described as still fresh (versus no longer fresh) and a lower intention to waste them if they were homegrown (versus bought). It did not make a difference whether fresh tomatoes were store-bought or homegrown. However, once the tomatoes were no longer fresh, the purchased tomatoes were much more likely to be thrown away than the homegrown tomatoes.
{"title":"Determining the influence of food user value on the intention to waste tomatoes at home","authors":"Gina Tüfer, Thomas A. Brunner","doi":"10.1016/j.resenv.2023.100111","DOIUrl":"10.1016/j.resenv.2023.100111","url":null,"abstract":"<div><p>To date, there is no evidence on how food user value influences the intention to waste food at home. We experimentally tested the influence of the freshness of tomatoes and them being grown in/on one’s garden/balcony on the intention to waste tomatoes at home (n = 454). We uncovered a significantly lower intention to waste them if they were described as still fresh (versus no longer fresh) and a lower intention to waste them if they were homegrown (versus bought). It did not make a difference whether fresh tomatoes were store-bought or homegrown. However, once the tomatoes were no longer fresh, the purchased tomatoes were much more likely to be thrown away than the homegrown tomatoes.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100111"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42926848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.1016/j.resenv.2023.100113
Christopher E. Ndehedehe
{"title":"Understanding the Earth system in the Anthropocene","authors":"Christopher E. Ndehedehe","doi":"10.1016/j.resenv.2023.100113","DOIUrl":"10.1016/j.resenv.2023.100113","url":null,"abstract":"","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100113"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41345261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.1016/j.resenv.2022.100106
Hancong Zhu , Li Yang
NO2 is one of the main pollutants in the atmospheric environment, which can directly or indirectly cause harm to human health. Jiangsu province is economically developed and densely populated, and the conflict between economic development and ecological environment protection is more prominent, which causes its mean annual NO2 concentration to be higher than other neighboring provinces. The study takes the formation mechanism of NO2 concentration distribution heterogeneity at different spatial scales as the research object. By using OMI satellite remote sensing data and NO2 concentration ground monitoring data in Jiangsu Province from 2015 to 2020, the paper studies NO2 concentration distribution heterogeneity at macroscopic and microscopic scales, respectively, to analyze the formation mechanism. The results show that: (1) The spatial distribution characteristics of NO2 concentration obtained based on the analysis of two data sources have good consistency, with the overall performance of high NO2 concentration in the south of Jiangsu where the concentration of NO2 column reached 16.3 × 1015 molec/cm 2 and the monitoring concentration reached /m3, while the concentration of NO2 in central Jiangsu is relatively low, with average concentrations of 6 × 1015 molec/cm 2 and /m3. (2) Under the macroscopic spatial scale, the average NO2 column concentration in the south of Jiangsu is 9 × 1015 molec/cm 2 higher and the monitoring concentration is /m3 than that in the north of Jiangsu; natural factors such as temperature are the important influencing factors for the heterogeneity of NO2 concentration distribution under this scale. (3) At the microscopic spatial scale, NO2 concentration is 5–10% higher in industrial concentrations in southern Jiangsu, some heating cities in northern Jiangsu, and industrial parks in northern Jiangsu. In addition, NO2 concentration decreases gradually with distance from this area; anthropogenic factors such as population density, GDP, and car ownership are important factors to influence the heterogeneity of NO2 concentration distribution at this scale. Based on the above findings, the paper proposes to adjust the industrial structure, limit the number of high energy-consuming and high-emission enterprises, and develop seasonal emission reduction measures.
{"title":"Formation mechanism of NO2 distribution heterogeneity at different spatial scales","authors":"Hancong Zhu , Li Yang","doi":"10.1016/j.resenv.2022.100106","DOIUrl":"10.1016/j.resenv.2022.100106","url":null,"abstract":"<div><p>NO<sub>2</sub> is one of the main pollutants in the atmospheric environment, which can directly or indirectly cause harm to human health. Jiangsu province is economically developed and densely populated, and the conflict between economic development and ecological environment protection is more prominent, which causes its mean annual NO<sub>2</sub> concentration to be higher than other neighboring provinces. The study takes the formation mechanism of NO<sub>2</sub> concentration distribution heterogeneity at different spatial scales as the research object. By using OMI satellite remote sensing data and NO<sub>2</sub> concentration ground monitoring data in Jiangsu Province from 2015 to 2020, the paper studies NO<sub>2</sub> concentration distribution heterogeneity at macroscopic and microscopic scales, respectively, to analyze the formation mechanism. The results show that: (1) The spatial distribution characteristics of NO<sub>2</sub> concentration obtained based on the analysis of two data sources have good consistency, with the overall performance of high NO<sub>2</sub> concentration in the south of Jiangsu where the concentration of NO<sub>2</sub> column reached 16.3 × 10<sup>15</sup> molec/cm <sup>2</sup> and the monitoring concentration reached <span><math><mrow><mn>46</mn><mo>.</mo><mn>3</mn><mspace></mspace><mi>μ</mi><mi>g</mi></mrow></math></span>/m<sup>3</sup>, while the concentration of NO<sub>2</sub> in central Jiangsu is relatively low, with average concentrations of 6 × 10<sup>15</sup> molec/cm <sup>2</sup> and <span><math><mrow><mn>26</mn><mspace></mspace><mi>μ</mi><mi>g</mi></mrow></math></span>/m<sup>3</sup>. (2) Under the macroscopic spatial scale, the average NO<sub>2</sub> column concentration in the south of Jiangsu is 9 × 10<sup>15</sup> molec/cm <sup>2</sup> higher and the monitoring concentration is <span><math><mrow><mn>15</mn><mspace></mspace><mi>μ</mi><mi>g</mi></mrow></math></span>/m<sup>3</sup> than that in the north of Jiangsu; natural factors such as temperature are the important influencing factors for the heterogeneity of NO<sub>2</sub> concentration distribution under this scale. (3) At the microscopic spatial scale, NO<sub>2</sub> concentration is 5–10% higher in industrial concentrations in southern Jiangsu, some heating cities in northern Jiangsu, and industrial parks in northern Jiangsu. In addition, NO<sub>2</sub> concentration decreases gradually with distance from this area; anthropogenic factors such as population density, GDP, and car ownership are important factors to influence the heterogeneity of NO<sub>2</sub> concentration distribution at this scale. Based on the above findings, the paper proposes to adjust the industrial structure, limit the number of high energy-consuming and high-emission enterprises, and develop seasonal emission reduction measures.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100106"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47751455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-01DOI: 10.1016/j.resenv.2023.100114
Fanghui Zhang , Liyuan Wei , Yuanchao Hu , Hua Yan , Huwei Cui , Chang Chen , Zhen Wang
China’s population–income structure has undergone significant changes. However, the impact of population expansion and changes in consumption patterns of specific income groups on regional water withdrawal has not been quantitatively assessed. Here we incorporate multiregional input–output (MRIO) tables with national survey data to capture the water footprint (WF) in the consumption of each income group in China by considering each group’s consumption patterns and population changes. The results show that the middle and rich classes contributed 83% (2012) and 89% (2015) of embodied water withdrawal, respectively. Among the driving factors leading to changes in water withdrawal, changes in consumption patterns and the population–income structure led to increases of approximately 15.4 billion and 12.4 billion , respectively. Households on the East Coast (EC), and South Coast (SC), as well as in Central China (CC), and Southwest (SW) were the key contributors to the increase. Our findings highlight essential water conservation policies to consider to meet the needs of transforming society.
{"title":"The expansion of the middle and rich classes heterogeneously intensifies regional water withdrawal in China","authors":"Fanghui Zhang , Liyuan Wei , Yuanchao Hu , Hua Yan , Huwei Cui , Chang Chen , Zhen Wang","doi":"10.1016/j.resenv.2023.100114","DOIUrl":"10.1016/j.resenv.2023.100114","url":null,"abstract":"<div><p>China’s population–income structure has undergone significant changes. However, the impact of population expansion and changes in consumption patterns of specific income groups on regional water withdrawal has not been quantitatively assessed. Here we incorporate multiregional input–output (MRIO) tables with national survey data to capture the water footprint (WF) in the consumption of each income group in China by considering each group’s consumption patterns and population changes. The results show that the middle and rich classes contributed 83% (2012) and 89% (2015) of embodied water withdrawal, respectively. Among the driving factors leading to changes in water withdrawal, changes in consumption patterns and the population–income structure led to increases of approximately 15.4 billion <span><math><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> and 12.4 billion <span><math><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> , respectively. Households on the East Coast (EC), and South Coast (SC), as well as in Central China (CC), and Southwest (SW) were the key contributors to the increase. Our findings highlight essential water conservation policies to consider to meet the needs of transforming society.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100114"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41366003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Europe has increased its production, processing, and export of vegetables in recent decades due to changing dietary patterns supporting a greater consumption of vegetables high in nutrition. The growing interest in environmental issues has led to advocacy for sustainable vegetable production and consumption. Thus, this study assessed the ecological impacts of producing 1 kg of frozen spinach (functional unit) by a food processor in central Italy (cradle-to-factory gate approach). We evaluated the global warming potential (GWP) for distributing the final to different destinations. We also compare the potential environmental credits for different spinach residue management strategies, residue reduction through improved process efficiency, and as a feedstock for biogas production (avoided maize silage) based on the total volatile solids content. The life cycle assessment was used following the CML_IA impact assessment method based mainly on primary data related to 2019/2020. The GWP was 1.55 kg CO2eq. with respect to the functional unit. Excluding the dominant cultivation phase, packaging, particularly corrugated board boxes, electricity, and wastewater treatment were significant contributors across the midpoint impact categories assessed. The GWP for distributing the packaged frozen to Australia was 24 times more impactful than regional inland distribution. When spinach residue is reduced to 20% and 10%, total impacts for all impact categories also decrease by 12% and 22%, respectively. The benefit of using the current amount of spinach residue to produce biomethane was less than 7% across all impact categories except terrestrial ecotoxicity (13%). Therefore, reducing spinach waste along the processing line and efficient end-of-packaging life management through recycling and reuse by the manufacturer can considerably reduce the environmental impacts of frozen spinach.
近几十年来,欧洲增加了蔬菜的生产、加工和出口,因为饮食模式的改变支持了高营养蔬菜的更多消费。对环境问题日益增长的兴趣导致倡导可持续蔬菜生产和消费。因此,本研究评估了意大利中部一家食品加工商生产1公斤冷冻菠菜(功能单位)的生态影响(从摇篮到工厂大门的方法)。我们评估了全球变暖潜势(GWP)的最终分配到不同的目的地。我们还比较了不同菠菜残渣管理策略的潜在环境信用,通过提高工艺效率减少残渣,并根据总挥发性固体含量作为沼气生产的原料(避免玉米青贮)。生命周期评价采用CML_IA影响评价方法,主要基于2019/2020年相关的原始数据。GWP为1.55 kg co2当量。关于功能单位。排除主要的种植阶段,包装,特别是瓦楞纸箱,电力和废水处理是评估中点影响类别的重要贡献者。将包装好的冷冻食品配送到澳大利亚的全球变暖潜能值是内陆地区配送的24倍。当菠菜残渣减少到20%和10%时,所有影响类别的总影响也分别减少了12%和22%。除陆地生态毒性(13%)外,在所有影响类别中,利用目前数量的菠菜渣生产生物甲烷的效益低于7%。因此,通过制造商的回收和再利用,减少加工过程中的菠菜浪费和有效的包装终寿命管理,可以大大减少冷冻菠菜对环境的影响。
{"title":"Environmental impact assessment of producing frozen spinach in central Italy","authors":"Ester Foppa Pedretti, Daniele Duca, Martina Ballarini, Kofi Armah Boakye-Yiadom, Alessio Ilari","doi":"10.1016/j.resenv.2023.100110","DOIUrl":"10.1016/j.resenv.2023.100110","url":null,"abstract":"<div><p>Europe has increased its production, processing, and export of vegetables in recent decades due to changing dietary patterns supporting a greater consumption of vegetables high in nutrition. The growing interest in environmental issues has led to advocacy for sustainable vegetable production and consumption. Thus, this study assessed the ecological impacts of producing 1 kg of frozen spinach (functional unit) by a food processor in central Italy (cradle-to-factory gate approach). We evaluated the global warming potential (GWP) for distributing the final to different destinations. We also compare the potential environmental credits for different spinach residue management strategies, residue reduction through improved process efficiency, and as a feedstock for biogas production (avoided maize silage) based on the total volatile solids content. The life cycle assessment was used following the CML_IA impact assessment method based mainly on primary data related to 2019/2020. The GWP was 1.55 kg CO<sub>2</sub>eq. with respect to the functional unit. Excluding the dominant cultivation phase, packaging, particularly corrugated board boxes, electricity, and wastewater treatment were significant contributors across the midpoint impact categories assessed. The GWP for distributing the packaged frozen to Australia was 24 times more impactful than regional inland distribution. When spinach residue is reduced to 20% and 10%, total impacts for all impact categories also decrease by 12% and 22%, respectively. The benefit of using the current amount of spinach residue to produce biomethane was less than 7% across all impact categories except terrestrial ecotoxicity (13%). Therefore, reducing spinach waste along the processing line and efficient end-of-packaging life management through recycling and reuse by the manufacturer can considerably reduce the environmental impacts of frozen spinach.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"12 ","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47346005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-29DOI: 10.1016/j.resenv.2023.100126
D. O’Brien , M. Markiewicz-Keszycka , J. Herron
Diversification is widely considered to positively influence the environmental sustainability of livestock farming. Multiple options exist to diversify cattle farms, but few have been examined at a systems level for grass-based livestock farms. Three nature-based diversification options recommended for livestock farms were examined in this study: mixed grass–white clover swards (GWC), organic farming (OFS) and agroforestry (AGF). They were applied on dairy and suckler calf-to-beef farming systems common in the Republic of Ireland. Both of these bovine systems were evaluated over a 3-year period (2017–2019) and were nationally representative. The environmental impact and resource use of dairy and suckler calf-to-beef systems were modelled using life cycle assessment (LCA). The system boundary of the LCA model extended from the extraction of raw materials to the sale of milk and cattle from the farm, i.e. cradle to farm-gate. Six of the major environmental impacts of cattle farming were simulated; global warming potential (GWP), non-renewable energy (NRE) depletion, land occupation (LO), acidification potential (ACP), freshwater and marine eutrophication potential (FEP and MEP). Impacts were scaled to the following functional units: land area, fat and protein corrected milk (FPCM) for dairy and carcass weight (CW) for beef. The result illustrated that GWC swards reduced the GWP of milk production by 9% and cut the GWP of beef LW by 3%. Per unit of product, this strategy decreased ACP by 4%–5%, NRE depletion by 13%–19% and LO by 6%–7%. However, it increased MEP by 5%–12% due to clover fixing more N than it replaced. Cattle farms based on GWC were more productive than conventional farms, but tended to increase impacts per hectare. Organic farming had the lowest environmental impacts per unit of land and reduced GWP and NRE depletion. Without carbon sequestration, organic farming had the opposite effect on GWP of FPCM and increased ACP and MEP per product unit. Declines in productivity in organic systems led to the rise in these impacts per unit of product and increases in LO relative to conventional systems. Partial conversion (10%–20%) of grassland to silvopasture decreased milk and beef output, and slightly improved environmental performance. Carbon sequestration was greater in silvopasture than in grassland, albeit LCA models struggle to accurately quantify the influence of management change on this process. This issue can be overcome through more field and modelling research on sequestration. Further research is also required on combining diversification options to optimise the environmental sustainability of cattle farming.
{"title":"Environmental impact of grass-based cattle farms: A life cycle assessment of nature-based diversification scenarios","authors":"D. O’Brien , M. Markiewicz-Keszycka , J. Herron","doi":"10.1016/j.resenv.2023.100126","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100126","url":null,"abstract":"<div><p>Diversification is widely considered to positively influence the environmental sustainability of livestock farming. Multiple options exist to diversify cattle farms, but few have been examined at a systems level for grass-based livestock farms. Three nature-based diversification options recommended for livestock farms were examined in this study: mixed grass–white clover swards (GWC), organic farming (OFS) and agroforestry (AGF). They were applied on dairy and suckler calf-to-beef farming systems common in the Republic of Ireland. Both of these bovine systems were evaluated over a 3-year period (2017–2019) and were nationally representative. The environmental impact and resource use of dairy and suckler calf-to-beef systems were modelled using life cycle assessment (LCA). The system boundary of the LCA model extended from the extraction of raw materials to the sale of milk and cattle from the farm, i.e. cradle to farm-gate. Six of the major environmental impacts of cattle farming were simulated; global warming potential (GWP), non-renewable energy (NRE) depletion, land occupation (LO), acidification potential (ACP), freshwater and marine eutrophication potential (FEP and MEP). Impacts were scaled to the following functional units: land area, fat and protein corrected milk (FPCM) for dairy and carcass weight (CW) for beef. The result illustrated that GWC swards reduced the GWP of milk production by 9% and cut the GWP of beef LW by 3%. Per unit of product, this strategy decreased ACP by 4%–5%, NRE depletion by 13%–19% and LO by 6%–7%. However, it increased MEP by 5%–12% due to clover fixing more N than it replaced. Cattle farms based on GWC were more productive than conventional farms, but tended to increase impacts per hectare. Organic farming had the lowest environmental impacts per unit of land and reduced GWP and NRE depletion. Without carbon sequestration, organic farming had the opposite effect on GWP of FPCM and increased ACP and MEP per product unit. Declines in productivity in organic systems led to the rise in these impacts per unit of product and increases in LO relative to conventional systems. Partial conversion (10%–20%) of grassland to silvopasture decreased milk and beef output, and slightly improved environmental performance. Carbon sequestration was greater in silvopasture than in grassland, albeit LCA models struggle to accurately quantify the influence of management change on this process. This issue can be overcome through more field and modelling research on sequestration. Further research is also required on combining diversification options to optimise the environmental sustainability of cattle farming.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"14 ","pages":"Article 100126"},"PeriodicalIF":0.0,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49837316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-01DOI: 10.1016/j.resenv.2023.100126
D. O'Brien, M. Markiewicz-Kęszycka, J. Herron
{"title":"Environmental impact of grass-based cattle farm: A life cycle assessment of nature-based diversification scenarios","authors":"D. O'Brien, M. Markiewicz-Kęszycka, J. Herron","doi":"10.1016/j.resenv.2023.100126","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100126","url":null,"abstract":"","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45278622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-01DOI: 10.1016/j.resenv.2023.100125
Pei-Yuan Chen, X. Hong, Wei-Hsuan Lo
{"title":"Evaluating the stormwater reduction of a green roof under different rainfall events and antecedent water contents with a modified hydrological model","authors":"Pei-Yuan Chen, X. Hong, Wei-Hsuan Lo","doi":"10.1016/j.resenv.2023.100125","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100125","url":null,"abstract":"","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48948122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-01DOI: 10.1016/j.resenv.2022.100093
Shabarish S. , Tamilarasan K. , Rajesh Banu J. , Godvin Sharmila V.
An energy-efficient disintegration approach used to produce biohydrogen from marine macroalgae biomass (Chaetomorpha antennina) was demonstrated in this study. The suggested research aimed to explain the function of macroalgae disintegration by sonication (DS) and disintegration by a sonic surfactant (DSS) in biohydrogen production. Biosurfactant dosage (3 L/g TS), sonic intensity (50%) and disintegration duration (30 min) were found to be an optimum conditions for DSS with respect to dissoluted organics release (DOR). Volatile fatty acids (VFA) generation was higher in DSS (1845 mg/L) than DS (864 mg/L) When DS and DSS were compared, DSS had a substantially higher disintegration efficiency (DE) and biohydrogen yield (26%, 147 mL /gCOD) than DS (21.5%, 121 mL /gCOD). Net energy (NE) obtained in DSS (0.044 kWh/kg of biomass) was more than the DS (−0.02 kWh/kg of biomass). DSS had a higher energy ratio of 1.8, while DS had a lower energy ratio of 0.7. Overall, DSS was found to be an energetic way to produce biohydrogen.
本研究展示了一种利用大型海藻生物质(Chaetomorpha antennina)高效分解生产生物氢的方法。本研究旨在解释大型藻类的超声分解(DS)和超声表面活性剂(DSS)在生物制氢中的作用。生物表面活性剂用量(3 μL/g TS)、声波强度(50%)和崩解时间(30 min)是DSS溶出有机物(DOR)的最佳条件。DSS的挥发性脂肪酸(VFA)生成量(1845 mg/L)高于DS (864 mg/L)。比较DSS和DSS的降解效率(26%,147 mL H2/gCOD)和生物氢产率(21.5%,121 mL H2/gCOD), DSS的降解效率(26%,147 mL H2/gCOD)显著高于DS (21.5%, 121 mL H2/gCOD)。DSS获得的净能量(0.044 kWh/kg生物质)大于DS (- 0.02 kWh/kg生物质)。DSS的能量比较高,为1.8,而DS的能量比较低,为0.7。总的来说,DSS被认为是一种高效的生产生物氢的方法。
{"title":"Biohydrogen production from macroalgae via sonic biosurfactant disintegration: An energy efficient approach","authors":"Shabarish S. , Tamilarasan K. , Rajesh Banu J. , Godvin Sharmila V.","doi":"10.1016/j.resenv.2022.100093","DOIUrl":"10.1016/j.resenv.2022.100093","url":null,"abstract":"<div><p>An energy-efficient disintegration approach used to produce biohydrogen from marine macroalgae biomass (<em>Chaetomorpha antennina</em>) was demonstrated in this study. The suggested research aimed to explain the function of macroalgae disintegration by sonication (DS) and disintegration by a sonic surfactant (DSS) in biohydrogen production. Biosurfactant dosage (3 <span><math><mi>μ</mi></math></span>L/g TS), sonic intensity (50%) and disintegration duration (30 min) were found to be an optimum conditions for DSS with respect to dissoluted organics release (DOR). Volatile fatty acids (VFA) generation was higher in DSS (1845 mg/L) than DS (864 mg/L) When DS and DSS were compared, DSS had a substantially higher disintegration efficiency (DE) and biohydrogen yield (26%, 147 mL <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>/gCOD) than DS (21.5%, 121 mL <span><math><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>/gCOD). Net energy (NE) obtained in DSS (0.044 kWh/kg of biomass) was more than the DS (−0.02 kWh/kg of biomass). DSS had a higher energy ratio of 1.8, while DS had a lower energy ratio of 0.7. Overall, DSS was found to be an energetic way to produce biohydrogen.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"11 ","pages":"Article 100093"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45854828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}