Resources Environment and Sustainability最新文献

{"title":"Valorizing date seeds in biscuits: A novel approach to incorporate bioactive components extracted from date seeds using microwave-assisted extraction","authors":"Meththa Ranasinghe ,&nbsp;Nilushni Sivapragasam ,&nbsp;Hussein Mostafa ,&nbsp;Jennifer Osamede Airouyuwa ,&nbsp;Ioannis Manikas ,&nbsp;Balan Sundarakani ,&nbsp;Sajid Maqsood Ph.D. ,&nbsp;Constantinos Stathopoulos","doi":"10.1016/j.resenv.2023.100147","DOIUrl":"10.1016/j.resenv.2023.100147","url":null,"abstract":"<div><p>Date seeds contain various nutrients and bioactive compounds which can be utilized as functional food ingredients in a sustainable manner. This study optimized microwave-assisted extraction (MAE) of bioactive compounds from defatted date seed powder (DSP) and investigated the physicochemical properties of the remaining residues from seeds of three different date varieties (Khalas, Fardh, and Khenaizi). Both, the extracts and the residues were incorporated as functional ingredients in the biscuits. Under optimal conditions: power 700 W, time 6 min, temperature 45 °C, and particle size <span><math><mrow><mo>&lt;</mo><mn>125</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>, the total phenolic content (TPC) and total flavonoid content (TFC) were 15.88 mg GAE/g DSP and 8.51 mg QE/g DSP, respectively, while the antioxidant activities were 17.93, 61.68 and 39.74 mmol TE/g DSP for 2,2<span><math><msup><mrow></mrow><mrow><msup><mrow></mrow><mrow><mo>′</mo></mrow></msup></mrow></msup></math></span> -azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 1,1-diphenyl-2-picrlthydrazyl (DPPH) and ferric ion reducing antioxidant power (FRAP), respectively. Bioactive properties were significantly different (P&lt;0.05) among three DSP varieties. The main phenolic compounds identified in defatted DSP were benzoic acid, catechin, ferulic acid, caffeic acid, and vanillin. Moisture content, water holding capacity (WHC), and color of the defatted DSP were significantly affected by microwaves. DSP extract and residue fortified biscuits showed enhanced TPC, TFC, and antioxidant properties. This study indicates that date seeds can be successfully used in food products to promote more sustainable food production.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100147"},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000403/pdfft?md5=c5da876e545b64f2160045445ff66779&pid=1-s2.0-S2666916123000403-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139456567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatio-temporal analysis of ecological service value driven by land use changes: A case study with Danjiangkou, Hubei section","authors":"Xi Wang ,&nbsp;Binbin Lu ,&nbsp;Jiansong Li ,&nbsp;Quanyi Liu ,&nbsp;Lihua He ,&nbsp;Shichong Lv ,&nbsp;Shaohuai Yu","doi":"10.1016/j.resenv.2023.100146","DOIUrl":"10.1016/j.resenv.2023.100146","url":null,"abstract":"<div><p>The escalating impacts of human activities on the ecological environment underscore the significance of valuing ecological resources within the paradigm of sustainable development. In this context, the ecological service value (ESV) of the Danjiangkou watershed (Hubei section) was assessed using a revised equivalent factor evaluation method. Additionally, the study determined the human activity intensity (HAI) and employed GeoDetector to delineate the spatial heterogeneity of ESV, thereby investigating the underlying causes. Results show that vegetation coverage attains a high level of 94%, with a minor 1.37% land use change between 2016 and 2020. Secondly, ESV exhibited a substantial variation, rising from 75.55 billion to 79.81 billion yuan, a growth rate of 5.64%. Lastly, the explanatory degree for the synergistic interplay of HAI and expenditure on the spatial variation of ESV surpassed 30%, and the average sensitivity coefficient of up to 0.82 further indicated the apparent impacts of land use and human interference activities on ESV. The study makes an excellent effort to clarify the complex coupling relationships between different land use types and ESV, which could serve as an example and model for other studies in the field.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000397/pdfft?md5=3397eee307ca5588d5ed2372a1f05c38&pid=1-s2.0-S2666916123000397-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139395059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"When pesticide reduction objectives meet business as usual: Possible impacts on the crop sector in Latvia","authors":"Aleksejs Nipers ,&nbsp;Irina Pilvere ,&nbsp;Ilze Upite ,&nbsp;Agnese Krievina ,&nbsp;Aija Pilvere","doi":"10.1016/j.resenv.2023.100145","DOIUrl":"10.1016/j.resenv.2023.100145","url":null,"abstract":"<div><p>The European Union (EU) has set forth ambitious political objectives aimed at mitigating the adverse impacts of agriculture on climate, environment, and human health. Among the measures which are expected to help reach the goals, an important objective is significant reduction of pesticide usage, as outlined in the EU’s ”From Farm to Fork” strategy. This study seeks to assess the potential financial implications of the reduction of pesticide use, focusing on the major crops cultivated in Latvia. Scenario simulations have been conducted to examine the consequences of pesticide usage intensity on profitability, yields, and consumption of fertilisers. The evaluation encompasses winter and spring wheat, along with winter rapeseed, which account for 80% of the total pesticide usage in Latvia. It is assumed that farmers continue to produce the same crops, using their current level of knowledge and adjusting production technology to the reduced pesticides application rates. The analysis leads to the conclusion that in order to attain a reduction in pesticide use by 61% from the 2021 level (or 53% from the 2015–2017 level), the application rate of pesticides needs to be limited to 0.78 kg ha ⁻¹ of active substance for conventionally produced winter and spring wheat as well as winter rapeseed, and in addition to that the area used for these crops should be reduced by 33% (replaced with organic production). However, if the market prices of crops, the amount of public support and production costs do not change, the financial implications for the agricultural sector could be severe — yearly farm profit in the analysed sector could decrease by 41% or by EUR 130 mln.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100145"},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000385/pdfft?md5=0c659bb259ed4f34b944493fd503e121&pid=1-s2.0-S2666916123000385-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139391881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recycling of enamelled copper wire from end-of-life electric motor via room temperature methanolysis","authors":"Samuel D. Widijatmoko ,&nbsp;Zhehao (John) Cui ,&nbsp;Hassan Agalit ,&nbsp;Yongliang Li ,&nbsp;Gary A. Leeke","doi":"10.1016/j.resenv.2023.100143","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100143","url":null,"abstract":"<div><p>Polyester enamelled copper wire plays an important role in the manufacturing of electric motors. In line with the electrification of transport, the demand for electric motors and the future waste generated from their end-of-life cannot be ignored. The waste from the polyester enamelled copper wire is expected to increase steadily. Methods proposed by researchers are mainly focused on thermal treatment to either pyrolyse or burn off the polyester enamel. However, thermal treatments fail to consider the potential risk of air pollution and to recover the polyester enamel.</p><p>In this manuscript, we propose two-stage processes comprised of methanol washing and room temperature methanolysis with dichloromethane as co-solvent and <span><math><msub><mrow><mi>K</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>CO₃ as catalyst to delaminate multilayered type enamelled copper wire. The methanol washing recovers polyvinyl butyral as it is, via dissolution. Whereas the methanolysis products are dimethyl terephthalate (DMT) and dimethyl isophthalate (DMI) which are precursors to the polyester and could be used to make new polyester. At room temperature, the parameters of solid to liquid, DCM to methanol, and <span><math><msub><mrow><mi>K</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>CO₃ to Cu<span><math><msub><mrow></mrow><mrow><mi>wire</mi></mrow></msub></math></span> ratio, of 500 g/L, 1.00 mol/mol, and 0.10 wt%, respectively, allow complete removal of polyester enamel in 24 h. The methanolysis parameters described manage to give a modest DMT and DMI yield of 86.0% and 92.2%, respectively. The reaction time can be sped up by increasing the temperature by 10 °C, leading to complete depolymerisation in 4 h. Compared to thermal treatment, the proposed method requires 80.7% lower energy with the products contained within the solution.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100143"},"PeriodicalIF":0.0,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000361/pdfft?md5=218a142cf42689698b33363138c9672f&pid=1-s2.0-S2666916123000361-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A segmentation approach to understanding water consumption behavioral patterns among households in Saudi Arabia for a sustainable future","authors":"Abdulaziz I. Almulhim ,&nbsp;Ismaila Rimi Abubakar","doi":"10.1016/j.resenv.2023.100144","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100144","url":null,"abstract":"<div><p>Urban water consumption has significant implications for both human welfare and the environment, especially in arid regions. In Saudi Arabia, where 60% of the urban water supply relies on energy-intensive desalination processes, the average per capita water consumption rate of 300 L/day is one of the highest worldwide. This study investigates potential behavioral patterns in residential water consumption among households in Saudi Arabia. A segmentation approach is employed to classify residents into clusters and evaluate their potential water consumption behavioral patterns. Data from 618 households were collected via a structured questionnaire and analyzed using descriptive statistics, principal component analysis (PCA), and cluster analysis (CA). Participants were categorized into six segments based on the relationship between their behaviors and water consumption derived from the factor analysis. The outcomes of PCA and CA analyses indicate a relationship between respondents’ socio-demographic factors and their potential behavioral patterns in residential water consumption. The findings highlight that education, household size, income, housing type, age, and nationality, in increasing order of significance, are the key factors influencing household water consumption and conservation tendencies. The paper concludes that comprehending residential water consumption patterns is crucial for effective interventions, social marketing strategies, and communication campaigns for behavioral changes. The study can inform water conservation policies and programs that promote sustainable water consumption practices, benefiting agencies, policymakers, and scholars in the water sector.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000373/pdfft?md5=08976245011ff1947f5946d5e0bc470a&pid=1-s2.0-S2666916123000373-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139033356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable waste utilization: Geopolymeric fly ash waste as an effective phenol adsorbent for environmental remediation","authors":"Dima Anwar Hijazi,&nbsp;Amina BiBi,&nbsp;Mohammad A. Al-Ghouti","doi":"10.1016/j.resenv.2023.100142","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100142","url":null,"abstract":"<div><p>Rapid industrialization and urbanization generate significant waste, including fly ash, posing environmental challenges. Utilizing these materials is essential to mitigate impacts and promote sustainable development. This research paper focuses on the innovative application of geopolymeric fly ash (GEOFA) waste modified with titanium oxide (TiO₂) (GEOFA-TiO₂) as a promising adsorbent for the removal of phenol compounds from contaminated water. Analysis showed that the modification process resulted in the formation of functional groups such as -OH, which aided in the adsorption process. Adsorption studies were conducted to evaluate the influence of pH, temperature, and concentration on phenol removal. The maximum percentage removal of phenol was achieved at optimum conditions of pH 6 and a temperature of 25 °C, with an adsorption capacity of 166.7 mg/g. The adsorption process followed the Langmuir model, suggesting a monolayer adsorption mechanism and the thermodynamic studies revealed that the phenol adsorption onto GEOFA-TiO₂ was an endothermic process with a promising affinity between phenol and the adsorbent. This study demonstrates the effective use of modified fly ash-based adsorbents to remove phenolic contaminants. By repurposing waste materials, this research addresses waste management challenges and promotes sustainable practices, reveling their potential for environmental remediation.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100142"},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266691612300035X/pdfft?md5=6daa2ebd1bdb2b45b94ebeef81a44752&pid=1-s2.0-S266691612300035X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138582281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Streamlining extracellular polymeric substance removal: Fuzzy multi-objective optimization of ultrasonic-Fenton treatment","authors":"Angelo Earvin Sy Choi,&nbsp;Danielle Grace Evangelista,&nbsp;Joseph R. Ortenero","doi":"10.1016/j.resenv.2023.100141","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100141","url":null,"abstract":"<div><p>Managing high water content sludge in wastewater treatment is crucial for sustainability. This involves a complex challenge of maximizing the removal of loosely bound extracellular polymeric substances (LB-EPS) while minimizing ultrasonic-Fenton process costs. This study introduces a novel approach to address these conflicting objectives by adopting fuzzy multi-objective optimization. This method reconciles the conflicting objectives by identifying the optimal conditions for ferrous ion (Fe<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span>) dosage, hydrogen peroxide (H₂O₂) dosage, and ultrasonication time. The optimization model incorporates empirical equations that define the effects of Fenton’s reagent and ultrasonication on LB-EPS removal, as well as considerations for material and electricity usage costs and the cumulative uncertainties associated with experimental runs. To effectively capture the trade-offs between EPS removal and process costs, the <span><math><mi>ɛ</mi></math></span> -constraint method was utilized to delineate the Pareto front. This approach significantly enhances LB-EPS removal from anaerobically digested sludge and establishes boundary limits within the Pareto front for practical application within the context of fuzzy optimization. The optimized solution derived from this innovative approach resulted in the conditions of 10 mM Fe<span><math><msup><mrow></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> dosage, 100 mM H₂O₂ dosage, and 10 min of ultrasonication. This configuration achieves an impressive 60.7% <span><math><mo>±</mo></math></span> 3.7% LB-EPS removal while maintaining a cost of 26.6 USD/L and ensuring 100% overall satisfaction. This research represents a significant advancement in sludge dewatering strategies. It underscores the pivotal role of innovative decision-making approaches in advancing the field of sludge dewatering methodologies for more sustainable wastewater treatment practices.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000348/pdfft?md5=36b68b6a2e5322e1966009e74aec8e23&pid=1-s2.0-S2666916123000348-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138436165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of pumping and injection regimes for mitigation of seawater intrusion","authors":"Assaad Kassem ,&nbsp;Kassem El Cheikh Ali ,&nbsp;Ahmed Sefelnasr ,&nbsp;Mohsen Sherif","doi":"10.1016/j.resenv.2023.100140","DOIUrl":"10.1016/j.resenv.2023.100140","url":null,"abstract":"<div><p>Seawater intrusion (SWI) stands as a significant challenge impacting coastal aquifers worldwide. The emergence of SWI is a natural phenomenon owing to the density difference between seawater and freshwater. Even without any pumping, the seawater naturally advances inland until a hydrostatic equilibrium between the two water sources is reached. However, human interventions, such as excessive groundwater extraction, coastal developments, and land use as well as climate change intensify the SWI predicament. Efficient solutions to counteract the SWI problem involve the implementation of hydraulic barriers. By employing the Henry problem as a benchmark, the Finite Element Simulator (FEFLOW), which is a numerical modeling software, was used for simulating the flow and transport processes. An integrated FEFLOW-Python code was developed to optimize hydraulic barriers for mitigating SWI. The methodology aims to achieve the maximum possible reduction in SWI by iteratively adjusting the locations and rates of pumping and injection wells. Unlike other investigations, this study explores the utilization of negative SWI barriers to extract brackish water from the dispersion zone and potentially offer a cost-effective alternative water source for desalination plants’ intakes. For the Henry Problem, to maximize the reduction in of SWI, brackish water extraction wells should be situated near the center-bottom of the intrusion zone, with a pumping rate of 2.5 m³/day. For injection wells, the optimal location varies depending on the injection rate (I). Achieving the highest retardation (61%) occurs when the injection rate is 1 m³/day, positioned at the aquifer’s bottom and close to the coastal boundary. However, for injection rates below 0.7 m³/day, the injection well’s optimal location shifts towards the seawater intrusion toe. This study presents a novel approach by establishing explicit correlations for optimizing hydraulic barriers to effectively manage and mitigate SWI.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"15 ","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666916123000336/pdfft?md5=772b1fbdf0f26a6459765e72b7178f4b&pid=1-s2.0-S2666916123000336-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135765791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time series and ensemble models to forecast banana crop yield in Tanzania, considering the effects of climate change","authors":"Sabas Patrick ,&nbsp;Silas Mirau ,&nbsp;Isambi Mbalawata ,&nbsp;Judith Leo","doi":"10.1016/j.resenv.2023.100138","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100138","url":null,"abstract":"<div><p>Banana cultivation plays a pivotal role in Tanzania’s agricultural landscape and food security. Precisely forecasting banana crop yield is essential for resource optimization, market stability, and informed policymaking, particularly in the face of climate change. This study employed time series and ensemble models to forecast banana crop yield in Tanzania, offering crucial insights into future production trends. We utilized Seasonal ARIMA with Exogenous Variables (SARIMAX), State Space (SS), and Long Short-Term Memory (LSTM) models, chosen based on regression analysis and data exploration. Leveraging historical banana yield data (1961–2020) and relevant climate variables, we formulated an ensemble model using a weighted average approach. Our findings underscore the potential of time series and ensemble models for accurate banana crop yield forecasting. Statistical evaluation metrics validate their effectiveness in capturing temporal variations and delivering reliable predictions. This research advances agricultural forecasting by demonstrating the successful application of these models in Tanzania. It emphasizes the importance of considering temporal dynamics and relevant factors for precise predictions. Policymakers, farmers, and stakeholders can leverage this study’s outcomes to make informed decisions on resource allocation, market planning, and agricultural policies. Ultimately, our research bolsters sustainable banana production and enhances food security in Tanzania.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"14 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49837319","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}

{"title":"Local–global dual attention network (LGANet) for population estimation using remote sensing imagery","authors":"Yanxiao Jiang ,&nbsp;Zhou Huang ,&nbsp;Linna Li ,&nbsp;Quanhua Dong","doi":"10.1016/j.resenv.2023.100136","DOIUrl":"https://doi.org/10.1016/j.resenv.2023.100136","url":null,"abstract":"<div><p>Accurate and rapid censuses can provide detailed basic information for a country, which is useful for resource allocation, disease control, disaster prevention, urban planning, and business management. However, traditional censuses often take up much time, manpower, and financial resources. Population maps are created by national statistical institutes at statistical units. Remote sensing imagery combined with end-to-end deep learning models makes it possible to estimate a wide range of populations at a low cost. This study demonstrates the effectiveness of a local–global dual attention network (LGANet) for population estimation using remote sensing images. The LGANet contains a local attention embranchment and a global attention embranchment on the top of the backbone to adaptively learn and integrate two discriminative features simultaneously. To enhance the precision of population estimation, the outputs from the two attention modules are combined. This method utilizes daytime remote sensing images as input, complemented by nighttime light data, to estimate the population on 1 km grids. Our method exhibits superior accuracy compared to other deep learning methods, as evidenced by an experimental comparison between the estimated population and the ground-truth population in 1 km grids.</p></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"14 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49837320","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}