Sustainability in environment最新文献

The Role of the Giant Tortoises in the Ecosystem 巨龟在生态系统中的作用

Sustainability in environment Pub Date : 2024-07-17 DOI: 10.22158/se.v9n3p85

Jinxiu Luo, Yang Ruilu

引用次数: 0

Research on the Joint Evaluation of Geological Disaster Susceptibility Based on Fractal Theory and Hierarchical Analysis Method 基于分形理论和层次分析法的地质灾害易发性联合评价研究

Sustainability in environment Pub Date : 2024-07-12 DOI: 10.22158/se.v9n3p76

Ying Huang

{"title":"Research on the Joint Evaluation of Geological Disaster Susceptibility Based on Fractal Theory and Hierarchical Analysis Method","authors":"Ying Huang","doi":"10.22158/se.v9n3p76","DOIUrl":"https://doi.org/10.22158/se.v9n3p76","url":null,"abstract":"In recent years, strong earthquakes and extreme climate events occur frequently in southwest China, forming a large number of mass geological disasters, which seriously threaten the life and property safety of local people. Therefore, so it is particularly important to carry out the refined evaluation of regional geological disaster susceptibility. On the basis of summarizing the previous research results, in the mountain area of mianzhu, Sichuan province, selected elevation, undulation, slope, stratum, fault, drainage, highway, based on the fractal theory (FT) joint level analysis (AHP) evaluation model, realize the study area fine geological disaster prone evaluation, make up for the traditional method in terms of weight determination and calculation accuracy. The evaluation results show that the extremely high prone area and the high prone area are basically concentrated in the low fluctuation area, low slope area, dense water system area and fault concentration area, with an area of 90.38km2 (13.63%). The AUC value of the combined model was 0.865, indicating that the evaluation results have high accuracy and reliability, which can provide necessary support for the geological disaster prevention and control work in Mianzhu city, and can also provide reference for the evaluation of geological disaster susceptibility in similar areas.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":"38 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141655251","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}

引用次数: 0

The Impact of Urban Green Patches on Air Pollutant Concentration: A Case Study of Hangzhou 城市绿地对空气污染物浓度的影响：杭州案例研究

Sustainability in environment Pub Date : 2024-07-05 DOI: 10.22158/se.v9n3p52

Hao Tao, Rikun Wen, Liu Yang, Chingaipe N’tani

{"title":"The Impact of Urban Green Patches on Air Pollutant Concentration: A Case Study of Hangzhou","authors":"Hao Tao, Rikun Wen, Liu Yang, Chingaipe N’tani","doi":"10.22158/se.v9n3p52","DOIUrl":"https://doi.org/10.22158/se.v9n3p52","url":null,"abstract":"To explore the impact of landscape pattern index on air pollutant, this study takes the annual average concentrations of PM2.5, O3, PM10, and NO2 at 14 national air quality monitoring stations in Hangzhou from 2014 to 2021 as the dependent variables, and selects five landscape pattern indices of green patches within 500m of the monitoring stations as independent variables. An enhanced regression tree model was used to study the influence of landscape patterns on the concentrations of the four air pollutants. The results show that the most significant influencing factors for the concentrations of PM2.5, O3, PM10, and NO2 are the aggregation index, Shannon's diversity index, aggregation index, and largest patch index respectively, with relative influence rates of 29.27%, 25.06%, 31.28%, and 28.58%, respectively. The aggregation index has a significant impact on all types of air pollutants and plays a good role in reducing air pollution. With higher regional patch aggregation index, the concentration of air particulate matter and nitrogen oxides is greatly alleviated. The largest patch index is significantly negatively correlated with air particulate matter and ozone concentration, and an increase in green areas has a good mitigating effect on these two types of air pollutants. As the Shannon diversity index increases, there is a general trend of decreasing particulate matter concentration, while the concentrations of nitrogen dioxide and ozone show a decrease as well. This suggests that the complexity of landscape shape and boundaries is conducive to the reduction of nitrogen dioxide and ozone concentrations to a certain extent.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":" 36","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141676064","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}

引用次数: 0

Research on the Characteristics of the Spatial and Temporal Distribution and Influencing Factors of Carbon Emissions: The Case of Chengdu 碳排放时空分布特征及影响因素研究：以成都为例

Sustainability in environment Pub Date : 2024-07-05 DOI: 10.22158/se.v9n3p40

Chenyue Hong

引用次数: 0

Research on Landslide Disaster Risk Assessment and Mitigation Strategies Based on GIS 基于 GIS 的滑坡灾害风险评估与减灾策略研究

Sustainability in environment Pub Date : 2024-06-11 DOI: 10.22158/se.v9n3p25

Yuzhao Li, Yao Huang

引用次数: 0

Combustion of Sugarcane Bagasse Pellets Produced with/without Glycerol: Chemical, Thermal and Emission Analyses 使用/不使用甘油生产的甘蔗渣颗粒的燃烧：化学、热和排放分析

Sustainability in environment Pub Date : 2024-06-07 DOI: 10.22158/se.v9n3p9

Gilvan R. Santos, Fabricianny L. Moreira, Rinaldo S. Araujo, Mona Lisa M. Oliveira, Francisco S.A. Cavalcante, Daniel S. Serra

{"title":"Combustion of Sugarcane Bagasse Pellets Produced with/without Glycerol: Chemical, Thermal and Emission Analyses","authors":"Gilvan R. Santos, Fabricianny L. Moreira, Rinaldo S. Araujo, Mona Lisa M. Oliveira, Francisco S.A. Cavalcante, Daniel S. Serra","doi":"10.22158/se.v9n3p9","DOIUrl":"https://doi.org/10.22158/se.v9n3p9","url":null,"abstract":"Purpose: Use of agricultural biomass in the form of pellets has gained worldwide prominence in recent decades, as part of the search for cleaner and renewable energy sources. Brazil is the largest sugarcane producer in the world, a fact that also places it as a major producer of residues from processing this crop. Methods: In this study, sugarcane bagasse pellets (SBP100) were handcrafted using glycerol as binder (30% - SBP30G) and, subsequently, analyses of their chemical and thermal properties, as well as those of the thermal decomposition exhaust gases, were conducted. Results: Average temperatures in the combustion range were 213.62±137.07° C (SBP100) and 211.97±86.85 °C (SBP30G). Combustion exhaust gas values were 20.04±0.15% (SBP100) and 19.95±0.19% (SBP30G) for O2; 1739.58±156.17 ppm (SBP100) and 1575±466.85 ppm (SBP30G) for CO; 19.92 ± 2.47 ppm (SBP100) and 17.33±4.69 ppm (SBP30G) for NOx; 341.67±134.37 ppm (SBP100) and 491.67±341.42 ppm (SBP30G) for CH4. SBP30G combustion proved to be less polluting with respect to CO and NOx generation than SBP100, but not for CH4. However, average thermal performance was similar for both. Conclusion: Use of glycerol contributed considerably to the changes in the pellets’ physical parameters. Exhaust gas analyses of the combustion of these substrates can serve as a basis for creating safety parameters and public policies to regulate the use of biomass for energy purposes.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372476","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}

引用次数: 0

Study on the Protection and Development Path of Linpan in Western Sichuan under the Background of Rural Revitalization 乡村振兴背景下川西临盘保护与发展路径研究

Sustainability in environment Pub Date : 2024-06-06 DOI: 10.22158/se.v9n3p1

Yimei Yang, You He, Yanmei Huang

引用次数: 0

Determination of NPS Fertilizer rate the Yield and Yield Components of Teff [Eragrostis tef (Zucc.) Trotter] in Kuyu District North Shewa Zone, Oromia, Ethiopia 埃塞俄比亚奥罗莫州北舍瓦区库尤县柚子产量和产量成分的氮磷钾肥率测定

Sustainability in environment Pub Date : 2024-03-20 DOI: 10.22158/se.v9n2p1

Dereje Girma, Tadele Geremu, Dejene Getahun, Meron Tolosa

{"title":"Determination of NPS Fertilizer rate the Yield and Yield Components of Teff [Eragrostis tef (Zucc.) Trotter] in Kuyu District North Shewa Zone, Oromia, Ethiopia","authors":"Dereje Girma, Tadele Geremu, Dejene Getahun, Meron Tolosa","doi":"10.22158/se.v9n2p1","DOIUrl":"https://doi.org/10.22158/se.v9n2p1","url":null,"abstract":"Tef is the main staple food of Ethiopia. It ranks first among cereals in the country in area coverage and second in production volume; however, its productivity is almost stagnant. The Degim Tef variety was sown during the main cropping season of 2020 and 2021 in the kuyu District, Northern Oromia, and Ethiopia. The objective of this study was to determine the NPS fertilizer rate relative the determined P-critical and P-requirement factors for tef and to estimate the economically feasible NPS fertilizer rate for higher yield of tef in kuyu District. Accordingly, statically analysis of variance showed that plant height, panicle length, biomass, and grain yield were significantly (P<0.05) influenced by NPS fertilizer rate with N fertilizer. The highest plant height (83.59 cm), of tef was recorded from the application of 75% P-critical from NPS fertilizer rate with recommended nitrogen panicle length (29.05cm), biomass yield (7509 kg ha-1) and grain yield (1635 kg ha-1) of tef were recorded from the application of 100% P-critical from NPS fertilizer rate supplemented with recommended Nitrogen whereas, the lowest value was recorded from the field unfertilized which was significantly inferior to all other treatments. Furthermore, the economic analysis showed that the application of NPS fertilizer at the rate of 100% P-critical from NPS fertilizer with recommended nitrogen fertilizer (92 kg N ha-1) for the production of tef was more economically beneficial for the district. Moreover, farmers and other end users could be advised to use 100% PC from NPS fertilizer rate with recommended nitrogen for tef production in the district and other areas having similar soil type and agro- ecology.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":"83 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140225099","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}

引用次数: 0

How Does the Certification Policy of Agricultural Products Affect the Adoption of Green Production Technologies by Farmers?—An Integrated Study 农产品认证政策如何影响农民采用绿色生产技术？

Sustainability in environment Pub Date : 2024-03-20 DOI: 10.22158/se.v9n2p11

Minghui Ding, Gao Kai, Chen Yan, Deng Siyu

{"title":"How Does the Certification Policy of Agricultural Products Affect the Adoption of Green Production Technologies by Farmers?—An Integrated Study","authors":"Minghui Ding, Gao Kai, Chen Yan, Deng Siyu","doi":"10.22158/se.v9n2p11","DOIUrl":"https://doi.org/10.22158/se.v9n2p11","url":null,"abstract":"This paper studied the influence of agricultural product certification policy on the adoption of green prevention and control technology by farmers. Firstly, we used SPSS24.0 software to analyze the influence mechanism between farmers’ behavioral attitudes, subjective norms, perceived behavioral control, safety responsibility awareness and farmers’ green prevention and control technology adoption. Then, hierarchical regression analysis was used to test the hypotheses proposed in the study, and the effects of farmers’ behavioral attitudes, subjective norms, perceived behavioral control, and policy incentives and constraints related to agricultural product certification on the behavioral intention and behavior of adopting green prevention and control technology were studied. The results showed that the behavioral attitude, adoption intention and policy incentives contained in the agricultural product certification policy had significant effects on the adoption opinions and adoption behaviors of farmers’ green prevention and control technology, but the effect of policy constraints on the adoption behaviors was not obvious. Finally, according to the research conclusions, we put forward policy suggestions from three aspects: publicity, guidance and research and development.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140227428","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}

引用次数: 0

Application Research of Fish-Plant Symbiosis Technology in a Urban Lake: A Case Study of the Environment Remediation Project with Machine Learning Application 鱼-植物共生技术在城市湖泊中的应用研究：应用机器学习的环境修复项目案例研究

Sustainability in environment Pub Date : 2024-02-19 DOI: 10.22158/se.v9n1p56

Xi Chen, Dunxian Lu, Tao Chen, Ti Liu, Yijuan Luo, Jing Liu, Shengjie Wei, Ying Liu

{"title":"Application Research of Fish-Plant Symbiosis Technology in a Urban Lake: A Case Study of the Environment Remediation Project with Machine Learning Application","authors":"Xi Chen, Dunxian Lu, Tao Chen, Ti Liu, Yijuan Luo, Jing Liu, Shengjie Wei, Ying Liu","doi":"10.22158/se.v9n1p56","DOIUrl":"https://doi.org/10.22158/se.v9n1p56","url":null,"abstract":"This research examines the Jiefang Park Water Environment Remediation Project, a pioneering initiative in urban lake rehabilitation. The project is anchored in a fish-plant symbiosis system, which has significantly improved water quality, upgrading it from Category V to Category III, and in certain zones, achieving the commendable Category II. This enhancement is quantitatively marked by a notable reduction in nitrogen and phosphorus levels, and a marked increase in water transparency, with submerged plants covering over 70% of the lakebed.A key innovation is the utilization of a machine learning model to predict chlorophyll-a concentration, a vital water quality metric. The model’s accuracy is underscored by its R² values, ranging from 0.23 to 0.99, and RMSE values between 6.921 and 0.237, with the best performance at point 1. Additionally, comprehensive measurement data highlight the project’s effectiveness. Water transparency significantly improved from baseline levels, as evidenced by increased dissolved oxygen levels at various sampling sites, indicative of restored ecological equilibrium in the lake. This study represents an exemplary fusion of ecological restoration and advanced data analytics, signifying a substantial advancement in urban lake restoration. It underscores the potential of combining synergistic ecological approaches with technological innovation to further sustainable urban environmental management.","PeriodicalId":485531,"journal":{"name":"Sustainability in environment","volume":"24 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140450286","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}

引用次数: 0