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Analysis of Commuting Modal Shift in Consideration of Social Interaction of Consciousness for environment

Journal of Traffic and Transportation Engineering 2024年第2期12卷 63-80页

作者： Masashi Okushima Institute of Technology and Science The University of TokushimaTokushima 770-8506Japan

It is the matter for achievement of the low carbon transport system that the excessive use of private vehicles can be controlled *** only improvement of service level of modes except private vehicle,but also consciousness for environmental problem of individual trip maker is important for eco-commuting *** the other hand,consciousness for environment would be changed by influence of other ***,it is aimed in the study that the structure of decision-making process for modal shift to the eco-commuting mode in the local city is described considering environmental consciousness and social *** the purpose,the consciousness for the environment problem and the travel behavior of the commuter at the suburban area in the local city are investigated by the questionnaire *** covariance structure about the eco-consciousness is analyzed with the database of the questionnaire survey by structural equation *** the result,it can be confirmed with the structural equation model that the individual environmental consciousness is strongly related with the intention of self-sacrifice and is influenced with the local interaction of the individual *** the other hand,the intention of modal shift for the commuting mode is analyzed with the database of the questionnaire *** can be found out that the environmental consciousness is not statistically significant for commuting mode choice with the present poor level of service of public ***,the intention of self-sacrifice for the prevention of the global warming is statistically confirmed as the factor of modal shift with the operation of eco-commuting bus service with the RP/SP integrated estimation *** the result,the multi-agent simulation system with social interaction model for eco consciousness is developed to measure the effect of the eco-commuting *** the purpose,the carbon dioxide emission is estimated based on traffic demand an

关键词： Greenhouse gas emission modal shift structural equation model RP/SP combined estimation multi-agent simulation local interaction small world network consciousness for environment commuting shuttle bus local city

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Inter-annual variations of dissolved oxygen and hypoxia off the northern Changjiang River(Yangtze River) Estuary in summer from 1997 to 2014

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Acta Oceanologica Sinica 2024年第6期43卷 119-130页

作者： Anqi Liu Feng Zhou Xiao Ma Qiang Zhao Guanghong Liao Yuntao Zhou Di Tian Xiaobo Ni Ruibin Ding College of Oceanography Hohai UniversityNanjing 210098China State Key Laboratory of Satellite Ocean environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China Observation and Research Station of Changjiang River Delta Marine Ecosystems Ministry of Natural ResourcesZhoushan 316022China Ningbo Marine Center Ministry of Natural ResourcesNingbo 315000China School of Oceanography Shanghai Jiao Tong UniversityShanghai 200240China Institute of Polar and Ocean Technology Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China

Hypoxia off the Changjiang River Estuary has been the subject of much attention,yet systematic observations have been lacking,resulting in a lack of knowledge regarding its long-term change and *** revisiting the repeated surveys of dissolved oxygen(DO) and other relevant hydrographic parameters along the section from the Changjiang River Estuary to the Jeju-do in the summer from 1997 to 2014,rather different trends were revealed for the dual low-DO *** nearshore low-DO core,located close to the river mouth and relatively stable,shows that hypoxia has become more severe with the lowest DO descen ding at a rate of -0.07 mg/(L·a) and the thickness of low-DO zone rising at a rate of 0.43 m/*** offshore core,centered around 40-m isobath but moving back and forth between 123.5°-125°E,shows large fluctuations in the minimum DO concentration,with the thickness of low-DO zone falling at a rate of -1.55 m/*** probable factors affecting the minimum DO concentration in the two regions also *** the nearshore region,the decreasing minimum DO is driven by the increase in both stratification and primary productivity,with the enhanced extension of the Changjiang River Diluted Water(CDW) strengthening *** the offshore region,the fluctuating trend of the minimum DO concentration indicates that both DO loss and DO supplement are *** DO loss is primarily attributed to bottom apparent oxygen utilization caused by the organic matter decay and is also relevant to the advection of low-DO water from the nearshore *** DO supplement is primarily due to weakened *** analysis also shows that the minimum DO concentration in the nearshore region was extremely low in 1998,2003,2007 and 2010,related to El Ni?o signal in these summers.

关键词： dissolved oxygen low-DO Changjiang River Estuary interannual variations dual-core

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Dynamic Ensemble Multivariate Time Series Forecasting Model for PM2.5

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Computer Systems Science & Engineering 2023年第2期44卷 979-989页

作者： Narendran Sobanapuram Muruganandam Umamakeswari Arumugam School of Computing SASTRA UniversityThanjavur613401India

In forecasting real time environmental factors,large data is needed to analyse the pattern behind the data *** pollution is a major threat towards developing countries and it is proliferating every *** methods in time ser-ies prediction and deep learning models to estimate the severity of air *** independent variable contributing towards pollution is necessary to analyse the trend behind the air pollution in that particular *** approach selects multivariate time series and coalesce a real time updatable autoregressive model to forecast Particulate matter(PM)*** perform experimental analysis the data from the Central Pollution Control Board(CPCB)is *** is car-ried out for Chennai with seven locations and estimated PM’s using the weighted ensemble *** method for air pollution prediction unveiled effective and moored performance in long term *** budge with high weighted k-models are used simultaneously and devising an ensemble helps to achieve stable *** time of ensemble decreases with paral-lel processing in each sub *** ensemble model shows high perfor-mance in long term prediction when compared to the traditional time series models like Vector Auto-Regression(VAR),Autoregressive Integrated with Mov-ing Average(ARIMA),Autoregressive Moving Average with Extended terms(ARMEX).Evaluation metrics like Root Mean Square Error(RMSE),Mean Absolute Error(MAE)and the time to achieve the time series are compared.

关键词： Dynamic transfer ensemble model air pollution time series analysis multivariate analysis

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Effectiveness of ultrafine bubbles and gamma irradiation treatments to improve seed viability and vigor of Albizia chinensis(Osbeck)Merr.

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Journal of Forestry Research 2022年第5期33卷 1607-1613页

作者： Dede J.Sudrajat Anindyta Putri Y.Aris Purwanto Iskandar Z.Siregar Forest Tree Seed Technology Research and Development Center Jl.Pakuan CiheuleutPO BOX 105BogorWest JavaIndonesia Department of Silviculture Faculty of Forestry and EnvironmentIPB UniversityJl.Lingkar Kampus DramagaBogor 16680West JavaIndonesia Department of Mechanical and Biosystem Engineering IPB UniversityJl.Lingkar Kampus DramagaBogor 16680West JavaIndonesia

Ultrafine bubbles and low doses of gamma irradiation had a positive effect on seed *** research tested the effectiveness of ultrafine bubbles(UFB)water and gamma irradiation for improving the viability and vigor of Albizia chinensis(Osbeck)*** that had been stored for four years.A completely randomized two-factor experiment,i.e.,UFB water and gamma irradiation treatments,were used to determine the best seed *** UFB water treatment had a significant effect on all seed germination parameters;the gamma irradiation treatment did not have a significant effect on improving the viability and vigor of the seeds,with a very low initial germination(11.7%).Soaking the seeds in UFB water for 30 min gave the best germination(51.3%).These improvements also occurred in other germination parameters such as germination rate,germination value,radicle length and vigor *** UFB water treatment has the potential to improve the germination of seeds with low physiological qualities.

关键词： Albizia chinensis Gamma rays Germination Ultrafine bubbles

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Augmenting freshwater availability in mountain headwater streams:Assessing the sustainability under baseline and future climate change scenarios

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International Soil and Water Conservation Research 2022年第2期10卷 293-307页

作者： Bisrat Ayalew Yifru Il-Moon Chung Min-Gyu Kim Sun Woo Chang Department of Land Water and Environment ResearchKorea Institute of Civil Engineering and Building TechnologyGoyang10223South Korea Department of Civil and environmental Engineering University of Science and TechnologyDaejeon34113South Korea

Mountain headwater streams are important freshwater sources,but they are mostly intermittent and highly susceptible to climate *** paper examines the sustainability of augmented freshwater availability in mountain headwater streams for water supply under baseline and future climate change scenarios using an integrated modeling *** climate change data in the 2040s(2030e2059),under Representative Concentration Pathway 4.5 and 8.5 scenarios,were downscaled for the impact *** the region,climate change raises the average precipitation by 5e7%and the temperature by 13e15%in the *** model,integrating Soil and Water Assessment Tool(SWAT2012)and finite-difference Modular Groundwater Flow(MODFLOW)models in a single package,was used to assess the water *** show that extracting a minimum of 16.2 m^(3)/day from the sand storage and 30 m^(3)/day from the aquifer was possible without affecting the groundwater table and water *** average annual catchment recharge was 6%of the precipitation under the baseline *** change is projected to reduce the average water yield and groundwater recharge by 26%and 19%,***,the water supply-demand is significantly small compared to the exploitable rate of water in the *** study was based on limited data,and therefore the findings need to be interpreted with caution,though the model output was validated using satellite *** of a series of sand dams is suggested to maximize the benefit under the potential climate change and water supply-demand increase.

关键词： Headwater stream Sand dam Korea SWATeMODFLOW Water conservation Climate change

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Ecological Status and Uses of Juniper Species in the Cold Desert environment of the Lahaul Valley, North-western Himalaya, India

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Journal of Mountain Science 2012年第5期9卷 676-686页

作者： Yashwant S.RAWAT Colin S.EVERSON School of Agricultural Earth and Environmental SciencesUniversity of KwaZulu-Natal

The juniper species Juniperus polycarpos C. Koch, J. indica Bertol. and J. communis L. var. saxatilis (Pallas) are important elements of the forest vegetation in Lahaul valley in the north-western Himalaya. Their ability to grow under the barren and xeric conditions of cold deserts makes them particularly suited for afforestation programmes under these ecological conditions. In the Lahaul valley, juniper species are used as subsistence resources and for religious purposes. Excessive removal of juniper wood and leaves by the local population, overgrazing, habitat fragmentation and low regeneration potential are the main obstacles to conservation of juniper forests in this region. The present study was carried out to assess density, basal area and importance value index (IVI) of the local vegetation as well as uses and amounts of juniper wood and leaves removed from the local forests. Pressure on relict juniper forests due to grazing animals and intensive removal of wood and leaves by the local population was found to be greater at an altitude above 3,000 m. The results of the study demonstrated that the different juniper species were adapted to specific altitude ranges. A higher species density was recorded at lower altitude except for J. indica which was only present at high altitude (>3,200 m) on south-facing slopes. Density, basal area and IVI of J. polycarpos were higher at Hinsa (2,700 m) than at Jahlma (3,000 m). The rapid loss of vegetation due to overuse and habitat degradation has made the conservation of juniper forests an important priority in the Lahaul valley. J. polycarpos at lower altitude and J. indica at higher altitude are ecologically the more suitable species for the successful implementation of conservation programmes. The support of rehabilitation programmes by regional authorities is essential for the reestablishment of the local juniper forests.

关键词：喜马拉雅山脉沙漠环境生态环境现状物种寒冷用途森林植被高海拔地区

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Post-orogenic transients and relict landforms of the Bafoussam–Mamfe region(West-Cameroon Highland margin)

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Journal of Mountain Science 2022年第8期19卷 2180-2201页

作者： Pascal Landry WABO DEFO Sébastien OWONA Moussa NSANGOU NGAPNA Christian BALLA ATEBA Christian MWABANUA MUTABI The University of Douala Faculty of ScienceDepartment of Earth SciencesDouala 24157Cameroon The University of Lubumbashi Faculty of ScienceDepartment of GeologyLubumbashi 1825Democratic Republic of Congo

The Bafoussam-Mamfe Region(BMR)belongs to the Western Cameroon Highland margin,an amalgam of transient landscape that evolved from the interactions between tectonics,lithology and climate *** area is tectonically active and shows differential tectonic uplift,contrasting relief,variations in erosion rates,in river incision,and in channel *** order to appraise the BMR tectono-geomorphic evolution,it is essential to understand relationships between internal and external processes and their geomorphic expression at a river basin *** this purpose,we use drainage texture(Dt),stream frequency(Fs),drainage density(Dd),asymmetry factor(AF),the transverse topographic symmetry factor(TTSF),the mean of mountain front sinuosity per unit(Smf),concavity factor(Cf),hypsometry integral(HI)and streamlength gradient index(SL-index)based on 30 m Digital Elevation Models(DEM)and field *** results reveal considerable variations in geology,relief,topography and geomorphic indices values differentiated into three geomorphic units;the Mamfe unit developed on the Mamfe Cretaceous basin,the Nguti and Bafoussam high plateau units build up on the Precambrian granito-gneissic basement overlaid by a volcanic *** stepped(longitudinal and normalized)river profiles and complex hypsometric curves show the lithostructural control of the hydrographic ***(from~1.21 to~4.59),Fs(from~0.26 to~1.91),Dd(from~0.66 to~1.71)geomorphic indice values indicate a part of lithologic control on this morphology while the AF(from~1.16to~24.91),TTSF(from~0.20 to~0.71),Smf(U2=1.11 and U3=1.19),Cf(from~-20.91 to~78.93),HI(from~0.12 to~0.52)and SL-index designate the active tectonics as the main factor that had controlled the morphology of this same *** results pinpoint the combined post-Pan-African to Recent tectonic features,lithologic heterogeneities and the differential erosion processes as main factors that have controlled the BMR *** results highlight how

关键词： Geomorphic indices Tectonic,Lithology Differential erosion Bafoussam-Mamfe Cameroon

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Implication of sewage sludge increased application rates on soil fertility and heavy metals contamination risk

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Emerging Contaminants 2023年第1期9卷 41-52页

作者： Abdelmajid Achkir Abdelhakim Aouragh Mohammed El Mahi El Mostapha Lotfi Najoua Labjar Mohammed EL Bouch Moulay Lahcen Ouahidi Taruvinga Badza Hamid Farhane Tawfik EL Moussaoui Laboratory of Spectroscopy Molecular ModellingMaterialsNanomaterialsWater and EnvironmentCERN2DENSAMMohammed V University in Rabat10100Morocco National Laboratory for Studies and Pollution Monitoring-ministry of Energy Mines and EnvironmentDepartment of EnvironmentRabatMorocco School of Agricultural Earth and Environmental SciencesUniversity of KwaZulu-NatalPrivate Bag X01ScottsvillePietermaritzburg3209South Africa Team of Anthropogenetic Sciences and Biotechnologies Faculty of SciencesChouaib Doukkali UniversityEl Jadida24000Morocco Resources Valorization Environment and Sustainable Development Research Team(RVESD)Department of MinesMines School of RabatAve Hadj Ahmed CherkaouiBP 753AgdalRabat53000Morocco

This paper aims to assess soil fertility and risk contamination parameters in response to increased amendment rates of sewage sludge application,under semi-arid climatic conditions of Morocco,using two soil textures:soil A(clay-silty)and soil B(sandy-clay)over two *** this end,sewage sludge and soils treatments physicochemical parameters,heavy metals content,degree of pollution and associated risks were evaluated and compared to controlled *** results showed that all studied parameters changed significantly(pPb>Zn>Ni>Cd>***,their concentrations were below the critical values established by the European Union for the agronomic use of *** obtained results of assessed parameters indicating SS degree of pollution and associated risks showed a low to a moderate contamination risks of heavy ***,environmental risks of sewage sludge application will be related to increase of heavy metals mainly in a long-term agricultural ***,optimal management of sewage sludge application is recommended to ensure sustainability and benefits at the same time to master the contamination risks.

关键词： Sewage sludge Soil Land application Fertility Heavy metals Risk assessment

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Distribution and conservation of near threatened plants in China

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Plant Diversity 2023年第3期45卷 272-283页

作者： Qin Liu Tian-Tian Xue Xiao-Xia Zhang Xu-Dong Yang Fei Qin Wen-Di Zhang Lei Wu Rainer W.Bussmann Sheng-Xiang Yu State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China College of Forestry Central South University of Forestry and TechnologyChangsha 410004China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Institute of Botany and Bakuriani Alpine Botanical Garden Ilia State UniversityBotanical Str.1Tbilisi 0105Georgia Department of Botany State Museum for Natural History KarlsruheErbprinzenstraße 13Karlsruhe 76133Germany

Plants classified as Near Threatened(NT) are at high risk of becoming threatened because of anthropogenic interference and climate *** in conservation efforts,such species have however long been ***,we obtained 98,419 precise occurrence points for 2442 NT plants in China,and used species richness,species complementarity,and weighted endemism that consider all,endemic and narrow-ranged species in order to identify the diversity hotspots of NT *** we evaluated the conservation effectiveness of current nature reserves for *** results indicate that the diversity hotspots of NT plants were mainly confined to southwestern and southern China,and only 35.87% of hotspots and 71.5% of species were protected by nature *** hotspots in southwestern China(e.g.,Sichuan,Yunnan,Guangxi,and Hainan) were identified as conservation *** that NT plants include large proportions of endemic and narrow-ranged species,they represent an important value in conservation ***,more conservation efforts in the future should be tilted towards NT ***,when comparing with the recently updated NT list,there are already 87 species raised to threatened categories,while 328 species were lowered to least concern,56 species were now categorized as data deficient,and 119 species considered as uncertain due to changes of scientific *** is essential to carry out a continuous assessment of species’ threatened categories to realize targeting conservation.

关键词： Conservation Distribution patterns Diversity hotspots Nature reserves Red list Near threatened species

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Technology portfolio assessment for near-zero emission iron and steel industry in China

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Advances in Climate Change Research 2023年第3期14卷 469-478页

作者： Wei-Yi JIANG Tae Yong JUNG Han-Cheng DAI Pian-Pian XIANG Graduate School of International Studies Yonsei UniversitySeoul 03722South Korea College of environmental Science and Engineering Peking UniversityBeijing 100871China Faculty of environment and Life Beijing University of TechnologyBeijing 100124China

China aims to peak CO_(2)emissions before 2030 and to achieve carbon neutrality before 2060;hence,industrial sectors in China are keen to figure out appropriate pathways to support the national target of carbon *** objective of this study is to explore near-zero emission pathways for the steel industry of China through a detailed technology *** innovative technology development has been simulated using the AIM-China/steel model,developed by including material-based technologies and optimal cost *** scenarios have been given in terms of different levels of production output,emission reduction and carbon ***-zero emission and carbon tax scenarios have shown that China's steel industry can achieve near-zero emission using electric furnaces and hydrogen-based direct reduction iron technologies with policy *** on these technologies,minimised production costs have been calculated,revealing that the steel produced by these technologies is ***,the feedstock cost can play a key role in these technology portfolios,especially the cost of scrap,iron ore and *** addition,the feedstock supply can have strong regional effects and can subsequently impact the allocation of steelmaking in the ***,China can achieve near-zero emissions in the steel industry,and electric furnace and hydrogen-based direct reduction iron technologies are crucial to achieving them.

关键词： Steel industry Near-zero emission Cost optimisation Climate change Carbon neutrality Technology learning

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