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Assessing the knowledge and attitude of elementary school students towards environmental issues in Rawalpindi 评估拉瓦尔品第小学生对环境问题的知识和态度
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151001
N. Rehman, Wen Zhan, M. S. Khalid, Mussarat Iqbal, A. Mahmood
Educational institutions need to increase their efforts in the modern era of Education for Sustainable Development (ESD) to educate their students for a sustainable future. Teachers and curriculum is the key ingredient to educate children and teenagers to be leaders of tomorrow in protecting the environment. This quantitative study was conducted to examine elementary school students' knowledge and attitudes towards environmental issues in Rawalpindi. The environment is directly and indirectly affected by humanity. The environment is getting polluted day by day due to which it becomes difficult to live in such a massive environment. To achieve this, there is a need to develop knowledge and attitudes in each individual. For this purpose, the population of the study consisted of all the public and private schools of the Rawalpindi. A hundred students of the ten schools, five public and five private schools of Rawalpindi, were taken as a sample for data collection. To check the attitudes of students' the questionnaire-based Relevance of Science Education (ROSE) Project was used to measure a student's attitudes and to measure the knowledge of students' self-made knowledge assessment test was used to collect the data from 7thgrade students'. The study examined the knowledge and attitude of elementary school students in public and private schools. The study also checked and compared students' knowledge and attitudes in public and private schools of Rawalpindi. Data was analyzed on SPSS software; Cross tabulation and chi-square were used to check students' knowledge. The Independent t-test was used to measure the attitudes of students. The results indicated no significant difference between government and private school students' knowledge and attitudes. Private school students' had slightly more knowledge than public school students but this difference was not significant. The public and private school students had a positive attitude towards environmental issues. Students owned environmental problems and were highly motivated to solve these problems. They were agreed to take action for the betterment of the future. As a result, sustainable development from elementary school to university necessitates a paradigm shift in our educational systems. Indeed, a sustainable way of life is impossible to achieve without a proper education system that teaches our youth how to integrate sustainability principles into their daily lives and work. Significant progress has been made in integrating environmental values into current curricula, developing new approaches and producing educational content for effective EE implementation in both programmes, since it was a government initiative to integrate environmental concepts into established curricula, devise different approaches and prepare training materials for ef Teacher teaching is therefore important in both Pakistani education systems to improve vital thinking skills and to react positively to the world about pot
在可持续发展教育(ESD)的现代时代,教育机构需要加大努力,为可持续的未来教育学生。教师和课程是教育儿童和青少年成为未来保护环境的领导者的关键因素。本研究旨在调查拉瓦尔品第小学生对环境议题的认知与态度。环境受到人类直接或间接的影响。环境日益受到污染,因此在这样一个巨大的环境中生活变得困难。要做到这一点,就需要培养每个人的知识和态度。为此,研究对象包括拉瓦尔品第的所有公立和私立学校。以拉瓦尔品第10所学校,5所公立学校和5所私立学校的100名学生为样本进行数据收集。为了检验学生的态度,采用科学教育相关性问卷(ROSE)项目对学生的态度进行测量,采用学生自创知识评估测试对七年级学生的知识进行测量。本研究考察了公立学校和私立学校小学生的知识和态度。该研究还检查并比较了拉瓦尔品第公立学校和私立学校学生的知识和态度。数据采用SPSS软件进行分析;采用交叉表法和卡方法对学生的知识进行检验。采用独立t检验来衡量学生的态度。结果显示,公办学校与私立学校学生的知识和态度无显著差异。私立学校学生的知识水平略高于公立学校学生,但差异不显著。公立学校和私立学校的学生对环境问题持积极态度。学生们有环境问题,并有很强的动力去解决这些问题。他们同意采取行动改善未来。因此,从小学到大学的可持续发展需要我们教育系统的范式转变。事实上,如果没有一个适当的教育体系,教导我们的年轻人如何将可持续发展原则融入他们的日常生活和工作中,可持续的生活方式是不可能实现的。在将环境价值纳入现行课程、制定新办法和编制教育内容以便在这两个方案中有效实施环境效益方面取得了重大进展,因为将环境概念纳入既定课程是政府的一项倡议。因此,在巴基斯坦的教育系统中,教师教学对于提高重要的思维技能和对潜在的巴基斯坦人做出积极的反应是很重要的。
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引用次数: 0
Logistic and environmental quality 物流与环境质量
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151003
Y. Subramaniam
Logistic performance has been improved tremendously in many parts of the world. Nonetheless, its improvement does not necessarily guarantee that environmental quality can be preserved. Hence, it is the objective of this study to examine the effect of logistic improvement on environmental degradation in developing countries. Applying dynamic panel model estimator for a panel of 50 developing countries for the period between 2010 and 2016, this study observes that the level of pollution tends to be higher with a higher level of logistic performance. The findings show that developing countries that did not adopt green practices on logistic performance pose negative effects in terms of air pollution, climate change, and global warming. Thus, the efforts to reduce environmental degradation must be comprehensive enough and the priority of environmental policies should be in the first place, targeting logistic performance. In other words, performance measure of logistic should also take into account its contribution to environmental quality.
在世界许多地方,物流绩效得到了极大的提高。然而,它的改善并不一定能保证环境质量得以保持。因此,本研究的目的是研究物流改善对发展中国家环境退化的影响。本研究对2010年至2016年期间50个发展中国家的面板进行了动态面板模型估计,结果发现,物流绩效水平越高,污染水平越高。研究结果表明,未在物流绩效方面采取绿色实践的发展中国家在空气污染、气候变化和全球变暖方面造成了负面影响。因此,减少环境退化的努力必须是全面的,环境政策的优先权应该放在第一位,以物流绩效为目标。换句话说,物流的绩效衡量也应该考虑到它对环境质量的贡献。
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引用次数: 2
Current Status and Challenges of Microalgae as an Eco-Friendly Biofuel Feedstock: A Review 微藻作为一种生态友好型生物燃料原料的现状和挑战:综述
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151014
N. Mishra, Saurabh Mishra, R. Prasad
Global warming, depleting energy reserve and raising demand have created a upsurge for alternative and environmentally friendly renewable energy sources. Currently, microalgae have recognized as a promising biofuel feedstock’s due to the several unique characteristics includes high productivity, no competition for arable land, fresh water and high CO2 sequestration efficiency. High caloric value, low density and low viscosity make it promising source of renewable energy. They also serve the dual purpose of biofuel production along with the production of potentially valuable biomass, which could be utilize for phyco-remediation, food, animal feeds, fertilizers, drugs etc. In spite of huge opportunity, only few algae species were investigated till date. This review paper presents the brief view on the potential of microalgae for biofuel feedstock, different culturing system, algal conversion technology. In addition, hurdles in commercialization of algal based biofuel technology and strategies were also discussed.
全球变暖、能源储备枯竭和需求增加,催生了对替代和环保可再生能源的热潮。目前,微藻已被公认为一种很有前途的生物燃料原料,因为其具有几个独特的特性,包括高生产力、无耕地竞争、淡水和高二氧化碳封存效率。高热值、低密度和低粘度使其成为有前景的可再生能源。它们还具有生物燃料生产和潜在有价值生物质生产的双重用途,可用于藻类修复、食品、动物饲料、肥料、药物等。尽管有巨大的机会,但迄今为止,只有少数藻类物种被研究。本文简要介绍了微藻作为生物燃料原料的潜力、不同的培养体系、藻类转化技术。此外,还讨论了藻类生物燃料技术商业化的障碍和策略。
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引用次数: 0
Old proverbs for a future sustainable development: An environmental management perspective 关于未来可持续发展的古训:环境管理视角
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151008
Cezar Scarlat, A. Petrisor
Although the concept of “sustainability” is attributed to Dr. Gro Harlem Brundtland, the principle of inter-generational equity substantiating it is older, at least in the Romanian tradition. This article attempts to take the first steps in looking for the roots of environmental sustainability starting from the traditional wisdom synthesized in proverbs, focusing on the sustainable environmental management. For this purpose, the universal and international principles of environmental law, which are interconnected to the concepts of environmental management (responsibility for protecting the environment) and scientific management in general (functions of the management, decision theory) are used as the backbone of a taxonomic approach. The concept of managerial responsibility takes in ecology the form of individual, group and collective responsibility for the decisions and actions related to the protection of the environment, and also the form of social responsibility. This study continues previous researches of the authors, opening the way to other trans- and interdisciplinary studies. Its main limitation (to Romanian proverbs) gives a possible direction for further research.
尽管“可持续性”的概念是由Gro Harlem Brundtland博士提出的,但证明这一概念的代际公平原则由来已久,至少在罗马尼亚传统中是这样。本文试图从谚语中综合的传统智慧入手,以可持续的环境管理为重点,探寻环境可持续性的根源。为此目的,环境法的普遍和国际原则与环境管理(保护环境的责任)和一般科学管理(管理的职能、决策理论)的概念相互关联,被用作分类方法的支柱。管理责任的概念在生态学中表现为个人、团体和集体对与保护环境有关的决策和行动的责任,以及社会责任的形式。本研究延续了作者以往的研究,为其他跨学科和跨学科的研究开辟了道路。它的主要局限性(罗马尼亚谚语)为进一步研究提供了可能的方向。
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引用次数: 1
Agent-based modeling and simulation in the research of environmental sustainability. A bibliography 环境可持续性研究中基于Agent的建模与仿真。参考书目
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151015
I. Susnea, Emilia Pecheanu, A. Cocu
In the context of the alarming news about climate changes, resource depletion, ecological disasters, and demographic trends, the interest of the researchers and the scientific literature on topics related to sustainability grew exponentially in the past two decades. In 2020 only, the number of publications indexed in the Web of Science (WoS) having the keywords “sustainability” or “sustainable development” in the topic was higher than 42,000. Facing this flood of literature, the present work aims to ease the effort of locating relevant studies about the applications of Agent-based Modeling and Simulation (ABMS) in the research of environmental sustainability. This goal is accomplished by: (a) providing a comprehensive bibliography of recent relevant articles on this topic, (b) identifying the most popular domains of application of ABMS in this field, and (c) building a list of the available simulation tools. We found that most of the selected studies (52%) are designed for management related acticities (decision support, policy making etc.), the application domain addressed by the largest number of articles (27%) is agriculture and related activities (pastoralism, hunting, fishery, and forestry), and the most popular simulation platform is NetLogo (15%).
在气候变化、资源枯竭、生态灾害和人口趋势等令人担忧的新闻背景下,研究人员和科学文献对可持续发展相关主题的兴趣在过去二十年中呈指数级增长。仅在2020年,在Web of Science (WoS)中索引的主题中包含“可持续性”或“可持续发展”关键字的出版物数量就超过4.2万篇。面对大量的文献,本研究旨在简化基于agent的建模与仿真(ABMS)在环境可持续性研究中应用的相关研究。这一目标是通过以下方式实现的:(a)提供关于该主题的最新相关文章的综合参考书目,(b)确定该领域中最流行的ABMS应用领域,以及(c)建立可用仿真工具的列表。我们发现,大多数选定的研究(52%)是为管理相关活动(决策支持,政策制定等)设计的,最多的文章(27%)涉及的应用领域是农业和相关活动(畜牧业,狩猎,渔业和林业),最流行的模拟平台是NetLogo(15%)。
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引用次数: 2
Comparison of the performance of a domestic solar water heater in different climates in Algeria 阿尔及利亚不同气候条件下家用太阳能热水器的性能比较
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151011
T. Baki
A simulation with TRNSYS of an individual solar water heater for the hot water needs of an average family in Algeria was made; three cities of different climates were chosen to the north on the coast, in the highlands and in a desert region, the solar water heater consists of a flat panel of 4m² and a storage tank of 300 liters, a back-up electrical energy is activated when solar radiations are insufficient or during the night, the consumption of domestic hot water leaving the tank at 60 °C follows a typical profile, the results show significant performance in the south and similar data in the north and in the highlands.
针对阿尔及利亚普通家庭的热水需求,用TRNSYS对单个太阳能热水器进行了模拟;选择了三个不同气候的城市,分别位于北部海岸、高地和沙漠地区,太阳能热水器由一块4平方米的平板和一个300升的储水箱组成,当太阳辐射不足或在夜间时,备用电能会被激活,在60°C下离开储水箱的生活热水消耗量遵循典型曲线,结果显示,南部的表现显著,北部和高地的数据相似。
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引用次数: 1
Research on the infiltrations in an earth dam. Case study: Cuibul Vulturilor Reservoir, Vaslui County, Romania 土坝的入渗问题研究。案例研究:罗马尼亚Vaslui县Cuibul Vulturilor水库
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151016
Ioanichie Bălan, H. Hogas, L. Crenganis, I. Balan, F. Corduneanu, D. Țopa
The dam of the reservoir Cuibul Vulturilor, located on the Tutova river is an inhomogeneous earth dam with a maximum height of 15.0 m, with a clayey central core and lateral prisms made of clayey-dusty sands. For tracking the evolution of body dam seepage, 12 piezometers and a drainage pipe with discharge in the downstream connection channel of the bottom outlet are used. The paper presents the characteristic elements of the theoretical infiltration curve in the dam It also shows the hydro isohypses for the dam drawn with SURFER program, using the maximum hydrostatic levels in the piezometers measured in the year 2019. The distribution of the hydro isohypses across the dam is strongly influenced by the location of the piezometers and the other point of measuring the hydraulic head. The pattern circulation of the infiltration water inside the dam body could be studied with increased accuracy, if the dam had been equipped with several piezometers. Even in these conditions, it is clearly observed that the regime of infiltrations through the dam body is similar to the theoretical way of behavior.
Cuibul Vulturilor水库的大坝位于Tutova河上,是一座非均质土坝,最大高度为15.0 m,具有粘性中心心墙和由粘性尘土砂制成的侧向棱柱。为了跟踪坝体渗流的演变,使用了12个测压计和一根在底孔下游连接通道中排水的排水管。本文介绍了大坝理论渗透曲线的特征元素。还显示了使用SURFER程序绘制的大坝水力等值线,使用2019年测量的测压计中的最大静水水位。大坝上的水力等值线分布受到测压计位置和其他水头测量点的强烈影响。如果大坝配备了几个测压计,可以更精确地研究坝体内渗透水的模式循环。即使在这些条件下,也可以清楚地观察到,通过坝体的渗透状态与理论行为方式相似。
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引用次数: 0
The geostatistical analysis of the atmospheric precipitation in Europe on a West-East line transect 欧洲东西线样带大气降水的地统计学分析
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151006
Liliana Sîrghea
The general warming trend of the planet cannot be denied (the average global air temperature has increased by approx. 0.85°C between 1880-2012 (IPCC, 2013). The direct consequence of this warming is an increase in extreme weather events and hence in climate risks. The monitoring and assessing precipitation, identifying the physical laws governing its course in order to be able to estimate and forecast it in the future is therefore of great interest nowadays. Using geostatistical spatial analysis methods, this paper aims at identifying the correlations between longitude and precipitation (due to the specificity of the European climate, given by the major influence of the western circulation) and then an estimation - using linear regression equations - of precipitation amounts depending on longitude. Two variables were calculated for the statistical analysis: the proportion of the mean number of days with precipitation ≥ 10 mm of the multiannual mean of precipitation days (≥0,1 mm) and the precipitation ratio between the mean precipitation quantities in summer, compared to those in winter (hereinafter referred to as summer/winter precipitation ratio). The geostatistical analysis carried out on a sample of 40 weather stations aligned from west-south-west to east-north-east argues the existence of a strong correlation between longitude and the multiannual mean of days with precipitation ≥10 mm and between longitude and the summer/winter precipitation ratio.
地球总体变暖的趋势是不可否认的(全球平均气温上升了大约10%)。1880-2012年期间0.85°C (IPCC, 2013)。这种变暖的直接后果是极端天气事件的增加,从而增加了气候风险。因此,监测和评估降水,确定控制其过程的物理规律,以便能够对未来的降水进行估计和预报,是当今人们非常感兴趣的。利用地统计空间分析方法,本文旨在确定经度和降水之间的相关性(由于欧洲气候的特殊性,主要受西方环流的影响),然后利用线性回归方程估计经度的降水量。统计分析计算两个变量:平均降水量≥10 mm的日数占多年平均降水量日数(≥0.1 mm)的比例,以及夏季平均降水量与冬季平均降水量之比(以下简称夏/冬降水量比)。对从西南偏西到东北偏东的40个气象站样本进行的地质统计学分析表明,经度与降水≥10 mm的多年平均日数以及经度与夏季/冬季降水比之间存在很强的相关性。
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引用次数: 0
Spatial and temporal real-time ambient Carbon Monoxide ward–wise mapping for BENGALURU City 空间和时间实时环境一氧化碳朝前映射班加罗尔市
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151002
R. Gopinath, G. M. M. Krishna, Pratik kumar Sinha, Nitish Kumar, D. Tripathi
Longevity in life span of city dwellers depends upon the quality of ambient air, which is often compromised due to urbanization. In this context, since independence, Bengaluru has rampantly grown with elevated air and automobile pollution levels. Ambient Carbon Monoxide [CO], which is considered to be the most dangerous criteria air pollutant, however has insufficient research/literature for the city of Bengaluru. To plug this gap, the pre-sent study engages a detailed examination for Temporal and Spatial Map-ping variation of Ambient ‘CO’ concentration in different wards of Bengaluru using calibrated Digital ‘CO’ sensor. The methodology involved primarily an intensive literature review followed by reconnaissance survey for fixation of monitoring stations about each ‘ward’. Further at these observatories, extensive primary data collection was ensued at periodic and regular intervals. The objective serves to delineate the most critical and non-critical places in Bengaluru to incorporate remedial measures. Startling 400+ violations with potential of triggering congestive heart failure, impaired performance in time discrimination, shortened time to angina response and vigilance decrement were observed. Sustainability measures conclude the study.
城市居民的寿命取决于环境空气质量,而城市化往往会影响环境空气质量。在这种背景下,自独立以来,班加罗尔在空气和汽车污染水平上升的情况下蓬勃发展。环境一氧化碳(CO)被认为是最危险的空气污染物标准,但对班加罗尔市的研究/文献不足。为了填补这一空白,预先发送的研究使用校准的数字“CO”传感器对班加罗尔不同病房的环境“CO”浓度的时空图变化进行了详细检查。该方法主要包括深入的文献综述,然后是对每个“病房”的监测站进行固定的勘测调查。此外,在这些观测站,定期和有规律地进行了广泛的初级数据收集。该目标旨在划定班加罗尔最关键和非关键的地方,以纳入补救措施。观察到400多次突发事件可能引发充血性心力衰竭,时间辨别能力受损,心绞痛反应时间缩短,警惕性下降。可持续性措施总结了这项研究。
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引用次数: 0
Old Forests from Dobrogea’s Plateau 多布罗吉亚高原的古老森林
IF 0.7 Pub Date : 2021-06-30 DOI: 10.15551/pesd2021151013
E. Vechiu, L. Dincă, I. Breabăn
From the oldest times, the forest has been the main food, shelter and energy source, playing an essential role in the development of human societies. Old stands are characterized by their long life, large heights and diameters and by their help in conserving biodiversity. The surfaces occupied by old stands have decreased lately because of their wood mass high value which leads to exploitation. This is furthermore coupled with climate changes, urbanization and human influences. These stands occupy a surface of 128.500 ha in the forests from Dobrogea’s Plateau, where broad-leaved species are preponderant (Quercus sp., Fraxinus ornus, Tilia tomentosa, Acer sp.). As such, the present paper intends to characterize the oldest stands from Dobrogea’s Plateau with the help of forest management plans realized during 1993-2007. The main characteristics analyzed in this study for stands older than 120 years were: location, surface, height, diameter, structure, forest type, soil type, altitude, exposition, slope and consistency. Stand older than 100 years occupy only 4% of the total surface and are composed of linden, brown oak and pedunculate oak which grow and develop on common luvisols.
从最古老的时代起,森林就一直是主要的食物、住所和能源,在人类社会的发展中发挥着至关重要的作用。古老的林分具有寿命长、高度和直径大以及有助于保护生物多样性的特点。由于其木材质量价值高,导致开发,因此旧林分占用的面积最近有所减少。再加上气候变化、城市化和人类影响。在以阔叶树种(Quercus sp.,Fraxinus ornus,Tilia tomtotosa,Acer sp.)为主的多布格高原森林中,这些林分面积为128.500公顷。因此,本文打算借助1993-2007年实施的森林管理计划来确定多布格海台最古老的林分的特征。本研究分析了120年以上林分的主要特征:位置、表面、高度、直径、结构、森林类型、土壤类型、海拔、暴露、坡度和一致性。树龄超过100年的林分仅占总面积的4%,由菩提树、棕色橡树和带蒂橡树组成,它们在常见的羽扇豆上生长和发育。
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引用次数: 2
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Present Environment and Sustainable Development
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