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Engaging secondary school students in sustainability assessments through farm nutrient mass balances 通过农场养分质量平衡让中学生参与可持续性评估
Pub Date : 2024-05-13 DOI: 10.1002/nse2.20147
Agustin J. Olivo, O. F. Godber, Jeffrey Perry, M. Wattiaux, Q. Ketterings
Decision‐support tools (DSTs) are increasingly used to collect, manage, and/or analyze growing amounts of data generated on farms. The whole‐farm nutrient mass balance (NMB) is an assessment with an associated DST (the Cornell NMB calculator) that measures farm nutrient management efficiency. Our main objectives were to (1) develop and implement a secondary school curriculum on NMB assessments; (2) evaluate its impact on student knowledge and perceptions of agricultural sustainability, nutrient management, careers in agriculture, awareness about data collection and use of DSTs, and analytical and quantitative skills; and (3) assess teacher experiences delivering the materials. The curriculum was implemented across 21 New York classrooms. Students completed one pre‐ and one post‐curriculum implementation questionnaire (n = 134). Teachers completed a post‐curriculum implementation questionnaire (n = 19). Results showed that the curriculum enhanced student knowledge of nutrient management and effectively conveyed the fundamentals of the NMB metrics. It also impacted student perceptions of the utilization of DSTs and need for mathematical skills and data management knowledge in agriculture. The curriculum did not influence student interest in pursuing agricultural careers but exposed them to aspects of farming that they were not previously familiar with. The math‐focused lessons were identified as challenging by many students and teachers. Teachers found the curriculum applicable to the real world, exposing students to new aspects of farming. We conclude that real‐world case‐study examples, carefully planned math‐focused lessons, appropriate support materials including widely installable and user‐friendly software, and training opportunities for teachers can help effective teaching of DST use and agriculture sustainability concepts.
决策支持工具 (DST) 越来越多地用于收集、管理和/或分析农场产生的越来越多的数据。全农场养分质量平衡(NMB)是一种评估,与相关的 DST(康奈尔 NMB 计算器)一起用于衡量农场养分管理效率。我们的主要目标是:(1) 开发并实施有关 NMB 评估的中学课程;(2) 评估该课程对学生在农业可持续发展、养分管理、农业职业、数据收集和使用 DST 的意识以及分析和定量技能方面的知识和看法的影响;(3) 评估教师交付教材的经验。该课程在纽约 21 个教室实施。学生填写了课程实施前和课程实施后调查问卷各一份(n = 134)。教师完成了课程实施后的问卷调查(n = 19)。结果表明,该课程增强了学生的营养管理知识,并有效传达了营养管理指标的基本原理。该课程还影响了学生对使用 DST 的看法,以及对数学技能和农业数据管理知识的需求。该课程没有影响学生对从事农业职业的兴趣,但让他们接触到了以前不熟悉的农业方面的知识。许多学生和教师都认为以数学为重点的课程具有挑战性。教师认为课程适用于现实世界,让学生接触到农业的新方面。我们的结论是,真实世界的案例研究、精心策划的以数学为重点的课程、适当的辅助材料(包括可广泛安装且用户友好的软件)以及为教师提供的培训机会,都有助于有效教授 DST 的使用和农业可持续发展概念。
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引用次数: 0
Do demographic factors impact plant knowledge and plant awareness disparity? 人口因素是否会影响植物知识和植物认知的差异?
Pub Date : 2024-05-08 DOI: 10.1002/nse2.20146
Sarah Linderwell, Christina L. M. Hargiss, J. Norland
Since 1999, plant blindness, now known as plant awareness disparity (PAD), has gained great awareness. However, no study to date has explored the impact of multiple demographic factors, including those of an indigenous population, in understanding plant knowledge. Specifically, this study assessed how race, gender, rurality, and college type of general biology students influenced their self‐perceived plant knowledge and where that knowledge was learned. A total of 702 students across six different colleges, including three tribal and three non‐tribal colleges, completed the survey. The survey included demographic questions, five‐point Likert questions, and choose all that apply questions to assess students’ confidence in their plant knowledge, plant identification skills, where they learned that plant knowledge, and from whom they learned it. College type (tribal vs. non‐tribal) and race (American Indian/Alaskan Native vs. White) showed little differences across most analyses. However, rurality (rural vs. urban) and gender (male vs. female) were often significantly different (p ≤ 0.05). Similar findings were reflected in confidence in identifying specific plant categories. In most cases, participants disagreed when answering that they were confident in identifying categories of plants, with the only exception being gardening. The types of plants participants knew the most about were food, herbs, and foraging plants, which corresponded with gardening and foraging being the activities that taught them most about plants. Parent(s)/guardian(s) were the most important source of plant knowledge followed by school. The information in this study can aid educators, resource managers, and researchers in improving education, curriculum, and PAD.
自 1999 年以来,植物盲症(现称为植物认知差异 (PAD))得到了广泛关注。然而,迄今为止,还没有研究探讨过多种人口因素(包括土著人口因素)对理解植物知识的影响。具体来说,本研究评估了普通生物学学生的种族、性别、乡村和大学类型如何影响他们对植物知识的自我认知,以及这些知识是在哪里学到的。共有六所不同学院(包括三所部落学院和三所非部落学院)的 702 名学生完成了调查。调查包括人口统计学问题、五点李克特问题和选择所有适用问题,以评估学生对其植物知识的信心、植物识别技能、植物知识的学习地点和学习对象。在大多数分析中,学院类型(部落与非部落)和种族(美国印第安人/阿拉斯加原住民与白人)几乎没有差异。然而,农村(农村与城市)和性别(男性与女性)往往有显著差异(p ≤ 0.05)。类似的结果也反映在对识别特定植物类别的信心上。在大多数情况下,参与者在回答他们有信心识别植物类别时都表示不同意,唯一的例外是园艺。参与者最了解的植物种类是食用植物、草本植物和觅食植物,这与园艺和觅食是让他 们了解植物最多的活动相吻合。父母/监护人是最重要的植物知识来源,其次是学校。本研究的信息可帮助教育工作者、资源管理人员和研究人员改进教育、课程和 PAD。
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引用次数: 0
Cost effective and efficient technique for removing per‐ and polyfluoroalkyl substances in water 去除水中全氟和多氟烷基物质的经济高效技术
Pub Date : 2024-02-28 DOI: 10.1002/nse2.20137
Steven Mai
Per‐ and polyfluoroalkyl substances (PFAS) are synthetic chemicals, which can leak into the surrounding environment, such as water and soil, from water‐resistant manufactured products where they remain highly persistent due to their strong chemical bonds. PFAS have been found in human blood and can cause thyroid disease, increased cholesterol levels, liver damage, kidney cancer, and testicular cancer in humans. The goal of this study is to test the effectiveness of sorption and degradation removal methods on PFAS. The sorption method involves the use of biochar. Biochar can hold the PFAS in a concentrated area through electrostatic and hydrophobic properties. The degradation method involves using powerful ultraviolet (UV) light, in which free radicals will be produced and help break down PFAS molecules into simpler ones such as carbon and fluorine. The sorption experiment tested various modified corn biochar and the effect on perfluorobutanesulfonic acid (PFBS). It was found that biochar did have a positive removal effect on PFBS, and the biochar with the most modifications had the highest removal rate. The degradation experiment tested the effect of UV light and other modifications on PFBS. It was found that UV light did have a positive removal effect on PFBS, and the UV light combined with other modifications had a higher removal effect.
全氟烷基和多氟烷基物质(PFAS)是一种合成化学物质,可从防水制成品中渗漏到水和土壤等周围环境中,由于其化学键很强,因此具有很强的持久性。在人体血液中发现的 PFAS 可导致甲状腺疾病、胆固醇水平升高、肝损伤、肾癌和睾丸癌。这项研究的目的是测试吸附和降解去除方法对 PFAS 的有效性。吸附法包括使用生物炭。生物炭可以通过静电和疏水特性将 PFAS 包裹在一个集中区域内。降解方法包括使用强力紫外线(UV),在紫外线照射下会产生自由基,有助于将 PFAS 分子分解为碳和氟等更简单的分子。吸附实验测试了各种改性玉米生物炭及其对全氟丁烷磺酸(PFBS)的影响。结果发现,生物炭确实对全氟丁烷磺酸有积极的去除效果,而且改性最多的生物炭去除率最高。降解实验测试了紫外线和其他改性对 PFBS 的影响。结果发现,紫外光对 PFBS 确实有积极的去除效果,紫外光与其他改性物结合的去除效果更高。
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引用次数: 0
Unearthing green potential: Assessing the state of managed urban landscape curricula in Minnesota's higher education institutions 发掘绿色潜力:明尼苏达州高等教育机构城市景观管理课程现状评估
Pub Date : 2024-02-27 DOI: 10.1002/nse2.20139
Michael R. Barnes, Ileana A. Campagna, Becky Haddad, Eric Watkins
As urbanization increases, managed urban landscapes are frequently the mode through which people experience nature and where careers in natural resources are increasing. There is a lack of knowledge related to curricula and programs where students are exposed to managed urban landscapes and careers related to them. We aimed to evaluate the current status of managed urban landscape curricula (MULC) in undergraduate programs in Minnesota through a systematic investigation of programs and courses at higher education institutions. All undergraduate courses offered by included higher education institutions were reviewed to determine the presence, absence, or possibility of MULC based on the course's publicly available descriptions and were combined with departmental and institutional characteristics to identify patterns of MULC across the state. Only about 1% of over 50,000 courses reviewed contain MULC. Courses with MULC were concentrated in public doctoral‐level institutions and in departments such as biology and environmental studies, however MULC courses were found at 94% of included institutions and across 60 different departments. While the number of courses with MULC was minimal, courses with the possibility of including MULC show there are ample opportunities for MULC to be added to existing courses, especially core requirements such as introductory biology or a survey of environmental science in the state of Minnesota and more broadly.
随着城市化进程的加快,有管理的城市景观经常成为人们体验自然的方式,自然资源领域的职业也在不断增加。在学生接触城市管理景观及相关职业的课程和计划方面缺乏相关知识。我们旨在通过对高等教育机构的计划和课程进行系统调查,评估明尼苏达州本科课程中城市景观管理课程(MULC)的现状。我们对所包括的高等教育机构提供的所有本科课程进行了审查,以根据课程的公开说明确定是否存在、缺乏或可能存在城市景观管理课程,并结合系部和机构的特点来确定全州的城市景观管理课程模式。在审查的 50,000 多门课程中,只有约 1% 包含 MULC。含有 MULC 的课程主要集中在公立博士级院校和生物与环境研究等院系,但在 94% 的院校和 60 个不同院系中都有 MULC 课程。虽然包含 MULC 的课程数量极少,但有可能包含 MULC 的课程表明,有大量机会将 MULC 添加到现有课程中,尤其是核心要求课程,如生物学入门或明尼苏达州乃至更广泛范围内的环境科学调查。
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引用次数: 0
Promoting culturally conscious students: a course model in maple syrup management and culture 提高学生的文化意识:枫糖浆管理与文化课程模式
Pub Date : 2023-11-22 DOI: 10.1002/nse2.20134
T. Bal
The teaching strategy of blended learning (incorporating both online and experiential education) was used to design a university course covering multiple aspects of maple syrup and sugar history, ecology, management, production, and consumption to attract students. A key aspect of the course is to introduce students with little‐to‐no previous experience of traditional practices, indigenous knowledge, or ways of knowing that are different from western academia, with the intent of building more cultural literacy and acknowledgements of diverse perspectives. The goal in developing course content was to explore the integrated fields that contribute knowledge related to maple syruping and sugaring activities, making it “something for everyone” to increase applicability for students of all levels and experiences, as well as increasing student enrollment and engagement. Student feedback and assessment from the course indicates increased understanding within core areas covered, as well as a strong partiality for content on cultural significance. Survey results of class outcomes demonstrate a successful approach, in addition to increasing enrollment of students from across campus. The course model may work well for other natural science topics, especially those that may attract students eager to learn and experience local foods or artisanal materials from natural systems. An overview of course content is provided along with examples of how the course could be adapted for other topics or regions of interest to further similar unit goals for developing more culturally literate students.This article is protected by copyright. All rights reserved
为了吸引学生,我们采用了混合式学习(结合在线教育和体验教育)的教学策略,设计了一门大学课程,涵盖了枫糖浆和蔗糖的历史、生态、管理、生产和消费等多个方面。该课程的一个重要方面是向学生介绍与西方学术界不同的传统习俗、土著知识或认知方式,让他们了解更多的文化素养和对不同观点的认可。开发课程内容的目标是探索与枫糖浆制作和制糖活动相关知识的综合领域,使其 "适合所有人",以增加对不同水平和经验的学生的适用性,并提高学生的入学率和参与度。学生对该课程的反馈和评估表明,他们对课程所涵盖的核心领域的理解有所加深,并对有关文化意义的内容产生了浓厚的兴趣。对课堂成果的调查结果表明,这种方法是成功的,此外还提高了整个校园的学生入学率。这种课程模式可能对其他自然科学课题很有帮助,尤其是那些可能吸引学生渴望学习和体验来自自然系统的当地食物或手工材料的课题。本文对课程内容进行了概述,并举例说明了如何将该课程调整到其他主题或感兴趣的地区,以推进类似的单元目标,培养更多具有文化素养的学生。本文受版权保护。
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引用次数: 0
Erratum to “Environmental Education at the Special School: Opinions of Special Education Teachers” 特殊学校的环境教育:特殊教育教师的观点"
Pub Date : 2023-11-16 DOI: 10.1002/nse2.20128
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引用次数: 0
Understanding the Impacts of Intensive Student Internships at a Campus Agricultural Project 了解在校园农业项目中强化学生实习的影响
Pub Date : 2023-09-01 DOI: 10.1002/nse2.20126
JoHannah H. Biang, Shannon O. Brooks, Cecilia M. Herles, Abigail S. Borron, David C. Berle, Jennifer Jo Thompson
Campus agricultural projects (CAPs) are campus farms or gardens where students learn to grow food. With at least 286 CAPs at institutions of higher education across the United States, this study seeks to understand the impact that participation in intensive internships at CAPs has on students and how student experiences align with the missions of CAPs. We used mixed ethnographic methods to collect rich, longitudinal data with 23 students enrolled in semester‐long internships at one particular CAP over the course of three semesters. Drawing on thematic analysis, we identify themes that capture what students are learning and experiencing in these spaces. Results from this study demonstrate that students participating in these internships not only gain agricultural and horticultural skills from hands‐on learning, but also gain interpersonal skills (i.e., teamwork, communication) and practical skills (i.e., changing a tire). Over the course of the semester, we see students gain confidence from these skills, and develop self‐efficacy in their ability to face challenges and tackle new tasks in the future. Notably, students also develop a strong sense of community within these spaces. Finally, although students express a lingering disconnect between their work and its specific contribution to the community, we find that students can gain insights into service and community engagement in a service‐learning focused CAP.This article is protected by copyright. All rights reserved
校园农业项目(CAPs)是学生学习种植食物的校园农场或花园。在美国各地的高等教育机构中,至少有286个cap,本研究旨在了解参与cap的密集实习对学生的影响,以及学生的经历如何与cap的使命相一致。我们使用混合人种学方法收集了23名学生的丰富的纵向数据,这些学生在一个特定的CAP进行了为期三个学期的实习。通过主题分析,我们确定了能够捕捉学生在这些空间中学习和体验的主题。本研究的结果表明,参加这些实习的学生不仅从实际学习中获得了农业和园艺技能,而且还获得了人际交往能力(如团队合作、沟通)和实践技能(如换轮胎)。在本学期的课程中,我们看到学生们从这些技能中获得了信心,并在未来面对挑战和应对新任务的能力上发展了自我效能感。值得注意的是,学生们也在这些空间中形成了强烈的社区意识。最后,尽管学生们表示他们的工作与其对社区的具体贡献之间存在着挥之不去的脱节,但我们发现学生可以在以服务学习为重点的cap中获得服务和社区参与的见解。版权所有
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引用次数: 0
Structuring group work to provide a more positive student learning experience 组织小组工作,为学生提供更积极的学习体验
Pub Date : 2023-08-22 DOI: 10.1002/nse2.20124
M. Boerngen, J. Rickard
Group projects enable students to build valuable critical thinking and communication skills that are increasingly required for success in the agricultural industry. Group projects provide well documented benefits, however, associated challenges lead to student and instructor reluctance to engage in group work in the college classroom. Well‐structured group projects may allow greater focus on achieving learning objectives, and less on conflict management. Therefore, this study examines how group project structure may affect students’ learning experiences and perception of group work. Students enrolled in a senior‐level agribusiness management course complete a semester‐long group project, working in instructor‐assigned groups, to design a business plan for an agri‐food industry start‐up company. It is structured to encourage teamwork and soft skill development, and to discourage social loafing. Questionnaires administered prior to, halfway through, and at the end of the project during seven face‐to‐face semesters preceding the COVID remote learning period identify students’ prior group project experiences, evaluate their groups’ progress, and measure their perception of the project's structural elements upon completion. Responses indicated 98% of students agreed that scaffolding the project into smaller components increased group success, 96% agreed that they clearly understood professor expectations, and 85% reported that this project provided more structure than they previously experienced in other group projects in college. A paired‐samples t‐test found a significantly positive increase in students’ mean opinion about group projects upon the completion of this project (p<0.001). This study suggests structural elements that can provide students with a more positive learning experience through group work.This article is protected by copyright. All rights reserved
小组项目使学生能够建立宝贵的批判性思维和沟通技巧,这是在农业行业取得成功越来越需要的。小组项目提供了充分证明的好处,然而,相关的挑战导致学生和教师不愿意参与大学课堂上的小组工作。结构良好的小组项目可以更多地关注学习目标的实现,而不是冲突管理。因此,本研究旨在探讨小组项目结构如何影响学生的学习体验和对小组工作的认知。参加高级农业企业管理课程的学生将完成一个学期的小组项目,在导师分配的小组中工作,为一家农业食品工业初创公司设计商业计划。它的结构是为了鼓励团队合作和软技能的发展,并阻止社会游手好闲。在COVID远程学习之前的七个面对面学期中,在项目之前、中途和结束时进行问卷调查,确定学生之前的小组项目经历,评估他们的小组进展,并在项目完成后测量他们对项目结构要素的看法。调查结果显示,98%的学生认为将项目分成更小的部分可以提高小组的成功率,96%的学生认为他们清楚地理解了教授的期望,85%的学生认为这个项目比他们以前在大学里的其他小组项目提供了更多的结构。配对样本t检验发现,在完成该项目后,学生对小组项目的平均意见显著增加(p<0.001)。本研究提出结构元素可以提供学生更积极的学习经验,通过小组学习。这篇文章受版权保护。版权所有
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引用次数: 0
Soil Judging e‐Contest: The virtual experience expanding the soil learning process 土壤评判竞赛:扩展土壤学习过程的虚拟体验
Pub Date : 2023-08-22 DOI: 10.1002/nse2.20125
F. A. Pedron, J. Galbraith, B. Scharenbroch, M. G. Pereira, Ademir Fontana
Soil judging contests are important activities to explore the soil science and its relation to the natural world. They have been held for many years and proved to be very efficient for the student's engagement, field practice and learning. During the COVID‐19 pandemic the soil science societies world‐wide had to adapted this activity to the virtual environment. The objective of this article is to document two experiences tested in Brazil and in the United States of America, exploring its potential as an innovative and widely available educational method for teaching soil science. The procedures developed in both countries are presented and the students perceptions indicated that the virtual events are a viable way to hold the soil judging contest, contributing to their academic skills. The Brazilian and United States experiences are viable models that can serve as a basis for other countries adopting this activity in their pedagogical planning and academic calendar.This article is protected by copyright. All rights reserved
土壤评比比赛是探索土壤科学及其与自然世界关系的重要活动。他们已经举办了多年,并被证明对学生的参与,实地实践和学习非常有效。在2019冠状病毒病大流行期间,世界各地的土壤科学学会不得不使这项活动适应虚拟环境。本文的目的是记录在巴西和美国测试的两种经验,探索其作为一种创新和广泛可用的土壤学教学方法的潜力。介绍了两国制定的程序,学生们的看法表明,虚拟活动是举办土壤评判比赛的可行方式,有助于提高他们的学术技能。巴西和美国的经验是可行的模式,可以作为其他国家在其教学规划和学术日程中采用这种活动的基础。这篇文章受版权保护。版权所有
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引用次数: 1
Using Survey Results to Direct Future Extension Efforts in Annual Bluegrass Management 利用调查结果指导蓝草年度管理的未来推广工作
Pub Date : 2023-08-01 DOI: 10.1002/nse2.20123
A. Kowalewski, C. Mattox, J. Brosnan, J. Kaminski, A. Patton, J. McCurdy, R. Bowling, T. Gannon, S. Askew, J. S. McElroy, J. Unruh, M. Elmore, D. E. Carroll, E. D. De Castro
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引用次数: 0
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Natural Sciences Education
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