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Correction: Biocultural mapping: unpacking the myth of an unsuitable Country in the arid zone, Willandra Lakes Region World Heritage Area, Australia 更正:生物文化地图:揭开澳大利亚威兰德拉湖地区世界遗产区干旱地带不适宜居住国家的神秘面纱
Pub Date : 2024-05-29 DOI: 10.1186/s40068-024-00349-4
Katherine Thomas

Correction: Environmental Systems Research (2023) 12:23 https://doi.org/10.1186/s40068-023-00309-4


In this article (Thomas 2023), there has been an omission in the acknowledgements of an Elder (Joan Slade) of the communities and a word space was missing for the following two terms (occupied Country and active Country).


The revised acknowledgement is given below:

The Indigenous Cultural and Intellectual Property (ICIP) within this project was developed through ongoing consultation with the Aboriginal Advisory Group (AAG) of the Willandra Lakes Region World Heritage Area (WLRWHA). ICIP protocols from the AAG governed the project development, approvals, and delivery of any published material. A deep gratitude to owed to the Paakantji (Barkindji), Mutthi Mutthi, and Ngyiampaa communities for sharing oral testimonies, enabling research on their homelands, and supporting our work. Further acknowledgements are to NSW Parks staff and individual community members (past and present): Jo McDonald, Harvey Johnson, Dan Rosendahl, Daryl Pappin, Leanne Mitchell, Tanya Charles, Ernie Mitchell, Ernest Mitchell, Ivan Johnson, Roy Kennedy, Rob Kelly, Kenny Clark, Maureen Taylor, Dawn Smith, Jean Charles, Mary Pappin, Bernadette Pappin, Patsy Winch, Coral Ellis, Joan Slade, and Lottie Williams. Specific acknowledgements also are given to Jeannette Hope, Rudy Frank, Wakefield family, Elizabeth Foley, Brian Armstrong, Lana Tranter-Edwards, Caroline Bandurski, David Crotty, Caroline Spry, Rebekah Kurpiel, Jacqui Tumney, Nathan Jankowski, John Miller, and Nicola Barnes for their help with the development of this project, either through fieldwork or discussions. The research within this article was supported by the La Trobe Internal Research Grant Scheme (IRGS), La Trobe Transforming Human Societies’ PhD scholarship, APA PhD scholarship, and funding from the overarching Mungo Archaeology Project (MAP), headed by Chief Investigator Associate Professor Nicola Stern (ARC-Linkage Project (LP0775058), Environmental Evolution of the Willandra Lakes World Heritage Area, 2007–2009; ARC Discovery Project (DP1092966), Human Responses to Long Term Landscape and Climate Change, 2010–2014). Substantive discussions were also had with my supervisors and acknowledgements must go to my primary supervisors—Assoc. Prof Nicola Stern and Dr Mal Ridges—and secondary supervisor: Dr Matt Meredith-Williams.

  • Thomas K (2023) Biocultural mapping: unpacking the myth of an unsuitable Country in the arid zone, Willandra Lakes Region World Heritage Area, Australia. Environ Syst Res 12:23. https://doi.org/10.1186/s40068-023-00309-4

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更正:Environmental Systems Research (2023) 12:23 https://doi.org/10.1186/s40068-023-00309-4In 这篇文章(Thomas 2023)的致谢中遗漏了社区的一位长老(Joan Slade),以下两个术语(被占领的国家和活跃的国家)也少了一个空格。修订后的致谢如下:本项目中的土著文化和知识产权(ICIP)是通过与威兰德拉湖区世界遗产区(WLRWHA)的土著顾问组(AAG)不断协商制定的。原住民咨询小组的 ICIP 协议对项目开发、审批和任何出版材料的交付进行了规范。衷心感谢 Paakantji (Barkindji)、Mutthi Mutthi 和 Ngyiampaa 社区分享口述证词,允许在他们的家园进行研究,并支持我们的工作。此外,我们还要感谢新南威尔士州公园工作人员和个别社区成员(过去和现在):Jo McDonald、Harvey Johnson、Dan Rosendahl、Daryl Pappin、Leanne Mitchell、Tanya Charles、Ernie Mitchell、Ernest Mitchell、Ivan Johnson、Roy Kennedy、Rob Kelly、Kenny Clark、Maureen Taylor、Dawn Smith、Jean Charles、Mary Pappin、Bernadette Pappin、Patsy Winch、Coral Ellis、Joan Slade 和 Lottie Williams。本文中的研究得到了拉筹伯内部研究补助金计划(IRGS)、拉筹伯改造人类社会博士奖学金、APA博士奖学金以及由首席研究员尼古拉-斯特恩副教授领导的蒙哥考古项目(MAP)的资助(ARC-Linkage项目(LP0775058),威兰德拉湖世界遗产区的环境演变,2007-2009年;ARC 发现项目(DP1092966),人类对长期景观和气候变化的反应,2010-2014 年)。我还与我的导师进行了实质性的讨论,在此必须向我的主要导师--Nicola Stern 副教授和 Mal Ridges 博士--以及次要导师表示感谢:Thomas K (2023) Biocultural mapping: unpacking the myth of an unsuitable Country in the arid zone, Willandra Lakes Region World Heritage Area, Australia.Environ Syst Res 12:23. https://doi.org/10.1186/s40068-023-00309-4Article Google Scholar Download references作者和工作单位墨尔本大学工程与信息技术学院荣誉研究员,墨尔本 Connect, 700 Swanston St、Carlton, Melbourne, AustraliaKatherine ThomasAdjunct Research Fellow, Department of Archaeology and History, La Trobe University, Melbourne, AustraliaKatherine ThomasAuthorsKatherine ThomasView author publications您也可以在 PubMed Google ScholarCorresponding authorCorrespondence to Katherine Thomas.Publisher's NoteSpringer Nature 对出版地图中的管辖权主张和机构隶属关系保持中立。开放获取 本文采用知识共享署名 4.0 国际许可协议进行许可,该协议允许以任何媒介或格式使用、共享、改编、分发和复制,只要您适当注明原作者和来源,提供知识共享许可协议的链接,并说明是否进行了修改。本文中的图片或其他第三方材料均包含在文章的知识共享许可协议中,除非在材料的署名栏中另有说明。如果材料未包含在文章的知识共享许可协议中,且您打算使用的材料不符合法律规定或超出许可使用范围,您需要直接从版权所有者处获得许可。要查看该许可的副本,请访问 http://creativecommons.org/licenses/by/4.0/.Reprints and permissionsCite this articleThomas, K. Correction:生物文化绘图:揭开澳大利亚威兰德拉湖区世界遗产区干旱地带不适宜国家的神话。Environ Syst Res 13, 19 (2024). https://doi.org/10.1186/s40068-024-00349-4Download citationAccepted: 21 May 2024Published: 29 May 2024DOI: https://doi.org/10.1186/s40068-024-00349-4Share this articleAnyone you share the following link with will be able to read this content:Get shareable linkSorry, a shareable link is not currently available for this article.Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative.
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引用次数: 0
Occurrence and inhalation health risk of neonicotinoid pesticides in outdoor air particulate matters from 2019 to 2021 in China 2019-2021年中国室外空气颗粒物中新烟碱类农药的发生率和吸入健康风险
Pub Date : 2024-05-28 DOI: 10.1186/s40068-024-00342-x
Hairong Du, Xiaoling Zhu, Yunying Yao, Wei Yao
Neonicotinoid insecticides (NNIs), as a new type of insecticide, are widely used in agriculture and daily life. Because of the low volatility of NNIs, few studies have evaluated them in atmospheric particulate matter. In this study, 101 outdoor PM2.5 samples were collected from the Wuhan urban area from 2019 to 2021, leading to the detection of seven NNIs and three of their metabolites. The detection frequencies of all 10 substances were more than 60%, with DIN (dinotefuran) and IMI (imidacloprid) reaching 100%. DIN (52.4 pg/m3) and IMI (43.0 pg/m3) had higher median concentrations than other substances. Concentration distributions of the four substances ACE (acetamiprid), DIN, IMI, and 5-OH-IMI (5-Hydro-Imidacloprid) exhibited statistically significant differences (P < 0.05) across the four seasons. Concentration levels of ACE, CLO (clothianidin), and IMI were statistically different between the three years (P < 0.05). The median concentration of imidacloprid-equivalent total neonicotinoids (IMIeq: generated by the relative potency factor method) was 256.1 pg/m3. Finally, the estimated daily intake (EDI) of NNIs via respiration was greater in infants and young children than in the rest of the population, suggesting that infants and young children were more likely to be exposed to the health effects of airborne residual PM2.5.
新烟碱类杀虫剂(NNIs)作为一种新型杀虫剂,被广泛应用于农业和日常生活中。由于新烟碱类杀虫剂挥发性低,很少有研究对其在大气颗粒物中的含量进行评估。本研究从2019年至2021年在武汉市区采集了101个室外PM2.5样品,共检测到7种NNIs及其3种代谢物。10种物质的检出率均超过60%,其中DIN(二硝基呋喃)和IMI(吡虫啉)的检出率达到100%。DIN(52.4 皮克/立方米)和 IMI(43.0 皮克/立方米)的浓度中值高于其他物质。四种物质 ACE(啶虫脒)、DIN、IMI 和 5-OH-IMI(5-氢吡虫啉)的浓度分布在四个季节之间存在显著的统计学差异(P < 0.05)。ACE、CLO(噻虫嗪)和 IMI 的浓度水平在三年中存在统计学差异(P < 0.05)。吡虫啉等效的新烟碱类化合物总浓度(IMIeq:通过相对效力因子法得出)的中位数为 256.1 皮克/立方米。最后,婴幼儿通过呼吸摄入的新烟碱类物质的估计日摄入量(EDI)高于其他人群,这表明婴幼儿更有可能受到空气中残留 PM2.5 的健康影响。
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引用次数: 0
Analysis of urban sprawl dynamics using machine learning, CA-Markov chain, and the Shannon entropy model: a case study in Mbombela City, South Africa 利用机器学习、CA-马尔可夫链和香农熵模型分析城市无计划扩展动态:南非姆博贝拉市案例研究
Pub Date : 2024-05-27 DOI: 10.1186/s40068-024-00348-5
Paidamwoyo Mhangara, Eskinder Gidey, Rabia Manjoo
Over half of the world’s population resides in urban areas. We anticipate that this pattern will become more evident, notably in South Africa. Therefore, research on urban spirals, both past and projected, is necessary for efficient urban land use planning and management. This study aims to assess the spatio-temporal urban sprawl dynamics from 2003 to 2033 in Mbombela, South Africa. We employed robust approaches such as machine learning, the cellular automata-Markov chain, and the Shannon entropy model to look at how urban sprawl changes over time using both the Landsat 4–5 Thematic Mapper and the 8 Operational Land Imagers. We conducted this study to bridge the gaps in existing research, which primarily focuses on past and current urban growth trends rather than future trends. The findings indicated that the coverage of built-up areas and vegetation has expanded by 1.98 km2 and 13.23 km2 between the years 2003 and 2023. On the other hand, the amount of land continues to decrease by -12.56 km2 and − 2.65 km2 annually, respectively. We anticipate an increase in the built-up area and vegetation to a total of 7.60 km2 and 0.57 km2, respectively, by the year 2033. We anticipate a total annual decline of -7.78 km2 and − 0.39 km2 in water bodies and open land coverage, respectively. This work has the potential to assist planners and policymakers in improving sustainable urban land-use planning.
世界上一半以上的人口居住在城市地区。我们预计这种模式将变得更加明显,尤其是在南非。因此,为了有效地进行城市土地利用规划和管理,有必要对过去和预测的城市螺旋进行研究。本研究旨在评估南非姆博贝拉从 2003 年到 2033 年的时空城市扩张动态。我们采用了机器学习、蜂窝自动机-马尔可夫链和香农熵模型等稳健方法,利用大地遥感卫星 4-5 专题成像仪和 8 个实用土地成像仪研究城市无计划扩展如何随时间变化。现有研究主要关注过去和当前的城市增长趋势,而不是未来趋势,我们开展这项研究是为了弥补这些研究的不足。研究结果表明,从 2003 年到 2023 年,城市建成区和植被覆盖面积分别扩大了 1.98 平方公里和 13.23 平方公里。另一方面,土地面积每年分别减少-12.56 平方公里和-2.65 平方公里。我们预计到 2033 年,建筑面积和植被面积将分别增加到 7.60 平方公里和 0.57 平方公里。我们预计水体和空地覆盖面积每年将分别减少-7.78 平方公里和-0.39 平方公里。这项工作有望帮助规划者和决策者改善可持续的城市土地利用规划。
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引用次数: 0
Modeling the economic cost of congestion in Addis Ababa City, Ethiopia 模拟埃塞俄比亚亚的斯亚贝巴市交通拥堵的经济成本
Pub Date : 2024-05-19 DOI: 10.1186/s40068-024-00344-9
Semen Bekele Gunjo, D. Guta, Shimeles Damene
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引用次数: 0
Performance evaluation of varies climate models using observed and regional climate models for the Katar Watershed, Ethiopia 利用埃塞俄比亚卡塔尔流域的观测气候模型和区域气候模型对变量气候模型进行性能评估
Pub Date : 2024-05-11 DOI: 10.1186/s40068-024-00345-8
Babur Tesfaye Yersaw, Mulusew Bezabih Chane, Natnael Andualem Yitayew
Climate models are fundamental tools to estimates the reliable future climate change and its effects on the water resources and agriculture in basins. However, all climate models are not equally performed for all areas. Therefore, determining the most appropriate climate models for a specific study area is essential. The focus of this study was to evaluate the performance of the regional climate models with regard to simulating precipitation, and temperatures at Katar watershed. This study examines the performance of fourteen CORDEX-AFRICA-220 Regional Climate Models (RCMs) for the period of 1984–2005 using statistical metrics such as Pearson correlation coefficient (R), mean absolute error (MAE), root mean squared error (RMSE), and bias. The findings indicated that GERICS-MPI was better performed in representing Areta, and Bokoji station, GERICS-IPSL was better representing in Assela, Ketergenet, and Sagure station, CCCma-CanESM2-AFR22, and RCA4-ICHEC performed relatively better in representing the mean annual observed rainfall at the Kulumsa, and Ogolcho station respectively. However, RCA4-CSIRO performed weakly in estimation of annual rainfall at all stations. RCM model such as GERICS-MPI was relatively better than the others in replicating the annual pattern of the maximum temperature at Areta, Bokoji, and Ketergenet stations. Similarly, GERICS-IPSL were relatively better in replicating the annual maximum temperature at Assela, and Sagure stations, CCCma-CanESM2-AFR22 at Kulumsa station, and RCA4-ICHEC at Ogolcho station performed well in capturing the observed and simulated annual maximum temperature. Better performance was observed on minimum temperature at CCCma-CanESM2-AFR22 at Areta, Assela, and Ketergenet stations, GERICS-MOHE-AFR-22 at Bokoji station, GERICS-MPI at Kulumsa, and Ogolcho stations, RAC4-NOAA-2G at Sagure stations. However, weak performance was observed RCA4-CSIRO at all stations. RCM models of GERICS-MPI, and CCLM4-NCC-AFR-22 performed better than the other RCM models for correction of annual rainfall in Katar watershed. However, poor performance was observed at RCA4-ICHEC model on Katar watershed. The GERICS-MPI model performed well. However, poor performance was observed at RCA4-ICHEC on maximum temperature, and GERICS-NOAA-2M on minimum temperature in Katar watershed.
气候模型是估算可靠的未来气候变化及其对流域水资源和农业影响的基本工具。然而,并非所有气候模型都适用于所有地区。因此,为特定研究区域确定最合适的气候模型至关重要。本研究的重点是评估区域气候模式在模拟卡塔流域降水和温度方面的性能。本研究采用皮尔逊相关系数(R)、平均绝对误差(MAE)、均方根误差(RMSE)和偏差等统 计指标,对 1984-2005 年期间 14 个 CORDEX-AFRICA-220 区域气候模式(RCM)的性能进行了检验。研究结果表明,GERICS-MPI 在代表 Areta 和 Bokoji 站方面表现较好,GERICS-IPSL 在代表 Assela、Ketergenet 和 Sagure 站方面表现较好,CCCma-CanESM2-AFR22 和 RCA4-ICHEC 分别在代表 Kulumsa 和 Ogolcho 站的年平均观测降雨量方面表现相对较好。然而,RCA4-CSIRO 在估算所有站点的年降雨量方面表现较弱。在复制 Areta、Bokoji 和 Ketergenet 站的最高气温年度模式方面,GERICS-MPI 等 RCM 模型相对优于其他模型。同样,GERICS-IPSL 在复制 Assela 和 Sagure 站的年最高气温方面相对较好,Kulumsa 站的 CCCma-CanESM2-AFR22 和 Ogolcho 站的 RCA4-ICHEC 在捕捉观测和模拟的年最高气温方面表现良好。Areta 站、Assela 站和 Ketergenet 站的 CCCma-CanESM2-AFR22 和 Bokoji 站的 GERICS-MOHE-AFR-22、Kulumsa 站和 Ogolcho 站的 GERICS-MPI 以及 Sagure 站的 RAC4-NOAA-2G 在最低气温方面表现较好。不过,RCA4-CSIRO 在所有站点的表现都较弱。GERICS-MPI 和 CCLM4-NCC-AFR-22 的 RCM 模型在校正 Katar 流域年降雨量方面的表现优于其他 RCM 模型。但 RCA4-ICHEC 模型在卡塔流域的表现较差。GERICS-MPI 模型表现良好。然而,RCA4-ICHEC 模型在卡塔流域的最高气温方面表现不佳,GERICS-NOAA-2M 模型在卡塔流域的最低气温方面表现不佳。
{"title":"Performance evaluation of varies climate models using observed and regional climate models for the Katar Watershed, Ethiopia","authors":"Babur Tesfaye Yersaw, Mulusew Bezabih Chane, Natnael Andualem Yitayew","doi":"10.1186/s40068-024-00345-8","DOIUrl":"https://doi.org/10.1186/s40068-024-00345-8","url":null,"abstract":"Climate models are fundamental tools to estimates the reliable future climate change and its effects on the water resources and agriculture in basins. However, all climate models are not equally performed for all areas. Therefore, determining the most appropriate climate models for a specific study area is essential. The focus of this study was to evaluate the performance of the regional climate models with regard to simulating precipitation, and temperatures at Katar watershed. This study examines the performance of fourteen CORDEX-AFRICA-220 Regional Climate Models (RCMs) for the period of 1984–2005 using statistical metrics such as Pearson correlation coefficient (R), mean absolute error (MAE), root mean squared error (RMSE), and bias. The findings indicated that GERICS-MPI was better performed in representing Areta, and Bokoji station, GERICS-IPSL was better representing in Assela, Ketergenet, and Sagure station, CCCma-CanESM2-AFR22, and RCA4-ICHEC performed relatively better in representing the mean annual observed rainfall at the Kulumsa, and Ogolcho station respectively. However, RCA4-CSIRO performed weakly in estimation of annual rainfall at all stations. RCM model such as GERICS-MPI was relatively better than the others in replicating the annual pattern of the maximum temperature at Areta, Bokoji, and Ketergenet stations. Similarly, GERICS-IPSL were relatively better in replicating the annual maximum temperature at Assela, and Sagure stations, CCCma-CanESM2-AFR22 at Kulumsa station, and RCA4-ICHEC at Ogolcho station performed well in capturing the observed and simulated annual maximum temperature. Better performance was observed on minimum temperature at CCCma-CanESM2-AFR22 at Areta, Assela, and Ketergenet stations, GERICS-MOHE-AFR-22 at Bokoji station, GERICS-MPI at Kulumsa, and Ogolcho stations, RAC4-NOAA-2G at Sagure stations. However, weak performance was observed RCA4-CSIRO at all stations. RCM models of GERICS-MPI, and CCLM4-NCC-AFR-22 performed better than the other RCM models for correction of annual rainfall in Katar watershed. However, poor performance was observed at RCA4-ICHEC model on Katar watershed. The GERICS-MPI model performed well. However, poor performance was observed at RCA4-ICHEC on maximum temperature, and GERICS-NOAA-2M on minimum temperature in Katar watershed.","PeriodicalId":12037,"journal":{"name":"Environmental Systems Research","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140929709","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
Comparative analysis of key factors influencing urban green space in Mashhad, Iran (1988–2018) 影响伊朗马什哈德城市绿地的关键因素比较分析(1988-2018 年)
Pub Date : 2024-05-10 DOI: 10.1186/s40068-024-00346-7
Leila Rahmati, Toktam Hanaei
This paper analyzed the role of national economic factors, in addition to some key city-level variables, in the variation of the urban green space (UGS) in Mashhad City (Iran) during three decades (1998–2018). The correlation result revealed the effects of the increasing trend of land price, population rate, and construction of built-up areas in the decreasing trend of UGS in the study area (R from − 0.95 to -0.99 at p-value > 95%). Also, the country-level economic factors, i.e., GDP per capita, oil price, export total value, and FDI, represented the overall increasing trend from 1988 to 2018, correlating with the decrease of green space areas (R from − 0.76 to -0.92 at p-value > 75%). Some statistical analyses, such as the run-test, the skewness and kurtosis tests, the Kolmogorov-Smirnov test, and the ANOVA test were done to confirm the normality of the data distribution and reliability of the results. Ultimately, clustering the research variables based on the significance and confidence levels of the estimated correlation results revealed that the change in the oil price and national export values in the petroleum-dependent economy of Iran can be assumed as the lead key economic factors to fluctuate all city-level variables, particularly the UGS variations.
本文分析了伊朗马什哈德市三十年间(1998-2018 年)城市绿地(UGS)变化中除一些关键城市级变量外的国民经济因素的作用。相关结果显示,地价、人口比例和建成区建设的增长趋势对研究地区城市绿地减少趋势产生了影响(R 值从 - 0.95 到 -0.99,P 值大于 95%)。此外,国家层面的经济因素,即人均国内生产总值、石油价格、出口总值和外国直接投资,代表了从 1988 年到 2018 年的整体上升趋势,与绿地面积的减少相关(R 值从 - 0.76 到 -0.92,P 值 > 75%)。为了确认数据分布的正态性和结果的可靠性,还做了一些统计分析,如运行检验、偏度和峰度检验、Kolmogorov-Smirnov 检验和方差分析检验。最后,根据相关性估计结果的显著性和置信水平对研究变量进行聚类,发现在依赖石油的伊朗经济中,油价和国家出口值的变化可以被认为是导致所有城市级变量波动的主要经济因素,尤其是 UGS 的变化。
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引用次数: 0
Assessment of urban greenhouse gas emissions towards reduction planning and low-carbon city: a case study of Montreal, Canada 评估城市温室气体排放,实现减排规划和低碳城市:加拿大蒙特利尔案例研究
Pub Date : 2024-04-16 DOI: 10.1186/s40068-024-00341-y
Shadnoush Pashaei, Chunjiang An
Greenhouse gases (GHGs) can be produced from a broad range of anthropogenic activities at different spatial and temporal scales. In particular, emissions from urban area are an import source of GHGs. City is a complicated system consisting of various component and processes. Efforts have been made to reduce urban GHG emissions. However, there is a lack of available methods for effective assessment of such emissions. Many urban sources and factors which can influence the emissions are still unknown. In the present study, the GHG emissions from municipal activities was assessed. A model for the assessment of urban GHG emissions was developed. Based on the collected data, a case study was conducted to evaluate urban GHG emissions. The comprehensive assessment included the emissions from transportation, electricity consumption, natural gas, waste disposal, and wastewater treatment. There was a variation for GHG emissions from these sectors in different years. This study provided a new approach for comprehensive evaluation of urban GHG emissions. The results can help better understand the emission process and identify the major emission sources.
温室气体(GHGs)可由不同时空尺度的各种人为活动产生。其中,城市地区的排放是温室气体的一个重要来源。城市是一个由各种成分和过程组成的复杂系统。人们一直在努力减少城市温室气体排放。然而,目前还缺乏有效评估此类排放的方法。许多城市排放源和影响排放的因素仍然未知。本研究评估了城市活动的温室气体排放量。开发了一个城市温室气体排放评估模型。根据收集到的数据,进行了一项案例研究,以评估城市温室气体排放量。综合评估包括交通、电力消耗、天然气、垃圾处理和污水处理的排放量。这些部门在不同年份的温室气体排放量存在差异。这项研究为全面评估城市温室气体排放提供了一种新方法。研究结果有助于更好地了解排放过程并确定主要排放源。
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引用次数: 0
Impact of tree planting on household well-being: evidence from the central highlands of Vietnam 植树对家庭福祉的影响:来自越南中部高原的证据
Pub Date : 2024-04-05 DOI: 10.1186/s40068-024-00331-0
Hoang Huu Dinh, Shyam Basnet, Alec Zuo
Household land use decisions in the tropics have a wide range of outcomes and impacts on economic development, environmental conservation, and social development. This study seeks to contribute to this debate by examining the effects of tree planting on poverty alleviation and welfare improvement in Vietnam. We employ a combination of multinomial endogenous treatment effect and propensity score matching, using survey data collected from 239 households in 11 communes in Vietnam’s Central Highlands region. We find that households engaged in tree planting can increase their income and alleviate poverty compared to non-engaging households. Specifically, long-term cashew plantations provide early harvests and have proven to be a preferred crop for households dealing with immediate livelihood needs. However, short-term acacia timber crops contribute insignificantly to poverty reduction and may be more suitable for households with greater financial resources. The policy implication underscores the importance of interventions tailored to support impoverished households with urgent livelihood needs. Prioritizing immediate necessities is crucial before households can invest in long-term tree planting.
热带地区的家庭土地使用决策对经济发展、环境保护和社会发展有着广泛的结果和影响。本研究试图通过考察植树造林对越南减贫和福利改善的影响,为这一争论做出贡献。我们采用多项式内生处理效应和倾向得分匹配相结合的方法,利用从越南中央高原地区 11 个乡 239 个家庭收集到的调查数据。我们发现,与不参与植树造林的家庭相比,参与植树造林的家庭可以增加收入,减轻贫困。具体而言,长期腰果种植园能尽早收获,已被证明是解决当前生计需求的家庭的首选作物。然而,短期金合欢木材作物对减贫的贡献微乎其微,可能更适合财力雄厚的家庭。这一政策含义强调了为支持有迫切生计需求的贫困家庭而量身定制干预措施的重要性。在家庭投资长期植树之前,优先考虑眼前的必需品至关重要。
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引用次数: 0
Regional climate models and bias correction methods for rainfall-runoff modeling in Katar watershed, Ethiopia 埃塞俄比亚卡塔流域降雨-径流模型的区域气候模型和偏差校正方法
Pub Date : 2024-03-26 DOI: 10.1186/s40068-024-00340-z
Babur Tesfaye Yersaw, Mulusew Bezabih Chane
Systematic errors in regional climate models (RCMs) hinder their implementation and lead to uncertainties in regional hydrological climate change studies. As a result, checking the accuracy of climate model simulations and applying bias correction are preliminary methods for achieving consistent findings. Therefore, identifying suitable RCM models for bias correction is important for providing reliable inputs for evaluating climate change impacts. The impacts of bias correction methods on streamflow were assessed on the Katar catchment within the Lake Ziway subbasin using coordinated regional climate downscaling experiments with a spatial resolution of 50 km (CORDEX-44) RCMs through the Integrated Hydrological Modelling System (IHMS) version 6.3. This study evaluated fourteen RCM models under five precipitation and three temperature bias correction methods for the Katar catchment. Statistical approaches, such as bias (PBIAS), the root mean square error (RMSE), the mean absolute error (MAE), the coefficient of variation (CV), the coefficient of determination (R2), and the relative volume error (RVE), are used for performance analysis. GERICS-MPI, RAC4-NOAA-2G, and CCLM4-NCCR-AFR-22 have better performances for both rainfall and temprature. The empirical cumulative distribution function (ECDF) method performed best in removing bias from the frequency-based statistics of rainfall and streamflow, followed by the power transformation (PT), distribution mapping (DM), local intensity scaling (LOCI), and linear scaling (LS) methods. Specifically, for temperature, the VARI and DM methods perform better in frequency-based statistics than the LS method. The performance of hydrological modeling is strongly affected by the selection of rainfall bias correction methods. In addition, the effect of the temperature bias correction method was not significant. The adequacy of the BCM depends on the RCM models and regional context. Therefore, the BCM implementation procedure can be adapted from region to region. This study revealed that the performance of the RCM models differed and that the errors in the RCM model outputs were reduced by the use of bias correction methods.
区域气候模式(RCM)中的系统误差阻碍了其实施,并导致区域水文气候变化研究中的不确定性。因此,检查气候模型模拟的准确性和应用偏差修正是获得一致结论的初步方法。因此,确定合适的 RCM 模型进行偏差校正对于为评估气候变化影响提供可靠的投入非常重要。通过综合水文模拟系统(IHMS)6.3 版,使用空间分辨率为 50 千米(CORDEX-44)的区域气候降尺度协调实验 RCM,评估了偏差校正方法对齐威湖子流域卡塔集水区河水流量的影响。这项研究评估了卡塔集水区在五种降水和三种温度偏差校正方法下的 14 个 RCM 模型。采用偏差 (PBIAS)、均方根误差 (RMSE)、平均绝对误差 (MAE)、变异系数 (CV)、判定系数 (R2) 和相对体积误差 (RVE) 等统计方法进行性能分析。GERICS-MPI、RAC4-NOAA-2G 和 CCLM4-NCCR-AFR-22 在降雨量和温度方面都有较好的表现。经验累积分布函数(ECDF)方法在消除降雨量和河水流量基于频率统计的偏差方面表现最佳,其次是功率变换(PT)、分布映射(DM)、局部强度缩放(LOCI)和线性缩放(LS)方法。具体而言,对于温度,VARI 和 DM 方法在基于频率的统计中的表现优于 LS 方法。水文模型的性能受到降雨偏差校正方法选择的很大影响。此外,温度偏差校正方法的影响并不显著。BCM 的适当性取决于 RCM 模型和区域背景。因此,可以根据不同地区的情况调整业连管的实施程序。这项研究表明,区域气候变化模型的性能各不相同,使用偏差校正方法可减少区域气候变化模型输出的误差。
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引用次数: 0
Analysis of factors driving water main breaks across 13 Canadian utilities 加拿大 13 家公用事业公司水管断裂原因分析
Pub Date : 2024-03-15 DOI: 10.1186/s40068-024-00334-x
Sadaf Gharaati, Rebecca Dziedzic
Deterioration of water infrastructure is a global challenge that jeopardizes water system ability to deliver water safely. While various factors affect watermain failure, previous studies have focused on common pipe attributes or general protection strategies. The main objective of this study is to examine the relationship between pipe break characteristics and system properties. Comprehensive data from thirteen Canadian water systems (over 60,000 failures) are examined with correlation and chi-squared analyses. Joint and fitting failures are most likely for pipes aged 20 years or less, and universal joints are most associated with joint failure. Pipes in clay and sand soils are more likely to break due to improper bedding and differential settlement, respectively. Furthermore, in the summer, accidental breaks of asbestos cement pipes are more likely, as are failures of pipes with collar joints and coal tar lined pipes. By exploring these relationships, the paper provides insights into opportunities for reducing water main failure, through improved design, maintenance and rehabilitation.
供水基础设施的老化是一项全球性挑战,它危及供水系统的安全供水能力。虽然影响水管故障的因素多种多样,但以往的研究主要集中在常见的管道属性或一般保护策略上。本研究的主要目的是探讨管道断裂特征与系统属性之间的关系。通过相关分析和卡方分析,对加拿大十三个供水系统的综合数据(超过 60,000 次故障)进行了研究。管龄在 20 年或 20 年以下的管道最容易发生接头和管件故障,而万向接头与接头故障关系最大。粘土和沙土中的管道更容易破裂,原因分别是垫层不当和差异沉降。此外,在夏季,水泥石棉管道更容易发生意外断裂,带套圈接头的管道和煤焦油内衬管道也更容易发生故障。通过探讨这些关系,本文为通过改进设计、维护和修复来减少水管故障提供了启示。
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引用次数: 0
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Environmental Systems Research
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