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排序方式: 共有263条查询结果,搜索用时 187 毫秒
1.
Regional Environmental Change - Agro-ecosystem energy profiles reveal energy flows into, within, and out of US Great Plains farm communities across 140 years. This study evaluates external... 相似文献
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Duarte-Restrepo Edisson Noguera-Oviedo Katia Butryn Deena Wallace Joshua S. Aga Diana S. Jaramillo-Colorado Beatriz E. 《Environmental science and pollution research international》2021,28(12):14632-14653
Environmental Science and Pollution Research - Cartagena Bay is an estuarine system located in the Caribbean Sea (Colombia, South America), that receives fresh water from Canal del Dique, which is... 相似文献
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Adelodun Bashir Ajibade Fidelis Odedishemi Ibrahim Rahmat Gbemisola Ighalo Joshua O. Bakare Hashim Olalekan Kumar Pankaj Eid Ebrahem M. Kumar Vinod Odey Golden Choi Kyung-Sook 《Journal of Material Cycles and Waste Management》2021,23(6):2077-2086
Journal of Material Cycles and Waste Management - The recent emergence of the COVID-19 pandemic has contributed to the drastic production and use of healthcare and personal protective equipment,... 相似文献
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Social media and disasters: a functional framework for social media use in disaster planning,response, and research 总被引:1,自引:0,他引:1
J. Brian Houston Joshua Hawthorne Mildred F. Perreault Eun Hae Park Marlo Goldstein Hode Michael R. Halliwell Sarah E. Turner McGowen Rachel Davis Shivani Vaid Jonathan A. McElderry Stanford A. Griffith 《Disasters》2015,39(1):1-22
A comprehensive review of online, official, and scientific literature was carried out in 2012–13 to develop a framework of disaster social media. This framework can be used to facilitate the creation of disaster social media tools, the formulation of disaster social media implementation processes, and the scientific study of disaster social media effects. Disaster social media users in the framework include communities, government, individuals, organisations, and media outlets. Fifteen distinct disaster social media uses were identified, ranging from preparing and receiving disaster preparedness information and warnings and signalling and detecting disasters prior to an event to (re)connecting community members following a disaster. The framework illustrates that a variety of entities may utilise and produce disaster social media content. Consequently, disaster social media use can be conceptualised as occurring at a number of levels, even within the same disaster. Suggestions are provided on how the proposed framework can inform future disaster social media development and research. 相似文献
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Md. Abdullah Yousuf Al Harun Joshua Johnson Md. Nazim Uddin Randall W. Robinson 《环境科学学报(英文版)》2015,27(7):1-11
Decomposition of plant litter is a fundamental process in ecosystem function, carbon and nutrient cycling and, by extension, climate change. This study aimed to investigate the role of temperature on the decomposition of water soluble phenolics(WSP), carbon and soil nutrients in conjunction with the phytotoxicity dynamics of Chrysanthemoides monilifera subsp. monilifera(boneseed) litter. Treatments consisted of three factors including decomposition materials(litter alone, litter with soil and soil alone), decomposition periods and temperatures(5–15, 15–25and 25–35°C(night/day)). Leachates were collected on 0, 5, 10, 20, 40 and 60 th days to analyse physico-chemical parameters and phytotoxicity. Water soluble phenolics and dissolved organic carbon(DOC) increased with increasing temperature while nutrients like SO-24 and NO-13 decreased. Speed of germination, hypocotyl and radical length and weight of Lactuca sativa exposed to leachates were decreased with increasing decomposition temperature. All treatment components had significant effects on these parameters. There had a strong correlation between DOC and WSP, and WSP content of the leachates with radical length of test species. This study identified complex interactivity among temperature, WSP, DOC and soil nutrient dynamics of litter occupied soil and that these factors work together to influence phytotoxicity. 相似文献
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Joshua Eli Cinner Morgan Stuart Pratchett Nicholas Anthony James Graham Vanessa Messmer Mariana Menezes Prata Bezerra Fuentes Tracy Ainsworth Natalie Ban Line Kolind Bay Jessica Blythe Delphine Dissard Simon Dunn Louisa Evans Michael Fabinyi Pedro Fidelman Joana Figueiredo Ashley John Frisch Christopher John Fulton Christina Chemtai Hicks Vimoksalehi Lukoschek Jennie Mallela Aurelie Moya Lucie Penin Jodie Lynn Rummer Stefan Walker David Hall Williamson 《Regional Environmental Change》2016,16(4):1133-1146
Corals and coral-associated species are highly vulnerable to the emerging effects of global climate change. The widespread degradation of coral reefs, which will be accelerated by climate change, jeopardizes the goods and services that tropical nations derive from reef ecosystems. However, climate change impacts to reef social–ecological systems can also be bi-directional. For example, some climate impacts, such as storms and sea level rise, can directly impact societies, with repercussions for how they interact with the environment. This study identifies the multiple impact pathways within coral reef social–ecological systems arising from four key climatic drivers: increased sea surface temperature, severe tropical storms, sea level rise and ocean acidification. We develop a novel framework for investigating climate change impacts in social–ecological systems, which helps to highlight the diverse impacts that must be considered in order to develop a more complete understanding of the impacts of climate change, as well as developing appropriate management actions to mitigate climate change impacts on coral reef and people. 相似文献
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Solid waste is of serious concern in developing countries because of its high rate of generation and the low‐end quality of its management. Inefficient handling of solid wastes may result in deterioration of environmental quality, but it can also result in loss of potential resources. This study reviews current solid waste generation and management in Nigeria and the need for an effective collection, recovery, and recycling policy. Our review is based on literature searches and personal field surveys. Observations showed that uncontrolled electronic waste (e‐waste), agricultural‐waste (agro‐waste), scrap metals, waste polymers, and waste from the transportation sector are prevalent in Nigeria. Recent collection rates were less than 50% of the total solid waste generated (i.e., approximately 40% was collected). With an effective collection system and appropriate policies, the abundance of solid waste in the country could present material recovery and recycling opportunities that would boost the economy and move Nigeria closer to sustainable resource management. 相似文献
9.
Biao Huang Joshua K. Abbott Eli P. Fenichel Rachata Muneepeerakul Charles Perrings Leah R. Gerber 《Conservation biology》2017,31(4):809-817
A cap‐and‐trade system for managing whale harvests represents a potentially useful approach to resolve the current gridlock in international whale management. The establishment of whale permit markets, open to both whalers and conservationists, could reveal the strength of conservation demand, about which little is known. This lack of knowledge makes it difficult to predict the outcome of a hypothetical whale permit market. We developed a bioeconomic model to evaluate the influence of economic uncertainty about demand for whale conservation or harvest. We used simulations over a wide range of parameterizations of whaling and conservation demands to examine the potential ecological consequences of the establishment of a whale permit market in Norwegian waters under bounded (but substantial) economic uncertainty. Uncertainty variables were slope of whaling and conservation demand, participation level of conservationists and their willingness to pay for whale conservation, and functional forms of demand, including linear, quadratic, and log‐linear forms. A whale‐conservation market had the potential to yield a wide range of conservation and harvest outcomes, the most likely outcomes were those in which conservationists bought all whale permits. 相似文献
10.
de Grenade Rafael Rudow Joshua Taboada Hermoza Rossi Adauto Aguirre Maria Elena Scott Christopher A. Willems Bram Schultz Jennifer L. Varady Robert G. 《Regional Environmental Change》2017,17(3):789-802
Regional Environmental Change - Mountainous areas with extreme elevation gradients and corresponding ranges of biophysical and socioeconomic conditions are highly vulnerable to global change. We... 相似文献