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排序方式: 共有440条查询结果,搜索用时 15 毫秒
1.
Merçon Julia Silva Cabral Dandara Chisté Teixeira Bárbara Miura Pereira Tatiana Magalhães Bona Alliny Valadares Locateli Armini Catharina do Nascimento Agostinho Silvia Gabriela Carvalho Gomes Levy 《Environmental science and pollution research international》2021,28(47):66643-66655
Environmental Science and Pollution Research - The Fundão Dam collapsed, on November 5th, 2015, dumping more than 50 million/m3 of iron ore tailings, enriched with metals, into the Doce River... 相似文献
2.
Sofia A. Kyriakeas Mary C. Watzin 《Journal of the American Water Resources Association》2006,42(2):425-441
Benthic macroinvertebrate communities in streams adjacent to cornfields, streams where cows had unrestricted access, and reference locations without agriculture were compared to examine the effects of local land use and land use/land cover in the watershed. At each local site, macroinvertebrates and a variety of habitat parameters were measured upstream, adjacent, downstream, and farther downstream of the local land use. A geographic information system (GIS) was used to calculate drainage basin area, land use/land cover percentages in each basin, and the distance from sample sites to the stream source. Three‐way analysis of covariance (ANCOVA) tests with date, site type, and sampling location as main effects were used to explore differences in macroinvertebrate metrics using median substrate size, percent hay/pasture area, and stream depth as covariates. The covariates significantly improved model fit and showed that multiple contributing factors influence community composition. Local impacts were greatest at sites where cows had access, probably because of sedimentation and embeddedness in the substrate. Differences between the upstream and the adjacent and downstream locations were not as great as expected, perhaps because upstream recolonization was reduced by agricultural impacts or because of differences in the intensity or proximity of agriculture to riparian areas in the watershed. The results underscore the importance of both local and watershed factors in controlling stream community composition. 相似文献
3.
引言 人类活动导致了水资源的过度开发和污染.<水框架指令>(WFD,2000/60/EG)就是为确保水资源的可持续利用、确保水资源的效果而拟定的.为达到WFD所概括的目标,一项明显的内容是:水资源的管理中要有各利益方的参与.把各利益方吸纳进来是一个重要步骤,可确保流域管理计划的发展考虑当地的经验,并且考虑这些计划对当地利益的影响. 相似文献
4.
Á. Pereira A. Carballo-Penela A. Guerra X. Vence 《Journal of Environmental Planning and Management》2018,61(2):348-369
The servicising approach in vineyard protection is considered a valid alternative to achieve decoupling between the economic and environmental performance of viticulture. In this paper, a policy package is designed to promote the uptake of a servicised model of vineyard protection in an area of smallholding viticulture. In doing so, a specific methodology based on a step by step protocol has been followed that aims to come up with a package that is effective, implementable and socially as well as politically acceptable. The paper concludes on the importance of combining several policy instruments in a policy package to realise the political objective. The proposed viable policy package includes incentives that support the companies’ shift towards offering crop protection solutions, further development of IPM solutions and instruments that encourage farmers to reduce the use of pesticides and collectively hire crop protection services. 相似文献
5.
Vincent A. Dutkiewicz Sofia Alvi Badar M. Ghauri M. Iqbal Choudhary Liaquat Husain 《Atmospheric environment (Oxford, England : 1994)》2009,43(10):1737-1744
We report data from a yearlong (2006–2007) study of black carbon concentrations ([BC]) measured at 5-min intervals with an Aethalometer in Karachi, Pakistan. Daily mean [BC] varied from about 1 to 15 μg m?3. However, short-term spikes exceeding 40 μg m?3 were common, occurring primarily during the morning and evening rush-hour periods. The [BC] values were highest during November through February, ~10 μg m?3, and lowest during June through September, ~2 μg m?3. Diurnal, seasonal, and day-of-the-week trends are discussed. It is demonstrated that these trends are strongly affected by meteorological patterns. A simple expression is applied to the concentration profiles to separate the effects of meteorological conditions and elucidate the underlying emissions patterns. Daily emissions varied from 14,000 to 22,000 kg of BC per day. When integrated over the year emissions for Karachi Proper were estimated at 6.7 kilometric tons per year and emissions for greater Karachi were 17.5 kilometric tons per year. Folding in the populations of each area yields BC emissions of 0.74 and 1.1 kg per person per year, respectively. Applying the model to previously collected data at Lahore, Pakistan yields emissions during November–January that are around a factor of two higher than those in Karachi, but because the BC measurements in Lahore covered only three months, no estimates of annual emissions were attempted. Given the large populations of these cities the local health impact from PM alone is expected to be severe but because of the high [BC] emissions the impact on the global climate may be equally significant. 相似文献
6.
Mendes Rafael Farinassi Narciso Carolina Rezende Pinto Mendes Juliana Farinassi Viana Queilla Santos Eugênio Tony Matheus Carvalho Vilela Alan Pereira 《Environmental science and pollution research international》2021,28(28):37217-37230
Environmental Science and Pollution Research - The development of building materials using new types of raw materials is currently on demand by society and the industry. It is intended to reduce... 相似文献
7.
Pereira Andressa Rezende Paranhos Aline Gomes de Oliveira de Aquino Sérgio Francisco Silva Silvana de Queiroz 《Environmental science and pollution research international》2021,28(21):26380-26403
Environmental Science and Pollution Research - Animal breeding for meat production based on swine, cattle, poultry, and aquaculture is an activity that generates several impacts on the environment,... 相似文献
8.
Brovini Emília Marques Cardoso Simone Jaqueline Quadra Gabrielle Rabelo Vilas-Boas Jéssica Andrade Paranaíba José R. Pereira Renata de Oliveira Mendonça Raquel Fernandes 《Environmental science and pollution research international》2021,28(43):60635-60648
Environmental Science and Pollution Research - Glyphosate is the most used herbicide worldwide. Many studies have reported glyphosate risks to aquatic organisms of different trophic levels.... 相似文献
9.
de Moura Stéfany G. Dauzakier Ligiane C. L. Pereira Leydiane O. Ramalho Teodorico C. de Oliveira Luiz C. A. Magalhães Fabiano 《Environmental science and pollution research international》2021,28(31):42093-42106
Environmental Science and Pollution Research - Water contamination is a common problem, especially considering dyes and drugs disposal. A possible and effective treatment method to remove these... 相似文献
10.
Pinho P Augusto S Martins-Loução MA Pereira MJ Soares A Máguas C Branquinho C 《Environmental pollution (Barking, Essex : 1987)》2008,154(3):380-389
With the aim of determining the main drivers of changes in nitrophytic and oligotrophic macro-lichen communities in an industrial region with a Mediterranean climate, we considered both land-cover types and atmospheric pollutants. We determined the relation between the abundance of nitrophytic and oligotrophic species with environmental factors considering the distance of influence of land-cover types. The results showed that oligotrophic species decreased in the proximity of artificial areas, barren land and agricultural areas, associated with higher concentrations of NO2 and Zn, and Ti, probably dust of industrial and agricultural origin. Nitrophytic species were positively related to all the mentioned land-cover types, and with higher concentrations of Fe and N. Magnesium, probably from ocean aerosols, was negatively related to oligotrophic species and positively to nitrophytic. 相似文献