全文获取类型
收费全文 | 401篇 |
免费 | 3篇 |
国内免费 | 4篇 |
专业分类
安全科学 | 5篇 |
废物处理 | 28篇 |
环保管理 | 31篇 |
综合类 | 37篇 |
基础理论 | 43篇 |
污染及防治 | 165篇 |
评价与监测 | 65篇 |
社会与环境 | 31篇 |
灾害及防治 | 3篇 |
出版年
2023年 | 3篇 |
2022年 | 26篇 |
2021年 | 42篇 |
2020年 | 11篇 |
2019年 | 11篇 |
2018年 | 18篇 |
2017年 | 22篇 |
2016年 | 30篇 |
2015年 | 11篇 |
2014年 | 26篇 |
2013年 | 37篇 |
2012年 | 22篇 |
2011年 | 30篇 |
2010年 | 15篇 |
2009年 | 14篇 |
2008年 | 14篇 |
2007年 | 13篇 |
2006年 | 14篇 |
2005年 | 10篇 |
2004年 | 5篇 |
2003年 | 8篇 |
2002年 | 8篇 |
2001年 | 3篇 |
2000年 | 4篇 |
1998年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1993年 | 1篇 |
1990年 | 1篇 |
1983年 | 2篇 |
1981年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有408条查询结果,搜索用时 15 毫秒
121.
Rios Camilla Oliveira Siqueira-Silva Advanio Inácio Pereira Eduardo Gusmão 《Environmental science and pollution research international》2021,28(12):14797-14811
Environmental Science and Pollution Research - The revegetation of areas degraded by iron ore mining is a difficult challenge mainly due to water availability and impoverished metal-rich... 相似文献
122.
Cristale Joyce Oliveira Santos Izabela Umbuzeiro Gisela de Aragão Fagnani Enelton 《Environmental science and pollution research international》2021,28(42):59244-59255
Environmental Science and Pollution Research - Organophosphate esters (OPEs) are substances globally used as flame retardants and plasticizers that have been detected in all environmental... 相似文献
123.
Aim
Injuries in adolescence are an important public health problem and a major cause of morbidity and mortality in this age group. This study aimed to determine the behaviour profile associated to risk of injury and the differences between genders, region and ethnic origin.Methods
A cross-sectional study design of a nationally representative sample of 1581 adolescents of the Portuguese Health Behaviour in School-Aged Children study.Results
An occurrence of one injury-related event in the previous year was reported by 21.4% of the respondents and 5.9% referred having more than one injury-related event. Boys reported higher frequency of those events when compared to girls, and non-Portuguese subjects referred higher frequency of events. Scoring higher in violence-related behaviour and psychosomatic complaints was associated to higher chances of referring more than one injury-related event.Conclusion
Gender, social background and behaviour profile are factors that seem to influence the risk of injuries. This information should guide those involved in the planning of injuries prevention programs in youth. 相似文献124.
Cabruca is an agroforest of cacao trees shaded by native forest trees. It is the predominant vegetation type throughout eastern part
of the range of the golden-headed lion tamarins, Leontopithecus chrysomelas, an endangered primate endemic to Atlantic Forest. Understanding how lion tamarins use this agroforest is a conservation
priority. To address this question, we documented the diet, home range size, group sizes and composition, density, number
of litters and body condition of lion tamarins living in cabruca, and other habitats. Jackfruit, Artocarpus heterophyllus, was the most used species used by lion tamarins in cabruca and was widely available and used throughout the year. In cabruca, home range size was the smallest (22–28 ha) and density of lion tamarins was the highest (1.7 ind/ha) reported for the species.
Group size averaged 7.4 individuals and was not significantly different among the vegetation types. In cabruca, groups produced one or two litters a year, and all litters were twins. Adult males in cabruca were significantly heavier than males in primary forest. Our study is the first to demonstrate that breeding groups of golden-headed
lion tamarins can survive and reproduce entirely within cabruca agroforest. Jackfruit proved to be a keystone resource for lion tamarins in cabruca, and bromeliads were important as an animal prey foraging microhabitat. In cases where cabruca contains concentrated resources, such as jackfruit and bromeliads, lion tamarins may not only survive and reproduce but may
fare better than in other forest types, at least for body condition and reproduction. 相似文献
125.
Renata B. S. Oliveira Riccardo Mugnai Carolina M. Castro Darcilio F. Baptista 《Environmental monitoring and assessment》2011,175(1-4):75-85
The purpose of this study was to establish a subsampling procedure for benthic macroinvertebrates to aid in the development of a multimetric index to assess the biological condition of streams. Data from six streams that are considered minimally impaired were used. Subsampling was done using a device divided into 24 quadrats. The sediment from each quadrat was sorted, and all organisms were removed and identified. Richness metrics were the most affected by subsample size. Relative-abundance metrics were the most stable, proving that the sample was well distributed throughout the tray and abundance proportions were maintained. The results showed that the macroinvertebrate assemblage present in the six quadrats was similar to that present in the full sample. These analyses indicated that six quadrats, randomly designated, with a minimum of 200 collected specimens could be used in place of the full sample. In routine water management, managing time and costs are a major challenge; therefore, this type of simplification is absolutely necessary to ensure that a biomonitoring tool is useful for practical applications. 相似文献
126.
Cristiane Rossi de Oliveira Luiz Augusto dos Santos Madureira 《Environmental monitoring and assessment》2011,173(1-4):91-105
Nonaromatic hydrocarbons and geochemical parameters from 17 sediment?Cwater interface samples were used to assess sources of organic matter in three harbors, located in Santa Catarina State, southern Brazil. The evaluation was based on the molar C/N/P ratios, abundance of resolved nonaromatic hydrocarbons (3.0?C25.9 ??g g???1), unresolved complex mixture, and two indexes: the carbon preference index (CPI) and the low molecular weight to high molecular weight ratio. The results indicate that the organic matter is predominantly of terrestrial origin (C/N > 10 and CPI > 2). Variations in the total organic carbon from 0.43 to 2.98 mmol g???1 and total phosphorus from 82.4 to 464.3 ??g g???1 showed no clear correlation with the silt and clay fractions of the sediments possibly due to anthropogenic input. In contrast to the low level of contamination based on the acyclic hydrocarbon distribution, the results obtained from a series of geologically stable hopanes and steranes reveal the presence of less degradable petroleum derivatives. 相似文献
127.
128.
Karine?Delevati?ColpoEmail author Liara?Colpo?Ribeiro Bruna?Wesz Ludmilla?Oliveira?Ribeiro 《Die Naturwissenschaften》2012,99(4):333-336
In order to determine the feeding preference of Aegla platensis in streams and the importance of microorganisms in its detritivore diet, we carried out two experiments designed to evaluate
the food preferences of A. platensis (1) among leaves with different levels of microbial colonization and (2) among insect larvae (Chironomidae, Simuliidae, Hydropsychidae)
and microbially conditioned leaves. A. platensis preferred animal over plant food items; when only leaves were offered, this aeglid preferred the leaves with higher levels
of microorganism conditioning. 相似文献
129.
Faria Maria Graciela Iecher Avelino Katielle Vieira Philadelpho Biane Oliveira dos Santos Bomfim Rafaela do Valle Juliana Silveira Júnior Affonso Celso Gonçalves Dragunski Douglas Cardoso de Souza Ferreira Ederlan de Souza Carolina Oliveira Ribeiro Camila Duarte Ferreira Colauto Nelson Barros Linde Giani Andrea 《Environmental science and pollution research international》2022,29(58):87519-87526
Environmental Science and Pollution Research - Lentinus crinitus bioaccumulates lithium in mycelia, but bioaccumulation may be affected by pH of the culture medium. Lithium is used in clinical... 相似文献
130.
Aurélie Pinto Rodrigues Patrícia Correia Oliveira Lúcia Guilhermino Laura Guimar?es 《Marine Biology》2012,159(9):2061-2074
This study investigated the effects of salinity on biomarkers of oxidative stress, energy metabolism, and neurotransmission of Carcinus maenas from an estuary low impacted by pollution and from an estuary under chemical stress in the NW Iberian Peninsula. Crabs were collected in the field and, following an acclimation period, they were exposed for 7 days to five salinity levels ranging from 4 to 45 psu. At the end of the exposure period, stress biomarkers were determined in samples of muscle and digestive gland. The biomarkers assessed in the muscle were the activities of the enzymes cholinesterases (ChE), of which acetylcholinesterase is involved in neurotransmission, and lactate dehydrogenase (LDH) and isocitrate dehydrogenase (IDH) that are involved in energy metabolism. The biomarkers assessed in the digestive gland were (1) the activities of the enzymes glutathione S-transferases (GST), glutathione reductase (GR), and glutathione peroxidase (GPx), involved in phase II biotransformation and the anti-oxidant defence system; (2) the levels of total glutathiones (TG), also belonging to the anti-oxidant system; and (3) the levels of lipid peroxidation as a measure of oxidative damage. The results showed a significant influence of salinity on neurotransmission, energy metabolism, anti-oxidant status, and oxidative damage of C. maenas. For some biomarkers, this influence was dependent on whether the crabs were collected at the low-polluted estuary or at the contaminated estuary. In particular, crabs collected at the low-polluted estuary showed altered neurotransmission and anti-oxidant defences (GR). Crabs collected at the impacted estuary showed alterations in neurotransmission, energy metabolism (IDH and LDH), biotransformation, and anti-oxidant defences (GST, GR, GPx, and TG), as well as in oxidative damage, indicating that salinity change superimposes higher stress on these organisms. For ChE, IDH, and TG, altered responses were induced by both hypo- and hypersalinity. 相似文献