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251.
A laboratory-based study was performed to assess the impact of climate warming on the recruitment of the endangered population
of the European lobster (Homarus gammarus) at Helgoland (North Sea, German Bight). Egg-bearing females collected in situ just after spawning in late summer were subjected
to various seasonal temperature regimes. Regimes with elevated temperatures (mild winters) resulted in a strong seasonal forward
shift of larval hatching. Hatching took place at significantly lower temperatures than under regimes with normal winters.
Experiments on larval development across a range of constant temperatures showed that no successful larval development occurred
at temperatures below 14°C. Larval survival increased from 9% at 14°C to 80% at 22°C, while duration of larval development
decreased correspondingly from 26 to 13 days. We hypothesize that an ongoing warming of the North Sea will strongly affect
the recruitment success of the Helgoland lobster, mainly resulting from a decoupling of the seasonal peak appearance of larvae
from optimal external conditions (temperature, food availability) for larval development. 相似文献
252.
<正>两个五年规划的过渡期是中国的关键时刻,受到中外分析家的密切关注。但30年的极速增长之后,这种发展模式的所有困境和后果也随之而来,而第十二个五年规划(以下简称"十二五"规划)展现了中国政府承诺将继续胸怀壮志地走向更可持续发展的道路模式。若"十二五"规划取得成功,"十二五"或将成为中国发展的关键时期,甚至将成为具有国 相似文献
253.
Rosa M. Pintó M. Isabel Costafreda Francisco J. Pérez-Rodriguez Lucía D’Andrea Albert Bosch 《Food and environmental virology》2010,2(3):127-135
Hepatitis A is the most common among all hepatitis worldwide in spite of an efficient vaccine and improved hygiene. Shellfish-borne
outbreaks are still of major concern causing hundreds of cases and huge economical losses in the present context of global
food trade. Hepatitis A virus (HAV) is a unique picornavirus with many differences in its molecular biology including both
its incapacity to induce the inhibition of the cellular protein synthesis and a highly biased and deoptimized codon usage
with respect the cell. The final goal of this intriguing strategy seems to be the need for a fine-tuning control of the translation
kinetics, particularly at the capsid coding region, and the underlying mechanism is the use of a right combination of common
and rare codons to allow a regulated ribosome traffic rate thus ensuring the proper protein folding. Capsid folding is critical
to warrant a high environmental stability for a virus transmitted through the fecal–oral route with long extracorporeal periods. 相似文献
254.
Smallegange IM 《Die Naturwissenschaften》2011,98(4):339-346
Investigating how the environment affects age and size at maturity of individuals is crucial to understanding how changes
in the environment affect population dynamics through the biology of a species. Paternal phenotype, maternal, and offspring
environment may crucially influence these traits, but to my knowledge, their combined effects have not yet been tested. Here,
I found that in bulb mites (Rhizoglyphus robini), maternal nutrition, offspring nutrition, and paternal phenotype (males are fighters, able to kill other mites, or benign
scramblers) interactively affected offspring age and size at maturity. The largest effect occurred when both maternal and
offspring nutrition was poor: in that case offspring from fighter sires required a significantly longer development time than
offspring from scrambler sires. Investigating parental effects on the relationship between age and size at maturity revealed
no paternal effects, and only for females was its shape influenced by maternal nutrition. Overall, this reaction norm was
nonlinear. These non-genetic intergenerational effects may play a complex, yet unexplored role in influencing population fluctuations—possibly
explaining why results from field studies often do not match theoretical predictions on maternal effects on population dynamics. 相似文献
255.
256.
Periyasamy Selvakumar Karthik V. Senthil Kumar P. Isabel J. Beula Temesgen Tatek Hunegnaw B. M. Melese B. B. Mohamed Badr A. Vo Dai-Viet Nguyen 《Environmental Chemistry Letters》2022,20(2):1129-1152
Environmental Chemistry Letters - Actual agricultural practices produce about 998 million tonnes of agricultural waste per year. Therefore, converting lignocellulosic wastes into energy, chemicals,... 相似文献
257.
Biodegradable chelating agents for industrial,domestic, and agricultural applications—a review 总被引:1,自引:0,他引:1
Isabel S. S. Pinto Isabel F. F. Neto Helena M. V. M. Soares 《Environmental science and pollution research international》2014,21(20):11893-11906
Aminopolycarboxylates, like ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA), are chelating agents widely used in several industrial, agricultural, and domestic applications. However, the fact that they are not biodegradable leads to the presence of considerable amounts in aquatic systems, with serious environmental consequences. The replacement of these compounds by biodegradable alternatives has been the object of study in the last three decades. This paper reviews the most relevant studies towards the use of environmentally friendly chelating agents in a large number of applications: oxidative bleaching, detergents and cleaning compositions, scale prevention and reduction, remediation of soils, agriculture, electroplating, waste treatment, and biocides. Nitrilotriacetic acid (NTA), ethylenediaminedisuccinic acid (EDDS), and iminodisuccinic acid (IDS) are the most commonly suggested to replace the nonbiodegradable chelating agents. Depending on the application, the requirements for metal complexation might differ. Metal chelation ability of the most promising compounds [NTA, EDDS, IDS, methylglycinediacetic acid (MGDA), l-glutamic acid N,N-diacetic acid (GLDA), ethylenediamine-N,N′-diglutaric acid (EDDG), ethylenediamine-N,N′-dimalonic acid (EDDM), 3-hydroxy-2,2-iminodisuccinic acid (HIDS), 2-hydroxyethyliminodiacetic acid (HEIDA), pyridine-2,6-dicarboxylic acid (PDA)] with Fe, Mn, Cu, Pb, Cd, Zn, Ca, and Mg was simulated by computer calculations. The advantages or disadvantages of each compound for the most important applications were discussed. 相似文献
258.
Almeida Aleska Kaufmann de Almeida Isabel Kaufmann Guarienti José Antonio Gabas Sandra Garcia 《Environmental science and pollution research international》2022,29(6):8173-8173
Environmental Science and Pollution Research - 相似文献
259.
Gavin M. Jones Berry Brosi Jason M. Evans Isabel G. W. Gottlieb Xingwen Loy Mauricio M. Núñez-Regueiro Holly K. Ober Elizabeth Pienaar Rajeev Pillay Kathryn Pisarello Lora L. Smith Robert J. Fletcher Jr. 《Conservation biology》2022,36(3):e13872
International demand for wood and other forest products continues to grow rapidly, and uncertainties remain about how animal communities will respond to intensifying resource extraction associated with woody bioenergy production. We examined changes in alpha and beta diversity of bats, bees, birds, and reptiles across wood production landscapes in the southeastern United States, a biodiversity hotspot that is one of the principal sources of woody biomass globally. We sampled across a spatial gradient of paired forest land-uses (representing pre and postharvest) that allowed us to evaluate biological community changes resulting from several types of biomass harvest. Short-rotation practices and residue removal following clearcuts were associated with reduced alpha diversity (−14.1 and −13.9 species, respectively) and lower beta diversity (i.e., Jaccard dissimilarity) between land-use pairs (0.46 and 0.50, respectively), whereas midrotation thinning increased alpha (+3.5 species) and beta diversity (0.59). Over the course of a stand rotation in a single location, biomass harvesting generally led to less biodiversity. Cross-taxa responses to resource extraction were poorly predicted by alpha diversity: correlations in responses between taxonomic groups were highly variable (−0.2 to 0.4) with large uncertainties. In contrast, beta diversity patterns were highly consistent and predictable across taxa, where correlations in responses between taxonomic groups were all positive (0.05–0.4) with more narrow uncertainties. Beta diversity may, therefore, be a more reliable and information-rich indicator than alpha diversity in understanding animal community response to landscape change. Patterns in beta diversity were primarily driven by turnover instead of species loss or gain, indicating that wood extraction generates habitats that support different biological communities. 相似文献