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91.
Sharon L. Forbes David A. Cohen Ross Cullen Stephen D. Wratten Joanna Fountain 《Journal of Cleaner Production》2009,17(13):1195-1199
Previous research has suggested that consumers are becoming increasingly concerned by the effects of conventional agricultural food production practices on human health and environmental wellbeing. This study sought to understand whether environmentally sustainable practices in the vineyard would equate to advantages in the wine marketplace. Structured questionnaires were used to ascertain the views of wine consumers in Christchurch, New Zealand. The findings of this study indicate that consumers have a strong demand for wine which is produced using “green” production practices. Consumers believe that the quality of sustainable wine will be equal to or better than conventionally produced wine, and they are prepared to pay a higher price for this wine. 相似文献
92.
93.
Feminizing Turtle Embryos as a Conservation Tool 总被引:1,自引:0,他引:1
94.
G. Bruce Williamson † William F. Laurance † Alexandre A. Oliveira ‡ Patricia Delamônica † Claude Gascon † Thomas E. Lovejoy § and Luciano Pohl† 《Conservation biology》2000,14(5):1538-1542
Abstract: In 1997, the Amazon Basin experienced an exceptionally severe El Niño drought. We assessed effects of this rare event on mortality rates of trees in intact rain forest based on data from permanent plots. Long-term (5- to 13-year) mortality rates averaged only 1.12% per year prior to the drought. During the drought year, annual mortality jumped to 1.91% but abruptly fell back to 1.23% in the year following El Niño. Trees dying during the drought did not differ significantly in size or species composition from those that died previously, and there was no detectable effect of soil texture on mortality rates. These results suggest that intact Amazonian rainforests are relatively resistant to severe El Niño events. 相似文献
95.
Mathilde Lefebvre Fabienne Dufernez Ange-Line Bruel Marie Gonzales Bernard Aral Judith Saint-Onge Nadège Gigot Julie Desir Caroline Daelemans Frédérique Jossic Sébastien Schmitt Raphaele Mangione Fanny Pelluard Catherine Vincent-Delorme Jean-Marc Labaune Nicole Bigi Dominique D'Olne Anne-Lise Delezoide Annick Toutain Sophie Blesson Valérie Cormier-Daire Julien Thevenon Salima El Chehadeh Alice Masurel-Paulet Nicole Joyé Claude Vibert-Guigue Luc Rigonnot Thierry Rousseau Pierre Vabres Philippe Hervé Antonin Lamazière Jean-Baptiste Rivière Laurence Faivre Nicole Laurent Christel Thauvin-Robinet 《黑龙江环境通报》2015,35(7):675-684
96.
Glenn EP Flessa KW Cohen MJ Nagler PL Rowell K Zamora-Arroyo F 《Environmental management》2007,40(1):1-6
A recent article in Environmental Management by All argued that flood flows in North America’s Colorado River do not reach the Gulf of California because they are captured
and evaporated in Laguna Salada, a below sea-level lakebed near the mouth of the river. We refute this hypothesis by showing
that (1) due to its limited area, the Laguna Salada could have evaporated less than 10% of the flood flows that have occurred
since 1989; (2) low flow volumes preferentially flow to the Gulf rather than Laguna Salada; (3) All’s method for detecting
water surface area in the Laguna Salada appears to be flawed because Landsat Thematic Mapper images of the lakebed show it
to be dry when All’s analyses said it was flooded; (4) direct measurements of salinity at the mouth of the river and in the
Upper Gulf of California during flood flows in 1993 and 1998 confirm that flood waters reach the sea; and (5) stable oxygen
isotope signatures in clam shells and fish otoliths recorded the dilution of seawater with fresh water during the 1993 and
1998 flows. Furthermore, All’s conclusion that freshwater flows do not benefit the ecology of the marine zone is incorrect
because the peer-reviewed literature shows that postlarval larval shrimp populations increase during floods, and the subsequent
year’s shrimp harvest increases. Furthermore, freshwater flows increase the nursery area for Gulf corvina (Cynoscion othonopterus), an important commercial fish that requires estuarine habitats with salinities in the range of 26–38‰ during its natal stages.
Although flood flows are now much diminished compared to the pre-dam era, they are still important to the remnant wetland
and riparian habitats of the Colorado River delta and to organisms in the intertidal and marine zone. Only a small fraction
of the flood flows are evaporated in Laguna Salada. 相似文献
97.
Solvent toxicity to amphibian embryos and larvae 总被引:1,自引:0,他引:1
Organic micropollutants are often damaging for aquatic organisms. Being usually hydrophobic compounds, they are often dissolved in an organic co-solvent which increases their solubility in water. The aim of this study was to study the toxicity of various solvents on embryos (protected or not by jelly coat) and on tadpoles of the common frog (Rana temporaria). Tested solvents were methanol (MeOH), methylene chloride (CH(2)Cl(2)), dimethyl sulfoxyde (DMSO), acetone (Ac) and ethanol (EtOH). Embryos exhibited higher mortality rates than tadpoles. Embryos with jelly were more sensitive to high concentration of solvents than embryos without jelly (except for acetone). According to these results, Ac, DMSO and CH(2)Cl(2) can be used as co-solvents in water to help the dissolution of micropollutants at concentration equal to or lower than 0.001 ml/l for frog embryos, and EtOH, Ac and CH(2)Cl(2) at concentration equal to or lower than 0.01 ml/l for Rana temporaria tadpoles. 相似文献
98.
99.
Anthony M. Rizzuti Arthur D. Cohen Patrick G. Hunt Matias B. Vanotti 《Journal of environmental science and health. Part. B》2013,48(4):709-748
Abstract This paper reports on research designed to investigate the capacities of different highly characterized peats to remove odorous compounds from liquid swine manure (LSM). Peat types representing a wide range of properties were tested in order to establish which chemical and physical properties might be most indicative of their capacities to remediate odors produced by LSM. Eight percent slurries (of peat/LSM) were measured for odor changes after 24 hours using odor panel and GC/MS‐Solid‐phase microextraction (GC/MS‐SPME) analysis. The GC/MS‐SPME and odor panel results indicated that, although all peats tested in this study were found to be effective at removing odor‐causing compounds found in LSM, some peats tended to work better than others. Overall, the peats that were the most effective at removing odor‐causing compounds tended to have lower bulk densities, ash contents, fulvic acids contents, and guaiacyl lignins contents,and higher water holding capacities, hydraulic conductivities, “total other lignins”; contents, hydrogen contents, carbon contents, and total cellulose contents. GC/MS‐SPME analysis was found to be a reasonably inexpensive and efficient way of conducting this type of research. It allows one to identify a large number of the odor‐causing compounds found in LSM, and more importantly, to detect with some precision specific differences in the amounts of these compounds between peat types. 相似文献
100.
This paper summarizes current research, practices, and regulations regarding walking/working surface slipperiness and coefficient of friction (COF) measurements. The literature and data are reviewed from three aspects:
- 1. (a) the biomechanics of walking and psychophysiological factors involved in slips and falls studied by the scientific community,
- 2. (b) various measuring devices and methods developed in an attempt to quantify the “slipperiness” of walking/working surfaces, and
- 3. (c) an acceptable quantitative standard for the “slipperiness” of surfaces and the impact of the Americans with Disabilities Act (ADA) on such a standard.