排序方式: 共有4条查询结果,搜索用时 0 毫秒
1
1.
Carline Pitz Grégory Mahy Cédric Vermeulen Christine Marlet Maxime Séleck 《Environmental science and pollution research international》2016,23(14):13661-13671
This study aims to establish a common Key Performance Indicators (KPIs) framework for reporting about the gypsum industry biodiversity at the European level. In order to integrate different opinions and to reach a consensus framework, an original participatory process approach has been developed among different stakeholder groups: Eurogypsum, European and regional authorities, university scientists, consulting offices, European and regional associations for the conservation of nature, and the extractive industry. The strategy is developed around four main steps: (1) building of a maximum set of indicators to be submitted to stakeholders based on the literature (Focus Group method); (2) evaluating the consensus about indicators through a policy Delphi survey aiming at the prioritization of indicator classes using the Analytic Hierarchy Process method (AHP) and of individual indicators; (3) testing acceptability and feasibility through analysis of Environmental Impact Assessments (EIAs) and visits to three European quarries; (4) Eurogypsum final decision and communication. The resulting framework contains a set of 11 indicators considered the most suitable for all the stakeholders. Our KPIs respond to European legislation and strategies for biodiversity. The framework aims at improving sustainability in quarries and at helping to manage biodiversity as well as to allow the creation of coherent reporting systems. The final goal is to allow for the definition of the actual biodiversity status of gypsum quarries and allow for enhancing it. The framework is adaptable to the local context of each gypsum quarry. 相似文献
2.
Carline RF DeWalle DR Sharpe WE Dempsey BA Gagen CJ Swistock B 《Environmental pollution (Barking, Essex : 1987)》1992,78(1-3):45-48
Five streams were studied on the Northern Appalachian Plateau of Pennsylvania from October 1988 through June 1989 to determine chemical changes that occur during episodic storm run-off and the responses of fish to these events. These second-order streams flowed through undisturbed, wooded, sandstone bedrock catchments with surface areas ranging from 500 to 1000 hectares. Median pH of precipitations was about 4.2, and among streams it ranged from 5.0 to 6.2. During storm events, pH declined by as much as 1.2 units and peak concentrations of total monomeric Al ranged from < 0.01 to 0.75 mg litre(-1). Organically bound A1 was generally a minor component of total monomeric A1. Wild brook trout (Salvelinus fontinalis) were found in all streams, although only a remnant population existed in the most acidic stream. Sculpins (Cottus bairdi or C. cognatus) were collected only in the two streams with the least severe episodes. Mortality of brook trout and sculpins in in situ bioassays ranged from 0 to about 80% among streams during acidic episodes and was positively related to concentrations of total dissolved Al. Radio-tagged brook trout moved downstream during episodes when Al reached toxic concentrations. Some displaced trout were found near groundwater seeps, where pH was higher and dissolved Al was lower than in the main channel. 相似文献
3.
Elwood L. Shafer Robert Carline Richard W. Guldin H. Ken Cordell 《Environmental management》1993,17(5):669-682
The travel clost method (TCM) and contingent valuation method (CVM) were used to evaluate the economic value of six different
ecotourism activities involving observation of wildlife in Pennsylvania. The six activities were: catch-and-release trout
fishing; catch-and-release trout fishing with fly-fishing equipment; viewing waterfowl; watching elk; observing migration
flights of raptors; and seeing live wildlife in an environmental education setting. TCM results provided significant statistical
relationships between level of use and travel costs for the two types of trout fishing activities. CVM provided estimates
of consumer surplus for the other four sites. The consumers' surplus value (1988 dollars) of all six activities to participants
amounted to a total of more than $1.28 million annually—twice the total out-of-pocket expenditures of approximately $640,000
spent to visit the sites. The economic amenity values of the six activities compare favorably with similarly derived values
in other studies for hunting, fishing, hiking, and backpacking in dispersed recreation environments and wilderness areas in
western states. 相似文献
4.
Burger J Campbell KR Campbell TS Shukla T Dixon C Gochfeld M 《Environmental monitoring and assessment》2005,110(1-3):171-184
We compared the levels of arsenic, cadmium, chromium, lead, manganese, mercury and selenium in a small species of fish (Central
stonerollers, Campostoma anomalum) collected from East Fork Poplar Creek (EFPC) and a reference site in eastern Tennessee. Stonerollers are minnows in the
Cyprinidae family that serve as prey for many carnivores in aquatic systems. Fish were collected from East Fork Poplar Creek
within the U.S. Department of Energy's Y-12 National Security Complex, part of the Oak Ridge Reservation, and from a reference
stretch of the Little River in East Tennessee. Whole fish were homogenized for analysis. Concentrations of all metals (except
arsenic) were significantly higher in stonerollers from EFPC compared to the reference site. Mercury levels in minnows from
EFPC averaged 0.4 ppm (μg/g), four times higher than the average for fish in the U.S. in general. This was higher than levels
in fish from the nearby Clinch River and higher than fillets of white bass (Morone chrysops) from the same creek. Most metal levels were inversely related to size and weight of the stonerollers, perhaps due to growth
dilution. 相似文献
1