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Selection of overburden surface mining method in west virginia by analytical hierarchy process

International Journal of Coal Science & Technology 2014年第3期1卷 306-314页

作者： Timothy A.Nolan Vladislav Kecojevic Department of Mining Engineering West Virginia UniversityMorgantownWVUSA

The broad objective of this research was to improve current surface mining practices and reduce negative environmental impact of overburden removal in west virginia(WV).The specific objectives were to(i)compare conventional surface mining method(drilling,blasting,digging,and loading)to a surface miner(SM)method,and(ii)apply the analytical hierarchy process(AHP)to help select the optimal mining method based on production,cost and environmental *** design and the procedures used in this research involve five interrelated modules:(i)rock properties of overburden in WV,(ii)drilling and blasting,(iii)digging and loading,(iv)SM method,and(v)comparative analysis and selection of the optimal mining method by *** of this research indicate that application of SM method would yield higher cost of overburden removal than conventional mining methods in rocks with a high unconfined compressive strength and abrasivity.A significant advantage of SM method,where applicable,is the elimination of the negative environmental impacts associated with blasting.

关键词： Surface mining west virginia Overburden Production rate Cost Environmental impact AHP model

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Forests of west virginia,U.S.A. and Shaanxi,China:a study in forest exploitation and recovery

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Journal of Forestry Research 2004年第1期15卷 49-54,J002-J003页

作者： Jack E.Coster 彭鸿张秦岭 Morgantown West Virginia.U.S.A 陕西水土保持局西安710004 西北农林科技大学生命科学学院陕西杨凌712100

A review of the period of unregulated exploitation of forests in the state of west virginia (U.S.) and in Shaanxi Province, PRC was presented. Economic and ecological recovery from exploitation has been different in the two regions due to basic differences in nature of the forest and in the degree and persistence of exploitive pressures. After a century since unregulated exploitation, west virginia forests are well on the road to management for sustainability and conservation. Shaanxi's recovery from overuse and unregulated exploitation is less certain; forests are still in the early phases of ecological recovery there. Full recovery to a period of sustainability will take a century or longer. Suggestions are made for measures needed to enhance the forest recovery. Keywords Forests - Shaanxi - west virginia - Central China - Forest exploitation - Recovery CLC number S754 Document code A Article ID 1007-662X(2004)01-0049-06 Foundation item: The project was sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (2002–2004) and Shaanxi Provincial Foreign Expert Bureau (2003).Biography: Jack E. Coster (1935-), male, professor of west virginia University, Morgantown, west virginia. U.S.A.Responsible editor: Song Funan

关键词： Forests Shaanxi west virginia Central China Forest exploitation Recovery

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Functional Equivalence of Created Wetland Water Quality: A Comparison of Amphibian Metamorphic Success

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Open Journal of Ecology 2020年第7期10卷 418-439页

作者： Lauren A. McPherson Ida Holásková James T. Anderson School of Natural Resources West Virginia University Morgantown WV USA Office of Statistics Davis College of Agriculture Natural Resources and Design West Virginia University Morgantown WV USA

Wetlands are often created through wetland mitigation to replace lost natural wetlands, but further evaluation is needed to determine the ability of a created wetland to replace lost wetland functions, especially providing wildlife habitat. We used a mesocosm design to compare the water quality between three created wetlands and three natural wetlands in west virginia, USA and to evaluate how the water quality from the two wetland types were able to support metamorphosis in larval spring peepers (Pseudacris crucifer) and wood frogs (Lithobates sylvaticus) across two years (2014-2015). Responses in metamorphosis rates differed between species and between years. Spring peepers displayed similar metamorphosis rates in the created and natural wetlands in both years of the study. Wood frogs displayed similar metamorphosis rates in created and natural wetlands in 2015, but in 2014 wood frogs reached metamorphosis in less time and at a larger body size in the natural wetlands, suggesting that the wood frogs that developed in the natural wetlands may have higher fitness than those that developed in the created wetlands. Water quality was largely similar between created and natural wetlands, although dissolved oxygen, conductivity, and pH varied between mesocosms and wetlands. Our study suggests that created wetlands may be providing partial mitigation in terms of water quality for amphibian development. We recommend that future monitoring of created wetlands include measures of juvenile amphibian recruitment as well as additional habitat variables to better determine the ability of created wetlands to function as amphibian habitat.

关键词： Appalachians Pseudacris crucifer Spring Peeper Lithobates sylvaticus west virginia Wood Frog

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