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Depressional wetlands may be restored passively by disrupting prior drainage to recover original hydrology and relying on natural revegetation. Restored hydrology selects for wetland vegetation; however, depression geo-morphology constrains the achievable hydroperiod, and plant communities are influenced by hydroperiod and available species pools. Such(More)
Carolina bays and smaller depression wetlands support diverse plant communities and provide critical habitat for semi-aquatic fauna throughout the Coastal Plain region of the southeastern United Stares. Historically, many depression wetlands were altered or destroyed by surface ditching, drainage, and agricultural or silviculture uses. These important(More)
Restoration of coastal plain depressions, a biologically significant and threatened wetland type of the southeastern United States, has received little systematic research. Within the context of an experimental project designed to evaluate several restoration approaches, we tested whether successful revegetation can be achieved by passive methods(More)
Mountaintop removal mining with valley fills (MTR/VF) is a ubiquitous form of land conversion in central Appalachia, USA and threatens the integrity of stream ecosystems. We investigated the effects of MTR/VF on stream salamander occupancy and overall community composition in southeastern Kentucky by conducting area constrained active searches for(More)
Plant pathogens of the genus Phytophthora may pose a threat to trees on reclaimed mine lands. The presence of these pathogens in forest soils of Appalachia has been documented, but their presence and relative distribution in mine spoils is unknown. Soil samples from mine spoils at the Bent Mountain, KY reforestation site were tested for presence of(More)
Headwater streams generally comprise the majority of stream area in a watershed and can have a strong influence on downstream food webs. Our objective was to determine the effect of altering streamside management zone (SMZ) configurations on headwater aquatic insect communities. Timber harvests were implemented within six watersheds in eastern Kentucky. The(More)
This study examines economic issues that affect the decision to reclaim land disturbed by oil and gas development. We start with a discussion of the current reclamation bonding requirements in Wyoming, which are intended to insure the proper reclamation of disturbed land. Next, a simple economic framework is proposed for modeling reclamation decision making(More)
The 488-D Ash Basin (488-DAB) is an unlined, earthen landfill containing approximately 1 million t of dry ash and coal reject material at the U.S. Department of Energy's Savannah River Site, South Carolina. The pyritic nature of the coal rejects has resulted in the formation of acidic drainage, which has contributed to groundwater deterioration and(More)
A containment and disposition water management strategy has been implemented at the Savannah River Site to minimize the discharge of tritiated groundwater from the Old Radioactive Waste Burial Ground to Fourmile Branch, a tributary of the Savannah River. This paper presents a general overview of the water management strategy, which includes a two-component(More)