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A Comparison Of Mature Bottomland Hardwood Forests In Natural And Altered Hydrologic Settings In Western Tennessee
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Book Synopsis A Comparison of Mature Bottomland Hardwood Forests in Natural and Altered Hydrologic Settings in Western Tennessee by : Timothy C. Wilder
Download or read book A Comparison of Mature Bottomland Hardwood Forests in Natural and Altered Hydrologic Settings in Western Tennessee written by Timothy C. Wilder and published by . This book was released on 1998 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sedimentation, Hydrology, and Bottomland Hardwood Forest Succession in Altered and Unaltered Tributaries of the Hatchie River, TN by : Aaron R. Pierce
Download or read book Sedimentation, Hydrology, and Bottomland Hardwood Forest Succession in Altered and Unaltered Tributaries of the Hatchie River, TN written by Aaron R. Pierce and published by . This book was released on 2005 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wetlands of Bottomland Hardwood Forests by : J.R. Clark
Download or read book Wetlands of Bottomland Hardwood Forests written by J.R. Clark and published by Elsevier. This book was released on 2012-12-02 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: These Proceedings comprise two parts. Part I contains eight contributed papers on hydrology, fauna, soils, forests, agriculture and ecology. Part II comprises reports resulting from the five interdisciplinary workgroups whose participants included ecologists, botanists, zoologists, engineers, hydrologists, agrologists, dendrologists, resource managers and other specialists. Their aim was to evaluate conservation and management practices for wetland portions of the bottomland forests of the southeastern United States and to provide technical advice to responsible federal agencies. Thus the book is a state-of-knowledge review of scientific literature and current research, particularly that necessary to understand the effects of alterations such as forest clearing, land drainage or levee building that impair natural functions, i.e. production of timber, maintenance of water quality, flood water storage, support of migrating waterfowl and fish, carbon dioxide balance of the atmosphere etc.
Book Synopsis Studies on Bottomland Hardwood Forest Restoration and Teaching with Geographic Information Systems (GIS) in Ecology Labs by : Matthew Earl Simmons
Download or read book Studies on Bottomland Hardwood Forest Restoration and Teaching with Geographic Information Systems (GIS) in Ecology Labs written by Matthew Earl Simmons and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of graduate students in the sciences preparing for careers in academia has long included elements to advance students as science researchers, but recent emphasis is being placed on developing students as instructors and education researchers as well. As such, objectives of this study included assessments of seedling responses to hydrology typical of floods in urban settings, the role of created microtopography in community development of a bottomland hardwood forest, and the influence of geographic information systems (GIS) on student motivation and conceptual knowledge. Substantial losses of bottomlands in Texas necessitate restoration to regain the ecosystem services that they provide. Restoration of proper hydrology is the most important aspect of wetland restoration, but this can prove difficult in urbanizing environments where hydrology has been irreversibly altered. Microtopography has been shown to be an important component of bottomland hardwood forests, and its restoration may aid in hydrologic restoration as gradients are created that support a diverse community. Tree seedlings were subjected to experimental flooding regimes typical of floodplain forests in rural and urban settings. Growth rates of seedlings varied over time and differed depending on species and treatment. Created microtopography resulted in a spatially heterogeneous system similar to that of natural bottomlands and strongly influenced hydrology, soil properties, survival of planted seedlings, and abundance and distribution of colonizing species. Proper bottomland restoration in urbanizing environments should include species selection based on current and potential future hydrologic conditions. In addition, restoring microtopography may improve survival of a variety of species introduced during restoration, as well as enhance colonization of a diverse plant community under changing hydrologic regimes. Trends indicated a slight improvement in attitude and performance for students that used GIS. More important, the authenticity of the experience appeared to affect student attitude. The effective use of GIS in teaching may be scale-dependent. Smallscale phenomena may be assessed as easily in a field exercise as with GIS. Using GIS to assess large-scale, complex patterns may have a substantial impact on student understanding. Further studies are needed to determine direct benefits of teaching with GIS in undergraduate ecology classrooms.
Book Synopsis Evaluating Ecological Restoration in Tennessee Hardwood Bottomland Forests by :
Download or read book Evaluating Ecological Restoration in Tennessee Hardwood Bottomland Forests written by and published by . This book was released on 2010 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardwood bottomland ecosystems provide critical habitat for various wildlife among numerous ecosystem services. Since the 1800s, these forested wetlands have been logged and drained for agriculture. The federal government passed a series of legislative acts that protected wetlands and provided monetary support for restoration. The Wetlands Reserve Program (WRP) was established in 1990 with the goal of restoring ecological function in wetlands. Although several studies have measured plant and wildlife responses to WRP restorations, no standard protocol has been developed to monitor the state of ecological restoration at sites. Index of biotic integrity (IBI) models are commonly used to evaluate ecological function by assigning scores derived from biological characteristics measured at disturbed sites and comparing them with reference sites. Therefore, the objectives of my study were to: (1) characterize vegetation, amphibian and bird communities among 17 WRP restoration and 4 reference bottomland sites, and (2) develop IBI models for these communities to use in monitoring ecological restoration. My study was conducted across 10 counties in western Tennessee from March - August 2008, and communities were measured using standard sampling techniques. I detected 15 amphibian and 95 bird species at bottomland WRP sites, which ranged 2 - 21 years old. Anurans were common among sites, but salamanders were only detected at reference sites containing mature forests. The bird community changed predictably in response to succession, with grassland birds dominating young restoration sites and scrub-shrub and forest birds dominating older restoration and reference sites. Vegetation structure was related to site age, and a good predictor of bird community composition. Variables retained in the vegetation IBI model included density of snags, logs and overstory trees, basal area, and percent vertical cover measured using a profile board. The bird IBI model contained relative abundance of bark feeding, branch nesting, and twig nesting guilds. Presence of salamanders was the only variable in the amphibian IBI model. My results indicate that the WRP is contributing to the regional biodiversity of western Tennessee. The IBI models that I developed can be used for monitoring ecological restoration in Tennessee hardwood bottomlands; however, their applicability outside this region should be validated.
Book Synopsis Preliminary Study of Forest Conditions in Tennessee by : R. Clifford Hall
Download or read book Preliminary Study of Forest Conditions in Tennessee written by R. Clifford Hall and published by . This book was released on 1910 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Economic Incentives to Preserve Bottomland Hardwood Forests by : William C. Goolsby
Download or read book Economic Incentives to Preserve Bottomland Hardwood Forests written by William C. Goolsby and published by . This book was released on 1983 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Study of Forest Conditions in Tennessee by : R. Clifford Hall
Download or read book Preliminary Study of Forest Conditions in Tennessee written by R. Clifford Hall and published by . This book was released on 1910 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of the Habitat Evaluation System to Modeling Bottomland Hardwood Forest Communities in West Tennessee by : Daryl Durham
Download or read book Application of the Habitat Evaluation System to Modeling Bottomland Hardwood Forest Communities in West Tennessee written by Daryl Durham and published by . This book was released on 1988* with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Headcutting on the Bottomland Hardwood Wetlands Adjacent to the Wolf River, Tennessee by :
Download or read book Effects of Headcutting on the Bottomland Hardwood Wetlands Adjacent to the Wolf River, Tennessee written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wolf River in western Tennessee has experienced severe channel erosion in the form of headcutting and downcutting that has extended 17 kilometers upstream from the location at which channelization ceased in 1964. Due to wider and deeper channel dimensions in this reach, the river no longer inundates the floodplain. This technical note describes a study to determine how this hydrologic change has affected the bottomland hardwood (BLH) wetlands adjacent to the Wolf River. Specific objectives were to compare shallow groundwater levels, herbaceous community composition, and growth patterns of Quercus phellos L. in wetlands adjacent to headcut and reference portions of the channel. The study also will provide quantitative baseline data for further research and for monitoring the progress or success of any future restoration programs. (4 tables, 4 figures, 37 refs.).
Book Synopsis Effects of Headcutting on the Bottomland Hardwood Wetlands Adjacent to the Wolf River, Tennessee by : Karen Weins
Download or read book Effects of Headcutting on the Bottomland Hardwood Wetlands Adjacent to the Wolf River, Tennessee written by Karen Weins and published by . This book was released on 2003 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Variation of Hydrology in Nonrivierine Wet Hardwood Forests and the Implications for Restoration by :
Download or read book Natural Variation of Hydrology in Nonrivierine Wet Hardwood Forests and the Implications for Restoration written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetland restoration projects across the United States are failing. Restored sites commonly lack the species and hydrology of the targeted community being restored. A better understanding of natural wetlands would help restoration project designers achieve community composition and hydrologic regimes that more closely resemble natural conditions. I investigated two different methods to identify patterns in hydrologic regime useful to restoration design. The first method was based on success criteria commonly used by North Carolina wetland mitigation projects. The second method was based on The Nature Conservancyââ'¬â"¢s Indicators of Hydrologic Alteration. In order to test these two methods, I collected hydrologic and compositional data across the natural variation of nonriverine wet hardwood forest stands, a rare wetland community type commonly restored in North Carolina. My results show that hydrologic parameters from the first method, based on current success criteria used in North Carolina, are not related to community composition. Hydrologic parameters from the second method, e.g. the maximum water table level over a 3-day span, explained much of the variation in nonriverine wet hardwood forest community composition. My results found that clear relationships do exist between hydrologic regime and community composition. Hydrologic parameters that are related to community composition need to be used as success criteria in future restoration designs. This will ensure that projects establish the appropriate hydrologic regime necessary to foster the desired wetland community type.
Book Synopsis Development of the West Tennessee Bottomland Hardwood Habitat Evaluation System Model by : Daryl B. Durham
Download or read book Development of the West Tennessee Bottomland Hardwood Habitat Evaluation System Model written by Daryl B. Durham and published by . This book was released on 1987 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantifying Bottomland Hardwood Forest and Agricultural Grassland Evapotranspiration in Floodplain Reaches of a Mid Missouri Stream by : Keith Michael Brown (Forestry researcher)
Download or read book Quantifying Bottomland Hardwood Forest and Agricultural Grassland Evapotranspiration in Floodplain Reaches of a Mid Missouri Stream written by Keith Michael Brown (Forestry researcher) and published by . This book was released on 2013 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bottomland hardwood forests (BHF) play an important role in floodplain dynamics, particularly along urban streams where flood mitigation is critical to protecting human life and property. Enhanced evapotranspiration (ET) of riparian floodplain forests could help reduce flooding through drying of soils and improved absorption of overland flows. Quantifying BHF ET is essential for characterizing hydrological benefits of riparian forest consumptive water use. A bottomland hardwood forest (BHF) and Agricultural Grassland (AG) were instrumented with microclimate stations and WY 2012 ET was estimated six out of seven methods of ET calculation show higher rates of ET in BHF than AG, within the Hinkson Creek Floodplain. Widely applied methods of ET calculation estimated BHF ET to be from 802mm yr-1 (P-M) to 975mm yr-1 (SEB). Agricultural grassland site ET values were estimated to be 720mm yr-1 (SEB) and 719mm yr-1 (P-M). The difference of these ET estimates between the BHF and AG sites respectively yield an additional 83mm yr-1 to 255mm yr-1 of soil moisture consumed. Coupled with the increased infiltration capacity of forest soils the enhanced evapotranspiration of bottomland forests could play a role in ameliorating flood events.
Book Synopsis The Ecology of Bottomland Hardwood Swamps of the Southeast by : Charles H. Wharton
Download or read book The Ecology of Bottomland Hardwood Swamps of the Southeast written by Charles H. Wharton and published by . This book was released on 1982 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Riparian Areas by : National Research Council
Download or read book Riparian Areas written by National Research Council and published by National Academies Press. This book was released on 2002-10-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Book Synopsis Restoration of Aquatic Ecosystems by : National Research Council
Download or read book Restoration of Aquatic Ecosystems written by National Research Council and published by National Academies Press. This book was released on 1992-01-01 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
