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Pilot Study For Wetlands Inventory
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Book Synopsis Pilot Study for Wetlands Inventory by : Eugene E. Best
Download or read book Pilot Study for Wetlands Inventory written by Eugene E. Best and published by . This book was released on 1963 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pilot Study for Wetlands Inventory in South Dakota - 1960 by : Maurice E. Anderson
Download or read book Pilot Study for Wetlands Inventory in South Dakota - 1960 written by Maurice E. Anderson and published by . This book was released on 1961 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crosswalking National Wetland Inventory Attributes to Hydrogeomorphic Functions and Vegetation Communities: a Pilot Study in the Gallatin Valley, Montana by : Linda Vance
Download or read book Crosswalking National Wetland Inventory Attributes to Hydrogeomorphic Functions and Vegetation Communities: a Pilot Study in the Gallatin Valley, Montana written by Linda Vance and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crosswalking National Wetland Inventory Attributes to Hydrogeomorphic Functions and Vegetation Communities by : Katherine Vance
Download or read book Crosswalking National Wetland Inventory Attributes to Hydrogeomorphic Functions and Vegetation Communities written by Katherine Vance and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wetland and Riparian Mapping Center of the Montana Natural Heritage Program has recently begun new National Wetland Inventory (NWI) mapping for Montana. The present study was a pilot project to investigate ways to enhance the new mapping through additional classifications and modifiers. Specifically, our goals were to evaluate GIS-based approaches to Hydrogeomorphic (HGM) classification and profiling, conduct an HGM functional assessment of the Gallatin Valley study area based on these classifications and profiles; establish a crosswalk between NWI classifications, HGM classifications, and vegetation associations; determine whether these additional classifications and associations could be efficiently linked with the National Wetland Inventory in future mapping. Using existing NWI and geospatial data for soils, elevation, and hydrology, we developed a dichotomous key that could assign HGM classes to approximately 85% of the wetland polygons in the study area with 90% accuracy, as determined by visual inspection of the wetlands on 1-meter color imagery. The remaining wetland polygons were classified manually. We used a total of 32 HGM classifications, 17 for unaltered wetlands and 15 for altered wetlands. Nearly 85% of the wetland acreage in the study area is classified as Lotic. Lotic wetland acreage is concentrated in the Gallatin River-Gallatin Gateway (47%) and Lower East Gallatin (25%) watersheds, which contain the main Gallatin River and East Gallatin River channels. Smaller proportions are found in the Smith Creek (10%) and Hyalite Creek (9%) watersheds. Terrene wetland acreage is most plentiful in the Lower East Gallatin (41%) and Smith Creek (27%) watersheds. In the study area as a whole, NWI mapping from the 1980s shows less than 8% of the total wetland acreage as being directly altered. However, when wetland numbers are considered, almost 17% of wetlands were altered in some way. Although 85% of all the wetland acreage in the study area is Lotic, 72% of the altered wetland acreage is Terrene. We used Principal Components Analysis to separate the 5th code HUCs into impact categories, evaluating road density, land cover, population density, septic density, average parcel size, percentage of private land ownership, percentage of public ownership and easements, and percentage of public land survey sections with one or more noxious weeds. The watersheds with the highest impact rankings were the Lower East Gallatin, Hyalite Creek, and the Upper East Gallatin. Together, these watersheds hold 87% of Terrene Interfluve Basin wetlands, 71% of Terrene Interfluve Flat wetlands, and 33% of Terrene Basin wetlands. Because these types of wetlands have high function ratings for nutrient cycling, sediment trapping, aquatic and terrestrial habitat, and wetland biodiversity, we consider those functions to be at risk both within those watersheds and across the study area as a whole. Similarly, those three watersheds contain almost 40% of Lotic River Lower Gradient Floodplain wetlands, 36% of Lotic River Lower Gradient Fringe Wetlands, and 39% of Lotic Stream Lower Gradient Floodplain wetlands. Because these wetland types exist in other, somewhat less impacted watersheds (notably the Gallatin River-Gallatin Gateway and Lower Gallatin), their specific functions (surface water detention, stream maintenance, and plant community maintenance) are at least moderately at risk in the study area. Furthermore, because these Lotic types, like the Terrene types, also have high function ratings for sediment trapping and aquatic/terrestrial habitat, those functions may be especially compromised in these three watersheds. From our field-based surveys and the GIS, we linked National Vegetation Classification System vegetation associations, Montana riparian types, and HGM-derived ecological functions to NWI types in the Gallatin Valley, so users could relate NWI classifications to detailed information useful for planning and management. These associations are complex. A specific NWI type typically encompasses several vegetation associations, but the relationship is usually understandable if past disturbances and regional environmental conditions are considered. NWI associations with HGM modifiers and ecological functions are similarly complex with a one-to-many relationship common. We recommend that mapping in new areas continues to associate vegetation types with USFWS types, since the comprehensive, readily available information about these vegetation types will help those seeking to better understand or manage wetlands. Despite our success with a GIS approach to adding HGM attributes to NWI types, we have not evaluated it beyond the study area, and therefore cannot say whether it offers a cost and time savings over individually classifying each polygon by hand. However, we recommend linking functions to NWI types continues in some form. Wetlands are valued (and regulated) because of their functions and associated values; connecting mapping with functions will aid wetland mitigation, restoration, conservation, and management.
Book Synopsis Wisconsin Wetlands Inventory Pilot Mapping Program by : Earth Satellite Corporation
Download or read book Wisconsin Wetlands Inventory Pilot Mapping Program written by Earth Satellite Corporation and published by . This book was released on 1975 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Natural Heritage Assessment and Inventory of State Wildlife Area Wetlands by :
Download or read book A Natural Heritage Assessment and Inventory of State Wildlife Area Wetlands written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technique for Wetland Mapping written by and published by . This book was released on 1979 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Wetlands Inventory Products by :
Download or read book National Wetlands Inventory Products written by and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wetlands Inventory written by and published by . This book was released on 1964 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Reconnaissance of Four Wetland Pilot Study Areas by : K. Paijmans
Download or read book A Reconnaissance of Four Wetland Pilot Study Areas written by K. Paijmans and published by . This book was released on 1978 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Correlating Enhanced National Wetlands Inventory Data with Wetland Functions for Watershed Assessments by : U. S. Fish and Wildlife Service
Download or read book Correlating Enhanced National Wetlands Inventory Data with Wetland Functions for Watershed Assessments written by U. S. Fish and Wildlife Service and published by CreateSpace. This book was released on 2013-04-19 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the mid-1990s, a set of hgm-type descriptors were developed to describe a wetland's landscape position, landform, and water flow path (Tiner 1995, 1996a, b). Use of the initial set of keys for pilot watershed projects lead to a refinement and expansion of the keys in subsequent years (Tiner 1997a, 2000, 2002, 2003). These projects were watershed characterizations that included a preliminary assessment of wetland functions as a main component or the prime component of the study. The reports addressed the following watersheds: Casco Bay (Maine; Tiner et al. 1999), Nanticoke River (Maryland and Delaware; Tiner et al. 2000, 2001), Coastal Bays (Maryland; Tiner et al. 2000), and Cannonsville and Neversink Reservoirs (New York; Tiner et al. 2002), as well as the Pennsylvania Coastal Zone (Tiner and DeAlessio 2002)
Book Synopsis National Wetlands Inventory Information and Legend for Large Scale Draft and Topical Wetland Overlays by :
Download or read book National Wetlands Inventory Information and Legend for Large Scale Draft and Topical Wetland Overlays written by and published by . This book was released on 1977 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural History Theme Studies written by and published by . This book was released on 1975 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wetland Inventory and Resource Modeling for Douglas and Carson City Counties, Nevada, Using Landsat and Digital Terrain Data by : James A. Brass
Download or read book Wetland Inventory and Resource Modeling for Douglas and Carson City Counties, Nevada, Using Landsat and Digital Terrain Data written by James A. Brass and published by . This book was released on 1983 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Plan for Monitoring Wetland Ecosystems by : Nancy C. Leibowitz
Download or read book Research Plan for Monitoring Wetland Ecosystems written by Nancy C. Leibowitz and published by . This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report for Wetlands Reconnaissance/inventory, Mid-Pacific Region by :
Download or read book Report for Wetlands Reconnaissance/inventory, Mid-Pacific Region written by and published by . This book was released on 1993 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Digital Method to Inventory Converted Wetlands by : Kara M. Dunning
Download or read book A Digital Method to Inventory Converted Wetlands written by Kara M. Dunning and published by . This book was released on 1996 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: