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  7. Stream Reaches for Geospatial Condition Assessment of Northeast Stream and River Habitat Types

Stream Reaches for Geospatial Condition Assessment of Northeast Stream and River Habitat Types

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Citation

2013-05-13, Stream Reaches for Geospatial Condition Assessment of Northeast Stream and River Habitat Types: .

Summary

The objective of this study was to provide a set of useful condition attributes for perennial stream and river segment in the northeast states (ME, NH, VT, MA, RI, CT, NY, PA, NJ, DE, MD, VA, WV, and DC.). Only perennial streams and rivers with catchments of one square mile or larger as mapped in the NHD Plus 1:100,000 Verson 1 dataset were included in this analysis because smaller streams were too inconsistently mapped. Stream and river reach flowlines were taken from the NHD Plus V1 1:100,000 dataset and tagged with geographic units (watersheds, states, ecoregions) and their simplified stream and river habitat types (23 types) as defined in the "Northeast Habitat Guides: A companion to the terrestrial and aquatic habitat maps" (Anderson [...]

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Point of Contact :
Eastern Division Conservation Science of The Nature Conservancy

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Stream_Reaches_md.xml
Original FGDC Metadata
View 		35.38 KB application/fgdc+xml
Extension: Riparian_index.zip
Riparian_index.sd 63.91 MB
thumbnail.png thumbnail 23.61 KB

Purpose

This study evaluated consistently across a large geographic area of 13 northeast states the following condition attributes for perennial streams and rivers: riparian secured land, riparian land cover, total upstream impervious surfaces, local catchment terrestrial connectivity, local catchment landscape context index, local catchment predicted development in 2060, number and types of dams, upstream dam water volume storage as a percent of mean annual flow, network length between dams, and number of road stream crossings. These attributes were chosen because of their importance to key riverine ecological processses and their large effects on hydrologic alteration, loss of connectivity, and deteriorating water quality due to intensifying urbanization and agriculture.
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  • LC MAP - Landscape Conservation Management and Analysis Portal
  • North Atlantic Landscape Conservation Cooperative

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