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ROOT _ScienceBase Catalog __LC MAP - Landscape Conservation Management and Analysis Portal ___Great Plains Landscape Conservation Cooperative ____Projects _____FY 2013 Science Research Projects ______Use of LIDAR to Assess the Effectiveness of Grass Plantings and Buffers on Playa Natural Inundation and Sedimentation Control in the Rainwater Basin Filters
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ESRI file geodatabase containing LiDAR derived watershed boundaries for Rainwater Basin Wetalnds.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Data,
Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Sediment accumulation in playa wetlands, such as those in the Rainwater Basin in south-central Nebraska, reduces the hydrologic functionality and alters the vegetative composition of the wetlands reducing their ability to provide forage and resting habitat for migratory birds. Most Rainwater Basin wetlands have intense agricultural production occuring within their watersheds that accelerate sediment accumulation within the wetland. This sediment accumulation reduced the abilty of the wetland to hold water which, in turn, allows invasive and upland plants to proliferate with the wetland footprint. Planting upland grassland buffers around wetlands reduces the sediment load entering the wetland reducing the need...
With extraordinary resolution and accuracy, Light Detection and Ranging (LiDAR)-derived digital elevation models (DEMs) have been increasingly used for watershed analyses and modeling by hydrologists, planners and engineers. Such high-accuracy DEMs have demonstrated their effectiveness in delineating watershed and drainage patterns at fine scales in low-relief terrains. However, these high-resolution datasets are usually only available as topographic DEMs rather than hydrologic DEMs, presenting greater land roughness that can affect natural flow accumulation. Specifically, locations of drainage structures such as road culverts and bridges were simulated as barriers to the passage of drainage. This paper proposed...
Categories: Data,
Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Great Plains,
Maps depicting the LiDAR derived watersheds, flowlines, and drainages with comparison to previously known watershed extents.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Great Plains Landscape Conservation Cooperative,
Maps depicting the LiDAR derived watersheds, flowlines, and drainages with comparison to previously known watershed extents.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Great Plains Landscape Conservation Cooperative,
Maps depicting the soil erosion potential modeled for Rainwater Basin Wetland Watersheds using the Revised Universal Soil Loss Equation 2.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Great Plains Landscape Conservation Cooperative,
Inundation is a critical parameter of wetland hydrologic performance. This study uses Annual Habitat Survey data from 2004 to 2012 in the Rainwater Basin in south-central Nebraska to examine differences between the actual inundation conditions and three datasets: the National Wetland Inventory (NWI), the Soil Survey Geographic database (SSURGO), and LiDAR-derived depressions. The results show that current wetland inundated areas were well overlaid with these datasets (99.9% in SSURGO data, 67.9% in NWI data, and 87.3;% in LiDAR-derived depressions). However, the hydrologic degradation of playa wetlands was not reflected in these datasets. In SSURGO data, only 13.3% of hydric soil footprint areas were inundated and...
Categories: Data,
Publication;
Types: Citation,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
GPLCC,
GPLCC,
Great Plains,
Great Plains Landscape Conservation Cooperative,
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