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Modeling Percent Shrub Canopy Cover And Bare Ground
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Book Synopsis Modeling Percent Shrub Canopy Cover and Bare Ground by :
Download or read book Modeling Percent Shrub Canopy Cover and Bare Ground written by and published by . This book was released on 2014 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of geospatial data reflecting current amounts of tree, shrub, herbaceous, bare-ground and water cover is key to improving the USDA Forest Service's capacity to manage land. We assessed the use of image-sampled tree, shrub, herbaceous, bare ground and water estimates from National Agriculture Imagery Program (NAIP) data for constructing empirical models to estimate and map vegetation composition at unmeasured locations. While particular focus was on percent shrub cover and bare ground, predictive models were constructed for all five cover types in order to look at the potential benefit of a more integrated approach for modeling these different cover types. Two different modeling methods were explored: 1) a univariate approach based on random forests, and 2) a multivariate approach based on bootstrap nearest neighbors. Under both modeling approaches the rank order of model accuracy, according to pseudo-R2, was water, tree, herbaceous, other cover, shrub, and bare ground. Generally, the pseudo-R2 values for the two approaches were similar for each cover type. Unfortunately the shrub and bare ground cover types proved to be the most difficult to model (R2 was 0.37 for shrub and 0.27 for bare ground). Alone, these modeling results for shrub and bare ground may not be adequate for spatially explicit management purposes, but when created in conjunction with other cover types (which have higher R2 values) they may have more merit. This is particularly true for analysis applications that evaluate multiple land cover types concurrently and require area estimates and maps that are analytically consistent and logically sum to realistic totals.
Book Synopsis Modeling Change in Potential Landscape Vulnerability to Forest Insect and Pathogen Disturbances by :
Download or read book Modeling Change in Potential Landscape Vulnerability to Forest Insect and Pathogen Disturbances written by and published by . This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The assessment area included the portion of the Columbia River basin occurring in the United States, east of the crest of the Cascade Range. Subbasins in the upper reaches of the Klamath River basin and the northern Great Basin were also included in order to fully represent conditions in eastern Oregon and Washington, Idaho, and western Montana.
Book Synopsis Land Resources Monitoring, Modeling, and Mapping with Remote Sensing by : Ph.D., Prasad S. Thenkabail
Download or read book Land Resources Monitoring, Modeling, and Mapping with Remote Sensing written by Ph.D., Prasad S. Thenkabail and published by CRC Press. This book was released on 2015-10-02 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume in the three-volume Remote Sensing Handbook series, Land Resources Monitoring, Modeling, and Mapping with Remote Sensing documents the scientific and methodological advances that have taken place during the last 50 years. The other two volumes in the series are Remotely Sensed Data Characterization, Classification, and Accuracies, and Remo
Download or read book COVER written by Melinda Moeur and published by . This book was released on 1985 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The COVER extension to the Stand Prognosis Model predicts tree canopy closure, crown volume, crown profile area, and foliage biomass within vertical height classes, and the probability of occurrence, height, and cover of shrubs in forest stands. The model may be used to produce a descriptive summary of a stand at the time of inventory, or to project overstory and understory characteristics through time for natural and managed stands. This paper documents use of the COVER program, an adjunct to Version 5.0 of the Prognosis Model. Preparation of input, interpretation of output, program control, and model characteristics are described. Potential applications of COVER estimates to wildlife, hydrology, and insect pest modeling are presented.
Book Synopsis Habitat Suitability Index Models by : Deborah M. Finch
Download or read book Habitat Suitability Index Models written by Deborah M. Finch and published by . This book was released on 1987 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Remote Sensing Handbook - Three Volume Set by : Prasad Thenkabail
Download or read book Remote Sensing Handbook - Three Volume Set written by Prasad Thenkabail and published by CRC Press. This book was released on 2018-10-03 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume in the three-volume Remote Sensing Handbook series, Remote Sensing of Water Resources, Disasters, and Urban Studies documents the scientific and methodological advances that have taken place during the last 50 years. The other two volumes in the series are Remotely Sensed Data Characterization, Classification, and Accuracies, and Land Reso
Book Synopsis Integrating Ecosystem Sampling, Gradient Modeling, Remote Sensing, and Ecosystem Simulation to Create Spatially Explicit Landscape Inventories by : Robert E. Keane
Download or read book Integrating Ecosystem Sampling, Gradient Modeling, Remote Sensing, and Ecosystem Simulation to Create Spatially Explicit Landscape Inventories written by Robert E. Keane and published by . This book was released on 2002 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitat Suitability Index Models by : Richard L. Schroeder
Download or read book Habitat Suitability Index Models written by Richard L. Schroeder and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Office of the Assistant Secretary of the Army (Civil Works) Publisher : ISBN 13 : Total Pages :942 pages Book Rating :4.F/5 ( download)
Book Synopsis Truckee Meadows, Nevada by : United States. Office of the Assistant Secretary of the Army (Civil Works)
Download or read book Truckee Meadows, Nevada written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 2015 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bird Conservation Implementation and Integration in the Americas by :
Download or read book Bird Conservation Implementation and Integration in the Americas written by and published by . This book was released on 2005 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Fire and Fuels Extension to the Forest Vegetation Simulator by : Elizabeth D. Reinhardt
Download or read book The Fire and Fuels Extension to the Forest Vegetation Simulator written by Elizabeth D. Reinhardt and published by . This book was released on 2003 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fire and Fuels Extension (FFE) to the Forest Vegetation Simulator (FVS) simulates fuel dynamics and potential fire behavior over time, in the context of stand development and management. Existing models of fire behavior and fire effects were added to FVS to form this extension. New submodels representing snag and fuel dynamics were created to complete the linkages. This report contains four chapters. Chapter 1 states the purpose and chronicles some applications of the model. Chapter 2 details the model's content, documents links to the supporting science, and provides annotated examples of the outputs. Chapter 3 is a user's guide that presents options and examples of command usage. Chapter 4 describes how the model was customized for use in different regions. Fuel managers and silviculturists charged with managing fire-prone forests can use the FFEFVS and this document to better understand and display the consequences of alternative management actions.
Book Synopsis Percent Canopy Cover and Stand Structure Statistics from the Forest Vegetation Simulator by : Nicholas L. Crookston
Download or read book Percent Canopy Cover and Stand Structure Statistics from the Forest Vegetation Simulator written by Nicholas L. Crookston and published by . This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FWS/OBS-82/10 written by and published by . This book was released on 1984 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rogue River and Klamath National Forests (N.F.), Mt. Ashland Ski Area Expansion by :
Download or read book Rogue River and Klamath National Forests (N.F.), Mt. Ashland Ski Area Expansion written by and published by . This book was released on 2004 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Forest Scenic Beauty by : Thomas Capnor Brown
Download or read book Modeling Forest Scenic Beauty written by Thomas Capnor Brown and published by . This book was released on 1984 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical models are presented which relate near-view scenic beauty of ponderosa pine stands in the Southwest to variables describing physical characteristics. The models suggest that herbage and large ponderosa pine contribute to scenic beauty, while numbers of small and intermediate-sized pine trees and downed wood, especially as slash, detract from scenic beauty. Areas of lower overstory density and less tree clumping were preferred. Moderate harvest of relatively dense stands tends to improve scenic beauty once the stand has recovered from obvious harvest effects. The recovery period can be greatly reduced by slash cleanup.
Book Synopsis Hillslope Processes by : A.D. Abrahams
Download or read book Hillslope Processes written by A.D. Abrahams and published by Routledge. This book was released on 2020-05-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 1986, collects the articles presented to the 16th Binghamton Geomorphology Symposium and is a ground-breaking work in the study of hillslope processes. Hillslope processes are studied in a variety of disciplines other than geomorphology, such as hydrology, pedology, agricultural engineering, civil engineering and engineering geology – the study is truly an interdisciplinary science.
