Download or read book Vegetation Measurements in Sagebrush Steppe Using Terrestrial Laser Scanning written by Kyle Anderson and published by . This book was released on 2014 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Sagebrush Aboveground Biomass Using Terrestrial Laser Scanning TLS written by Peter J. Olsoy and published by . This book was released on 2013 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aboveground biomass estimation of sagebrush (Artemisia tridentata) is essential for assessing habitat quality of threatened species, modeling vegetation dynamics from climate change, and modeling pre-fire fuel loads as well as post-fire succession. This research used terrestrial laser scanning (TLS) derived volume estimates as a proxy parameter for sagebrush aboveground biomass. Voxel and convex hull point cloud analysis methods, coupled with field-based data, were used to derive biomass. The results were used to compare with a field-based method, point-intercept sampling, and to monitor changes in biomass across seasons. Results from sampling at three sites across the Snake River Plain indicated that TLS-derived volumes can be used to measure seasonal differences in plant production. The convex hull volume explained 5% more variation in total biomass (R2 = 0.92) and 14% more variation in green biomass (R2 = 0.84) than the voxel volume. The results indicate TLS-derived point cloud data of sagebrush can be used to accurately approximate aboveground biomass.
Download or read book 3D Remote Sensing Applications in Forest Ecology written by Hooman Latifi and published by MDPI. This book was released on 2019-11-19 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dear Colleagues, The composition, structure and function of forest ecosystems are the key features characterizing their ecological properties, and can thus be crucially shaped and changed by various biotic and abiotic factors on multiple spatial scales. The magnitude and extent of these changes in recent decades calls for enhanced mitigation and adaption measures. Remote sensing data and methods are the main complementary sources of up-to-date synoptic and objective information of forest ecology. Due to the inherent 3D nature of forest ecosystems, the analysis of 3D sources of remote sensing data is considered to be most appropriate for recreating the forest’s compositional, structural and functional dynamics. In this Special Issue of Forests, we published a set of state-of-the-art scientific works including experimental studies, methodological developments and model validations, all dealing with the general topic of 3D remote sensing-assisted applications in forest ecology. We showed applications in forest ecology from a broad collection of method and sensor combinations, including fusion schemes. All in all, the studies and their focuses are as broad as a forest’s ecology or the field of remote sensing and, thus, reflect the very diverse usages and directions toward which future research and practice will be directed.
Download or read book Assessing New Methods for Measuring Forest Understorey Vegetation Using Terrestrial Laser Scanning written by Joseph Ryding and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hyperspectral Remote Sensing of Vegetation Second Edition Four Volume Set written by Prasad S. Thenkabail and published by CRC Press. This book was released on 2022-07-30 with total page 1637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading global experts, including pioneers in the field, the four-volume set on Hyperspectral Remote Sensing of Vegetation, Second Edition, reviews existing state-of-the-art knowledge, highlights advances made in different areas, and provides guidance for the appropriate use of hyperspectral data in the study and management of agricultural crops and natural vegetation. Volume I, Fundamentals, Sensor Systems, Spectral Libraries, and Data Mining for Vegetation introduces the fundamentals of hyperspectral or imaging spectroscopy data, including hyperspectral data processes, sensor systems, spectral libraries, and data mining and analysis, covering both the strengths and limitations of these topics. Volume II, Hyperspectral Indices and Image Classifications for Agriculture and Vegetation evaluates the performance of hyperspectral narrowband or imaging spectroscopy data with specific emphasis on the uses and applications of hyperspectral narrowband vegetation indices in characterizing, modeling, mapping, and monitoring agricultural crops and vegetation. Volume III, Biophysical and Biochemical Characterization and Plant Species Studies demonstrates the methods that are developed and used to study terrestrial vegetation using hyperspectral data. This volume includes extensive discussions on hyperspectral data processing and how to implement data processing mechanisms for specific biophysical and biochemical applications such as crop yield modeling, crop biophysical and biochemical property characterization, and crop moisture assessments. Volume IV, Advanced Applications in Remote Sensing of Agricultural Crops and Natural Vegetation discusses the use of hyperspectral or imaging spectroscopy data in numerous specific and advanced applications, such as forest management, precision farming, managing invasive species, and local to global land cover change detection.
Download or read book Spatial Modelling and Failure Analysis of Natural and Engineering Disasters through Data based Methods Volume II written by Faming Huang and published by Frontiers Media SA. This book was released on 2023-08-01 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide for Quantifying Post treatment Fuels in the Sagebrush Steppe and Juniper Woodlands of the Great Basin written by Andrea Stebleton and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species and woodland encroachment have caused extensive changes in the fire regimes of sagebrush steppe over the past 150 years. Land managers and resource specialists of the Great Basin are increasingly required to implement vegetation treatments to maintain habitat, reduce fire risk and restore landscapes to a more desirable state. Often it is difficult to measure treatment effectiveness because gathering pre- and post-treatment data is time-consuming and costly. In two years of post-treatment sampling across six Great Basin states, researchers from the Sagebrush Steppe Treatment and Evaluation Project (SageSTEP) measured the vegetation response to prescribed fire, tree mastication and cutting, shrub mowing, and herbicide application. Treated plots were compared to untreated control plots.
Download or read book Guide for Quantifying Post treatment Fuels in the Sagebrush Steppe and Juniper Woodlands of the Great Basin written by Andrea Bourne and published by . This book was released on 2011 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three Dimensional Estimation of Vegetation Moisture Content Using Dual wavelength Terrestrial Laser Scanning written by Ahmed Mohamed Abouelella Elsherif and published by . This book was released on 2020 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of a Remote Sensing based Model for Monitoring the Condition of Natural Sagebrush Steppe Rangelands in Southern Idaho written by Karen Sue Olmstead and published by . This book was released on 2003 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sagebrush Steppe Vegetation Monitoring in Craters of the Moon National Monument and Preserve and City of Rocks National Reserve 2010 Annual Report written by National Park National Park Service and published by CreateSpace. This book was released on 2013-10-08 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to European colonization, sagebrush steppe covered approximately 44 million ha of the Intermountain West, the vast areas of land between the Rocky Mountains and the Cascades and Sierra Nevada mountain ranges (West and Young 2000). Since then the sagebrush steppe ecosystem has experienced extensive changes (USDA Forest Service 1996, West and Young 2000, Bureau of Land Management 2002, Reid et al. 2002). Substantial portions of the region have been converted to agriculture and development (West and Young 2000, Bunting et al. 2002). Much of the remaining sagebrush steppe has been degraded through overgrazing by livestock, altered fire regimes, and invasion of introduced plants (Reid et al. 2002).
Download or read book Using Remote Sensing to Map Sagebrush Steppe Ecosystems written by and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disturbance Vegetation Co occurrence and Human Intervention as Drivers of Plant Species Distributions in the Sagebrush Steppe written by Fiona Claire Schaus Noonan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Changes in fire regimes, invasive species dynamics, human land use, and drought conditions have shifted important plant species in the Northern Great Basin (NGB)—including big sagebrush (Artemisia tridentata ssp.), conifers (e.g., Juniperus spp.) and invasive annual grasses (e.g., Bromus tectorum). Characterizing how these overlapping disturbances influence species distributions is critical for land management decision-making. Previous research has explored the individual effects of drought, wildfire, restoration, and invasive species on sagebrush steppe communities, but the specific effects of these disturbances in context with one another remain poorly understood at a landscape scale. To address this gap, I constructed multilevel conditional autoregressive (CAR) species distribution models (SDMs) to map the distributions of big sagebrush, juniper, and cheatgrass on lands managed for grazing in the NGB, both with and without a history of fire. These models illuminate the concurrent influences of species co-occurrences, drought, wildfire characteristics (e.g., fire size, time since fire, and number of fires), and restoration treatments. For all SDMs, results indicate that species co-occurrence exhibits the strongest effect—between 1.23 and 19.2 times greater than the next strongest predictor—on all species’ probability of occurrence, suggesting that vegetation co-occurrence meaningfully influences landscape-scale species distributions. In portions of the NGB both with and without historical fire, number of fires and maximum vapor pressure deficit (VPD) also exert substantial influence on the likelihood of species presence, and results indicate that restoration treatments have broadly met desired outcomes for both sagebrush and juniper Narrowing down to only areas that have previously burned, however, models do not support the efficacy of post-fire restoration. All versions of the SDMs, which rely on Bureau of Land Management-administered grazing allotments as a spatial varying intercept, also explicitly point to the differential influence of long-term management regimes on species distributions. These model predictions capture post-disturbance vegetation outcomes under changing fire, climate, and invasive species regimes and in the context of human decision-making, in turn defining a plausible ecological space as these disturbance and management processes play out into the future."--Boise State University ScholarWorks.
Download or read book Long term Vegetation Dynamics and Post fire Establishment Patterns of Sagebrush Steppe written by Elizabeth C. Colket and published by . This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods for Improving Re vegetation Success in the Sagebrush Steppe Using Solid Matrix Priming and Seed Extrusion Technology written by Samuel J. Price and published by . This book was released on 2019 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a need to develop cost-effective techniques for re-establishing native vegetation on degraded sagebrush (Artemesia spp. L.) steppe ecosystems. In this study, we evaluate the use of solid matrix priming (SMP) and extruded seed pellets as technologies for improving re-vegetation success within the sagebrush steppe for three native bunchgrass species: bluebunch wheatgrass (Pseudoroegneria spicata, PSSP6), Idaho fescue (Festuca idahoensis, FEID), and prairie junegrass (Koeleria macrantha, KOMA). This involved: 1) the formulation of seed priming medium, 2) the incorporation of priming medium and native seed into pellets designed for transportation and subsequent planting for re-vegetation purposes, 3) the determination of optimal seed priming durations at two water potentials (-0.7 & -1.0 MPa), and 4) a comparison of total emergence and time to 10, 25, and 50% emergence for primed seeds vs. non-primed seeds. Primed pelleted treatments for FEID and PSSP6 showed increases in total emergence within the first seven days compared to non-primed pellets. By day seven, FEID and PSSP6 primed pelleted emergence was 8.4-22 and 31.6-58.5 seedlings, and non-primed pellet emergence was 0.2-6.8 and 19.3-31 seedlings (P
Download or read book Shrub steppe written by Pacific Northwest Laboratory and published by Elsevier Publishing Company. This book was released on 1988 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Owing to man-made intervention, the shrub-steppe now represents a rapidly disappearing landscape in the arid regions of North America. This book represents a systems-level study of ecological variables affecting water balance, and responses to perturbation. The study focused on a very large, protected, landscape unit, comprising a natural watershed'' area located in the semi-arid western United States. Long-term and concurrent data sets were established with a view towards establishing system-level responses to manipulative interventions, and natural perturbations like wildfire. These data sets were established for micrometeorology, climatology, mineral cycling in soils, nutrient and mineral pathways in springs and streams, vegetational dynamics, and population changes on the site. In synthesizing nearly twenty years of data, the more interesting ecosystem level responses concerned vegetational recovery and water balance. For instance, the synthesis uniquely demonstrates the interaction of biotic and non-biotic factors and their integrated effect on regional water balance.
Download or read book Relationships Between Soil Heterogeneity and Vegetation Recovery in Sagebrush Steppe Following Wildfire and Wind Erosion written by Amber Hoover and published by . This book was released on 2010 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
