Patterns of Ice Accumulation and Forest Disturbance During Two Ice Storms in Southwestern Virginia PDF Download

Author: Charles W. Lafon
Publisher:
ISBN:
Category : Ice storms
Languages : en
Pages : 19

View

Book Description

Author: Cathryn H. Greenberg
Publisher: Springer
ISBN: 3319215272
Category : Nature
Languages : en
Pages : 406

View

Book Description
This book discusses the historic range of variation (HRV) in the types, frequencies, severities and scales of natural disturbances, and explores how they create heterogeneous structure within upland hardwood forests of the Central Hardwood Region (CHR). The book was written in response to a 2012 forest planning rule which requires that national forests to be managed to sustain ‘ecological integrity’ and within the ‘natural range of variation’ of natural disturbances and vegetation structure. Synthesizing information on HRV of natural disturbance types, and their impacts on forest structure, has been identified as a top need.

Author: Rudolf Geiger
Publisher: Rowman & Littlefield
ISBN: 9780742555600
Category : Nature
Languages : en
Pages : 648

View

Book Description
This revised and updated edition of Rudolf Geiger's classic text provides a clear and vivid description of the surface microclimate, its physical basis, and its interactions with the biosphere. The book explains the principles of microclimatology and illustrates how they apply to a wide array of subfields. Those new to the field will find it especially valuable as a guide to understanding and quantifying the vast and ever-increasing literature on the subject. Designed as an introductory text for students in environmental science, this book will also be an essential reference for scientists seeking a clear understanding of the nature and physical basis of the climate near the ground, and its interactions with the biosphere.

Author:
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 618

View

Book Description

Author: Leslie Edwards
Publisher: University of Georgia Press
ISBN: 0820330213
Category : Nature
Languages : en
Pages : 697

View

Book Description
The Natural Communities of Georgia presents a comprehensive overview of the state’s natural landscapes, providing an ecological context to enhance understanding of this region’s natural history. Georgia boasts an impressive range of natural communities, assemblages of interacting species that have either been minimally impacted by modern human activities or have successfully recovered from them. This guide makes the case that identifying these distinctive communities and the factors that determine their distribution are central to understanding Georgia’s ecological diversity and the steps necessary for its conservation. Within Georgia’s five major ecoregions the editors identify and describe a total of sixty-six natural communities, such as the expansive salt marshes of the barrier islands in the Maritime ecoregion, the fire-driven longleaf pine woodlands of the Coastal Plain, the beautiful granite outcrops of the Piedmont, the rare prairies of the Ridge and Valley, and the diverse coves of the Blue Ridge. With contributions from scientists who have managed, researched, and written about Georgia landscapes for decades, the guide features more than four hundred color photographs that reveal the stunning natural beauty and diversity of the state. The book also explores conservation issues, including rare or declining species, current and future threats to specific areas, and research needs, and provides land management strategies for preserving, restoring, and maintaining biotic communities. The Natural Communities of Georgia is an essential reference for ecologists and other scientists, as well as a rich resource for Georgians interested in the region’s natural heritage.

Author: Lulu Zhang
Publisher: Springer
ISBN: 331954957X
Category : Technology & Engineering
Languages : en
Pages : 147

View

Book Description
This book comprehensively describes the major ecosystem services in dryland environments that are provided by typical land use, including forestland, grassland and farmland, using the Loess Plateau, Northwest China as an example. It offers extensive information on land policy, implementation and scientific evidence, and discusses the restoration of the degraded Loess Plateau environment, which that brings new challenges in the sustainable use of natural resources, in particular soil and water. It presents a transdisciplinary and up-to-date understanding of interlinkages and competition between different ecosystem services and illustrates benefit sharing among different users and stakeholders, land- management practitioners and local governments. It is a major contribution to the on-going debate on future land-development strategies and identifies areas where there is a need for more research. This book is a valuable resource for students, scientists and policy makers.

Author:
Publisher:
ISBN:
Category : Longleaf pine
Languages : en
Pages : 54

View

Book Description

Author: Rachel E. Isaacs
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description
Large-extent ice storms have received relatively little attention from researchers. This research investigates the effects of abiotic and biotic factors on the spatial patterns of ice storm disturbance on a forested landscape. This investigation provides a landscape-level perspective on the impacts of ice storm disturbance, clarifies the effects on ecosystem dynamics, and will aid future forest management plans. The study was conducted in Ouachita National Forest (ONF) in west-central Arkansas and southeastern Oklahoma and examined approximately 6000 km2 of forest between 150 and 800 m elevation. Normalized Difference Vegeation Index (NDVI) difference values were calculated using two Landsat 7 ETM+ scenes to identify NDVI changes that potentially were associated with ice storm damage to the forests. Forty-six geolocated field sites were used to determine the relationship of NDVI difference to actual forest damage caused by the ice storm by counting the number of downed tree boles intersecting a 100 m transect. These field sites encompassed a broad range of each of the physical variables (i.e. elevation, slope, and aspect), forest type, and degree of damage. The linear regression model determined the relationship between NDVI difference and ice storm damage. Elevation, slope, and aspect were calculated based on individual pixels from the DEM. Categories of forest damage were based on NDVI difference values. A chi-square test of correspondence and Cramer0́9s V test were then used to analyze relationships of damage to abiotic and biotic variables. The strong, negative relationship observed in the linear regression model suggested that NDVI was representative of ice storm damage in the study area. The chi-square test of correspondence indicated the abiotic and biotic variables all had associations with NDVI difference results (p

Author: Earl Lemley Core
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 896

View

Book Description

Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 508

View

Book Description