UID:
kobvindex_GFZ20200924114950
Format:
xv, 187 Seiten
,
Illustrationen
Series Statement:
CRREL Report 80-19
Content:
During the period 1975-1978 the Federal Highway Administration sponsored a series of environmental engineering investigations along the Yukon River to Prudhoe Bay Haul Road. In 1976 the Department of Energy joined these investigations with a series of ecological projects which continue to the present. Both agencies research efforts were conducted on a cooperative basis with CRREL’s in-house research program. The objectives of the research focused on
1) an evaluation of the performance of the road,
2) an assessment of changes in the environment associated with the road,
3) documentation of flora and vegetation along the 577-km-long transect,
4) methodologies for revegetation and restoration,
and 5) an assessment of biological parameters as indicators of environmental integrity.
In support of these objectives, specific studies were undertaken that investigated the climate along the road, thaw and subsidence beneath and adjacent to the road, drainage and side slope performance, distribution and properties of road dust, vegetation distribution, vegetation disturbance and recovery, occurrence of weeds and weedy species, erosion and its control, revegetation and restoration, and construction of the fuel gas line. This report presents background, information on the region, detailed results of the road thaw subsidence and dust investigations, and summaries of revegetation, fuel gas line, vegetation distribution, soil, and weed studies.
Note:
CONTENTS
Abstract
Preface
Summary
Introduction
Chapter 1. The road and its environment
Introduction
General physiography
Regional climate
Surficial and bedrock geology
Permafrost and ground ice
General biota
Vegetation
Floristic survey
Vegetation mapping
Soils and mapping
Chapter 2. Roadbed performance and associated investigations
Roadbed investigations
Roadbed performance
Performance of drainage features
Performance of sideslopes
Conclusions from road, drainage and sideslope performance studies
Fuel gas line construction
Chapter 3. Distribution and properties of road dust along the northern portion of the Haul Road
Introduction
Methods
Results of wind direction and velocity measurements
Dust load and distribution
Particle size analyses of dust
Chemical composition properties of dust and related samples
Soil cation composition
Dust impacts on vegetation
Discussion and conclusions
Chapter 4. Revegetation and restoration investigations
Introduction
Revegetation approaches
Alyeska erosion control and revegetation program
Weeds and weedy plants
Performance of revegetation
Alyeska willow cutting program
CRREL restoration experiments
Conclusions
Revegetation recommendations
General report recommendations
Literature cited
Appendix A: General environmental guidelines applicable to subarctic and arctic road construction
Appendix B: University-based studies along the Yukon River-Prudhoe Bay Haul Road
Appendix C: CRREL maps of Haul Road showing locations of all study Sites
Appendix D: Additional Haul Road cross-sectional profiles
Appendix E: Clay mineralogy of road-related materials
Appendix F: List of reports in the Joint State/Federal Fish and Wildlife Advisory Team series
In:
CRREL Report, 80-19
Language:
English
Keywords:
Forschungsbericht
URL:
https://cdm16021.contentdm.oclc.org/digital/collection/p266001coll1/id/6433
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