MODELING EROSION FROM UNPAVED FOREST ROADS AT VARIOUS LEVELS OF GEOMETRIC DETAIL USING THE WEPP MODEL

2004 ◽  
Vol 47 (3) ◽  
pp. 961-968 ◽  
Author(s):  
H. Rhee ◽  
J. L. Fridley ◽  
R. B. Foltz
Keyword(s):  
Forest Roads ◽  
Geometric Detail

FOREST ROADS SYSTEM IN MOUNTAIN RELIEF: INDICATOR EVALUATION OF WATER-EROSION RISK

2017 ◽  
Vol 20 (1) ◽  
Author(s):  
Paweł B. Dąbek ◽  
◽  
Romuald Żmuda ◽  
Tomasz Kowalczyk ◽  
Jolanta Dąbrowska ◽  
...  
Keyword(s):  
Water Erosion ◽  
Forest Roads ◽  
Erosion Risk ◽  
Indicator Evaluation

scholarly journals Potential of Small Culverts as Wildlife Passages on Forest Roads

2021 ◽  
Vol 13 (13) ◽  
pp. 7224
Author(s):  
Hsiang-Ling Chen ◽  
Erin E. Posthumus ◽  
John L. Koprowski
Keyword(s):  
Animal Movement ◽  
Small Dimension ◽  
Lynx Rufus ◽  
Tamiasciurus Hudsonicus ◽  
Red Squirrels ◽  
Forest Roads ◽  
Alternative Pathways ◽  
Slow Moving ◽  
Trail Cameras ◽  
Spermophilus Variegatus

Roads and traffic can cause animal mortality. Specifically, roads serve as barriers by impeding animal movement, resulting in demographic and genetic consequences. Drainage structures, such as culverts, can provide linkages between habitat patches. However, the potential of small culverts with diameters of <60 cm (e.g., wildlife passages that facilitate movement on forest roads) are relatively unknown. In this study, we used trail cameras to monitor the use of 14 small culverts, by mammals, along forest roads on Mt. Graham, home of the critically endangered Mt. Graham red squirrels (Tamiasciurus hudsonicus grahamensis), in southeastern Arizona, USA. From 2011 to 2013, we only recorded 20 completed road crossings through culverts. More than half of culvert uses were by striped skunks (Mephitis mephitis), followed by the rock squirrel (Spermophilus variegatus) and the bobcat (Lynx rufus). The Mt. Graham red squirrel was the only species that was common along the roads, but never crossed the roads. Culverts with higher usages were characterized by shorter culvert lengths and absence of accumulated soil inside the culverts. Our study shows that small-dimension drainage systems may provide alternative pathways for wildlife crossing roads, especially for slow moving and ground dwelling species. However, the potential of small culverts assisting wildlife crossings can only be maximized when culverts are accessible year-round.

scholarly journals Forest Road Status Assessment Using Airborne Laser Scanning

2019 ◽  
Vol 66 (4) ◽  
pp. 501-508 ◽  
Author(s):  
Katalin Waga ◽  
Piotr Tompalski ◽  
Nicholas C Coops ◽  
Joanne C White ◽  
Michael A Wulder ◽  
...  
Keyword(s):  
British Columbia ◽  
Laser Scanning ◽  
Airborne Laser Scanning ◽  
Height Distribution ◽  
Forest Roads ◽  
The Road ◽  
Airborne Laser ◽  
Independent Field ◽  
The Status ◽  
The Impact

Abstract Forest roads allow access for silvicultural operations, harvesting, recreational activities, wildlife management, and fire suppression. In British Columbia, Canada, roads that are no longer required must be deactivated (temporarily, semipermanently, or permanently) in order to minimize the impact on the overall forested ecosystem. However, the remoteness and size of the road network present challenges for monitoring. Our aim was to examine the utility of airborne laser scanning data to assess the status and quality of forest roads across 52,000 hectares of coastal forest in British Columbia. Within the forest estate, roads can be active or deactivated, or have an unknown status. We classified road segments based on the vegetation growth on the road surface, and edges, by classifying the height distribution of airborne laser scanning returns within each road segment into four groups: no vegetation, minor vegetation, dense understory vegetation, and dense overstory vegetation. Validation indicated that 73 percent of roads were classified correctly when compared to independent field observations. The majority were classified as active roads with no vegetation or deactivated with dense vegetation. The approach presented herein can aid forest managers in verifying the status of the roads in their management area, especially in remote areas where field assessments are costly and time-consuming.

Function, effects, and management of forest roads

2000 ◽  
Vol 133 (3) ◽  
pp. 249-262 ◽  
Author(s):  
Ariel E Lugo ◽  
Hermann Gucinski
Keyword(s):  
Forest Roads
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