Written in EnglishRead online
|Statement||Raymond M. Rice, Forest B. Tilley, Patricia A. Datzman|
|Series||Research paper PSW -- 146|
|Contributions||Tilley, Forest B, Datzman, Patricia A, Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)|
|The Physical Object|
|Pagination||iv, 12 p. :|
|Number of Pages||12|
Download watershed"s response to logging and roads
Regression analyses of turbidity on watershed natural physiographic characteristics and land use histories (logging and roads) showed the rate of recent logging (mean annual percent of watershed Most research has implicated logging roads as the foremost harvest-related feature in elevated erosion and sedimentation.
Roads, landings, and skid trails can be a source of landslides (Keppeler et al., ) and surface erosion (e.g., Reid and Dunne,Johnson, ). Published by the American Geophysical Union as part of the Water Science and Application Series.
Considerable basic and applied research has been and continues to be focused on understanding, Volume evaluating the influence of land use changes, such as urbanization or forest management, on watershed hydrology watersheds response to logging and roads book :// Paired Watersheds in Florida •Shown that (Riekerk ): –High intensity logging increased water yields by % –Low intensity logging increased water yields % –Clear cutting altered nutrient export rates –All forest operations (fire?) were less than urbanization (much more on this later) roads include old wagon roads, ranch roads, driveways, subdivision roads, logging and mining roads, power and pipeline roads, fire access routes, hunter, woodhauler and four-wheeler tracks.
In most cases where low standard roads were, in fact, engineered water was often treated as a nuisance to be disposed of as cheaply as possible. Unique values A watershed's response to logging and roads: south fork of Caspar Creek, California, Pacific Southwest Forest and Range Experiment Station, USDA Forest Service,Research Paper, no.
PSW, ii + 12 pp., 9 ref, USA. RICE R.; LEWIS J. Estimating erosion risks associated with logging and forest roads in northwestern Community watersheds across the province were once off-limits to logging, but in recent decades that’s all changed.
Now communities like Peachland face escalating costs as mudslides trigger boil-water advisories and the need for pricey water-treatment plants Watersheds •A land area from which all rainfall drains to canals and roads •National contour maps too coarse (5 ft) •Roads act as flow Watersheds in Florida.
Paired Watersheds in Florida •Shown that (Riekerk ): – High intensity logging increased water yields by % – Low intensity logging increased water yields % tion of thousands of miles of new roads (CAL FIRE ).
Poorly located, designed, or maintained roads are the primary cause of water quality degradation in rural watersheds. This publication is designed to help rural landowners understand how to improve and maintain existing roads. It also provides guidance on planning new :// A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel.
Watersheds can be as small as a footprint or watersheds response to logging and roads book enough to encompass all the land that drains water into rivers that drain into Chesapeake Bay, where it enters the Atlantic :// remote areas [1–3].
However, it is widely accepted that forest roads may alter the hydrologic response of the watersheds, because of the alteration of the landscape and its hydrologic functioning, morphology, land uses, and hydrologic characteristics. The impact of forest roads on hydrological processes has previously been studied through several The issue of logging in community watersheds is cloaked in a jurisdictional tangle that creates the impression of provincial government indifference to the quandary facing Glade and other :// Among them and relative to bull trout are Big Creek, Coal Creek, Jim Creek, Goat Creek and Swan Lake — and they are impaired in part by logging and/or logging roads.
Other watersheds Because of the nature of watersheds, the hydrologic and erosional impacts of logging and related road-building activities may move offsite, affecting areas downslope and downstream from the operation. The degree to which this occurs depends on the interaction of many variables, including soils, bedrock geology, vegetation, the timing and size of storm events, logging technology, and operator Modern logging techniques, well-engineered roads and protective vegetative buffers around streams keep our forest streams cool and clear.
Protecting salmon habitat and watersheds In response to the listings of salmon species under the federal Endangered Species Act, Oregon lawmakers joined landowners in to create the Oregon Plan for Salmon The objectives are to show that (i) the response of watersheds (in terms of landslide occurrences) to logging is highly variable; (ii) despite the variation, logging substantially increases landslide frequencies; and (iii) the type of analysis performed affects the interpretation of results, and the ability to make comparisons between studies.
:// and the health of the streams and watersheds through which they pass. California's forest and ranch lands provide beauty, clean water, abundant wildlife,fish habitat, recreation, timber and thousands of jobs.
This book is dedicated to the wise stewardship of these Impacts of forest fires and roads on hydrologic and surface erosion processes of forested watersheds January In book: Manejo Integrado de Cuencas Hidrológicas (In Spanish). Chief among these protections is the NWFP, promulgated nearly two decades ago as a response to "spotted owl" injunctions imposed by federal courts.
The plan represents the foremost example of ecosystem management in the world, covering some 24 million acres of federal forests in Oregon, Washington and Northern :// In other parts of B.C., logging in watersheds has become a burning political issue over the years.
According to the B.C. Tap Water Alliance, an ad hoc A resolution in support of the 30 by 30 goal has been introduced in Congress and several state legislatures, including South Carolina. According to a poll conducted by the Center for American an important variable that affects the streamflow response to logging.
Seasonal analyses of yield increases on experimen-tal forests in western Oregon by Rothacher , Harr et al. [, and Ingwersen ] indicate that most of the increases in annual water yield in response to logging occurs in the October-March rainy season.
Logging Increases in impervious surfaces (i.e. paved roads, parking lots, building roofs) in urban areas in general are also responsible for this effect (see also Natural vs.
urban watersheds). The hydrograph of a stream before and after urbanization reveals how impervious surfaces affect Roads and landings cause enduring damage to soils and streams, help spread noxious weeds, and hinder revegetation.
Roads are a primary cause of reduced water quality and of contractions in the distribution and number of native salmonids on public lands. Reducing road mileage in national forests should be a primary postfire :// Recent changes in the forest policies, regulations, and laws affecting public lands encourage postfire salvage logging, an activity that all too often delays or prevents recovery.
In contrast, the 10 recommendations proposed here can improve the condition of watersheds and aquatic ://()[ 1 day ago These changes are projected to be most prominent in the highest elevation watersheds, where flows are currently most dependent on winter snow accumulation.
By working proactively to defend and restore the natural processes of the forest ecosystem, we can mitigate the local impacts of climate change on Mt.
Hood’s :// The only way those “legacy” roads get dealt with is if logging crews are out working in the bush, the representatives said. “There is so much of that out :// demonstrated that logging and roads cumulatively elevate peakflows, especially in smaller watersheds.
Elevated peakflows have numerous negative impacts on stream conditions and processes, including increased sediment transport, bank erosion, channel scour, and sedimentation of downstream salmonid :// Roads and highways - Roads and highways - The modern road: Since the beginning of the 20th century, as the automobile and truck have offered ever higher levels of mobility, vehicle ownership per head of population has increased.
Road needs have been strongly influenced by this popularity and also by the mass movement of people to cities and thence to suburban fringes—a trend that has led to permanent roads within the Tongass. ecause of the harsh terrain and high costs in the region, new logging roads on the Tongass have been know to cost upwards of $,/mile.
The result is that the Tongass Timber Program generally operates at a net loss, costing taxpayers millions of dollars a year to subsidize roads for uneconomic timber :// He was pointing to where old forest roads cut stark lines across much of the mountainside denuded by heavy-handed, industrial logging from decades ago.
I struggled to :// ten watersheds generated seasonal runoff, depending on the year’s weather. Of the plots that generated runoff, the average runoff was 34 mm from mm of precipitation.
The average sediment yield was less than 1 kg/ha. Effects of logging are much less severe on watersheds. Keywords: forest, watershed, hydrology, research A combination of ESRI world imagery (various sources, ≥1 m resolution, ~–), and Google Earth (SPOT, m resolution, and after) was used.
Each potential IFW was evaluated for human impacts such as current and historic logging, smaller cleared areas not visible in the forest inventory, roads And they learned of a sprawling network of roads in the watersheds that outside of the clear-cuts themselves total kilometres, the equivalent of driving a car from Victoria to St.
John’s Newfoundland and then back across the country again as far as :// Yet under the Trump administration, the U.S. Forest Service has been exploiting legal loopholes to sidestep one of the country’s most important Differing in size and shape, watersheds can encompass a small stream or span thousands of miles like the Mississippi River watershed.
As water flows over and through the landscape, it transports materials like plastics, and often times, pollutants, moving them downstream and ultimately to the :// FORTY YEARS OF LESSONS LEARNED ABOUT THE IMPACTS OF FOREST PRACTICES ON WATERSHED HYDROLOGY AND WATER QUALITY.
George Ice, Principal Scientist National Council for Air and Stream Improvement, Corvallis, Oregon For more than years, forest management in the United States has been evolving to address forest goals for timber and water.
The Years of More than 70 countries have signed up to net-zero emissions by But not us. In the latest episode of The Frant for Guardian Australia, Jan Fran explains how we're still playing politics with Coweeta is one of the oldest continuously operating laboratories of its type in the world.
For the first time, a complete review and summary of more than 50 years study of the hydrological and ecological responses of baseline and managed Southern Appalachian hardwood Rothacher, JackStreamflow from small watersheds on the western slope of the Cascade Range of Oregon (Pub.
No: ) Jones, Julia A., Post, David A. Seasonal and successional streamflow response to forest cutting and regrowth in the northwest and eastern United States (Pub. No: )?dbcode=HF.
Flood response was evaluated at the daily time step due to unavailability of hourly data for this and many other watersheds in the CAP. Our results do not provide data on instantaneous flood peaks, but trends in exceedance probabilities at hourly time steps are often more pronounced than when resolved to daily time steps [ Samuel and Sivapalan Fire moved through three experimental watersheds in the Andrews Forest, September released a series of podcasts recounting The Timber Wars.
Andrews Forest re-search and scientists figured significantly in this social big-change event. The regional flood, which renewed attention to roles of forestry in peak stream flow events, was another Newsletter.The largest risk of accelerated erosion is expected from ground-disturbing activities during fuels reduction treatments, such as construction of roads and firebreaks or salvage logging or thinning.
Intense grazing has changed composition and cover of riparian vegetation, leading to bank erosion, and in many places, widening or incision of