Ecological Restoration of Forests and Fires
One of the most predominate ecosystems is the forest community. Covering about one-fourth of the land area on Earth, forests consist mainly of trees and other woody vegetation, growing closely together. The trees can be large and densely packed, as they are in the coastal forests of the Pacific Northwest, or they can be relatively small and sparsely scattered, as they are in the dry tropical forests of sub-Saharan Africa. Forests are complex ecosystems that also include “soils and decaying organic matter, fungi and bacteria, herbs and shrubs, vines and lichens, ferns and mosses, insects and spiders, reptiles and amphibians, birds and mammals, and many other organisms” (Audesirk, 2003). All of these components constitute an intricate web with many biological interconnections. A bird may depend on the upper branches of a tree for nesting, while the tree may depend on the fungi surrounding its roots to obtain water and nutrients. A forest performs a number of vital environmental services, such as cleansing the air, moderating the climate, filtering water, cycling nutrients, providing a habitat for animals and provides humans with recreation and beautiful scenery. Resources from the forest supply raw materials, such as lumber, paper products, greenery and pharmaceuticals. Some of the developing issues today concerning forests are fires and what we as a society can do to restore the natural ecosystems within the forests around our world. Many aspects are to be considered when looking at the ecology and bioremediation of forests such as, human activities, wildlife, endangerment and environmental changes. This paper will discuss the effect wildfires have on the forest ecosystem.
Human beings cause most wildfires, directly or indirectly. In the United States lightning, the only truly natural cause is responsible for less than 10% of all such fires. In the West, lightning is the primary cause, with smoking (cigarettes, matches, and such) the second most frequent. Combined they account for 50 to 75% of all wildfires. In the “13 southern states (Virginia to Texas) the primary cause is arson; this combined with smoking and debris burning makes up 75% of all wildfires” (Perry, 1994). The other causes of wildfires are machine use and campfires. Machine use includes railroads, logging, sawmills, and other operations using equip...
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...ited States Department of Agriculture, Forest Service. Retreived on line July 7, 2005, http://www.fs.fed.us/rm/pubs/rmrs_gtr42_2.html
Audesirk, T. (2003). Life on Earth. In (Ed.), (3rd ed., pp. 581-620). New York: Pearson Custom Publishing - Prentice Hall, Inc..
Franklin, J. F., et al. (1981). In Ecological Characteristics of Old-Grow Douglas Fir Forest, (GTR PNW-118). Retrieved July 9, 2005, from USDA Forest Service Web Site: http://
Lyons, J. L., Huff, M. H., Hooper, R. G., Telfer, E. S., Schreiner, D. S., & Smith, J. K. (2000). Wildland Fire in Ecosystems: Effects of Fire on Fauna. Published by The United States Department of Agriculture, Forest Service. Retreived on line July 7, 2005, http://www.fs.fed.us/rm/pubs/rmrs_gtr42_1.html
Perry, D. A. (1998). The Scientific Basis of Forestry, Annual Review of Ecology and System Thematic 29:435-466, Retrieved July 9, 2005 from: http://www.panda.org/about_wwf/what_we_do/policy/policy_and_events/index.cfm
Sandberg, D.V., R.D. Ottmar, J.L. Peterson, and J. Core. 2002. Wildland Fire on Ecosystems: Effects of Fire on Soil and Water. Published by The United States Department of Agriculture, Forest Service. Retreived on line July 7, 2005
Fires kill plants and trees leaving wildlife without homes and food. Large fires cause lots of smoke and air pollution.
The ecological effects of wildfires on Yosemite are among some its greatest benefits. Trees like Bishop Pines and Sequoias have evolved in such a way that their seeds will only open when exposed to high temperatures. The fires also help to clear out dead leaves and weeds, thereby making sunlight accessible to new plants and increasing their chances to germinate (Marder). Wildfires are so essential in areas like Yosemite that over millions of years, plants have developed strategies to be successful in this type of environment. For instance, giant sequoias have developed a thick layer of fire-resistant bark. This bark is “the main explanation for tree survival in intense fires” (Gignoux, Colbert, and Menaut). Fire makes the soil fertile and redistributes the nutrients evenly so that the next generation of trees can cover more space. The fires have helped...
Fire plays a huge role in natural forests. The let it burn policy allows natural fires to burn unless, they threaten people, property, or endangered species. This policy allows the years and years of kindling that has fallen and piled up on the forest floor to burn up in smaller fires, instead of having huge devastating fire like the ones that burning for months in 1910 and 1988. When the west was first settled, forests were thinned by lumber companies that logged the trees and burned the logging debris, and by ranchers looking to increase pasture land. The last herder coming out of the mountains would set a fire to ensure good forage for the next year.
As people of the twenty-first century, we are all too familiar with the frequent occurrence of wildfires in our nation’s forests. Each year millions of acres of woodlands are destroyed in brutal scorches. It has been estimated that 190 million acres of rangelands in the United States are highly susceptible to catastrophic fires (www.doi.gov/initiatives/forest.html.). About a third of these high-risk forests are located in California (www.sfgate.com). These uncontrollable blazes not only consume our beautiful forests but also the wildlife, our homes and often the lives of those who fight the wildfires. The frequency of these devastating fires has been increasing over the years. In fact, in the years 2000 and 2002, it has been reported that the United States has faced its worst two years in fifty years for mass destruction fires (www.doi.gov/initiatives/forest.html.). The increased natural fuels buildup coupled with droughts have been a prevailing factor in contributing to our wildfires and unhealthy forests (www.blm.gov/nhp/news/releases/pages/2004/pr040303_forests.html). Due to the severity of these wildfires, several regulations and guidelines have been implemented to save our forests. In fact, the President himself has devised a plan in order to restore our forests and prevent further destruction of our woodlands.
The Mann Gulch wildfire was a tragic event that took the lives of 13 firefighters who had jumped into the area to battle the fast-moving fire. The tragedy was a severe hit to the Forest Service, which had not experienced a death during a decade of smoke jumping (Rothermel, 1993). Along with the horrific deaths, Rothermel (1993) states the Mann Gulch fire had serious consequences for the Forest Service and its research branch. The fire disaster changed the landscape of wildfire firefighting. Due to the tragedy, the Forest Service would establish new training techniques and improved safety measures for its firefighters and smokejumpers along with more emphasis on fire research and the science of fire behavior (Lehman, 2009). With the training and research, better firefighting techniques and equipment evolved (Lehman, 2009). The analysis will evaluate how the firefighters
Approximately three miles west of Colorado Springs in the Pike National Forest, the Waldo Canyon fire of 2012 was the most destructive wildfire in Colorado history burning 18, 247 acres, killing two people, destroying 347 homes and damaging many more (City of Colorado Springs, 2013). In addition to property damages and loss of life, there were other damages caused from this wildfire to include wildlife, plant life, watershed and soil. Economic damages caused by this wildfire include firefighting costs, insurance claims, home displacement costs and business closures during the duration of the fire.
The International Union for Conservation of Nature (IUCN) considers the shrub one of the100 worst invasive species in the world. It is also a Weed of National Significance making it one of the 20 most problematic species in Australia. It is believed that the weed increases fire risk in the Queensland rainforest by changing where the fuel beds lay. Lantana camara, is known for being extremely invasive and detrimental to the biodiversity; it can be found in various tropical and sub-tropical environments on about 60 continents. The weeds alter soil quality, water availability and fire regimes which was studied in this paper. Two mechanism were studied, such as whether the fires were caused because the weeds are more flammable than native species, or did the change in forest structure from the weeds allow fire to spread. Leaf and twig dry matter was measured and burned in laboratory trials. L. camara was discovered to be less flammable than the native species in the area; meaning that the first mechanism hypothesis was not accurate. To test the second mechanism fuel bed depths, percentage cover by fuels, and amount of medium-size class fuels were measured. These were found to be higher in the parts of the tropical forests
A wildfire is one example of secondary succession. When a disturbance in the environment occurs, such as a wildfire, either part or all of the community is destroyed. The aftermath of the wildfire leaves a barren landscape open to new growth, vegetation, and re-colonization of plant species (Gurevitch et al, 2002). Various studies have been undertaken and completed regarding the restoration and recovery of plant communities following wildfires. These studies include aspects of species richness during colonization to niche development.
Grelen, Harold E. May Burns Stimulate Growth of Longleaf Pine Seedlings. New Orleans: Southern Forest Experiment Station, 1978.
Policies regarding the handling of wildland fires continue to change and evolve as new information is learned each fire season. Attitudes have changed between complete wildland fire suppression to no suppression at all. We now seem to have reached a balance between the two schools of thought and fall somewhere in the middle.
Since I had no idea where to begin looking I went to Mr. Dilts. and ask him for help. He was really generous and helpful he even highlight the section that contain the information i was looking for. I was really thankful. He provide me with a book called Forest Fires by margaret fuller. The book included a useful table of content which was really helpful. At first I though that this book wouldn’t include any new information than the one I already had but boy was I wrong. This book provided more information than any of my other sources. The first piece was the way fire attacks. there are actually three ways which are described as passive, active, and independent fire crown. a passive fire crown will burned the surface and in rare occasions a three, active fire is more dangerous as it 'll consume both the surface fuels and trees, and independent fire will consume everything on its path and even yards ahead. I also learned that Crown fires travel rapidly from place to place since they do not stay in one place long. The book also included a section of effects after wildfires which was one of the things I wanted to learn. For example the smoke of wildland fire which contains tiny particles of ash penetrate on the lungs and remain there for a long period of time or until checked. In the other side the book also provided the
Fire at any level can be devastating, yet the effects that wildfires have on every worldwide country really has left its mark on the land. As written by world renowned wild fire spokesperson Smokey the Bear, “Every year, wildfires sweeps through parts of the United States setting wilderness and homes ablaze. On average these raging infernos destroy about four to five million acres of land a year. But in 2012, wildfire burned more than 9.3 million acres, an area about the size of Massachusetts and Connecticut combined” (U.S. Wildfires). Destroying homes, crops, towns and of course forests. Yet the effects of these fires can be seen from a negative perspective as well as some positive. Plus there are natural causes as well as manmade that makes these destructive fires erupt and become almost unstoppable in seconds.
“Healthy forests help absorb greenhouse gasses and carbon emissions that are caused by human civilization and contribute to global climate change. Without trees, more carbon and greenhouse gasses enter the...
Forest fires are mainly caused by human carelessness; campfires, smoking materials, and fireworks. When campfires are set up, all the little ashes and fire pieces blow in a different direction towards all of the main forest and catches them on fire, then the wind just expands the fire to catch on to the rest of the forest. Smoking materials such as cigarettes thrown to ground can start up a forest fire; one little piece of heat like that can heat up a leaf or part of the grass so hot that it will start to burn and build bigger and bigger. Fire...
The Forest fire is occurring very frequently nowadays, reasons for it are a heavy increase in global warming and an increase in temperature.