We used a database of 26,838 wildfire reports obtained from the Rural Affairs Department of the Regional Government (Xunta de Galicia), and the Spanish Ministry of Agriculture, Food and Environment (MAGRAMA) from the period January 1, 2006 to December 31, 2011. Forest fire reports list general information including location, date, and causes and motivations. Only fires affecting wildland vegetation are included in this database. We evaluated the coordinates of fire ignition points by checking the agreement between those coordinates and the parish and municipality given in fire reports, using topographic maps (National Topographic Map Series, IGN, scale 1:25,000) and the burned areas as visually identified in Landsat 5 TM images taken in different …show more content…
We determined the LULC type using information from the Fourth National Forest Inventory (IFN4, MAGRAMA 2011), regrouping the original IFN4 classes into a total of 11 classes (see Table 2), using information on the cover of trees, shrubs and herbs (grasses and forbs) and the identity of the three dominant tree species and their relative dominance, as provided in the IFN4. Areas with no or very scarce vegetation (e.g., water bodies, beaches, or artificial surfaces such as industrial or urban areas) were excluded, as well as the less frequent LULCs (grasslands, Mediterranean forests and Acacia woods), due to the low number of fires in WUI in these categories. Topographic variables were calculated using the Spatial Analyst extension to ArcGIS® 10.2.2 by ESRI to derive the slope, elevation and aspect, based on a 10 m spatial resolution digital elevation model (DEM, 1:5,000 scale), developed by SITGA (Galician Territorial Information System). The slope was defined as a percentage and elevation in meters. Aspect was defined as the compass direction that the slope faces: N (315º to 360º and 0º to 45º), W (45º to 135º), S (135º to 225º) or E (225º to 315º)
On March 6,2017, the Panhandle of Texas caught on fire. The wildfire had burned over 500,000 acres of land. Most of this land includes livestock and feed for livestock. Several people had died during this traumatic event, because they were trying to save their livestock and land Cortana (2017). The wildfires burning in Texas can be seen from space, they are that huge Cortana (2017).
Every forest has a story to tell. By looking closely at its habitants, that story can be interpreted. Much of this narrative is written in the trees: their age, their tolerance to shade, and the rate at which they grow are all characteristics that can imply a lot about their environment. Exploring these relationships and how they connect with each other can indicate the health and history of the land. Heiberg Forest, located in northern New York, was once used for agricultural purposes in the 1800-1900’s. (Nowak, Lecture Notes) Much of the land once used for farming was left to regrow back into a young forest. The life history of different tree species can be determined by examining the most common species in Heiberg.
For as long as mankind can conceive, fire has been a remarkable tool to conquer. When controlled, it provides necessary heat, energy, and fuel for a consumer to use; however, when fire goes unattended, it has the potential to become a wholly destructive element. The more western states of America, such as Utah and Colorado, have repeatedly experienced this concept in its most devastating form: wildfires. A wildfire is generally considered to be difficult to control and fast moving, swallowing anything that lay in its path, including forest or human habitat. As human incursion reaches more remote areas in wooded mountains, wildfires pose a serious threat to high-end homes and secluded cabins. The untamed nature of these fires also allows them to creep into subdivisions and endanger more
no surprise that wildfires are a huge issue in the western states. Especially on Indian Reservations. Two articles that focus on this issue are called Secretary Zinke Directs Interior Bureaus to Take aggressive Action to Prevent Wildfires, US Department of Interior & Western US Faces Wildfires Explosion by Kieran Cooke, Climate News Network. Both of these articles argue that wildfires shouldn’t become normalized and that something should be done to prevent and/or be better prepared for when wildfires occur. In essence these articles focus primarily on the amount of land burning and the effect it has on vegetation.
By comparing the topography, soil moisture levels, relative humidity, and wind speed of the upland Savanna and Bottomland forest we will be able to compare and contrast between these two vegetation zones. The data collected in the investigation will be used to test the hypothesis that the bottomland forest has a higher degree of shrub layer cover than the savanna. The higher level of shrubs in the bottomland forest might be attributed to the space available for shrub layer species. In addition, the data collected will confirm that the bottomland forest has a higher tree density than the
Fire has long been understood to have an impact on the ecosystem of our native woodlands, but it is only recently that we have come to understand its importance in maintaining the ecosystem. This report takes samples of the flora structure and growth in two different areas of Anstey Hill Recreation Park. The first was last burnt in 1995, and the second burnt in 2012. The results of these samples can be compared to data sampled in 2011, when the 2012 burnt area had not been burnt since Ash Wednesday in 1983.
The topography of the island is also of note. The west end of the island features a closed-canopy forest with more hardwood trees. The east end of the island is better characterized as a “boreal forest,” a term used to describe regions that are mostly covered by coniferous forests. It is good to note that the balsam fir is found on both ends of the island, but that samples used in the study from the west end of the island were, on average, older, but shorter, than those samples found on the east side of the island.
“Drainage patterns, the hilliness of the ground, the range of soils, the nature of the bedrock,
The Burnt Area of Mount Pilot contains mixed stands of competing, seedlings with slower growing Callitris seedlings and re-sprouting Eucalyptus trees. There is few Callitris endlicheri, as the species is fire sensitive and often destroyed by fire, particularly when in quick succession. Prior to the 2003 fire the site was dominated by Callitris species of tree. The seedlings that emerged were mostly Eucalyptus, with less dense Callitris seedlings proving that the growth of Callitris is not consistent with long term site suitability. Surprisingly, more Eucalyptus seedlings died in the first six years of regeneration that Callitris seedlings; competition in co-existence does not determine survivability. The major trend is that the growth of Eucalyptus seedlings is faster than that of Callitris seedlings. The density of Eucalyptus seedlings is shown to effect Callitris seedlings growth which thrives where Eucalyptus seedlings are sparser. Callitris may take 7-15 years to produce sufficient seeds (Cohn, Lunt, Ross, & Bradstock, 2011; I. Lunt, Jones, N., & Petrow, M.,, 2003; I. Lunt, Price, J.,, 2016; Ian D Lunt, Zimmer, & Cheal, 2011; Zimmer, 2012).
This was attributed to the ranges of vegetation type with elevation and slope, with mixed conifer tree species growing at higher elevations with increased tree cover. Similar patterns can be identified with the Rim Fire in the Stanislaus National Forest. The Pinus ponderosa (ponderosa pine) or Calocedrus decurrens (incense cedar) tree species tend to favor higher elevations, slopes between 0 - 45 degrees, and aspects between 0 - 33 degrees from North (Myers).
The rising number of high severity wildfires in California has significant ecological, economic, and health impacts. Many western American forests are adapted to frequent low severity fires. However, the majority of these forests, and particularly the mixed conifer forests of California, are not adapted to high intensity fires and do not possess fire resistance adaptations such as serotinous cones to protect seeds. Consequently, high severity fires have significant negative impacts on California forests, and the absence of low severity fires has considerably altered many fundamental ecosystem processes (Miller et al. 2008). Prior to 1900, low severity fires would burn every 6-15 years. Low severity fires are generally non-lethal, have minimal change to the overstory, and kill mainly small trees. In the past, these fires were started naturally by lightning, or by Native Americans who used low severity fires to manage the forests.
The reduction of vegetative cover during and after fire can have a severe negative impact on several different factors including: water quality, soil erosion, wildlife and threatened or endangered species, introduction or spread of invasive and exotic species, and economic or social impacts to the surrounding communities. We will implement a vegetation monitoring protocol that will help guide us in restoration and recovery efforts of the High Park fire scar and the surrounding areas and watershed. A collaboration with the US Forest Service will be aggressively pursued in the hopes that a combined use of the Forest Inventory and Analysis (FIA) program and our separate vegetation monitoring protocol can be utilized. We will use the burn severity field data collection points and cross-reference them with the FIA data points to see if there is any overlap between them. If there is then the FIA data points will be given preference as those points can possibly provide more information than solely High Park Fire data collection points. If there is not the ability to utilize the FIA data collection points, due to privacy, cost, or unforeseen reasons, then the High Park Fire data collection points will be
According to Merriam-Webster’s Dictionary, Wildfire means “a sweeping and destructive conflagration esp. in a wilderness or a rural area.” Also according to the same dictionary, wilderness means “a tract or region uncultivated and uninhabited by human beings.” Forest Fires happen when there is a drought because branches and twigs die and dry out creating plenty of fuel for a fire. According to the NIFC (National Interagency Fire Center) there are about 105,534 wildfires that occur each year.
A wildfire is any instance of uncontrolled burning in grasslands, brush, or woodlands. Wildfires destroy property and valuable natural resources, and may threaten the lives of people and animals. Wildfires can occur at any time of the year, but usually occur during hot, dry weather. Wildfires are usually signaled by dense smoke which may fill the air for miles around. The National Weather Service, U.S. Forest Service, and State forestry agencies combine to give wildfire probability forecasts. Local radio and television stations broadcast information and warnings on local fire conditions. Wildfires pose an increasing threat to the residential United States. In 1987, 53,000 fires consumed more than two million acres. By October 1988, almost
Humans have been changing the Western forests' fire system since the settlement by the Europeans and now we are experiencing the consequences of those changes. During the summer of 2002, 6.9 million acres of forests was burnt up in the West (Wildland Fires, 1). This figure is two times the ten year annual average, and it does not look like next summer will be any better (Wildfire Season, 1).