+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Assessing fuel treatment effectiveness using satellite imagery and spatial statistics

, : Assessing fuel treatment effectiveness using satellite imagery and spatial statistics. Ecological Applications 19(6): 1377-1384

Understanding the influences of forest management practices on wildfire severity is critical in fire-prone ecosystems of the western United States. Newly available geospatial data sets characterizing vegetation, fuels, topography, and burn severity offer new opportunities for studying fuel treatment effectiveness at regional to national scales. In this study, we used ordinary least-squares (OLS) regression and sequential autoregression (SAR) to analyze fuel treatment effects on burn severity for three recent wildfires: the Camp 32 fire in western Montana, the School fire in southeastern Washington, and the Warm fire in northern Arizona. Burn severity was measured using differenced normalized burn ratio (dNBR) maps developed by the Monitoring Trends in Burn Severity project. Geospatial data sets from the LANDFIRE project were used to control for prefire variability in canopy cover, fuels, and topography. Across all three fires, treatments that incorporated prescribed burning were more effective than thinning alone. Treatment effect sizes were lower, and standard errors were higher in the SAR models than in the OLS models. Spatial error terms in the SAR models indirectly controlled for confounding variables not captured in the LANDFIRE data, including spatiotemporal variability in fire weather and landscape-level effects of reduced fire severity outside the treated areas. This research demonstrates the feasibility of carrying out assessments of fuel treatment effectiveness using geospatial data sets and highlights the potential for using spatial autoregression to control for unmeasured confounding factors.


PMID: 19769087

Other references

Ikari, A.; Nakajima, K.; Taki, S.; Suketa, Y., 2002: Up-regulation of Na+-dependent Mg2+ transport by nitric oxide and cyclic GMP pathway in renal epithelial cells. A putative, Na(+)-dependent Mg(2+) transport pathway controls the intracellular free Mg(2+) concentration ([Mg(2+)](i)) in various mammalian cells. The characteristics of this Mg(2+) transport pathway have not been clarified. Herein, we examined t...

Kimura, K.; Mishima, H.; Muto, J.; Komaya, K.; Saito, T.; Ando, K.; Ishiguro, S.; Ohashi, N.; Arikawa, T.; Komatsu, S.; Miyachi, M.; Watanabe, D.; Sano, T., 2016: A Case of Bullous Pemphigoid Relieved after Sigmoid Colon Cancer Resection. A 76-year-old man presented with many bullous lesions and erythema over his whole body in August 2014. Blood examination showed an elevation of the anti-BP180 antibody (658 U/mL) and a biopsied specimen of the skin lesions showed subepidermal bull...

Stander, G.H., 1963: The pilchard of South-West Africa (Sardinops ocellata). Temperature: Its annual cycles and relation to wind and spawning. Invest Rep mar Res Lab SW Africa No, 9: 1-57

Benedet, F.; Bigot, Y.; Renault, S.; Pouzat, J.; Thibout, E., 1999: Identification and perception of stimulus used by the endoparasitoid Diadromus pulchellus (Hymenoptera: Ichneumonidae) during host acceptance. Chemicals from the silk cocoon in which the Acrolepiopsis assectella (Lepidoptera: Acrolepiidae) pupa is concealed are the main chemical signal used by the solitary parasitoid Diadromus pulchellus (Hymenoptera: Ichneumonidae) in host recognition a...

Maietta, M.; Colombo, R.; Lavecchia, R.; Sorrenti, M.; Zuorro, A.; Papetti, A., 2017: Artichoke (Cynara cardunculus L. var. scolymus) waste as a natural source of carbonyl trapping and antiglycative agents. The role of polyphenolic compounds extractable from artichoke solid wastes in the formation of advanced glycation end products (AGEs) was studied. Outer bracts and stems were extracted using different water-ethanol mixtures and HPLC-DAD analyses i...

Goudra, B.Gouda.; Singh, P.Mohinder., 2014: Propofol alternatives in gastrointestinal endoscopy anesthesia. Although propofol has been the backbone for sedation in gastrointestinal endoscopy, both anesthesiologists and endoscopists are faced with situations where an alternative is needed. Recent national shortages forced many physicians to explore these...

Pruthi, S., 1936: Studies on Indian Jassidae (Homoptera). III. Memoirs of the Indian Museum, 11: 101-131

Boeck, V.H.F., 2014: Smallpox among U.S. soldiers in Korea. Bulletin of the U.S. Army Medical Department. United States. Army. Medical Department 6: 45-58

Motorina M.V., 1980: Motor nuclei structure of the rat spinal cord in post natal ontogenesis based on light microscopic and electron microscopic data. Ultrastructural peculiarities of motoneurons and synapses in the area of the motor nuclei in the spinal cord of 10-18 day old rats were revealed by EM. By the 14th day of age, motoneurons acquired features of mature neurons. Several types of synap...

Margolin, G.; Ullman, J.; Karling, J., 2017: A New Technique for Percutaneous Tracheotomy. The objective of this study was to investigate a new technique for tracheal puncture during percutaneous dilatational tracheotomy (PDT). A new invention, known as SafeTrach, was used: this instrument allows exact localization of the puncture site...