Showing 1 - 10 of 42
Systematic sampling is easy, efficient, and widely used, though it is not generally recognized that a systematic sample may be drawn from the population of interest with or without restrictions on randomization. The restrictions or the lack of them determine which estimators are unbiased, when...
Persistent link: https://www.econbiz.de/10009429445
The North American lumber market is integrated and, under normal conditions, provides unhindered access to all suppliers. North American log markets, in contrast, function on different principles: in one principle, a profit allowance for the wood processor plays a role in timber pricing, whereas...
Persistent link: https://www.econbiz.de/10009429424
Mixed model estimation methods were used to fit individual-tree basal area growth models to tree and stand-level measurements available from permanent plots established in naturally regenerated shortleaf pine (Pinus echinata Mill.) even-aged stands in western Arkansas and eastern Oklahoma in the...
Persistent link: https://www.econbiz.de/10009429425
The production structure of the lumber manufacturing sector in western Washington was investigated using a translog cost function with capital, labor, and sawlog inputs. Analyses were performed with a panel data set of biennial observations from 1972 to 2002 on a cross section of sixteen western...
Persistent link: https://www.econbiz.de/10009429426
The protection of private residences from wildland fire produces high levels of cost and safety risk to firefighters, especially with the expanding ex-urban settlement pattern in the wildland urban interface (WUI). Economic information on probable structure losses can help guide efficient...
Persistent link: https://www.econbiz.de/10009429427
The current study presents a statistical model for assessing the skill of fire danger indices and for forecasting the distribution of the expected numbers of large fires over a given region and for the upcoming week. The procedure permits development of daily maps that forecast, for the...
Persistent link: https://www.econbiz.de/10009429429
This paper presents modeling methods for mapping fire hazard and fire risk using a research model called FIREHARM (FIRE Hazard and Risk Model) that computes common measures of fire behavior, fire danger, and fire effects to spatially portray fire hazard over space. FIREHARM can compute a measure...
Persistent link: https://www.econbiz.de/10009429431
Smoke from fire is a local, regional and often international issue that is growing in complexity as competition for airshed resources increases. BlueSky is a smoke modeling framework designed to help address this problem by enabling simulations of the cumulative smoke impacts from fires...
Persistent link: https://www.econbiz.de/10009429436
As defined by Ascher, biocomplexity results from a "multiplicity of interconnected relationships and levels." However, no integrative framework yet exists to facilitate the application of this concept to coupled human-natural systems. Indeed, the term "biocomplexity" is still used primarily as a...
Persistent link: https://www.econbiz.de/10009429442
This paper addresses the economics of forest fuel thinning programs on federal lands in the U.S. West, and presents a model of regional timber and product market impacts. The issue of economics is vital to the debate about fire management, and this paper presents market implications of two...
Persistent link: https://www.econbiz.de/10009429452