Assessment of sampling strategies utilizing auxiliary information in large-scale forest inventory
نویسندگان
چکیده
منابع مشابه
A large-scale forest landscape model incorporating multi-scale processes and utilizing forest inventory data
Two challenges confronting forest landscape models (FLMs) are how to simulate fine, standscale processes while making large-scale (i.e., .10 ha) simulation possible, and how to take advantage of extensive forest inventory data such as U.S. Forest Inventory and Analysis (FIA) data to initialize and constrain model parameters. We present the LANDIS PRO model that addresses these needs. LANDIS PRO...
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An efficient and accurate inventory of forest fuels at large scales is critical for assessment of forest fire hazards across landscapes. The Forest Inventory and Analysis (FIA) program of the USDA Forest Service conducts a national inventory of fuels along with blind remeasurement of a portion of inventory plots to monitor and improve data quality. The goal of this study was to evaluate the mea...
متن کاملEstimation of local forest attributes, utilizing two-phase sampling and auxiliary data
This thesis examines the feasibility of a forest inventory method based on two-phase sampling in estimating forest attributes at the stand or substand levels for forest management purposes. The method is based on multi-source forest inventory combining auxiliary data consisting of remote sensing imagery or other geographic information and field measurements. Auxiliary data are utilized as first...
متن کاملAppendix B Sampling Strategies for Timber Inventory
Selective sampling involves choosing samples according to the subjective judgement of the observer. A set of rules may provide a guide to what kind of sample should be selected (Husch et al. 1972). Selective sampling had been widely used in forestry before the advent of statistically sound sampling procedures (Shiver and Borders 1996). The method often involves the inventory team selecting area...
متن کاملSimulating Sampling Efficiency in Airborne Laser Scanning Based Forest Inventory
A simple simulator was developed to test whether airborne laser scanning can be used as a strip sampling tool for forest inventory purposes. The simulator is based on the existing two stages, grid based laser inventory procedure. A population of trees was created using an existing forest stand structure generator. Each tree was represented by means of its 3D-crown model derived from airborne la...
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ژورنال
عنوان ژورنال: Canadian Journal of Forest Research
سال: 2018
ISSN: 0045-5067,1208-6037
DOI: 10.1139/cjfr-2017-0414