A comprehensive comparison of perpendicular distance sampling methods for sampling downed coarse woody debris
作者： J. H. Gove , M. J. Ducey , H. T. Valentine , M. S. Williams
关键词:
摘要: Many new methods for sampling down coarse woody debris have been proposed in the last dozen or so years. One of most promising terms field application, perpendicular distance (PDS), has several variants that progressively introduced literature. In this study, we provide an overview different PDS and comprehensive comparison their associated estimator performance. Additionally, two estimators are to existing pool. Simulations used determine efficiency competing protocols estimators. The simulation results corroborate theoreticalunbiasednessoftheestimatorsforPDSinallforms.Inaddition,whilethereissomedifferenceinvariance among protocols, overall difference is small, depends on attribute be estimated. Therefore, choice which variant use applications will depend conditions attributes
oup.com
oxfordjournals.org
paperity.org参考文章(30)
Pieter G. de Vries, Sampling theory for forest inventory. Springer Verlag. ,(1986) , 10.1007/978-3-642-71581-5
Eric A. Suess, Bruce E. Trumbo, Introduction to Probability Simulation and Gibbs Sampling with R ,(2011)
Harry T. Valentine, Jeffrey H. Gove, Mark J. Ducey, Timothy G. Gregoire, Michael S. Williams, Estimating the Carbon in Coarse Woody Debris with Perpendicular Distance Sampling Springer Netherlands. pp. 73- 87 ,(2008) , 10.1007/978-1-4020-8506-2_6
P. C. van Deusen, Critical height versus importance sampling for log volume: does critical height prevail? Forest Science. ,vol. 36, pp. 930- 938 ,(1990)
M S Williams, H T Valentine, J H Gove, M J Ducey, Additional results for perpendicular distance sampling Canadian Journal of Forest Research. ,vol. 35, pp. 961- 966 ,(2005) , 10.1139/X05-023
Jeffrey H. Gove, Mark J. Ducey, Harry T. Valentine, Michael S. Williams, A distance limited method for sampling downed coarse woody debris Forest Ecology and Management. ,vol. 282, pp. 53- 62 ,(2012) , 10.1016/J.FORECO.2012.06.014
Clifford B. Cordy, An extension of the Horvitz—Thompson theorem to point sampling from a continuous universe Statistics & Probability Letters. ,vol. 18, pp. 353- 362 ,(1993) , 10.1016/0167-7152(93)90028-H
Shawn Fraver, Anna Ringvall, Bengt Gunnar Jonsson, Refining volume estimates of down woody debris Canadian Journal of Forest Research. ,vol. 37, pp. 627- 633 ,(2007) , 10.1139/X06-269
H T Valentine, J H Gove, T G Gregoire, Monte Carlo approaches to sampling forested tracts with lines or points Canadian Journal of Forest Research. ,vol. 31, pp. 1410- 1424 ,(2001) , 10.1139/X01-080
Michael S. Williams, New approach to areal sampling in ecological surveys Forest Ecology and Management. ,vol. 154, pp. 11- 22 ,(2001) , 10.1016/S0378-1127(00)00601-0