Francis A. Roesch, Todd A Schroeder, Charles A Price
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引用次数: 0
摘要
本文以美国农业部林务局的森林资源清查与分析 (FIA) 计划和美国国家冠军树登记 (NRCT) 正在进行的寻找美国各自然生成树种最大标本的工作为例,说明概率取样和公民科学工作如何能够相辅相成。我们开发了一种比值统计量(Zs),利用每个数据库中某一树种最大树木的大小差异,根据找到比当前国家冠军树更大标本的假定难易程度对树种进行排序。我们的结果表明,在 FIA 记录的候选树种中,有 92 个树种没有全国冠军,有 65 个树种应该很容易找到新的冠军。在补充表格中,我们显示了九十四个被 FIA 列为可在 NRCT 中观察到但未在 FIA 样本中记录的物种。研究意义:对森林和林业的兴趣总是伴随着对树木,尤其是大树的兴趣。本研究同时分析了了解树木的两种截然不同的方法,揭示了它们之间的互补性。这两种方式分别是美国农业部林业局森林资源调查与分析项目(FIA)开展的概率抽样调查,以及被称为 "全国冠军树登记册"(NRCT)的公民科学调查。我们开发了一种统计方法,可以帮助树木侦探找到冠军树,并为森林资源清查与分析从业人员提供了一种质量控制措施,同时也表明了哪些树种可以从样本密度的增加中获益。
The USDA Forest Service’s Forest Inventory and Analysis Database and the National Register of Champion Trees — A Potentially Symbiotic Relationship
This article shows how probability sampling and citizen science efforts can complement each other, using the USDA Forest Service’s Forest Inventory and Analysis (FIA) program and the ongoing search by the National Register of Champion Trees (NRCT) for the largest specimen of each naturally occurring tree species in the United States as an example. We develop a ratio statistic (Zs) that uses the difference in size of the largest tree of a species from each database to order the tree species according to the assumed ease with which a larger specimen than the current national champion might be found. Our results show ninety-two candidate species that have been recorded by FIA for which there is no national champion and sixty-five species for which a new champion should be easy to find. In a supplemental table, we show ninety-four species listed as observable by FIA in the NRCT but not recorded in the FIA sample.
Study Implications: An interest in forests and forestry is always accompanied by an interest in trees, especially very big trees. Two very different ways of learning about trees are analyzed concurrently in a way that reveals their complementarity. The two efforts are the probability sample, conducted by the USDA Forest Service’s Forest Inventory and Analysis (FIA) Program, and the citizen science effort known as the National Register of Champion Trees (NRCT). We develop a statistic that will help tree sleuths find champion trees and provide FIA practitioners with a quality control measure and an indication of which species would benefit from an increase in sample intensity.
期刊介绍:
The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry. The Journal is published bimonthly: January, March, May, July, September, and November.