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A power-driven increment borer for sampling high-density tropical wood
Affiliation:1. Department of Physical Geography, University of Passau, Innstraße 40, 94032 Passau, Germany;2. German Research Centre for Geosciences—GFZ, Section 5.2 Climate Dynamics and Landscape Evolution, Potsdam Dendro Laboratory, Telegrafenberg, 14473 Potsdam, Germany;3. Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 277, Butantã, CEP 09715-030 São Paulo, SP, Brazil;4. Institute of Botany of the Academy of Sciences of the Czech Republic, Zámek 1, 25243 Průhonice, Czech Republic;5. Faculty of Science, Department of Botany, University of South Bohemia, Na Zlaté Stoce 1, 37005 České Budějovice, Czech Republic;6. Department of Forest Ecology, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Kamýcka 129, 16521 Praha 6 Suchdol, Czech Republic;7. FZJ Research Center Jülich, Institute of Bio- and Geosciences, Agrosphere (IBG-3), 52425 Jülich, Germany;1. WSL Swiss Federal Research Institute, Landscape Dynamics, CH-8903, Birmensdorf, Switzerland;2. Khakass Technical Institute, Siberian Federal University, 655017 Abakan, Russia;1. National Agrarian University La Molina. Faculty of Forest Sciences, Herbarium MOL, Peru;2. Department of Forest Sciences, Wood Anatomy and Tree-Ring Laboratory, College of Agriculture “Luiz de Queiroz’’, ESALQ/University of Sao Paulo, Piracicaba, SP, 13.418-900, Brazil;1. Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P. O. Box 5003, 1432, Ås, Norway;2. Department of Land Resources Management and Environmental Protection (LaRMEP), Mekelle University, Mekelle, P.O. Box 231, Ethiopia;1. WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Zürcherstrasse 111, CH-8903 Birmensdorf, Switzerland;2. Forestry and Wood Technology Discipline, Khulna University, Khulna, Bangladesh;3. Department of Forestry & Natural Resources, Purdue University, West Lafayette, IN 47907-2061, United States;4. Center for Research on Sustainable Forests, University of Maine, 5755 Nutting Hall, Orono, ME 04469-5755, United States;5. Rubenstein School of Environment and Natural Resources, University of Vermont, 204E Aiken Center, Burlington, VT 05405, United States;1. Laboratorio de Dendrocronología de Zonas Áridas. CIGEOBIO (CONICET-UNSJ), San Juan, Argentina, Gabinete de Geología Ambiental (INGEO-UNSJ), Av. Ignacio de la Roza 590 (oeste), J5402DCS Rivadavia, San Juan, Argentina;2. Laboratorio de Dendrocronología e Historia Ambiental, IANIGLA-CCT CONICET, Mendoza, Argentina;3. Hémera Centro de Observación de la Tierra, Escuela de Ingeniería Forestal, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile;4. Yunnan Key Laboratory of International Rivers and Transboundary Eco‑Security, Institute of International Rivers and Eco‑Security, Yunnan University, Kunming, China;1. Universidade Federal Fluminense, Instituto de Biologia, Departamento de Biologia Geral, Rua Professor Marcos Waldemar de Freitas Reis, s/n, Campus do Gragoatá, Bloco M, Sala 108, 24210-201 Niterói, Rio de Janeiro, Brazil;2. Cornell University, School of Integrative Plant Science Sciences, L.H. Bailey Hortorium, 14850 Ithaca, NY, USA;3. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Escola Nacional de Botânica Tropical, Diretoria de Pesquisa Científica, Rua Pacheco Leão 915, 22460-030 Rio de Janeiro, Rio de Janeiro, Brazil;4. Universidad Nacional Autónoma de México, Instituto de Biología, Departamento de Botánica, Circuito Zona Deportiva s.n. de Ciudad Universitaria, Coyoacán, 04510 Mexico City, Mexico
Abstract:High-density hardwood trees with large diameters have been found to damage manually operated increment borers, thus limiting their use in the tropics. Therefore, we herein report a new, low-cost gasoline-powered sampling system for high-density tropical hardwood trees with large diameters. This system provides increment cores 15 mm in diameter and up to 1.35 m in length, allowing minimally invasive sampling of tropical hardwood tree species, which, up to the present, could not be collected by conventional 5 or 10 mm increment borers. This system provides a single core sample with ample amount of wood for multidisciplinary analyses, including ring width, stable isotope and wood anatomical measurements. The borer never gets stuck inside stems, even in hollowed trees, cores will never twist during coring, and the gasoline drill gives ample flexibility in the field. It is anticipated that the dendrochronological community will find our technique very useful in the pursuit of tropical tree ring research.
Keywords:Tropical dendrochronology  Tree sampling methods  Gasoline-powered core drill  Increment cores
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