Publication Details
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Title: Chemical and physical analyses of selected plants and soils from Puerto Rico (1981-2000)
Author(s): Sanchez, M.J.; [External Site: Opens in New Window] Lopez, E.; [External Site: Opens in New Window] Lugo, A.E. [External Site: Opens in New Window]
Year: 2015
Source: Gen. Tech. Rep. IITF GTR-45. Rio Piedras, PR: U.S. Department of Agriculture Forest Service, International Institute of Tropical Forestry. 85 p. [Text, tables 8 and 9 on CD-ROM]
Abstract: The International Institute of Tropical Forestry’s chemistry laboratory, established in 1981 in Puerto Rico, has the capacity to analyze total and available elements in soil and plant parts, including aluminum, calcium, carbon, chromium, iron, manganese, magnesium, nickel, nitrogen, phosphorus, potassium, and sulfur as well as ash, loss on ignition, and organic matter. In 1981 the laboratory conducted 93 analyses for two investigators; in 1990, it analyzed samples in 10 projects for 8 investigators for a total of 14,840 analyses. By 2000, the laboratory analyzed samples in 21 projects for 16 investigators, for a total of 47, 614 analyses. This document contains the results of most analyses conducted at the laboratory from 1981 to 2000. Sanchez et al. (1997) reported results up to 1990, and here we update that report to the year 2000. Our objective continues to be making available in one place all the chemical and physical data that we develop in our laboratory. With the increased importance of the field of ecological stoichiometry (Sterner and Elser 2002), the relevance of data compendia such as this one increases. Most of these data are for vegetation (mostly forests) and soils of Puerto Rico. Not included here (but available in the laboratory) are data for other parts of the world, particularly from Argentina. The chemical composition of plant parts or soil is summarized by plant species, soil order, and geology, or parent material.
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