A multivariate approach to the analysis of factorial fertilization experiments in Alaskan arctic tundra

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TitleA multivariate approach to the analysis of factorial fertilization experiments in Alaskan arctic tundra
Publication TypeJournal Article
Year of Publication1982
AuthorsLechowicz, MJ, Shaver, GR
JournalEcology
Volume63
Issue4
Pagination1029-1038
Accession NumberARC329
Keywordsplant communities D 04140 Taiga/tundra
Abstract

Canonical analysis was used to analyze the results of factorial NPK fertilization trials on six species growing in arctic tundra at Eagle Creek, Alaska, USA (latitude 65 degree 10'N, longitude 145 degree 30'W): the graminoids Eriophorum vaginatum and Carex bigelowii , the deciduous shrubs Betula nana and Vaccinium uliginosum , and the evergreen shrubs V. vitis-idaea and Ledum palustre . In an extension of early univariate analyses, multivariate comparisons were made based on shoot concentrations of N, P, K, Ca, and Mg as a measure of overall nutrient balance. In the unfertilized controls, the graminoids were richer in K than the other growth forms, deciduous shrubs had higher concentrations of N relative to P and Ca than the evergreen shrubs, and the deciduous-evergreen contrasts were greatest early in the growing season.

DOI10.2307/1937242
Short TitleA multivariate approach to the analysis of factorial fertilization experiments in Alaskan arctic tundra