Forest biodiversity, productivity, and associated biotic and abiotic factors in USA

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This publication includes plot level information from USA forests, which has the following variables: Plot ID, Ecoregion, MAT, TAP, Aridity index, Stem density, Stand age, C:N ratio, Richness, and Productivity.

Version 1.0 - published on 12 Nov 2018 doi:10.4231/R7SB440D - cite this Archived on 12 Dec 2018

Licensed under CC0 1.0 Universal

Description

Data included in this publication were used in a biodiversity-productivity relationship study titled "Impacts of climate on the biodiversity-productivity relationship in natural forests" in the journal of  Nature Communications.

Understanding biodiversity-productivity relationships (BPRs) is of theoretical importance, and has important management implications.  Most work on BPRs has focused on simple and/or experimentally assembled communities, and it is unclear how these observed BPRs can be extended to complex natural forest ecosystems.  Using data from over 115,000 forest plots across the contiguous United States, we show that the bivariate BPRs are positive in dry climates and hump-shaped in mesic.  When considering other site characteristics, BPRs change to neutral in dry climates and remain hump-shaped in humid sites.  Our results indicate that climatic variation is an underlying determinant of contrasting BPRs observed across a large spatial extent, while both biotic factors (e.g., stand age and density) and abiotic factors (e.g., soil properties) can impact BPRs within a given climate unit.  These findings suggest that tradeoffs need be made when considering whether to maximize productivity vs. conserve biodiversity, especially in mesic climates.

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