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Sci Adv. 2017 Apr 05;3(4):e1601880. doi: 10.1126/sciadv.1601880. eCollection 2017 Apr.

The economic value of grassland species for carbon storage.

Science advances

Bruce A Hungate, Edward B Barbier, Amy W Ando, Samuel P Marks, Peter B Reich, Natasja van Gestel, David Tilman, Johannes M H Knops, David U Hooper, Bradley J Butterfield, Bradley J Cardinale

Affiliations

  1. Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ 86011, USA.
  2. Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA.
  3. Department of Economics and Finance, University of Wyoming, Laramie, WY 82071, USA.
  4. Department of Agricultural and Consumer Economics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
  5. Department of Forest Resources, University of Minnesota, St. Paul, MN 55108, USA.
  6. Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales 2753, Australia.
  7. Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN 55108, USA.
  8. School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
  9. Department of Biology, Western Washington University, Bellingham, WA 98225, USA.
  10. School of Natural Resources and Environment, University of Michigan, Ann Arbor, MI 48109, USA.

PMID: 28435876 PMCID: PMC5381958 DOI: 10.1126/sciadv.1601880

Abstract

Carbon storage by ecosystems is valuable for climate protection. Biodiversity conservation may help increase carbon storage, but the value of this influence has been difficult to assess. We use plant, soil, and ecosystem carbon storage data from two grassland biodiversity experiments to show that greater species richness increases economic value: Increasing species richness from 1 to 10 had twice the economic value of increasing species richness from 1 to 2. The marginal value of each additional species declined as species accumulated, reflecting the nonlinear relationship between species richness and plant biomass production. Our demonstration of the economic value of biodiversity for enhancing carbon storage provides a foundation for assessing the value of biodiversity for decisions about land management. Combining carbon storage with other ecosystem services affected by biodiversity may well enhance the economic arguments for conservation even further.

Keywords: biodiversity; carbon storage; economic value; grassland; social cost of carbon; species diversity; species richness; valuation

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