C-N-P interactions control climate driven changes in regional patterns of C storage on the North Slope of Alaska Public Deposited

Analytics
http://ir.library.oregonstate.edu/concern/articles/zw12z691n

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Springer and can be found at:  http://link.springer.com/journal/10980

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Context: As climate warms, changes in the carbon (C) balance of arctic tundra will play an important role in the global C balance. The C balance of tundra is tightly coupled to the nitrogen (N) and phosphorus (P) cycles because soil organic matter is the principal source of plant-available nutrients and determines the spatial variation of vegetation biomass across the North Slope of Alaska. Warming will accelerate these nutrient cycles, which should stimulate plant growth. Objectives and methods: We applied the multiple element limitation model to investigate the spatial distribution of soil organic matter and vegetation on the North Slope of Alaska and examine the effects of changes in N and P cycles on tundra C budgets under climate warming. Results: The spatial variation of vegetation biomass on the North Slope is mainly determined by nutrient mineralization, rather than air temperature. Our simulations show substantial increases in N and P mineralization with climate warming and consequent increases in nutrient availability to plants. There are distinctly different changes in N versus P cycles in response to warming. N is lost from the region because the warming-induced increase in N mineralization is in excess of plant uptake. However, P is more tightly cycled than N and the small loss of P under warming can be compensated by entrainment of recently weathered P into the ecosystem cycle. The increase in nutrient availability results in larger C gains in vegetation than C losses from soils and hence a net accumulation of C in the ecosystems. Conclusions: The ongoing climate warming in Arctic enhances mineralization and leads to a net transfer of nutrient from soil organic matter to vegetation, thereby stimulating tundra plant growth and increased C sequestration in the tundra ecosystems. The C balance of the region is predominantly controlled by the internal nutrient cycles, and the external nutrient supply only exerts a minor effect on C budget.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Jiang, Y., Rocha, A. V., Rastetter, E. B., Shaver, G. R., Mishra, U., Zhuang, Q., & Kwiatkowski, B. L. (2016). C–N–P interactions control climate driven changes in regional patterns of C storage on the North Slope of Alaska. Landscape Ecology, 31(1), 195-213. doi:10.1007/s10980-015-0266-5
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2016-02-04T20:41:58Z (GMT). No. of bitstreams: 2 JiangYueyangForestEcosysSocCNPInteractionsControl.pdf: 5918644 bytes, checksum: 15d89c444d8dd6e233c7f414201af49f (MD5) JiangYueyangForestEcosysSocCNPInteractionsControl(SupplementaryMaterial).pdf: 49932 bytes, checksum: a912dc27be44fe9cd82459137a6c933f (MD5) Previous issue date: 2016-01
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-02-04T20:41:58Z (GMT) No. of bitstreams: 2 JiangYueyangForestEcosysSocCNPInteractionsControl.pdf: 5918644 bytes, checksum: 15d89c444d8dd6e233c7f414201af49f (MD5) JiangYueyangForestEcosysSocCNPInteractionsControl(SupplementaryMaterial).pdf: 49932 bytes, checksum: a912dc27be44fe9cd82459137a6c933f (MD5)
  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2016-02-04T20:41:42Z No. of bitstreams: 2 JiangYueyangForestEcosysSocCNPInteractionsControl.pdf: 5918644 bytes, checksum: 15d89c444d8dd6e233c7f414201af49f (MD5) JiangYueyangForestEcosysSocCNPInteractionsControl(SupplementaryMaterial).pdf: 49932 bytes, checksum: a912dc27be44fe9cd82459137a6c933f (MD5)

Relationships

Parents:

This work has no parents.

Last modified Default

Items

Thumbnail Title Date Uploaded Visibility Actions
5h73px76q?file=thumbnail JiangYueyangForestEcosysSocCNPInteractionsControl.pdf 07/26/2017 Public
Ww72bd40v?file=thumbnail JiangYueyangForestEcosysSocCNPInteractionsControl(SupplementaryMaterial).pdf 07/26/2017 Public