loading page

Warming drives sustained plant phosphorus demand in a humid tropical forest
  • +9
  • Zhiyang Lie,
  • Wenjuan Huang,
  • kadowaki Kohmei,
  • Guoyi Zhou,
  • Junhua Yan,
  • Josep Penuelas,
  • Jordi Sardans,
  • David T. Tissue,
  • Yuelin Li,
  • Shizhong Liu,
  • Guowei Chu,
  • Juxiu Liu
Zhiyang Lie
South China Botanical Garden
Author Profile
Wenjuan Huang
Iowa State University
Author Profile
kadowaki Kohmei
Kyoto University
Author Profile
Guoyi Zhou
South China Botanical Garden
Author Profile
Junhua Yan
South China Botanical Garden
Author Profile
Josep Penuelas
CSIC-CREAF
Author Profile
Jordi Sardans
CREAF
Author Profile
David T. Tissue
Western Sydney University
Author Profile
Yuelin Li
South China Botanical Garden
Author Profile
Shizhong Liu
South China Botanical Garden
Author Profile
Guowei Chu
South China Botanical Garden
Author Profile
Juxiu Liu
South China Botanical Garden
Author Profile

Abstract

Phosphorus (P) is often one of the most limiting nutrients in highly weathered soils of humid tropical forests, which may regulate the responses of carbon (C) feedback to climate warming. Based on a 7-year continuous field warming experiment conducted by translocating microcosm forest ecosystems from a high-elevation site to low-elevation sites, we detected changes in the ecosystem P cycle in response to warming. We report that warming drives sustained plant P demand by increasing P uptake and thus decreasing foliar N:P. This increased plant P content is supplied by multiple processes including enhanced plant P resorption, soil P mineralization and dissolution without changing litter P mineralization and leachate P. These findings suggest that warming may alleviate initial P deficiency and/or limitation of plant growth and contribute to sustaining plant C fixation in these tropical forests.

Peer review status:UNDER REVIEW

01 Jun 2021Submitted to Ecology Letters
07 Jun 2021Assigned to Editor
07 Jun 2021Submission Checks Completed
09 Jun 2021Reviewer(s) Assigned