Details
| Original language | English |
|---|---|
| Article number | 864 |
| Journal | Nature Communications |
| Volume | 14 |
| Early online date | 16 Feb 2023 |
| Publication status | E-pub ahead of print - 16 Feb 2023 |
Abstract
Phosphorus (P) is an essential and often limiting element that could play a crucial role in terrestrial ecosystem responses to climate warming. However, it has yet remained unclear how different P cycling processes are affected by warming. Here we investigate the response of soil P pools and P cycling processes in a mountain forest after 14 years of soil warming (+4 °C). Long-term warming decreased soil total P pools, likely due to higher outputs of P from soils by increasing net plant P uptake and downward transportation of colloidal and particulate P. Warming increased the sorption strength to more recalcitrant soil P fractions (absorbed to iron oxyhydroxides and clays), thereby further reducing bioavailable P in soil solution. As a response, soil microbes enhanced the production of acid phosphatase, though this was not sufficient to avoid decreases of soil bioavailable P and microbial biomass P (and biotic phosphate immobilization). This study therefore highlights how long-term soil warming triggers changes in biotic and abiotic soil P pools and processes, which can potentially aggravate the P constraints of the trees and soil microbes and thereby negatively affect the C sequestration potential of these forests.
ASJC Scopus subject areas
Sustainable Development Goals
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In: Nature Communications, Vol. 14, 864, 16.02.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Long-term soil warming decreases microbial phosphorus utilization by increasing abiotic phosphorus sorption and phosphorus losses
AU - Tian, Ye
AU - Shi, Chupei
AU - Malo, Carolina Urbina
AU - Kwatcho Kengdo, Steve
AU - Heinzle, Jakob
AU - Inselsbacher, Erich
AU - Ottner, Franz
AU - Borken, Werner
AU - Michel, Kerstin
AU - Schindlbacher, Andreas
AU - Wanek, Wolfgang
N1 - Funding Information: This study was funded by the Austrian Science Fund (FWF; project I 3745). We sincerely thank Christian Holtermann for field site maintenance, Margarete Watzka, Sabine Maringer, Sabrina Pober, Ludwig Seidl, and Renate Krauß for technical and material support, and Johann Püspök for laboratory guidance. Moreover, we acknowledge the inspirational communications and mutual help from people in the TER (Terrestrial Ecosystem Research) laboratories at the University of Vienna.
PY - 2023/2/16
Y1 - 2023/2/16
N2 - Phosphorus (P) is an essential and often limiting element that could play a crucial role in terrestrial ecosystem responses to climate warming. However, it has yet remained unclear how different P cycling processes are affected by warming. Here we investigate the response of soil P pools and P cycling processes in a mountain forest after 14 years of soil warming (+4 °C). Long-term warming decreased soil total P pools, likely due to higher outputs of P from soils by increasing net plant P uptake and downward transportation of colloidal and particulate P. Warming increased the sorption strength to more recalcitrant soil P fractions (absorbed to iron oxyhydroxides and clays), thereby further reducing bioavailable P in soil solution. As a response, soil microbes enhanced the production of acid phosphatase, though this was not sufficient to avoid decreases of soil bioavailable P and microbial biomass P (and biotic phosphate immobilization). This study therefore highlights how long-term soil warming triggers changes in biotic and abiotic soil P pools and processes, which can potentially aggravate the P constraints of the trees and soil microbes and thereby negatively affect the C sequestration potential of these forests.
AB - Phosphorus (P) is an essential and often limiting element that could play a crucial role in terrestrial ecosystem responses to climate warming. However, it has yet remained unclear how different P cycling processes are affected by warming. Here we investigate the response of soil P pools and P cycling processes in a mountain forest after 14 years of soil warming (+4 °C). Long-term warming decreased soil total P pools, likely due to higher outputs of P from soils by increasing net plant P uptake and downward transportation of colloidal and particulate P. Warming increased the sorption strength to more recalcitrant soil P fractions (absorbed to iron oxyhydroxides and clays), thereby further reducing bioavailable P in soil solution. As a response, soil microbes enhanced the production of acid phosphatase, though this was not sufficient to avoid decreases of soil bioavailable P and microbial biomass P (and biotic phosphate immobilization). This study therefore highlights how long-term soil warming triggers changes in biotic and abiotic soil P pools and processes, which can potentially aggravate the P constraints of the trees and soil microbes and thereby negatively affect the C sequestration potential of these forests.
UR - http://www.scopus.com/inward/record.url?scp=85148114546&partnerID=8YFLogxK
U2 - 10.1038/s41467-023-36527-8
DO - 10.1038/s41467-023-36527-8
M3 - Article
C2 - 36792624
AN - SCOPUS:85148114546
VL - 14
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 864
ER -