Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Phosphorus resorption by young beech trees and soil phosphatase activity as dependent on phosphorus availability

Title data

Hofmann, Kerstin ; Heuck, Christine ; Spohn, Marie:
Phosphorus resorption by young beech trees and soil phosphatase activity as dependent on phosphorus availability.
In: Oecologia. Vol. 181 (2016) Issue 2 . - pp. 369-379.
ISSN 1432-1939
DOI: https://doi.org/10.1007/s00442-016-3581-x

Abstract in another language

Motivated by decreasing foliar phosphorus (P) concentrations in Fagus sylvatica L. forests, we studied P recycling depending on P fertilization in mesocosms withjuvenile trees and soils of two contrasting F. sylvatica L.forests in a greenhouse. We hypothesized that forests withlow soil P availability are better adapted to recycle P than forests with high soil P availability. The P resorption efficiency from senesced leaves was significantly higher at the P-poor site (70 %) than at the P-rich site (48 %). P fertilization decreased the resorption efficiency significantly at the P-poor site to 41 %, while it had no effect at the P-rich site. Both acid and alkaline phosphatase activity were higher in the rhizosphere of the P-poor than of the P-rich site by 53 and 27 %, respectively, while the activities did not differin the bulk soil. Fertilization decreased acid phosphataseactivity significantly at the P-poor site in the rhizosphere,but had no effect on the alkaline, i.e., microbial, phosphataseactivity at any site. Acid phosphatase activity in the P-poor soil was highest in the rhizosphere, while in the P-rich soil, it was highest in the bulk soil. We conclude that F. sylvatica resorbed P more efficiently from senescentleaves at low soil P availability than at high P availability and that acid phosphatase activity in the rhizosphere but not in the bulk soil was increased at low P availability. Moreover, we conclude that in the P-rich soil, microbial phosphatases contributed more strongly to total phosphataseactivity than plant phosphatases.Keywords: Forest nutrition, Nutrient resorption, Rhizosphere, Phosphomonoesterase, Plant–microbeinteraction

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER132187
Institutions of the University: Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil Ecology
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 11 Aug 2016 07:50
Last Modified: 11 Aug 2016 07:50
URI: https://eref.uni-bayreuth.de/id/eprint/33889