Szczegóły publikacji
Opis bibliograficzny
Activity of phosphatases and microbial phosphorus under various tree species growing on reclaimed technosols / Marcin CHODAK, Katarzyna SROKA, Marcin Pietrzykowski // Geoderma ; ISSN 0016-7061. — 2021 — vol. 401 art. no. 115320, s. 1–10. — Bibliogr. s. 9–10, Abstr. — Publikacja dostępna online od: 2021-06-27
Autorzy (3)
- AGHChodak Marcin
- AGHSroka Katarzyna
- Pietrzykowski Marcin
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 135369 |
|---|---|
| Data dodania do BaDAP | 2021-07-30 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.geoderma.2021.115320 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Geoderma |
Abstract
Tree species forming a symbiosis with N-fixing bacteria (N-fixing plants) may alleviate P deficiency in afforested technosols by increasing activities of phosphatases. The objective of this study was to compare the effect of rhizobial and actinorhizal N-fixing tree species and non-N-fixing species on the activity of phosphatases in various technosols. Soil samples were taken at two depths (0 - 5 cm and 5 - 20 cm) under black locust (Robinia pseudoaccaccia), black alder (Alnus glutinosa), silver birch (Betula pendula) and Scots pine (Pinus sylvestris) stands growing on technosols developing from Quaternary sands, fly ashes after lignite combustion as well as acidic and alkaline Miocene clays. The samples were measured for the contents of organic carbon (C-org), total nitrogen (NO and total phosphorus (P-t), texture and pH in H2O and KCl. Microbial analyses included determination of microbial biomass carbon (C-mic) and phosphorus (P-mic), basal respiration rate (RESP) as well as activities of acid and alkaline phosphatase and inorganic pyrophosphatase. Enzyme activities were expressed per soil dry (AcdPho, AlkPho, PyroPho for acid phosphatase, alkaline phosphatase and and inorganic pyrophosphatase, respectively) and per unit of C-mic, as specific enzyme activities (AcdPho(sp), AlkPho(sp) and PyroPho(sp) for acid, alkaline and inorganic pyrophosphatase, respectively). The soils under black locust and alder exhibited higher AcdPho than the soils under non-N-fixing trees. The soils under black locust had also higher AcdPho(sp), AlkPho(sp) and PyroPho(sp) values and the soils under alder AcdPho(sp) compared with the soils under pine and birch. The high N-t content was the major factor positively affecting absolute activities of phosphatases. However, high values of specific activities suggest a strong competition for soil P between N-fixing plants and soil microorganisms. In particular, the high P demand of black locust resulted in more intense microbial release of phosphatases and greater retention of P in microbial biomass. Our study indicated that both N-fixing tree species affected microbial release of enzymes involved in P cycling but the influence of rhizobial black locust was stronger than the influence of actinorhizal alder.
