Bedrock lithology and tree species type influence soil nitrogen dynamics in a temperate forest

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00600244" target="_blank" >RIV/60077344:_____/24:00600244 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/24:00138549 RIV/00216208:11310/24:10487541 RIV/00027073:_____/24:N0000068

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352009424001275?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352009424001275?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geodrs.2024.e00880" target="_blank" >10.1016/j.geodrs.2024.e00880</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bedrock lithology and tree species type influence soil nitrogen dynamics in a temperate forest

Popis výsledku v původním jazyce

Despite significant progress in studying soil organic carbon (SOC) and nitrogen (N) cycling in temperate forest soils, understanding of how bedrock lithology and tree species type influence these parameters remains tentative. To address this, we collected soil samples from three depth intervals and plant materials from two distinct tree species, beech, and lime, from sites within the Hyrcanian Forests (Iran) underlain by carbonate and intermediate volcanic bedrock. C and N elemental concentrations and their stable isotope compositions (δ13C and δ15N) were determined for bulk soil and four SOM fractions, including free particulate organic matter (FPOM), macroaggregates, microaggregates, silt + clay-sized fractions, as well as leaf litter and fine roots. Results indicated that lithology and tree species had no significant relationship with SOC content and δ13C of various soil fractions. Along with their δ15N values, TN contents of bulk soil, FPOM, macro- and microaggregates covaried with tree species and lithology. Total N content in bulk soils underneath lime trees exceeded that found beneath beech trees (0.43 % vs. 0.36 %). In terms of N turnover, volcanic soils showed significantly higher mean 15N enrichment relative to that observed for carbonate soils. The C and N fluxes observed for different tree species and lithologies revealed a 13C and 15N enrichment trend in the following order: macroaggregates< microaggregates< silt and clay-sized particles. Our results showed that underlying lithology influences C and N dynamics in forest soils, and the analysis of the natural abundance of 13C and 15N provides detailed information on C and N cycling and stabilization pathways in soil aggregates. Our findings demonstrate the importance of lithology as a factor in nutrient cycle estimates for terrestrial ecosystems.

Název v anglickém jazyce

Bedrock lithology and tree species type influence soil nitrogen dynamics in a temperate forest

Popis výsledku anglicky

Despite significant progress in studying soil organic carbon (SOC) and nitrogen (N) cycling in temperate forest soils, understanding of how bedrock lithology and tree species type influence these parameters remains tentative. To address this, we collected soil samples from three depth intervals and plant materials from two distinct tree species, beech, and lime, from sites within the Hyrcanian Forests (Iran) underlain by carbonate and intermediate volcanic bedrock. C and N elemental concentrations and their stable isotope compositions (δ13C and δ15N) were determined for bulk soil and four SOM fractions, including free particulate organic matter (FPOM), macroaggregates, microaggregates, silt + clay-sized fractions, as well as leaf litter and fine roots. Results indicated that lithology and tree species had no significant relationship with SOC content and δ13C of various soil fractions. Along with their δ15N values, TN contents of bulk soil, FPOM, macro- and microaggregates covaried with tree species and lithology. Total N content in bulk soils underneath lime trees exceeded that found beneath beech trees (0.43 % vs. 0.36 %). In terms of N turnover, volcanic soils showed significantly higher mean 15N enrichment relative to that observed for carbonate soils. The C and N fluxes observed for different tree species and lithologies revealed a 13C and 15N enrichment trend in the following order: macroaggregates< microaggregates< silt and clay-sized particles. Our results showed that underlying lithology influences C and N dynamics in forest soils, and the analysis of the natural abundance of 13C and 15N provides detailed information on C and N cycling and stabilization pathways in soil aggregates. Our findings demonstrate the importance of lithology as a factor in nutrient cycle estimates for terrestrial ecosystems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geoderma Regional

ISSN

2352-0094

e-ISSN

2352-0094

Svazek periodika

39

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

e00880

Kód UT WoS článku

001343337300001

EID výsledku v databázi Scopus

2-s2.0-85206816081