Carbon and nutrient pools and fluxes in unmanaged mountain Norway spruce forests, and losses after natural tree dieback

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00583771" target="_blank" >RIV/60077344:_____/23:00583771 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41320/23:97146 RIV/60076658:12310/23:43907140

Výsledek na webu

<a href="https://doi.org/10.1016/j.scitotenv.2023.166233" target="_blank" >https://doi.org/10.1016/j.scitotenv.2023.166233</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scitotenv.2023.166233" target="_blank" >10.1016/j.scitotenv.2023.166233</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon and nutrient pools and fluxes in unmanaged mountain Norway spruce forests, and losses after natural tree dieback

Popis výsledku v původním jazyce

Forest areas infected by insects are increasing in Europe and North America due to accelerating climate change. A 2000-2020 mass budget study on major elements (C, N, P, Ca, Mg, K) in the atmosphere-plant-soil-water systems of two unmanaged catchments enabled us to evaluate changes in pools and fluxes related to tree dieback and long-term accumulation/losses during the post-glacial period. A bark-beetle outbreak killed >75% of all trees in a mature mountain spruce forest in one catchment and all dead biomass was left on site. A similar forest in a nearby catchment was only marginally affected. We observed that: (1) the long-term (millennial) C and N accumulation in soils averaged 10-22 and 0.5-1.1kgha(-1)yr(-1), respectively, while losses of Ca, Mg, and K from soils ranged from 0.1 to 2.6kgha(-1)yr(-1). (2) Only <0.8% and <1.5% of the respective total C and N fluxes entering the soil annually from vegetation were permanently stored in soils. (3) The post-disturbance decomposition of dead tree biomass reduced vegetation element pools from 27% (C) to 73% (P) between 2004 and 2019. (4) Tree dieback decreased net atmospheric element inputs to the impacted catchment, and increased theleachingof all elements and gaseous losses of C (similar to 2.3tha(-1)yr(-1)) and N (similar to 14kgha(-1)yr(-1)). The disturbed catchment became a net C source, but similar to 50% of the N released from dead biomass accumulated in soils. (5) Despite the severe forest disturbance, the dissolved losses of Ca and Mg represented 52-58% of their leaching from intact stands during the peaking atmospheric acidification from 1970 to 1990. (6) Disturbance-related net leaching of P, Ca, Mg, and K were 4, 69, 16, and 114kgha(-1), respectively, which represented 7-38% of the losses potentially related to sanitary logging and subsequent removal of the aboveground tree biomass.

Název v anglickém jazyce

Carbon and nutrient pools and fluxes in unmanaged mountain Norway spruce forests, and losses after natural tree dieback

Popis výsledku anglicky

Forest areas infected by insects are increasing in Europe and North America due to accelerating climate change. A 2000-2020 mass budget study on major elements (C, N, P, Ca, Mg, K) in the atmosphere-plant-soil-water systems of two unmanaged catchments enabled us to evaluate changes in pools and fluxes related to tree dieback and long-term accumulation/losses during the post-glacial period. A bark-beetle outbreak killed >75% of all trees in a mature mountain spruce forest in one catchment and all dead biomass was left on site. A similar forest in a nearby catchment was only marginally affected. We observed that: (1) the long-term (millennial) C and N accumulation in soils averaged 10-22 and 0.5-1.1kgha(-1)yr(-1), respectively, while losses of Ca, Mg, and K from soils ranged from 0.1 to 2.6kgha(-1)yr(-1). (2) Only <0.8% and <1.5% of the respective total C and N fluxes entering the soil annually from vegetation were permanently stored in soils. (3) The post-disturbance decomposition of dead tree biomass reduced vegetation element pools from 27% (C) to 73% (P) between 2004 and 2019. (4) Tree dieback decreased net atmospheric element inputs to the impacted catchment, and increased theleachingof all elements and gaseous losses of C (similar to 2.3tha(-1)yr(-1)) and N (similar to 14kgha(-1)yr(-1)). The disturbed catchment became a net C source, but similar to 50% of the N released from dead biomass accumulated in soils. (5) Despite the severe forest disturbance, the dissolved losses of Ca and Mg represented 52-58% of their leaching from intact stands during the peaking atmospheric acidification from 1970 to 1990. (6) Disturbance-related net leaching of P, Ca, Mg, and K were 4, 69, 16, and 114kgha(-1), respectively, which represented 7-38% of the losses potentially related to sanitary logging and subsequent removal of the aboveground tree biomass.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Science of the Total Environment

ISSN

0048-9697

e-ISSN

1879-1026

Svazek periodika

903

Číslo periodika v rámci svazku

Aug

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

166233

Kód UT WoS článku

001066827300001

EID výsledku v databázi Scopus

2-s2.0-85167790545