Effects of tree dieback on lake water acidity in the unmanaged catchment of Plesne Lake, Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F19%3A43899407" target="_blank" >RIV/60076658:12310/19:43899407 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60077344:_____/19:00506775

Výsledek na webu

<a href="https://aslopubs.onlinelibrary.wiley.com/doi/epdf/10.1002/lno.11139" target="_blank" >https://aslopubs.onlinelibrary.wiley.com/doi/epdf/10.1002/lno.11139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/lno.11139" target="_blank" >10.1002/lno.11139</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of tree dieback on lake water acidity in the unmanaged catchment of Plesne Lake, Czech Republic

Popis výsledku v původním jazyce

Terrestrial exports of protons (H+), nitrate (NO3-), dissolved organic carbon including organic acid anions (A(-)), phosphorus (P), base cations, and ionic aluminum (Al-i) underwent pronounced changes after bark beetle-induced tree dieback (2004-2008) in a nitrogen-saturated, chronically acidified but recovering catchment, Plesne Lake, Czech Republic. After a short decline in lake water pH immediately after tree dieback, the ecosystem recovery from acidification accelerated and the carbonate buffering system was restored by 2011, after similar to 6 decades of depletion by acid rain. Major reasons for this rapid transition were changes in intensity of in-lake biogeochemical (H+ producing/removing) processes caused by changing concentrations and proportions of solutes exported from soil to surface water. In-lake denitrification, elevated NO3- assimilation (due to elevated P input), and photochemical/microbial oxidation of A(-) were the most important H+ removing processes, while Al-i hydrolysis was the most important H+ source. Phytoplankton biomass increased with elevated P inputs and increasing P availability, which resulted from reduced in-lake formation of Al hydroxide (and thus less adsorption of P) and more intensive P recycling by zooplankton. The rapidly changing lake water chemistry and elevated P availability after tree dieback in the catchment thus have enabled further biological recovery of Plesne Lake.

Název v anglickém jazyce

Effects of tree dieback on lake water acidity in the unmanaged catchment of Plesne Lake, Czech Republic

Popis výsledku anglicky

Terrestrial exports of protons (H+), nitrate (NO3-), dissolved organic carbon including organic acid anions (A(-)), phosphorus (P), base cations, and ionic aluminum (Al-i) underwent pronounced changes after bark beetle-induced tree dieback (2004-2008) in a nitrogen-saturated, chronically acidified but recovering catchment, Plesne Lake, Czech Republic. After a short decline in lake water pH immediately after tree dieback, the ecosystem recovery from acidification accelerated and the carbonate buffering system was restored by 2011, after similar to 6 decades of depletion by acid rain. Major reasons for this rapid transition were changes in intensity of in-lake biogeochemical (H+ producing/removing) processes caused by changing concentrations and proportions of solutes exported from soil to surface water. In-lake denitrification, elevated NO3- assimilation (due to elevated P input), and photochemical/microbial oxidation of A(-) were the most important H+ removing processes, while Al-i hydrolysis was the most important H+ source. Phytoplankton biomass increased with elevated P inputs and increasing P availability, which resulted from reduced in-lake formation of Al hydroxide (and thus less adsorption of P) and more intensive P recycling by zooplankton. The rapidly changing lake water chemistry and elevated P availability after tree dieback in the catchment thus have enabled further biological recovery of Plesne Lake.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

<a href="/cs/project/GA19-16605S" target="_blank" >GA19-16605S: Mezioborová studie cyklu prvků v horských jezerech a jejich lesních povodích zmlazujících se po odumření stromového patra</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Limnology and Oceanography

ISSN

0024-3590

e-ISSN

—

Svazek periodika

64

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1614-1626

Kód UT WoS článku

000474301200014

EID výsledku v databázi Scopus

2-s2.0-85068482029