Effects of soil development time and litter quality on soil carbon sequestration: Assessing soil carbon saturation with a field transplant experiment along a post-mining chronosequence

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F17%3A00474979" target="_blank" >RIV/60077344:_____/17:00474979 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10337128 RIV/00216208:11690/17:10337128

Výsledek na webu

<a href="http://dx.doi.org/10.1002/ldr.2580" target="_blank" >http://dx.doi.org/10.1002/ldr.2580</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ldr.2580" target="_blank" >10.1002/ldr.2580</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effects of soil development time and litter quality on soil carbon sequestration: Assessing soil carbon saturation with a field transplant experiment along a post-mining chronosequence

Popis výsledku v původním jazyce

In previous studies, the rate of soil carbon (C) sequestration decreased with increasing age of post-mining soils. It was also shown to depend on plant biomass and earthworm bioturbation. Here, a soil transplant experiment was used to determine whether this decrease is caused by soil C saturation or other factors (such as bioturbation and litter input). Soils collected on 15-, 25- and 50-year-old successional sites, dominated by willow (Salix caprea L.) and birch (Betula pendula Roth), and on a 50-year-old site reclaimed by the planting of alder (Alnus glutinosa L.) were placed in plastic boxes that were accessible to soil macrofauna. The boxes were buried in the 50-year-old reclaimed site and supplemented with either alder litter or successional (willow and birch) litter. Soil C content and soil C fractions (hot water C, particulate organic C, particulate organic C bound in aggregates and C bound to mineral soil) were studied. After 1 year, the C content increased by 2-5%, but there was no effect of soil source or litter type. For all C fractions, the relationships between change in C content and initial C content were described by bell-shaped curves. Easily available C fractions were saturated earlier than more recalcitrant fractions. Despite these saturation tendencies in individual soil organic matter pools, the soil was evidently far from saturation after 50 years of soil development. The decrease in C sequestration with soil age previously observed for this soil was probably caused by a decrease in litter input rather than by C saturation.

Název v anglickém jazyce

Effects of soil development time and litter quality on soil carbon sequestration: Assessing soil carbon saturation with a field transplant experiment along a post-mining chronosequence

Popis výsledku anglicky

In previous studies, the rate of soil carbon (C) sequestration decreased with increasing age of post-mining soils. It was also shown to depend on plant biomass and earthworm bioturbation. Here, a soil transplant experiment was used to determine whether this decrease is caused by soil C saturation or other factors (such as bioturbation and litter input). Soils collected on 15-, 25- and 50-year-old successional sites, dominated by willow (Salix caprea L.) and birch (Betula pendula Roth), and on a 50-year-old site reclaimed by the planting of alder (Alnus glutinosa L.) were placed in plastic boxes that were accessible to soil macrofauna. The boxes were buried in the 50-year-old reclaimed site and supplemented with either alder litter or successional (willow and birch) litter. Soil C content and soil C fractions (hot water C, particulate organic C, particulate organic C bound in aggregates and C bound to mineral soil) were studied. After 1 year, the C content increased by 2-5%, but there was no effect of soil source or litter type. For all C fractions, the relationships between change in C content and initial C content were described by bell-shaped curves. Easily available C fractions were saturated earlier than more recalcitrant fractions. Despite these saturation tendencies in individual soil organic matter pools, the soil was evidently far from saturation after 50 years of soil development. The decrease in C sequestration with soil age previously observed for this soil was probably caused by a decrease in litter input rather than by C saturation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

<a href="/cs/project/GAP504%2F12%2F1288" target="_blank" >GAP504/12/1288: Úloha funkčních vlastností listů rostlin při akumaulaci půdní organické hmoty během primární sukcese</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Land Degradation & Development

ISSN

1085-3278

e-ISSN

—

Svazek periodika

28

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

664-672

Kód UT WoS článku

000394955500025

EID výsledku v databázi Scopus

2-s2.0-84979986773