Changes in soil carbon and nitrogen accessibility with the application of biochars with different morphological and physical characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922947" target="_blank" >RIV/60461373:22310/21:43922947 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41210/21:85491

Výsledek na webu

<a href="https://doi.org/10.1007/s11368-021-02910-5" target="_blank" >https://doi.org/10.1007/s11368-021-02910-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11368-021-02910-5" target="_blank" >10.1007/s11368-021-02910-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in soil carbon and nitrogen accessibility with the application of biochars with different morphological and physical characteristics

Popis výsledku v původním jazyce

Purpose The recent literature indicates that, depending on the feedstocks and pyrolysis temperature, biochar can be a good source of nutrients. On the contrary, some biochars are not good sources of available carbon and other nutrients, but their porous structure seems to be a suitable microenvironment for microbial colonization. We investigated the response of soil biological parameters, microbial biomass carbon and nitrogen (MBC and MBN), in relation to mobile N species. Material and methods Five different biochars were produced at different temperatures (300, 350, 400, 450, and 500 degrees C) from the same feedstock (woodchips). The physicochemical and morphological characteristics of the individual biochar samples were described, and incubation was carried out with the application of 2% biochar to two different soil types (luvisol and fluvisol). Results and discussion The addition of 2% biochar did not change the pH in the slightly acid soils used in the experiment, in spite of the alkaline character of biochar. The increasing amounts of total and nitrate-available nitrogen during the experiment are probably related to changes in soil microbial activity. The amount of soluble carbon was constant during the experiment, confirming its stability in the soil, most likely because of the high amount of lignin in the feedstock. The influence of biochar on the soil microbiome was determined on the basis of the concentrations of MBC and MBN. Microbial biomass was increased in both soils treated with biochar produced at lower temperatures. Conclusions The physicochemical characteristics of the biochar as well as the sorption behavior of N-NO3- and N-NH4+ indicate that at a pyrolysis temperature of 400 degrees C, biochar properties change substantially. However, these findings are only valid for biochar produced from woodchips, and the long-term effects of biochar application on soil properties need to be investigated in further studies.

Název v anglickém jazyce

Changes in soil carbon and nitrogen accessibility with the application of biochars with different morphological and physical characteristics

Popis výsledku anglicky

Purpose The recent literature indicates that, depending on the feedstocks and pyrolysis temperature, biochar can be a good source of nutrients. On the contrary, some biochars are not good sources of available carbon and other nutrients, but their porous structure seems to be a suitable microenvironment for microbial colonization. We investigated the response of soil biological parameters, microbial biomass carbon and nitrogen (MBC and MBN), in relation to mobile N species. Material and methods Five different biochars were produced at different temperatures (300, 350, 400, 450, and 500 degrees C) from the same feedstock (woodchips). The physicochemical and morphological characteristics of the individual biochar samples were described, and incubation was carried out with the application of 2% biochar to two different soil types (luvisol and fluvisol). Results and discussion The addition of 2% biochar did not change the pH in the slightly acid soils used in the experiment, in spite of the alkaline character of biochar. The increasing amounts of total and nitrate-available nitrogen during the experiment are probably related to changes in soil microbial activity. The amount of soluble carbon was constant during the experiment, confirming its stability in the soil, most likely because of the high amount of lignin in the feedstock. The influence of biochar on the soil microbiome was determined on the basis of the concentrations of MBC and MBN. Microbial biomass was increased in both soils treated with biochar produced at lower temperatures. Conclusions The physicochemical characteristics of the biochar as well as the sorption behavior of N-NO3- and N-NH4+ indicate that at a pyrolysis temperature of 400 degrees C, biochar properties change substantially. However, these findings are only valid for biochar produced from woodchips, and the long-term effects of biochar application on soil properties need to be investigated in further studies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10500 - Earth and related environmental sciences

Projekt

<a href="/cs/project/GA19-02836S" target="_blank" >GA19-02836S: Biochar: valorizace pevných odpadů a zlepšení půdních vlastností</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Soils and Sediments

ISSN

1439-0108

e-ISSN

1614-7480

Svazek periodika

21

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

1644-1658

Kód UT WoS článku

000621263400001

EID výsledku v databázi Scopus

2-s2.0-85101526790