The effects of shallow flooding on carbon mineralization in a paddy soil: Constraints observed with the addition of straw

The effects of shallow flooding on carbon mineralization in a paddy soil: Constraints observed with the addition of straw

Major controversy still exists regarding the effects of flooding conditions on soil carbon (C) mineralization. Two 44-day incubation experiments were conducted to explore the effects of shallow flooding (SF) on the C mineralization of paddy soil at different temperatures (constant temperatures of 15...

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Veröffentlicht in:Applied soil ecology : a section of Agriculture, ecosystems & environment ecosystems & environment, 2022-02, Vol.170, p.104249, Article 104249
Hauptverfasser: Zeng, Manman, Liu, Junyan, Chen, Yangyang, Li, Song, Wang, Yingyan, Li, Jiangwen, Hu, Jin, Ci, En
Format: Artikel
Sprache:eng
Schlagworte:
Carbon mineralization
Dissolved oxygen
Paddy soil
Shallow flooding
Straw addition
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Zusammenfassung:Major controversy still exists regarding the effects of flooding conditions on soil carbon (C) mineralization. Two 44-day incubation experiments were conducted to explore the effects of shallow flooding (SF) on the C mineralization of paddy soil at different temperatures (constant temperatures of 15, 20 and 25 °C, and variable temperatures between 15 and 25 °C) and rice-straw addition levels (0 to 60 g kg-1 soil), respectively. The results indicated that when compared with the no-flooding (70% water-holding capacity) conditions, the SF conditions could significantly increase the total cumulative C mineralized (C44) at each temperature regime (P 
ISSN:0929-1393
1873-0272
DOI:10.1016/j.apsoil.2021.104249