دورية أكاديمية
Parent material influences soil abiotic N2O production from chemical oxidation of hydroxylamine
| العنوان: | Parent material influences soil abiotic N2O production from chemical oxidation of hydroxylamine |
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| المؤلفون: | Li, Suyun, Gan, Cai, Cai, Danni, Ma, Jiani, Liu, Shurong |
| المصدر: | eISSN |
| سنة النشر: | 2023 |
| المجموعة: | Copernicus Publications: E-Journals |
| الوصف: | Hydroxylamine (NH 2 OH) and nitrite (NO 2 - ) represent pivotal nitrification intermediates that substantially govern soil abiotic N 2 O production. Yet, the intricate factors influencing the abiotic formation of N 2 O from chemical reactions involving NH 2 OH and NO 2 - remain uncertain. This study was designed to reveal the impacts of land use type and parent material on soil abiotic N 2 O production in response to NH 2 OH and NO 2 - amendments. Our investigation revealed that land use type exerted no significant influence on abiotic production of N 2 O with NH 2 OH and NO 2 - addition. Nevertheless, the parent material exhibited a notable ( P < 0.01) effect on N 2 O production intrigued by NH 2 OH addition. Specifically, a markedly higher abiotic N 2 O production from NH 2 OH was observed in soils developed from Quaternary red clay than those derived from granite. Subsequent analysis demonstrated that the soils originating from Quaternary red clay displayed significantly higher manganese (Mn) content in comparison to those originating from granite. This finding consistently aligns with the close correlation between the abiotic N 2 O production via chemical oxidation of NH 2 OH and Mn content of soil. Furthermore, the site preference (SP) values for N 2 O arising from NH 2 OH and NO 2 - addition were 25–30 ‰ and around 20 ‰, respectively, aligning with the expected ranges characterizing ammonia oxidation and chemodenitrification processes. Our findings provide valuable insight into the distinct influence of parent material on soil abiotic N 2 O production via chemical oxidation of NH 2 OH, contributing to a better understanding of the underlying mechanisms, and highlight the significance of soil factors in regulating abiotic N 2 O production within soil ecosystems. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2033Test/ |
| DOI: | 10.5194/egusphere-2023-2033 |
| الإتاحة: | https://doi.org/10.5194/egusphere-2023-2033Test https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2033Test/ |
| رقم الانضمام: | edsbas.41A536F3 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/egusphere-2023-2033 |
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