Cited by 35Soil Carbon and Nitrogen DynamicsSoil erosion and sediment transportClimate change and permafrost

Soil respiration and carbon loss relationship with temperature and land use conversion in freeze–thaw agricultural area

Ouyang, Wei, Lai, Xuehui, Li, Xia, Liu, Heying, Lin, Chunye, Hao, Fanghua·2015·Science of The Total Environment

Abstract

Soil respiration (Rs) was hypothesized to have a special response pattern to soil temperature and land use conversion in the freeze-thaw area. The Rs differences of eight types of land use conversions during agricultural development were observed and the impacts of Rs on soil organic carbon (SOC) loss were assessed. The land use conversions during last three decades were categorized into eight types, and the 141 SOC sampling sites were grouped by conversion type. The typical soil sampling sites were subsequently selected for monitoring of soil temperature and Rs of each land use conversion types. The Rs correlations with temperature at difference depths and different conversion types were identified with statistical analysis. The empirical mean error model and the biophysical theoretical model with Arrhenius equation about the Rs sensitivity to temperature were both analyzed and shared the similar patterns. The temperature dependence of soil respiration (Q10) analysis further demonstrated that the averaged value of eight types of land use in this freeze-thaw agricultural area ranged from 1.15 to 1.73, which was lower than the other cold areas. The temperature dependence analysis demonstrated that the Rs in the top layer of natural land covers was more sensitive to temperature and experienced a large vertical difference. The natural land covers exhibited smaller Rs and the farmlands had the bigger value due to tillage practices. The positive relationships between SOC loss and Rs were identified, which demonstrated that Rs was the key chain for SOC loss during land use conversion. The spatial-vertical distributions of SOC concentration with the 1.5-km grid sampling showed that the more SOC loss in the farmland, which was coincided with the higher Rs in farmlands. The analysis of Rs dynamics provided an innovative explanation for SOC loss in the freeze-thaw agricultural area. The analysis of Rs dynamics provided an innovative explanation for SOC loss in the freeze-thaw agricultural area.

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Crossref · 10.1016/j.scitotenv.2015.06.109

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  • Soil organic carbon can be highly reduced through disturbance such as tillage practices.

    “the SOC can be highly reduced through the disturbance (e.g., tillage practices)”

    From Bioenergy production and environmental impacts (2018) · cites this paper as Ouyang et al. 2015

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Authors
Ouyang, W., Lai, X., Li, X., Liu, H., Lin, C., & Hao, F.
Affiliations
  • Beijing Normal University (CN)
  • Ministry of Ecology and Environment (CN)
Corresponding author
Ouyang, Wei
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2015-11
Volume
533
Pages
215-222
ISSN
0048-9697 (ISSN-L)
OpenAlex
W801406097
Cited by
35
References
43
Citations by year
2026: 1 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 2 · 2021: 5 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 3
FWCI
3.20
Type
journal article
Language
en
Open access
closed
Locations
  • The Science of The Total Environment (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (41371018)
  • Science & Technology Research of China (2012BAD15B05)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Climate change and permafrost
Keywords
soil respiration, soil organic carbon loss, land use conversion, soil temperature, Q10 temperature dependence, Arrhenius model, tillage, agricultural land, vertical distribution of soil carbon, cold regions

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