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Articles | Volume 11, issue 2
Articles | Volume 11, issue 2
https://doi.org/10.5194/soil-11-883-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-11-883-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 2
Original research article
 | 
22 Oct 2025
Original research article |  | 22 Oct 2025

Contribution of soil microbial necromass carbon to soil organic carbon fractions and its influencing factors in different grassland types

Shenggang Chen, Yaqi Zhang, Jun Ma, Mingyue Bai, Jinxiao Long, Ming Liu, Yinglong Chen, Jianbin Guo, and Lin Chen

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Short summary
Fungal necromass carbon (FNC) contribution to mineral-associated organic carbon (MAOC) and particulate organic carbon (POC) was higher than bacterial necromass carbon (BNC). In 0–20 cm, FNC and BNC contributed more to MAOC, their contributions shifted toward POC in 20–100 cm. Microbial necromass carbon was affected by total nitrogen, mean annual rainfall, and electrical conductance in 0–20, while affected by available potassium, SOC, and mean annual temperature in 20–100.
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