ORIGINAL RESEARCH article
Front. Environ. Sci.
Sec. Soil Processes
Volume 13 - 2025 | doi: 10.3389/fenvs.2025.1498089
This article is part of the Research TopicSoil Carbon Sequestration and Microbial Energy MetabolismView all 6 articles
Transformation of Maize Photosynthetic Carbon in Reconstructed soils
Provisionally accepted
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an, China
Select one of your emails
You have multiple emails registered with Frontiers:
Notify me on publication
Please enter your email address:
If you already have an account, please login
You don't have a Frontiers account ? You can register here
The gully erosion control and land construction project was a major land improvement project implemented by human beings to increase the cultivated land area and improve the quality of cultivated land, and the implementation of the project had a great intervention and influence on the carbon cycle. The microcosm experiment was carried out to reveal carbon cycle process of maize photosynthetic carbon in reconstructed soils during gully reclamation using a 14 C continuous labeling technique. The experimental soil came from Nanniwan Town, Yan 'an City. Destructive samplings of maize were conducted after labeling for 100 days.The distribution ratios of photosynthetic carbon in plants, roots and reconstructed soils were 83.96%~85.19%, 9.47~10.55% and 5.49~5.62%, respectively. It was revealed that the renewal rates of the dissolved organic carbon (DOC), microbial biomass carbon (MBC) and soil organic carbon (SOC) in reconstructed soils were 6.72-14.64%, 1.70-7.67% and 0.73-1.99%, respectively. The distribution and transformation of maize photosynthetic carbon had a greater impact on the changes in the DOC and MBC that SOC. It was found that the mineralization rate of maize photosynthetic carbon in reconstructed soils was higher than 0.6 μg/g•d after construction, but with the extension of cultivation time, it slowed down, the decreasing rate increased, and finally stabilized at about 0.15 μg/g•d.
Keywords: Photosynthetic carbon, Reconstructed soils, gully erosion control and land construction project, Soil labile organic carbon, 14 C continuous labeling
Received: 18 Sep 2024; Accepted: 07 Apr 2025.
Copyright: © 2025 Lei, Zhang, Sun and mu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Na Lei, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.