Advances of the Soil Organic Carbon Stability Under Vegetation Restoration in Eroded Areas

XIAO Shengsheng; FANG Huanying; XU Jiawen; CHANG Mengqi; QIN Xiaolei; PENG Wenjie; LIU Hongguang; SHEN Faxing

doi:10.13870/j.cnki.stbcxb.2022.05.001

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Advances of the Soil Organic Carbon Stability Under Vegetation Restoration in Eroded Areas

更新时间：2025-03-12

- Advances of the Soil Organic Carbon Stability Under Vegetation Restoration in Eroded Areas
- Vol. 36, Issue 5, Pages: 1-8(2022)
- 作者机构：
  
  1. 江西省土壤侵蚀与防治重点实验室, 江西省水利科学院, 鄱阳湖流域生态水利技术创新中心,南昌,330029
  2. 江西省退化生态系统修复与流域生态水文重点实验室, 南昌工程学院,南昌,330099
  3. 江西农业大学林学院,南昌,330045
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.05.001
  CLC： S156.3
- Published：2022
- 稿件说明：
移动端阅览
XIAO Shengsheng, FANG Huanying, XU Jiawen, et al. Advances of the Soil Organic Carbon Stability Under Vegetation Restoration in Eroded Areas[J]. 2022, 36(5): 1-8.
DOI：

XIAO Shengsheng, FANG Huanying, XU Jiawen, et al. Advances of the Soil Organic Carbon Stability Under Vegetation Restoration in Eroded Areas[J]. 2022, 36(5): 1-8. DOI： 10.13870/j.cnki.stbcxb.2022.05.001.

摘要

探究土壤有机碳(SOC)的组成、来源和稳定性机制是深入认识陆地碳汇功能和应对气候变化的关键。"增加土壤碳汇"与"稳定现存土壤碳汇"都是提升陆地生态系统碳固持能力的重要方面

地位同等重要。与"增汇"研究成果丰硕相比

"稳汇"研究相对薄弱。侵蚀区进行植被恢复可以显著促进SOC积累

但由于侵蚀区存在碳素坡面侵蚀损失

其碳素积累效率低于其他生态系统类型区这一重要环节

导致目前有关侵蚀区及其水土保持植被恢复过程中SOC动态变化、稳定性及固持长期有效性等问题尚不清楚

微生物介导的SOC稳定机制尚未充分揭示。通过简要概括侵蚀区植被恢复过程中土壤碳素的积累效益和影响因素

综述植被恢复对土壤SOC及其活性组分稳定性的影响;在简要介绍土壤微生物在调控土壤碳素稳定性重要作用的基础上

梳理了基于微生物"碳泵"理论的土壤有机碳稳定性研究进展

特别是指出了随着植被恢复进程

侵蚀区土壤微生物介导的SOC动态变化

总结现有研究的不足。指出今后需要从研究对象(重点是西南石漠化区和南方红壤丘陵区)、研究内容(土壤微生物介导的SOC稳定状态和机制)、研究手段(借用微生物碳泵的理念

野外典型样地调查与室内培养手段相结合)和研究土层(20 cm以下深层次土壤)4个方面加强研究

以期对相关领域起到一定程度的推动作用。

Abstract

Exploring the composition

source of soil organic carbon (SOC) and its stabilization mechanism is key to deeply understand the carbon sink function of terrestrial ecosystem. Compared with the fruitful achievenents of "increasing soil carbon sink"

the "stabilizing soil carbon sink" are poorly understood

especially the SOC stabilization mechanism drived by soil microbial under vegetation restoration in eroded areas has not been fully revealed becaused of low SOC accumulation efficiency with the SOC loss under soil erosion. Based on a brief summary of the benefits and influencing factors of SOC accumulation in the process of vegetation restoration in eroded areas

the effects of vegetation restoration on the stability of SOC and its active components were reviewed; Based on the brief introduction of the important role of soil microorganisms in regulating SOC stability

the study progress of SOC stability based on soil microbial carbon pump (MCP) theory were summarized. The main research directions in this field in the future were also suggested

including research objects (especially the rocky desertification area in Southwest China and red soil hilly area in South China)

research contents (soil microbial mediated SOC stability and regulation mechanism)

research methods (combining field typical sample investigation with indoor microbial culture based the MCP concept) and soil layer (deep soil below 20 cm).

关键词

Keywords

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