岩溶区土壤微生物驱动的自养固碳过程与机制研究进展

Research progress in the process and mechanisms of autotrophic carbon sequestration driven by soil microorganisms in karst areas

摘要:

自养微生物能够利用无机碳作为碳源合成自身营养物质，具有很强的环境适应能力，在富钙偏碱的岩溶区土壤的碳固定过程中扮演重要角色。本文综述了土壤微生物驱动的自养固碳过程、岩溶区土壤固碳功能微生物、自养固碳的分子机制及其产生的生态环境效应，并提出了亟待解决的关键科学问题。为深入研究和认识岩溶区土壤生态系统自养微生物驱动的固碳过程及其机制、提高岩溶区土壤的固碳潜能、发展岩溶区生态环境的保护与修复策略、应对气候变化及人类活动引起的土壤退化风险提供参考。

Abstract:

Autotrophic microorganisms can use inorganic carbon as a carbon source to synthesize their own nutrients, which have strong environmental adaptability and play an important role in the carbon fixation of the soil in the karst area rich in calcium and alkali. This review focuses on the process of autotrophic carbon fixation driven by soil microorganisms, the carbon fixing functional microorganisms in karst soils, and the molecular mechanisms of soil microbial autotrophic carbon fixation and their eco-environmental effects in karst area. The key scientific problems to be solved are also proposed. It provides a reference for further study and understanding the carbon sequestration process and its mechanisms driven by autotrophic microorganisms in the soil ecosystem of karst areas, improving the carbon sequestration potential of soil in karst areas, developing the protection and restoration strategies of karst ecological environment, and coping with the risk of soil degradation caused by climate change and human activities.