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梯田田地增加了洛斯高原的耕地中的土壤有机碳含量

Qinqin Wang^1,2,3, Yuanxiao Xu⁴, Guofeng Zhu^5,6,7

¹College of Geography and Environment Science, Northwest Normal University, Lanzhou, 730070, Gansu, China.

Scientific reports

|October 15, 2025

概括

在中国的洛斯高原,露台显著增加了土壤有机碳 (SOC),因为它改善了土壤和水的保护. 农业实践和恢复工作增强了SOC,这对于梯田土地的碳捕获至关重要.

科学领域:

农业科学农业科学
土壤科学土壤科学
环境科学环境科学

背景情况:

露台是一种全球性的做法,在丘陵地区,以加强农业和保护土壤.
了解露台对土壤碳池的影响对于减缓气候变化至关重要.
中国洛斯高原面临着土壤退化和碳管理方面的挑战.

研究的目的:

研究农业活动和生态恢复对梯田地区土壤碳池的影响.
在不同的土地管理实践下量化土壤有机碳 (SOC) 含量的变化.
为优化梯田式农田的碳捕集提供见解.

主要方法:

在洛斯高原的典型梯田田中建立了一个观测系统.
收集的土壤样本从0至100厘米深度跨越各种土地用途 (耕地,恢复植被).
分析了土壤有机碳含量与露台,作物类型和植被覆盖的关系.

主要成果:

与斜坡田相比,露台铺设显著增加了土壤有机碳 (SOC) 含量 (7.7gkg-1比4.9gkg-1).
SOC积累最明显的是在梯田小麦田的顶部0-30厘米层.
短期放弃土地导致SOC损失,而果树和作物再种植增加了SOC.

结论:

露台增强了土壤碳捕集能力,通过改善土壤和水资源的保护.
农业管理和生态恢复是梯级生态系统中SOC动态的关键驱动力.
这些发现支持对梯田耕地制定有效的碳捕集策略.

关键词:

农业活动农业活动土壤有机碳土壤有机碳露台装饰是一个很好的方法.植物覆盖面的植被覆盖.

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