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微气候对土壤动力学和植物多样性的影响在中国西南部的岩石荒漠化梯度上

Qian Wu¹, Chengjiao Rao^2,3, Wende Yan^2,3

¹College of Resources and Environmental Engineering, Anshun University, Anshun 561000, China.

Plants (Basel, Switzerland)

|April 26, 2025

概括

微气候显著影响土壤和植物再生在岩石沙漠化. 与潮湿的季风区相比,干热的山谷显示出较高的含量和特定的植物再生模式.

科学领域:

土壤科学土壤科学
生态生态学生态生态学
环境科学环境科学

背景情况:

土壤活性分数对于植物生长和营养循环至关重要.
卡斯特生态系统面临岩石荒漠化带来的挑战,影响土壤气动态.
在这些地区,微气候变化的对土壤的影响还未得到充分研究.

研究的目的:

为了研究不同的岩石荒漠化等级 (NRD,LRD,MRD,IRD) 的土壤活性分数.
评估微气候 (干热山谷与潮湿季风区) 在影响土壤和植物再生方面的作用.
评估与中国贵州省土壤气动态相关的关键生物和非生物因素.

主要方法:

量化土壤有机碳 (SOC),总 (TN),总 (TP),酸盐 (NO3−-N), (NH4+-N),微生物生物质 (MBN) 和可溶性有机 (SON).
评估了四种荒漠化等级和两个微型气候的植物多样性和再生模式.
分析了土壤活性分数,生物因素和非生物条件之间的关系.

主要成果:

强烈的岩石荒漠化 (IRD) 显示了显著更高的SOC,TN和TP.
土壤酸 (NO3−-N),MBN和SON呈现下降后增加的趋势,干热山谷的MBN持续增长.
干热山谷通常具有更高的MBN和SON,微气候显著影响了土壤活性,特别是在轻度 (LRD) 和中度 (MRD) 岩石荒漠化下.

结论:

微气候在塑造土壤气动力学和在岩石沙漠化梯度上的植物再生方面发挥着重要作用.
与潮湿的季风区相比,干热山谷的微气候对土壤和植物群体组成产生了明显的影响.
这些发现为开发受岩石荒漠化影响的石生态系统的目标恢复战略提供了关键的见解.

关键词:

生物多样性生物多样性卡斯特生态系统卡斯特生态系统微气候类型微气候类型岩石沙漠化,沙漠化,岩石沙漠化土壤活性是土壤中的活性.

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