从大面积牧场过渡到丝牧场系统,改善了哥伦比亚亚马逊的多种土壤生态系统服务
Carolina Moreno-Perez1, Dúber Mora-Motta1, Fausto A Ortiz-Morea1
1Amazonian Research Center CIMAZ-MACAGUAL, University of the Amazon, Street 17, Diagonal 17, Cr. 3F, Florencia 180002, Colombia.
The Science of the total environment
|March 26, 2025
概括
与亚马逊的传统牧场相比,Silvopastoral系统显著提高了土壤生态系统服务,如植物生长支持和营养循环. 这些系统为土地管理和环境保护提供了可持续的替代方案.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 亚马逊地区的传统畜牧业面临着环境挑战.
- 野草牧养系统提供了一个可持续的替代方案,将树木与牧场结合起来.
- 了解对土壤生态系统服务 (SES) 的影响对于可持续的土地管理至关重要.
研究的目的:
- 评估过渡到草牧系统对哥伦比亚亚马逊地区SES的影响.
- 确定敏感的土壤指标,用于监测SES变化.
- 分析不同SES之间的协同效应和权衡.
主要方法:
- 分析了传统牧场,15年历史的草牧系统和二级植被的土壤样本.
- 评估了五个关键的土壤生态系统服务:植物生长支持,碳储存,营养循环,侵蚀控制,水调节/空气化.
- 确定了七个敏感的土壤特性作为指标.
主要成果:
- 牧草牧养系统显著改善:植物生长支持增加32%,营养循环增加34%,侵蚀控制增加16%与牧场相比.
- 土壤碳储存在牧场和野草牧场系统中是相似的,但比二级植被高出16%.
- 在碳储存,营养循环和侵蚀控制之间发现了积极的相互联系.
结论:
- 丝牧养系统大大改善了亚马逊地区的土壤健康和弹性.
- 将树木融入牧场是恢复退化土地的可行策略.
- 已识别的土壤特性可以作为监测SES的关键指标.
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