保护沟对生态系统服务的监管和提供的处理效应
Shakir Ali1, B K Sethy2, B L Mina3
1ICAR-Indian Institute of Soil and Water Conservation, Research Centre, Kota, 324002, Rajasthan, India.
Journal of environmental management
|October 16, 2024
概括
每公505个沟的分层轮挖掘 (SCT) 最好恢复退化土地. 这种方法显著减少了排水和土壤损失,同时改善了土壤营养和生物质产量,支持土地退化中性.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 可持续的土地管理
背景情况:
- 联合国可持续发展目标15.3强调恢复土地.
- 退化土地需要有效的管理和恢复策略.
- 创新的研究和政策框架对于全球土地健康至关重要.
研究的目的:
- 量化分层轮挖掘 (SCT) 与野生牧场系统相结合对退化迷你流域生态系统服务的影响.
- 评估不同SCT密度对水文,调节和提供生态系统服务的有效性.
主要方法:
- 配对的流域方法来量化水文调节服务.
- 对非水文服务的处理和未处理的流域进行比较.
- 评估SCT对排水,土壤损失,有效降雨量,土壤营养素和生物质产量的影响.
主要成果:
- 505个沟的SCT密度ha-1最大限度地减少了排水 (63.3%) 和土壤损失 (3.73%).
- 这种密度也改善了有效降雨量 (9.9%),并保留了比较低密度的231倍多的泥.
- 观察到土壤营养素 (N,P,K,有机碳) 和生物质产量 (Acacia nilotica: 166.2%,Cenchrus ciliaris: 21.5%) 的显著增加.
结论:
- 在野草牧系统中,SCT密度为505沟ha-1对于退化土地的恢复是最佳的.
- 这种做法增强了生态系统服务,支持土地退化中立性和SDG 15.3.3.
- 调查结果为决策者和土地管理者提供了有价值的数据,用于恢复退化的生态系统.
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