综合管理提高了料产量和质量,同时减轻了豆类草混合草地温室气体排放
Moazma Waris1, Muhammad Kamran1, Jiao Ning1
1China-Kazakhstan Belt and Road Joint Laboratory on Grassland Ecological Restoration, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Technology Research Center for Ecological Restoration and Utilization of Degraded Grassland in Northwest China, National Forestry and Grassland Administration, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, Gansu, China.
Journal of environmental management
|February 6, 2026
概括
综合肥管理,结合有机和化学来源,提高料产量和质量,同时减少温室气体排放. 这种可持续的做法是干旱草原的关键.
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:
- 肥对于料生产至关重要,但有助于温室气体 (GHG) 排放,影响可持续性.
- 提高料生产率与减少环境影响之间的平衡是草原管理的一个关键挑战.
- 正在探索综合营养管理策略,以优化化肥料使用效率,并最大限度地减少生态足迹.
研究的目的:
- 评估综合肥战略,将有机 (垃圾,绵羊便) 和化学来源结合在草草混合草地上.
- 评估不同肥料组合对干草产量,料营养质量,土壤矿物和温室气体 (N2O,CO2) 流量的影响.
- 确定最有效的综合方法,以提高草原的生产力,同时减轻干旱环境中的温室气体排放.
主要方法:
- 在干旱的草原环境中进行了一项为期两年的实地实验 (2023-2024年).
- 处理包括单个应用垃圾 (LT),绵羊便 (SE) 和化学肥 (CF),以及组合 (CF+LT,LT+SE,CF+SE).
- 测量包括干草产量,料质量参数 (原蛋白,纤维含量),土壤矿物 (酸盐,) 和温室气体排放.
主要成果:
- 结合肥料应用,特别是CF+SE,与对照组相比,显著改善了料质量 (增加了原蛋白,减少了纤维含量) 和干草产量.
- 在CF+LT处理过程中,土壤酸盐含量最高,这表明土壤气动态有所变化.
- 化学肥 (CF) 单独导致了最高的N2O排放,全球变暖潜力和温室气体排放强度. 相比之下,与CF相比,CF+SE降低了高达45.5%的N2O排放量和高达51.8%的温室气体强度.
结论:
- 综合化肥管理,特别是化学肥料和绵羊便 (CF+SE) 的组合,有效地提高了料产量和质量.
- 与仅使用化学肥料相比,这种综合方法可以显著减轻温室气体排放 (N2O,全球变暖潜力,温室气体强度).
- 这些发现支持综合肥管理作为一种可持续的做法,以提高生产率并尽量减少干旱耕地草原的环境问题.
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