禁止牲畜进入农场水可以减少甲排放,提高水质
Omosalewa Odebiri1, Jake Archbold1, Joshua Glen1
1School of Life and Environmental Sciences, Deakin University Melbourne, VIC 3125, Australia.
The Science of the total environment
|August 11, 2024
概括
围农场大显著减少甲 (CH4) 和二氧化碳 (CO2) 排放,改善水质. 这些环境效益在各个季节都是一致的,使其成为农业景观的有效策略.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 气候变化研究 气候变化研究
背景情况:
- 农场水或农业池在全球范围内很常见,在牲畜进入时,它们对甲 (CH4) 排放有很大贡献.
- 关于减轻这些排放的先前研究侧重于扩散性甲流,忽视了对于较小水体至关重要的沸性流.
- 农场水缓解策略有效性的季节性变化仍未得到充分研究.
研究的目的:
- 调查不同季节的围和非围农场大的甲 (CH4) 和二氧化碳 (CO2) 总排放量.
- 评估牲畜排斥对农场水水质参数的影响.
- 确定围作为减少温室气体排放和改善农业环境中的水质的战略的有效性.
主要方法:
- 监测夏季和冬季澳大利亚围和无围的农场大的总CH4 (扩散+沸) 和CO2排放量.
- 测量水质参数,包括总溶解,和溶解氧.
- 分析环境因素 (如空气温度) 与CH4排放之间的关系.
主要成果:
- 与无围相比,有围的水的CH4排放量显著降低:夏季减少72%,冬季减少92%.
- 在围水中,二氧化碳相当量的流量在夏季减少了59%,冬季减少了73%.
- 围水的水质有所改善,和含量降低,溶氧量增加.
结论:
- 通过围将牲畜排除在农场大之外,这是一个非常有效的方法,可以减轻CH4和CO2的排放.
- 围对减少温室气体排放和提高水质的积极影响在不同季节持续存在.
- 通过排除牲畜来管理农场的水,为减少农业的碳足迹和改善淡水生态系统健康提供了可行的解决方案.
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