威尔士气候变化下的农业土地能力的变化
Jacqueline A Hannam1, Caroline A Keay1, Kriti Mukherjee1
1Cranfield Environment Centre, Cranfield University, UK.
The Science of the total environment
|June 4, 2025
概括
由于土壤湿度下降,未来的气候变化可能会改善威尔士的农田能力,但到2080年,干旱风险增加将限制最适合农业的土地.
科学领域:
- 农业科学 农业科学
- 气候变化影响评估 气候变化影响评估
- 空间分析是一种空间分析.
背景情况:
- 土地能力评估对于农业生产至关重要,但往往缺乏微细细节和气候-土壤-作物相互作用分析.
- 现有的模型对于实际决策来说过于粗,并且排除了最终用户的投入.
- 气候变化需要更新评估,以了解未来的农业潜力.
研究的目的:
- 共同开发威尔士农业用地分类的精细规模的预测空间评估.
- 根据基线和未来气候场景评估土地能力,考虑气候-土壤-作物相互作用.
- 通过结合本地规模预测和最终用户需求来解决当前评估的局限性.
主要方法:
- 开发了威尔士农业用地分类的细度空间评估模型.
- 利用基线气候数据 (1961-1990) 和预测建模的未来气候场景.
- 分析了气候-土壤-作物相互作用,专注于诸如土壤湿度,温度和降雨等因素.
主要成果:
- 由于土壤湿度下降,2020年和2050年观察到具有更好的农业潜力的土地增加.
- 预计到2080年,高档农田将减少,土壤干旱将成为主要的限制因素.
- 到2080年,气温上升和生长季降雨减少,导致土壤水分缺口和干旱风险增加.
结论:
- 气候变化将改变威尔士的农业用地能力,最初的好处随后由于干旱而受到重大限制.
- 精细的,透明的评估对于有效的政策实施和关于农田的决策至关重要.
- 目前保护高品质农田的政策必须适应预计的气候变化影响,特别是干旱的增加.
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