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埃塞俄比亚西北部霍罗古杜鲁瓦拉加地区的降雨和温度变化和趋势
Tolamariam Chimdessa Deressa1, Fedhasa Benti Chalchissa2, Dessalegn Obsi Gemeda3
1Department of Natural Resources Management, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia. tolachimdi@gmail.com.
Environmental monitoring and assessment
|June 17, 2025
概括
气候变化正在改变埃塞俄比亚的降雨量和温度. 这项研究揭示了气温的上升和降雨模式的变化,需要紧急适应雨水农业的适应策略.
科学领域:
- 农业科学 农业科学
- 气候科学 气候科学
- 环境科学 环境科学
背景情况:
- 雨水农业非常容易受到气候变化的影响.
- 了解气候变化对于适应像埃塞俄比亚的霍罗古杜鲁瓦拉加地区这样的地区至关重要.
研究的目的:
- 分析气候趋势和温度和降水的变化.
- 评估降雨模式的变化,包括开始,停止和干旱时期.
- 为了确定 Horro Guduru Wallaga 区生长季节的长度.
主要方法:
- 使用了1981-2020年每日降雨量,最低和最高温度的格式数据.
- 使用的统计方法:变化系数,降水度指数,标准化降雨异常,曼·肯德尔测试和森的斜率估计器.
- 分析了温度,降水,降雨季节性和生长季节长度的趋势.
主要成果:
- 观察到年平均最低 (71%) 和最高 (86%) 温度的显著上升趋势.
- 年度降雨量呈现上升趋势,在三个站点显著增加;季节性趋势有所不同.
- 降雨分布不规则,开始时间较早,停止时间较晚,发生了极端干旱.
- 最低和最高气温都在增加,降雨模式的显著变化也在增加.
结论:
- 埃塞俄比亚的Horro Guduru Wallaga地区正在经历显著的变暖和降雨模式的改变.
- 这些气候变化对雨水农业构成风险,可能导致土地退化和产量损失.
- 紧急实施气候变化适应措施对于减轻负面影响至关重要.
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