在中国西北干旱地区的小麦水需求和气候原因的变化
Yaotian Tian1, Wei Liu2, Taiyang Chen3
1School of Energy and Power Engineering, Xihua University, No. 9999 Hongguang Street, Chengdu, 610039, Sichuan Province, China.
Environmental monitoring and assessment
|January 14, 2025
概括
了解新疆的小麦水需求对于水资源管理至关重要. 关键的气候因素,如参考作物的蒸发和温度,显著影响了这一要求,大多数地区呈现下降趋势.
科学领域:
- 农业科学 农业科学
- 气候学 气候学 气候学
- 水文学的水文学
背景情况:
- 最佳的水资源分配需要了解作物水需求和影响因素.
- 关于气候因素变化及其对新疆小麦水需求的影响的研究有限.
研究的目的:
- 从1961年到2017年,分析新疆小麦水需求的变化.
- 调查气候因素对小麦水需求的影响.
主要方法:
- 利用了1961年至2017年的每日气象数据.
- 使用Penman-Monteith公式和作物系数方法计算小麦的水需求.
- 应用了曼-肯德尔突变测试和灰色相关性分析.
主要成果:
- 小麦的水需求平均为529.5毫米,空间差异很大.
- 在大多数新疆地区观察到小麦水需求的下降趋势.
- 参考作物蒸发透气 (ET0),最大温度 (Tmax),平均温度 (Tmean),阳光持续时间和平均风速 (Umean) 是关键影响因素.
结论:
- 气候因素显著影响新疆小麦水需求.
- 这些发现为该地区有效的农业用水和灌战略提供了基础.
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