在雨水作物和牧场中通过使用遥感蒸发透气的水应激评估
Mosayeb Moqbeli1, Arman Oliazadeh2, Seyed Hossein Sanaei Nejad3
1Department of Water Science and Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
Environmental monitoring and assessment
|May 1, 2025
概括
农业干旱是雨水养殖的主要威胁,使用基于蒸发透气的指数进行了评估. 这项在伊朗的研究显示,与较湿的条件相比,在干旱时期存在严重的缺水问题.
科学领域:
- 农业科学 农业科学
- 水文学 水文学
- 遥感 遥感 遥感 遥感
背景情况:
- 农业干旱对全球的雨水农业产生了重大影响.
- 它是由土壤水分不足引起的,破坏了植物的生存.
- 通过蒸发透气的水损失加剧了这种不平衡.
研究的目的:
- 评估农业干旱,使用基于蒸发透气的指数.
- 分析伊朗东北部一个研究较少的地区的干旱状况.
- 为了比较干旱严重程度之间的干旱 (2015) 和潮湿 (2016) 的春季季节.
主要方法:
- 采用基于蒸发透气的框架进行干旱评估.
- 使用地面表面能量平衡算法 (SEBAL) 和普里斯特利-泰勒方法.
- 集成的遥感数据来估计实际和潜在的蒸发透气.
主要成果:
- 相对缺水指数 (RWDI) 量化了水资源的稀缺性.
- 干旱时期 (2015年) 在雨水土地和牧场中显示出80-100%的缺水.
- 湿季 (2016年) 的赤字减少了50%至70%.
结论:
- 这项研究成功地应用了一种基于蒸发透气的指数来评估农业干旱.
- 在干旱时期,研究区域确实存在严重的水资源短缺.
- 调查结果凸显了雨水农业对伊朗东北部干旱的脆弱性.
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