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对于土来说,排水和土壤损失的整体和相互变量的变化是结解周期的结果
Sudabeh Gharemahmudli1, Seyed Hamidreza Sadeghi2, Ali Najafinejad3
1Watershed Management Sciences and Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Environmental monitoring and assessment
|June 19, 2023
概括
土壤结-解周期显著增加了土土壤的下水和土壤侵蚀. 这些由冰层和湿度和驱动的变化,会影响寒冷地区的土壤水文.
科学领域:
- 土壤科学 土壤科学
- 水文学的水文学
- 环境科学 环境科学
背景情况:
- 土壤结解过程在寒冷地区至关重要,影响土壤水动力学和水文行为.
- 土壤结解周期的动态现象和后果需要进一步研究.
研究的目的:
- 为了比较分析单一冷解周期对土水文行为的影响.
- 调查冷解对排水产生和土壤损失的影响.
主要方法:
- 小规模侵蚀地块 (0.5×0.5米) 经过受控的冷解周期 (-3天-20°C,然后2天10°C).
- 经过处理和未经处理的地块在20%的斜率上受到模拟降雨 (72毫米/小时0.5小时).
- 测量了流水产生和土壤损失,并在处理方法之间进行了比较.
主要成果:
- 与对照组相比,冷解显著增加了排水量 (1.38倍) 和土壤损失 (2.90倍).
- 在经过处理的地块上,流失的时间缩短了1.65倍.
- 冰镜片,结阵线和接近和度的水分被确定为影响土壤行为的关键因素.
结论:
- 土壤结-解周期极大地改变了土壤的水文行为,导致侵蚀潜力增加.
- 了解这些影响对于在寒冷环境中管理土壤和水资源至关重要.
- 该研究强调了冷解对土水文学的重大影响.
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