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通过室外模拟试验,对不同降雨强度和降雨历时对砾石覆盖土壤水分蒸发的影响进行了研究。结果表明,在相同降雨历时下,不同降雨强度对土壤水分蒸发有着一定的影响,降雨强度越大,土壤水分蒸发速率越大,蒸发量越大;不同降雨强度下土壤水分的累积蒸发量与时间符合线性关系。在相同降雨强度和降雨量下,降雨历时越长,土壤水分蒸发量越大;不同降雨历时下土壤水分的累积蒸发量与时间符合对数关系。
The effects of different rainfall intensity and rainfall duration on soil moisture evaporation in gravel soil were studied by outdoor simulation. The results show that under the same rainfall duration, different rainfall intensities have certain influence on soil water evaporation. The greater the rainfall intensity is, the larger the soil water evaporation rate is, and the greater the evaporation is. Under different rainfall intensities, the cumulative soil water evaporation and time In line with the linear relationship. Under the same rainfall intensity and rainfall, the longer the rainfall was, the greater the soil water evaporation. The cumulative evaporation of soil moisture under different rainfall duration corresponded with the time.