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| DOI：10.13522/j.cnki.ggps.2021179 |
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| Review of the Artificial Rainfall Equipment Application on Agro-hydrological Experiments |
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LI Jiang, SU Mingxiao, SHI Chuanmeng
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College of Agricultural Science and Engineering, Hohai University, Nanjing 211000, China
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| Abstract: |
| Artificial rainfall equipment (ARE) is an important water supply equipment in agro-hydrological experiment, which can provide an effective rainfall simulation method for the research of rainfall infiltration, soil erosion and solute transport. The uncertainty of natural rainfall can be avoided by AREs, and the experiment results can be influenced directly by the water supply accuracy of ARE. In order to make better use of artificial rainfall equipment in agro-hydrological experiment in the future, this study reviewed the application progress of ARE in agro-hydrological experiments. The domestic and international AREs were sorted out, summarized and prospected from their classification, principle and characteristics. There are mainly four types of ARE, i.e., needle-type ARE, suspension line type ARE, pipe network type ARE and sprinkler-type ARE. They are widely used in the soil column experiments, soil flume experiments and field experiments. Needle-type AREs are widely used in soil column experiments, sprinkler-type AREs are most widely used in soil flume experiments and field experiments. While pipe network type and suspension line type AREs are less applied on agro-hydrological research compared with the other two AREs. AREs are expected to be further developed to be extensive, automatic, intelligent, precise and portable in the future. |
| Key words: agro-hydrology; rainfall simulation; artificial rainfall equipment; experiment |
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