This data set is the simple runoff field observation data of Jiuyuangou watershed in the first sub region of loess hilly gully region from 1956 to 1963. The secondary precipitation, runoff and sediment of runoff produced by runoff plots with different soil and water conservation measures were observed, and the water and sediment reduction benefits of different measures were compared. The basic situation of runoff field is shown in the table of basic situation of simple runoff field. The main monitoring indexes are: site number, month, day, rainfall (mm), runoff (m3 / km2), runoff coefficient (%), and erosion (T / km2).
Instrument continuous observation manual observation
1. The observation instruments of secondary rainfall are SM1 ordinary rain gauge with a diameter of 20cm and dsj2 siphon type self recording rain gauge. 2. The runoff and sediment shall be observed manually in the runoff pond, and the water level of the runoff pond shall be read immediately after the end of precipitation and runoff, and the runoff shall be calculated according to the area and water level of the runoff pond; the mud water in the runoff pond shall be stirred evenly to take the sediment sample (500cm3), and the replacement method shall be adopted for sample disposal.
In the process of integration and input of observation data, there are four levels of manual verification, which are tabulation, primary calibration, re calibration and audit, to ensure the data quality.
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