This data set is the observation data of soil moisture content in Nanxiaohegou watershed from 1981 to 1990. The observation time of soil moisture content in runoff field is generally once every 10 days, that is, sampling on the 1st, 11th and 21st of each month. In the runoff field, the soil moisture content after rain must be measured. The sampling location is in the protection zone of runoff plot, and the gravity difference method is used in the conventional method. In the protection zone of the residential area, the soil drill (or Luoyang shovel) is used to take samples according to the representative depth of 10cm, 20cm, 40cm, 60cm, 80cm and 100cm.
Manual timing observation
The time interval of soil water content observation is usually 10 days, i.e. sampling on the 1st, 11th and 21st of each month. After precipitation, the soil water content after rain must be measured. The representative depth of the soil drill is 0-10cm, 10-20cm, 20-40cm, 40-60cm, 60-80cm and 80-100cm. Two samples are taken for each layer, which are processed by drying method and calculated by weight difference method. The average value of soil moisture is the soil moisture content of the soil layer.
In the process of integration and input of observation data, four levels of manual verification are carried out, including tabulation, primary calibration, re calibration and audit, so as to ensure the data quality.
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
CSTR:11738.11.ncdc.HWXFZhan.2020.106
10.12072/ncdc.HWXFZhan.db0033.2020
