| Issue |
E3S Web Conf.
Volume 136, 2019
2019 International Conference on Building Energy Conservation, Thermal Safety and Environmental Pollution Control (ICBTE 2019)
|
|
|---|---|---|
| Article Number | 07019 | |
| Number of page(s) | 5 | |
| Section | Monitoring and Control of Soil Pollution | |
| DOI | https://doi.org/10.1051/e3sconf/201913607019 | |
| Published online | 10 December 2019 | |
Monitoring of soil moisture and irrigation forecast under the condition of drip irrigation in greenhouse
Department of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300384, China
* Corresponding author’s e-mail: wyrf@163.com
The accurate prediction of the soil moisture in greenhouse can improve the accuracy of irrigation forecast, thus saving water and increasing production. In this paper, the monitoring data were obtained from the greenhouse in Agricultural Demonstration Park of Northland Spring, Wuqing District, Tianjin. The soil moisture was predicted based on the GM (1,1) model, and the effect of water-saving and increased production was tested with the results of the economic irrigation research in the same area. The results show that the GM (1,1) model has a higher accuracy of soil moisture prediction. The correlation coefficient (R2) of the predicted value and the measured value is higher than 0.9; the small error probability P is 1; the mean relative prediction errors are all less than 0.1. Therefore, the GM (1,1) model can be used to predict soil moisture content.
© The Authors, published by EDP Sciences, 2019
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