An experimental simulation of moisture distribution and its uniformity within the soil profile under laboratory conditions
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- 作者：Ioannis Gravalos ; Anastasios Georgiadis ; Dimitrios Kateris…
- 关键词：Precision irrigation scheduling ; Soil moisture status ; Sensor ; based platform ; Uniformity testing
- 刊名：Precision Agriculture
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：18
- 期：1
- 页码：19-36
- 全文大小：
- 刊物类别：Earth and Environmental Science
- 刊物主题：Agriculture; Soil Science & Conservation; Remote Sensing/Photogrammetry; Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences; Atmospheric Sciences;
- 出版者：Springer US
- ISSN：1573-1618
- 卷排序：18
文摘
This research is a study on the relationship of irrigation water treatments and soil moisture distribution uniformity (DU). Soil moisture distribution was based on long-term data sets that were collected using a novel electromagnetic sensor-based platform moving inside sub-surface horizontal access-tubes. The research was conducted under controlled laboratory conditions in a soil tank. The irrigation treatments regarding two case studies under dry and wet soil conditions (from permanent wilting point to field capacity) were conducted for a period of 115 and 110 days respectively. In dry soil conditions, the irrigation water treatments strongly affect the DU of soil moisture that can be achieved constantly using non-uniform irrigation treatments. In contrast, the DU of soil moisture in wet soil conditions was maintained at a high percentage and was slightly affected by irrigation treatments. However, obtaining accurate soil moisture information at a large scale over a long period can be used to improve water use efficiency.