Changes in soil-water content and heat transport under different simulated systems of drip irrigation in gravel-mulched fields
| العنوان: | Changes in soil-water content and heat transport under different simulated systems of drip irrigation in gravel-mulched fields |
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| المؤلفون: | Yali Wang, Guihua Qi, Zongli Li, Junhong Hu, Yingdong Zhao, Wenju Zhao |
| المصدر: | Water Supply. 22:452-461 |
| بيانات النشر: | IWA Publishing, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Hydrology, Soil water, Environmental science, Drip irrigation, Water Science and Technology |
| الوصف: | Gravel mulching is an ancient mulching system with a history of more than 300 years in China. To explore the changes of soil-water content (SWC) and heat transport in watermelon gravel-mulched fields under drip irrigation, we simulated three irrigation quotas (W1, 180 m3/hm2; W2, 270 m3/hm2; and W3, 360 m3/hm2) and three irrigation frequencies (F1, three times; F2, six times; and F3, nine times) based on HYDRUS-2D. The results indicated that peak SWC increased with irrigation quota. The range of fluctuation of SWC decreased as irrigation frequency increased. The temperature of the 0–40 cm soil layer varied with air temperature, but the range of fluctuation decreased with depth. Irrigation affected the distribution of soil water, increased soil heat capacity, and reduced the impact of air temperature on soil temperature, thus delaying the impact of air temperature on soil temperature. High-frequency drip irrigation could therefore effectively improve SWC, reduce water stress during the period of watermelon growth, and effectively delay the effect of air temperature on soil temperature, providing a theoretical basis for developing reasonable irrigation strategies and regulating soil water and heat in gravel-mulched fields. |
| تدمد: | 1607-0798 1606-9749 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::dfb4c1307f462eab4fdd347ce155c317 https://doi.org/10.2166/ws.2021.262 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........dfb4c1307f462eab4fdd347ce155c317 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16070798 16069749 |
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