دورية أكاديمية
Developing policy-making for maximizing the water productivity in agricultural lands
| العنوان: | Developing policy-making for maximizing the water productivity in agricultural lands |
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| المؤلفون: | Jiangtao Fang, Liyuan Tang |
| المصدر: | Water Supply, Vol 23, Iss 5, Pp 2188-2196 (2023) |
| بيانات النشر: | IWA Publishing, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Water supply for domestic and industrial purposes LCC:River, lake, and water-supply engineering (General) |
| مصطلحات موضوعية: | compost, irrigation time, least significant difference, soil moisture, Water supply for domestic and industrial purposes, TD201-500, River, lake, and water-supply engineering (General), TC401-506 |
| الوصف: | Soil moisture content improvement is a key process in agricultural production and food security in arid and semi-arid regions. The interaction effect of crop water requirement (CWR) and soil texture on water productivity was evaluated in Harbin, Heilongjiang province, China. A field experiment with two scenarios of compost application (0, 25 ton/ha) and three levels of irrigation policies (deficit irrigation (DI = 0.75CWR), regular irrigation (RI = CWR), and full irrigation (FI = 1.25CWR)) was planned in three replications during 2021–2022. Water productivity was simulated as a criterion to improve the irrigation time for increasing the final biomass. Four strategic crops including potato, corn, wheat, and barley were incorporated into the daily simulation system. Furthermore, a machine-learning random forest algorithm was used to find the best irrigation times. The results showed that the use of adjusted irrigation time and improved soil texture can increase water productivity by reducing evaporation and deep percolation and increasing actual biomass. Estimation of irrigation time in a learning-based method will be optimal when plant growth and soil moisture are monitored on a daily basis. HIGHLIGHTS Water productivity was evaluated as a criteria to improve the irrigation time for considering food security.; The improvement of the soil structure using natural compost and its interaction with irrigation water were investigated.; Deficit irrigation and modification of irrigation time are the most important factors for increasing water productivity for wheat and potato, respectively.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1606-9749 1607-0798 |
| Relation: | http://ws.iwaponline.com/content/23/5/2188; https://doaj.org/toc/1606-9749; https://doaj.org/toc/1607-0798 |
| DOI: | 10.2166/ws.2023.091 |
| URL الوصول: | https://doaj.org/article/852a78f230ed43288175101749f2ce87 |
| رقم الأكسشن: | edsdoj.852a78f230ed43288175101749f2ce87 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16069749 16070798 |
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| DOI: | 10.2166/ws.2023.091 |