Climate Change Data Portal
DOI | 10.3390/w11040756 |
Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq | |
Ewaid, Salam Hussein1; Abed, Salwan Ali2; Al-Ansari, Nadhir3 | |
发表日期 | 2019 |
ISSN | 2073-4441 |
卷号 | 11期号:4 |
英文摘要 | The climate of Iraq is of the subtropical semi-dry type; however, the country was rich in water resources until a few decades ago. Climate change and the construction of many dams on the Tigris and Euphrates rivers in the neighboring countries have caused water shortages and poor water quality. Now, there is a need to decrease consumption, improve management of water resources, and determine the water requirements of the major crops because agriculture is the first consumer of water in Iraq. The Food and Agriculture Organization (FAO) CROPWAT 8.0 simulation software and the CLIMWAT 2.0 tool attached to it have been used in this research for Dhi-Qar Province in southern Iraq to find the crop water requirements (CWRs) and irrigation schedules for some major crops. The CROPWAT Penman-Monteith method was used to calculate the reference crop evapotranspiration (ET0) and the United States Department of Agriculture (USDA) soil conservation (S.C.) method was used to estimate the effective rainfall. The study results showed that ET0 varied from 2.18 to 10.5 mm/day and the effective rainfall varied from 0.0 to 23.1 mm. The irrigation requirements were 1142, 203.2, 844.8, and 1180 mm/dec for wheat, barley, white corn, and tomatoes, respectively. There is a higher water demand for crops during the dry seasons (summer and autumn) and a lower demand during the wet seasons (winter and spring). The total gross irrigation and the total net irrigation were 343.8 mm and 240.7 mm for wheat, 175.2 mm and 122.6 mm for barley, 343.8 mm and 240.7 mm for white corn, and 203.3 mm and 142.3 mm for tomatoes. This study proved that the CROPWAT model is useful for calculating the crop irrigation needs for the proper management of water resources. |
WOS研究方向 | Water Resources |
来源期刊 | WATER
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/95633 |
作者单位 | 1.Southern Tech Univ, Tech Inst Shatra, Diwaniyah 54001, Iraq; 2.Univ Al Qadisiyah, Coll Sci, Dept Environm, Al Qadisiyah 58001, Iraq; 3.Lulea Univ Technol, S-97187 Lulea, Sweden |
推荐引用方式 GB/T 7714 | Ewaid, Salam Hussein,Abed, Salwan Ali,Al-Ansari, Nadhir. Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq[J],2019,11(4). |
APA | Ewaid, Salam Hussein,Abed, Salwan Ali,&Al-Ansari, Nadhir.(2019).Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq.WATER,11(4). |
MLA | Ewaid, Salam Hussein,et al."Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq".WATER 11.4(2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。