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タイトル
和文: 
英文:Assessment of Irrigation Water Performance in the Nile Delta Using Remotely Sensed Data 
著者
和文: Ayat Elnmer, Mosaad Khadr, Ayman Allam, 鼎信次郎, Ahmed Tawfik.  
英文: Ayat Elnmer, Mosaad Khadr, Ayman Allam, Shinjiro Kanae, Ahmed Tawfik.  
言語 English 
掲載誌/書名
和文: 
英文:water 
巻, 号, ページ Volume 10    Issue 10    1375
出版年月 2018年10月1日 
出版者
和文: 
英文:MDPI 
会議名称
和文: 
英文: 
開催地
和文: 
英文: 
公式リンク https://www.mdpi.com/2073-4441/10/10/1375
 
DOI https://doi.org/10.3390/w10101375
アブストラクト A comprehensive framework for irrigation water performance assessment (IWPA) based on satellite data was proposed. This framework consists of external IWPA (EIWPA) and internal IWPA (IIWPA). The EIWPA indicates the water supply as well as agricultural and economic performances. On the other hand, the IIWPA expresses the temporal and spatial performances of irrigation water use adequacy (PA), equity (PE), and dependability (PD) indicators. This framework was applied to the irrigation scheme of the Al-Qased canal in the Nile Delta, Egypt, during the winter between 2015 and 2016. The crop water requirements (ETc) were calculated using the Surface Energy Balance Algorithm for Land (SEBAL) model and Landsat 8 images. Three classes, from “good” to “poor,” to classify the EIWPA and IIWPA values were proposed. The EIWPA was classified as “poor” in irrigation efficiency (51.2%) due to the oversupply of irrigation water in relation to the ETc while the economic indicators showed that the net profit was 7.84% of the gross value of crop production. The PE, PD, and PA were classified as “fair,” which indicated a non-uniform irrigation water distribution between the head and tail branch canals. Moreover, the irrigation water was inadequate during the growing months and could not meet the ETc. The framework presented an efficient tool for the IWPA in terms of spatial, temporal, agricultural, and economic performances.

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