**4. Conclusions**

The excessive use of water in the agricultural sector can cause serious problems in arid and semiarid regions. Water consumption is strongly correlated with the amount of ET; therefore, ET estimation can provide valuable information for water consumption planning and management. The Maroon-Jarahi basin's situation in regions with low WP values and high evapotranspiration rates, which are regarded as critical points, was the main focus of this study. The preparation of evapotranspiration and water productivity maps can help local farmers and decision makers identify the best agricultural practices used in high-productivity fields and adopt a similar approach in low-productivity areas to increase productivity in the future. Given the high level of water consumption for agriculture, using remote sensing to monitor agricultural water productivity can help identify gaps in water productivity and evaluate potential solutions to address those gaps.

The irrigation water managemen<sup>t</sup> system in the Maroon-Jarahi basin agriculture project has not been developed or modified since the beginning of the project. Therefore, one of the managemen<sup>t</sup> tools of the project can be remote sensing technology used in water allocation, crop water requirement assessment, and water productivity monitoring to identify productivity gaps and develop appropriate solutions to address them.

According to the results obtained after determining the critical points from the point of view of water consumption and water productivity, it is possible to propose managemen<sup>t</sup> strategies to reduce water consumption for the studied basin, and some of these strategies are as follows:


These factors can help reduce water consumption and increase water productivity.

**Author Contributions:** Conceptualization, methodology, supervision, project administration, and funding acquisition: H.D.; software, validation, formal analysis, visualization, and investigation: I.H.; resources, data curation, analysis, and writing—review and editing, S.M. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** All important data are available in the paper.

**Conflicts of Interest:** The authors declare no conflict of interest.
