Selective irrigation can deliver water to trees with the most need for water. There is no good automated system for selective irrigation yet without human irrigators or expensive installation. Autonomous irrigation drones will happen at one point.
I must add that so far we have been focusing on orchards rather than forests. We are looking into expanding to forests and we have been in touch with the government.
What percentage of the images surveyed classify as candidates for selective irrigation? What if that area is more than available selective irrigation capacity?