Not sure what is the biome of the land, but you can look for the work of Ernst Götsch[1] and Syntropic Farming [1].

The main idea is introducing biomass in layers and heavy pruning, start planting a lot of short-life plants (like grass) while also planting some medium-life plants (like bushes or small trees). Prune the grass on every seasonal cycle keeping the cut leafs on the ground. Repeat the cycle while also introducing long-life plants (like bigger trees, preferably fruit-bearing trees). Another idea is having plants that seek for water deep underground, those eventually bring streams and creaks back to life.

When you understand it, the plan sounds simple, you are just speeding up the natural cycles of the location, using grass to fix carbon and generate biomass while other trees grow in the vegetation. It is pretty impressive

Edit: added a better link explaining Synthropic Farming

[1]: https://en.wikipedia.org/wiki/Ernst_G%C3%B6tsch

[2]: https://www.sciencedirect.com/science/article/pii/S254251962...