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Reforestation - Growing trees in arid, barren lands - by Seeds and Clay cubes (no watering)

Posts: 15
Location: Entrepinos, Cadalso de los Vidrios. Madrid, Spain. Altitude 825m. Prec. 473mm/year
forest garden trees greening the desert
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Hi again Kostas,

I found recently this document that I think would provide some ideas to the project:
Methods for Watering Seedlings in Arid Zones - Forests - MDPI

Hope it helps

Regards, Jesús.
Posts: 26
Location: Izmir, Turkey
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How to select the right oak (or other tree) seeds to plant? Individual trees and tree populations vary in their resilience to drought, temperature and poor soil conditions - in the absence of information regarding which trees produce better surviving seeds, having diversity of seed sources is the key. But with conditions getting increasingly worse, can we really afford to not try to increase survival rates of our trees? Maybe we should identify as many source trees and populations producing more resilient trees as possible.

It's an idea that had been bothering me for quite a while. I'm especially interested in any possible guidelines for selecting seed sources, so please don't hesitate to contribute your ideas!
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You bring up very important points Güneş.

From a practical point of view, we collect seeds locally. If we are discussing let's say oaks, we try to get as many varieties possible/available nearby, and picking the most healthy. The acorns are put in water and the ones that float are discarded.  We have a small oak forest nearby. Even though all the trees are all one type of oak...the acorns  vary slightly from tree to tree. So we get a variety. We have evergreen oaks and holm oaks nearby also. We try to do the same with the other seeds.

As this project expands,  we can share seeds across regions and countries.

If all goes well, this winter I will start new seeding projects in southern Greece, near Sparta. The climate there is more difficult. Higher temperatures, lower precipitation and longer summers.

This spring when I was there, I "planted" - just set down, some cactus pads ...about 25 pieces. I hope they will root and grow.

I plan to plant acorns and almonds in their shade. Hopefully a symbiotic relationship can develop between the two. When the oaks are young, they will benefit from the cool environment of the cactus.

15 to 20 years  later, the oaks will shade the area, the cactus will die and become food for the oaks.

Let's see how it works out.

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