It has been a year since I have started looking for my piece of land to start my permaculture project and I think I have finally found it. It is located on an east slope of a mountain range (elevation just some 300 m), facing south. It is surrounded by oak trees from each side so no winds and it is large enough for me (12000 sq. m), BUT... The soil there is very very poor. It is light brown in color, roots only go some 5 cm deep, it is very alkaline (over 7,5, somewhere reaching 8!), dry and very rocky! 50% of the mass is stone, sometimes 60%. You basically cannot dig a hole using shovel, you have to use pickaxe, if you want to do it effectively (see attached picture). The area is well known for growing grapes as this is a very good area for them (dry and hot) and of course I would grow them, but I don't wish to have a monoculture of grapes.
So my question is, what would you do? Would you buy this land and try to improve the soil conditions? If so, how? I think this is what permaculture is all about, isn't it? Improving the soil? But how to best do this on such large scale? Green mulching? If so, which plants? What fruit trees or shrubs to plant? What plants with deep roots can survive such conditions? Thank you!