Actually recently I've mostly been listening to lectures by some scientists I follow:
Evan Gora at the Cary Institute does research on big trees in tropical rainforests and recently published some fascinating work on tree adaptations to lightning strikes https://www.youtube.com/watch?v=KjGFWDSXtJk or https://yewtu.be/watch?v=KjGFWDSXtJk
I'm also a big fan of Suzanne Simard's research on "mother trees". She wrote a book I've yet to read called Finding the Mother Tree that also has an audiobook available. But she also regularly does talks
A book that kicked off the popular interest in mycorrhizae is The Hidden Life of Trees by Peter Wohlleben which is also quite digestible. RadioLab also had a great episode about it https://radiolab.org/podcast/from-tree-to-shining-tree
And here are some of my favorite publication that sometimes cover these topics:
Quanta Magazine https://www.quantamagazine.org/forests-emerge-as-a-major-ove...
Noema https://www.noemamag.com/the-intelligent-forest/
Aeon https://aeon.co/essays/what-constitutes-an-individual-organi...
Emergence Magazine https://emergencemagazine.org/conversation/the-scaffolding-o...
Nautilus https://nautil.us/this-cloud-forest-should-not-exist-1226267
Try also:
- "Anthill" by E. O. Wilson
- "The Overstory" by Richard Powers
- "Oak: The Frame of Civilization" by William Bryant Logan
- "Sprout Lands: Tending the Endless Gift of Trees" by William Bryant Logan
- "Braiding Sweetgrass" by Robin Wall Kimmerer