The Green Standards
Best Management Practices
What type of management is good, and what goes against biology.
Crown Quality
A healthy tree must have a balanced crown-to-trunk ratio and a clear central leader to survive in the urban environment.
Seed Bombing Standard
Scattering seeds on open soil without preparation or care results in zero survival in Yerevan's arid environment.
Green Space Density
An analysis of WHO recommendations for green space density and a review of the situation in Yerevan.
Ailanthus altissima (Tree of Heaven)
The harm of Ailanthus to Yerevan's ecosystem and the best ways to combat it.
Leaf Disposal
Due to Leaf Miner infestation, leaves must be composted to neutralize pests. Do not leave on surface.
The Value of Trees
Quantifying the cooling effect, dust filtration, and property value increase of Yerevan's canopy.
Lawns Standard
Native meadow lawns require 80% less water than turf and reduce fire risk compared to wild grass.