Andrew Paul McKenzie Pegman Thank you for response, Could you please suggest a computer modeling and software that do the landscape patterns and quality? (a user-friendly one)
I can't talk about landscape quality through the nearest neighbor distance of trees.
I suggest to check out the technical domain of lansdcape metrics. You can check out this article on the theory: https://onlinelibrary.wiley.com/doi/abs/10.1002/9781118445112.stat07723
There are lots of resources for lanscape metrics, as they are highly used in Landscape Ecology.
From a technical standpoint, you can use FRAGSTATS to compute landscape metrics for your area of study: https://www.umass.edu/landeco/research/fragstats/fragstats.html