i-Tree Eco is a newly developed tools which is very suitable to assess the urban green space value including the tree biomass value, ecosystem service value and hydrologic and climatic value.

I love that is it free first of all. But it does more than just give information on trees, it can also be used to see how trees effect water quality which is a big part of what we do every day at UC Davis. It has a ton of features, which can seem a little overwhelming at first, but once you play around with the sight a bit it is actually incredibly helpful.