NYC Forest Assessment 2.0 Protocol and Materials

This document provides a standardized field protocol for sampling urban forested natural areas using a fixed-area plot design. The method emphasizes data collection on plant species composition and abundance across all forest layers, as well as downed woody material (coarse woody debris, leaf litter, and duff). It is most appropriate for upland forest communities.

In addition to the field protocol, supporting resources are included such as datasheets, a Survey123 form template, detailed equipment lists, project setup guidance, and a summary of the ecological information that can be derived from the collected data. Instructions and modified datasheets are also provided for adapting this protocol into a permanent plot monitoring framework, along with other supplemental materials.

This protocol is an updated and refined version of the Upland and Forest Ecological Assessment Protocol for New York City.

In a nutshell, this resource offers:

• A complete method for assessing the condition of forested natural areas in your city
• Inspiration for developing your own forest assessment project. 
• An example to refer to for training field staff on forest measurement practices.

How to use this resource:

• View the READ ME file provided in the downloadable .zip folder before getting started; review all materials to determine which components you want to use, and which might not apply to your project.
• Have fun outside :) 

Author: Natural Areas Conservancy and the New York City Department of Parks & Recreation Natural Resources Group

Date published: August 2025

Point of contact: Crystal Crown, Senior Manager of Data & Analytics, Natural Areas Conservancy: crystal.crown@naturalareasnyc.org 

Materials: