i-Tree Archives

i-Tree Eco Version 6 Resources

i-Tree Eco model enhancements for version 6 - A (pdf) document describing enhancements and changes in the i-Tree Eco v6 methods pertaining to air pollution modeling processes and valuations, which may cause pollution removal and monetary estimate differences from Eco v5 outputs. (Updated May 10, 2016)

i-Tree Eco wildlife modeling methods - A (pdf) research paper published in 2014 which includes the methods used for wildlife modeling in i-Tree Eco: "Using urban forest assessment tools to model bird habitat potential" by Lerman, S.B., Nislow K.H., Nowak D.J., DeStefano S., King D.I., & Jones-Farrand D.T.

i-Tree v6 Pollutant Removal, Biogenic Emissions and Hydrologic Processes Descriptions v1.1 - A document (pdf) describing i-Tree Eco v6 ecosystem services methods and processes integrated in i-Tree Landscape, Canopy, Design and Forecast including international adaptations for Australia, Canada and the United Kingdom. (Updated April 14, 2016)

i-Tree Eco v6 Pollution and Weather Station Availability - A spreadsheet (xlsx)list showing available weather and pollution data and number of monitors for the years 2005 to 2013 for Australia, Canada, Puerto Rico, the United Kingdom, and the United States.

i-Tree Eco v6 Weather Station Validation Description - A (pdf) document describing the i-Tree Eco v6 methods used to validate weather stations and interpolation process used for missing data gaps.

i-Tree Eco v6 Weather Station Validation Results - A spreadsheet showing weather station validation results for existing weather stations from 2005 to 2013 in Australia, Canada, Puerto Rico, the United Kingdom and the United States.


i-Tree Eco v6 data collection sheets and species list

i-Tree Eco v6 Sample Project - Plot Data Collection Sheet - Eco v6 plot data collection sheet (docx) for sample projects.

i-Tree Eco v6 Sample Project - Tree Data Collection Sheet - A customizable Eco v6 tree data collection spreadsheet (xlsx) for sample projects.

i-Tree Eco v6 Complete Inventory Project - Tree Data Collection Sheet - A customizable spreadsheet (xlsx) for i-Tree Eco v6 complete inventory projects.

i-Tree Eco Generic Pest Detection Data Entry Sheet - A Pest Detection module spreadsheet (xlsx) that can be adapted for Eco sample or complete inventory projects.

i-Tree Eco v6 Species List - A spreadsheet (xlsx) with Eco v6 tree and shrub species generated on 22Sept2016. This list is also available from within the Eco v6 application.

Removed list of herbaceous species from i-Tree Eco v6 master species list - A spreadsheet (xlsx) list of species removed from Eco v6 in the version 6.1.14 Sept2016 update due to Eco's modeling capability specific to woody vegetation.

i-Tree Eco & UFORE Resources

Documents for UFORE also pertain to i-Tree Eco as Eco is an adaptation of the Urban Forest Effects (UFORE) model.

i-Tree Eco Reference List - updated November 2012 - A bibliography of i-Tree Eco (UFORE) reference articles, reports and other resources.

UFORE Methods - This document describes methods and documentation for each model component.

UFORE-D Model Descriptions - Provides an overview of the UFORE-D model and descriptions of its calculations updated Feb 27, 2015. Note - the previous UFORE-D v1.3 document was updated and combined with the i-Tree Eco Dry Deposition Model Descriptions v1.1 on Nov 27, 2012.

i-Tree Eco Dry Deposition Model Descriptions - Provides an overview of the i-Tree Eco dry deposition model and descriptions of its calculations, updated Feb 27, 2015.

UFORE-D Model Enhancements - An overview of the UFORE-D model enhancements used for pollution effects in Eco v4.0

i-Tree Eco Precipitation Interception Model Descriptions A description of the precipitation interception model integrated in the i-Tree Eco version 5 application. (Updated 01/30/13)

Surface and Upper Weather Pre-processor for i-Tree Eco and Hydro v1.2 An updated description of the methods to process hourly weather parameters which are required in the i-Tree Eco and i-Tree Hydro v5 and v6 applications. (Updated 04/19/16)

i-Tree Streets/Design/Eco Rainfall Interception Model Comparisons A document discussing the differences in methodologies between the rainfall interception model, used by i-Tree Streets and Design, and the avoided runoff model methodology used in the i-Tree Eco version 5 application.

i-Tree Eco Biogenic Emissions Model Descriptions - A description of the biogenic emission model integrated in the i-Tree Eco version 5 application.

Single imputation method of missing air quality data for i-Tree Eco analyses in the conterminous United States - A description of the methods used to handle gaps in hourly air quality data in i-Tree Eco across the United States.

Carbon storage and sequestration by trees in urban and community areas of the United States - A 2013 journal article providing updated national urban tree carbon storage and sequestration estimates based on additional city and state urban field data and newer land area and tree cover estimates.

Social Cost of Carbon for Regulatory Impact Analysis - Under Executive Order 12866 - A technical support document from the Interagency Working Group on Social Cost of Carbon. United States Government. May 2013. A updated 2013 reference document used for i-Tree version 5 & 6 carbon valuation updates.

A Ground-Based Method of Assessing Urban Forest Structure and Ecosystem Services - A 2008 journal article describing the Urban Forest Effects Model (UFORE) data collection variables, model methods, advantages and limitations.

Effect of Plot and Sample Size on Timing and Precision of Urban Forest Assessments - A 2008 journal article discussing how plot and sample size can affect data collection time and precision for UFORE (i-Tree Eco) assessments.

Air Pollution Removal by Urban Trees and Shrubs in the United States - A 2006 journal article examining management of urban tree canopy effects as a viable strategy to improve air quality.

Modeling of urban trees' effects on reducing human exposure to UV radiation in Seoul, Korea - A 2014 journal article describing the UV model implemented in i-Tree to quantify urban trees' effects on mitigating the intensity of UV radiation on the ground within different land use types across a city.

Compensatory Value of Urban Trees in the United States - A 2002 journal article focusing on the Council of Tree and Landscape Appraisers (CTLA) tree-valuation method used to determine structural values for urban forests across the United States.

Carbon Storage and Sequestration by Urban Trees in the USA - A 2002 journal article discussing carbon storage and carbon sequestration estimates of the urban forest on a national scale.

A community-based urban forest inventory using online mapping services and consumer-grade digital images - A 2010 journal article discussing the feasibility of using aerial imagery for Eco data collection.

i-Tree Eco v5 Pollution data requirements - Document describing data and formatting requirements for international pollution data needed for i-Tree Eco v5 air quality analysis.(Updated April 2014)

Eco v5 Pollution Data Example (xlsx) - This Excel file is provided as an example of hourly air pollution data which International Eco users, except in Australia, Canada and the UK (Ecov6), need to provide for analysis with their field data.

Eco Weather Format Example - This text file is provided as an example of properly formatted weather data for Eco users interested in providing their own local weather data.

Eco Weather Abbreviations - This text file explains weather data formatting and codes for Eco users interested in providing their own local data.

Excel Eco v5 Species List - i-Tree Eco v5 species list in MS Excel (.xlsx) format. (Updated Nov 24, 2014)

PDF Eco v5 Species List - i-Tree Eco v5 species list in PDF format. (Updated Nov 24, 2014)

Eco v5 Data Explanation Sheet - Brief description of Eco v5 sample project plot & tree data collection options.

Eco v5 Plot Data Sheet (Editable .doc version) - Modifiable data sheet for Eco v5 general plot information developed by Sara Williams (Univ. of Vermont)

Eco v5 Tree Data Sheet (Editable .xls version) - Modifiable data sheet for Eco v5 sample project tree data collection developed by Sara Williams (Univ. of Vermont)

i-Tree Pest Detection data sheet for Eco projects (.pdf) - Basic data entry sheet which can be used with Eco paper entry forms, the Pest Detection Tatum Guideand Pest Detection Field Guide

i-Tree Eco v5 Import Database (.mdb) - This Access database can also be generated from within the i-Tree Eco v5 application and is used for importing external compatible inventory data into an existing Eco full inventory project.

i-Tree Eco v5 Import Spreadsheet - This spreadsheet template is generated from the FullInventoryTrees table within the Eco v5 inventory import database. This template can be used by users interested in setting up a tree inventory project to also be compatible for import into an Eco v5 inventory project. Refer the Eco Manual for data requirements for individual fields.

Eco pest risk and tree host relationship matrix - the pest and tree host matrix used to generate the Eco pest susceptibility report for tree populations.

i-Tree Eco Project Planning and Management Resources

Documents and resources to help plan and manage an i-Tree Eco project such as examples of notification letters, plot maps, equipment lists and project time lines. Most planning resources were developed and provided as a courtesy by past Eco project managers to help future project managers.

Casey Trees UFORE Management Guide - This guide, which was developed by Casey Trees in Washington D.C., provides detailed guidelines for planning, managing and executing an i-Tree Eco project.

Cascade Land Conservany (CLC) Integrated Forest Assessment Report - This document was developed by CLC in Seattle, WA, and describes outreach efforts and guidelines for planning and managing Eco plot access issues.

Idaho Treasure Valley i-Tree Eco Project Management Report - This document developed by David Stephenson, Idaho Department of Lands Community Forestry Program, provides suggestions, methods, tips and tools to help future Eco project managers.

Idaho Treasure Valley Dot Grid Reference Sheet - This document provided courtesy of David Stephenson, Idaho Department of Lands Community Forestry Program, provides instructions for using an English dot grid for aiding in determining land use cover percentages. Refer to the Idaho Eco Mangement Guide above for more details.

Urban Forestry South - Eco Project Cost Estimation - This document, developed by Eric Kuehler from Urban Forestry South, offers a cost estimate for an Eco project. Note - Numerous factors can affect project cost and this is provided only as a general guideline.

Urban Forestry South - Eco Project Time Estimation - This document, developed by Eric Kuehler from Urban Forestry South, provides time estimations for planning and conducting an Eco project.

Urban Forestry South - Eco Project Time Line - This document, developed by Eric Kuehler from Urban Forestry South, is an example of a Eco project time line for a county assessment.

Eco Project Equipment List - This is an example of equipment options for a typical i-Tree Eco project.

Eco plot descriptions Powerpoint (PDF) - This is a PDF file of a PowerPoint used for Eco plot training developed courtesy of Keith Sacre from Barcham Trees U.K.

City of Milwaukee - Notification Letter - This is an example on a access notification letter sent to residents provided courtesy of the City of Milwaukee.

City of Milwaukee - Access Response Card - This is an example on a Eco plot access response card sent to residents provided courtesy of the City of Milwaukee.

City of Milwaukee - Eco Plot Map - This is an example of Eco plot maps utilized by the City of Milwaukee.

Urban Forestry South & University of Florida - Eco Report Explanation Brief - This document, developed by Eric Kuehler, USFS Urban Forestry South, and Francisco Escobedo, University of Florida, provides a brief explanation of and uses for the i-Tree Eco reports.

Eco Data Explanation Sheet - Brief description of Eco sample project plot & tree data collection options.

Eco Plot Data Sheet (Editable .doc version) - Modifiable data sheet for Eco general plot information developed by Sara Williams (Univ. of Vermont)

Eco Tree Data Sheet (Editable .xls version) - Modifiable data sheet for Eco sample project tree data collection developed by Sara Williams (Univ. of Vermont)

i-Tree Eco International Development Resources

International Eco Development Form & Manual

The International Input Manual & Form are not required for typical Eco international projects and are only used if users are interested in researching and providing data needed for improving the model functionality within their own country nation-wide. Please contact i-Tree Support by email info@itreetools.org to discuss additional development and integration requirements before proceeding. For most international users hoping to setup i-Tree in a specific location and not nation-wide, i-Tree Database is a more appropriate option.

i-Tree Eco International Input Manual (.pdf) - A manual providing instructions for populating the international Input Form used only for Eco model development abroad.

i-Tree Eco International Input Form (.xlsx) - A spreadsheet used in conjunction with the Eco International Input Manual for data needed to make the Eco model more applicable outside the U.S.

i-Tree Eco International Input form data field requirements (.pdf) - This document describes optional and required data fields in the Eco International Input form.

i-Tree Eco International Input Supplemental Ozone Selection Document (.pdf) - This document is referenced in step 33 (Figures.doc) of the Eco International Input Manual for users interested in improving Eco model function in their country.

International Pollutant Value Instruction Document (.pdf) - This document provides instructions for filling out the Pollutant Value Input form.

International Pollutant Value Form (.xlsx) - This form is used to provide international monetary pollutant values. Refer to the pollutant value instruction form for details on filling out the spreadsheet form

i-Tree Eco International Research Articles and Reports

Tree Ecosystem Services Assessment Ridge Park - A 2016 i-Tree Eco assessment report for Ridge Park in the City of Unley, South Australia provided courtesy of Jenni Garden.

Valuation of ecosystem services provided by urban trees - This 2016 French research report examines the effect of trees on the urban environment based on the i-Tree Eco project results for the City of Stasbourg. Report provided courtesy of Wissal Selmi.

The role of ecosystem services in climate and air qaulity in urban areas: Evaluating carbon sequestration and air pollution removal by street and park trees in Szeged, Hungary - This 2015 journal article based on the Szeged, Hungary i-Tree Eco project. Report provided courtesy of Marton Kiss.

Adaptation of i-Tree Eco to New Zealand - This 2013 paper investigates the applicability and data requirements for using the i-Tree Eco model to quantify the ecosystem services of urban trees in Auckland, NZ.

Evaluation of Methods for Quantifying Carbon Storage of Urban Trees in New Zealand - This 2013 paper evaluates available methods for quantifying urban tree carbon storage in New Zealand including i-Tree Eco.

i-Tree Database Resources

i-Tree Database provides a central submission site for new location-specific data coming into i-Tree from around the world. Submitted data will be vetted and officially added to i-Tree Eco and potentially other tools in the future. Users in these new locations will be able to update their software and run an analysis with new locations and species without requiring manual processing by the US Forest Service. Below are some files that are used in the data submission process with i-Tree Database.

Eco v6.0 International Guide - for International Projects outside of the U.S, Australia, Canada and the U.K.

Precipitation Data templates - A link to the precipitation data templates used for submitting hourly precipitation data in i-Tree Database.

Air Pollution Data templates - A link to the air pollution data templates used for submitting local pollution data in i-Tree Database.

i-Tree Streets & STRATUM Resources

Documents for STRATUM also pertain to i-Tree Streets as Streets is an adaptation of the original Street Tree Resource Assessment Tool for Urban Forest Managers (STRATUM) application.

Streets FAQs - A link to the Streets FAQ section on the i-Tree Forum where frequently asked Streets-related questions are stored & updated.

Reference Cities - The Science Behind i-Tree Streets (STRATUM) - A summary document explaining the use of regional reference city data as the basis for i-Tree Streets cost and benefit modeling capabilities.

i-Tree Streets & STRATUM Species Codes by Climate Region- A spreadsheet of the i-Tree Streets species codes for each climate zone on individual worksheets.

i-Tree Streets Data Collection Spreadsheet- A spreadsheet template that can be modified for i-Tree Streets paper data collection. Note - All possible (49) Streets fields are provided in this basic template but this can be reduced down as desired to match the data fields that you are interested in collecting for your own Streets project.

STRATUM Population Estimators and Standard Error Equations for Simple Random Street Segment Sampling - A document providing detailed steps of population estimation equation applications used in random sampling.

A Statistical Method for Accurate and Rapid Sampling of Urban Street Tree Populations - A journal article discussing underlying methodology used for developing and conducting simple random sample of urban street tree populations.

A Practical Approach to Assessing Structure, Function, and Value of Street Tree Populations in Small Communities - A journal article describing functionality of the STRATUM application.

Selecting Reference Cities for i-Tree Streets - A journal article describing a systematic process for selecting the best reference city for applications outside the U.S.

Reference City Data Collection Protocols used for i-Tree Streets - A US Forest Service guide describing data collection protocols used for reference city research

Predictive Equations for Dimensions and Leaf Area of Coastal Southern California Street Trees - A journal article describing equations for predicting tree dimensions and leaf area as a function of tree diameter.

Equations for Predicting Diameter, Height, Crown Width, and Leaf Area of San Joaquin Valley Street trees - A journal article describing equations for predicting tree size and leaf area of street trees in San Joaquin Valley, CA.

Rainfall Interception by Sacramento's Urban Forest - A journal 1998 article describing methodology used for the Streets rainfall interception model, CA.

Winter rainfall interception by two mature open-grown trees in Davis, California - A 2000 journal article describing methodology used for the Streets rainfall interception model, CA.

Influence of Trees on Residential Property Values in Athens, GA (U.S.A.): A Survey based on Actual Prices - A 1987 journal article describing the background methodology used in the i-Tree Streets application for estimating street tree aesthetic values.

STRATUM Case Study Evaluation in Minneapolis, MN - An evaluation of volunteer utilization for STRATUM data collection during the i-Tree Pilot Project in Minneapolis.

i-Tree Streets & STRATUM Climate Zone Map

i-Tree Streets Reference City Community Tree Guides

The US Forest Service Community Tree Guides describe the underlying research methods and tree growth models used to develop benefit valuations of street trees within the i-Tree Streets (STRATUM) application. Individual i-Tree Streets climate zones are represented by a specific Tree Guide. Please check other "Streets" Archives tabs for additional related journal articles and reference materials.

Central Florida community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-230 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [2.61 MB]

Northern California coast community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-228 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [2.96 MB]

Lower Midwest community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-219 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [5.62 MB]

Tropical community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-216 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [4.24 MB]

Interior West community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-205 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [4.24 MB]

Temperate Interior West community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-206 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [3.65 MB]

Northeast community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-202 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [4.24 MB]

Midwest community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-199 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [2.63 MB]

Piedmont (South) community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-200 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [3.83 MB]

Coastal Plain community tree guide: benefits, costs, and strategic planting. Gen. Tech. Rep. PSW-GTR-201 Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [3.43 MB]

Southwest Desert community tree guide: benefits, costs, and strategic planting. Phoenix, AZ: Arizona Community Tree Council, Inc. 81 :81 - [3.89 MB]

North - Northern Mountain and Prairie community tree guide: benefits, costs, and strategic planting. Center for Urban Forest Research: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [3.9 MB]

Pacific Northwest - Western Washington & Oregon community tree guide: benefits, costs, and strategic planting. Center for Urban Forest Research: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. - [2.93 MB]

Inland Empire community tree guide Sacramento, CA: Local Government Commission - [2.08 MB]

Southern California Coast community tree guide Sacramento, CA: Local Government Commission - [1.75 MB]

Inland Valleys - San Joaquin Valley community tree guide Sacramento, CA: Local Government Commission - [1.18 MB]

i-Tree Streets Existing Inventory Import Resources

The Streets resources below are for users interested in formatting and importing an existing street tree inventory into i-Tree Streets.

A (3) part instructional video series on the Streets import process can be accessed from the Video Learning page.

Formatting Existing Inventories into Streets Guide - A supplementary guide describing basic steps to plan, format and import an existing tree inventory into a Streets project.

Streets formatting example - An example of a street tree inventory in Excel showing raw data, properly formatted data and data type relationships for project configuration reference. See pages 25 & 26 of the Streets manual & the Formatting Existing Inventories Guide for details.

i-Tree Streets & STRATUM Species Codes by Climate Region- A spreadsheet of the i-Tree Streets species codes for each climate zone on individual worksheets.

i-Tree Streets Excel Import Template- A spreadsheet template showing the data fields used in i-Tree Streets. All fields are shown for reference but species and DBH are the minimum needed for importing.

i-Tree Streets Access Import Template- An Access database showing proper field names and data types for importing into Streets.

i-Tree Canopy Resources

Canopy Technical Notes - A document describing basic procedures, limitations and calculations for i-Tree Canopy.

Canopy boundary shapefile guide - A guide providing basic procedures for downloading and preparing a shapefile boundary with ArcGIS for use in i-Tree Canopy. Procedures should also apply for most GIS packages and free versions such as QGIS.

Canopy air pollutant removal and monetary value model descriptions - This document describes the methods and limitations used in determining default value multipliers for air pollutant removal rates and monetary values for a unit tree cover. The derived multipliers are incorporated in the i-Tree Canopy model to estimate air pollutant removal and values for locations in the conterminous United States.

Carbon Storage and Sequestration by Trees in Urban and Community Areas of the United States - This document is used to determine default values for carbon dioxide storage rates (g/m²) and carbon dioxide sequestration rates (g/m²/yr.) used by the i-Tree Canopy application.

Tree and Impervious Cover Change in U.S. cities - Nowak & Greenfield - A 2012 journal article using photointerpretation (PI) methodology to compare tree & impervious cover change in U.S. cities.

Photo interpretation comparison with NLCD imagery - A 2010 journal article comparing the accuracy of NLCD imagery using photointerpretation (PI). The PI methods are the foundation for the i-Tree Canopy application. Article also describes methods for integrating quality assurance in a survey.

Predefined i-Tree Canopy cover classes

The following (3) pre-defined Canopy cover class files can be used in an i-Tree Canopy project. Download and save the desired cover class file on your computer. Select the file during step 2 of Canopy project configuration to load cover classes. The first (2) files were designed for use in conjunction with an i-Tree Hydro analyses. The third file was used by the Wisconsin DNR for their multi-community Canopy survey to include "potential" tree canopy.

i-Tree Canopy (8) cover class version for i-Tree Hydro - This file has (8) cover classes and differentiates between impervious covers. Example image (.png) of 8 Hydro covers classes.

i-Tree Canopy (6) cover class version for i-Tree Hydro - This file has (6) cover classes and lumps impervious cover in one class. Example image (.png) of 6 Hydro covers classes.

Wisconsin DNR i-Tree Canopy (6) cover class version - This file has (6) cover classes and includes a "possible tree canopy" cover type. Example image (.png) of 6 WDNR covers classes.

i-Tree Design Resources

i-Tree Design Methods - An updated summary describing methods and processes used in the i-Tree Design v6 application. Updated September 2014.

Design application notes - A summary of the i-Tree Design application "About" notes describing the model. Similar information can be accessed directly from the Design application.

i-Tree Design take home activity - This i-Tree Design activity is ideal for middle or high school kids interested in learning about tree benefits and tree identification. The exercise has resources to help kids learn to identify and measure common trees which can then be entered in i-Tree Design.

i-Tree Landscape Resources

i-Tree Landscape Methods, Limitations and Uncertainties - A document (pdf) describing i-Tree Landscape's ecosystem services estimates, modeling methods, data inputs, limitations and uncertainties.

i-Tree Eco United States County-Based Hydrologic Estimates - A document (pdf) describing i-Tree Landscape's county-based hydrological estimates based on i-Tree Eco.

i-Tree v6 Pollutant Removal, Biogenic Emissions and Hydrologic Processes Descriptions v1.1 - A document (pdf) describing common i-Tree v6 ecosystem services methods and processes used by i-Tree Landscape, Canopy, Design and Forecast including international adaptations for Australia, Canada and the United Kingdom. Updated April 14, 2016.

i-Tree Landscape Pollutant Ranges - A spreadsheet (xlsx) showing ranges (min, mean and max) of air pollutant removal per unit tree cover (g/m2) used for i-Tree Landscape. Worksheets provided for county, urban and rural runs.

i-Tree Landscape Carbon Storage and Sequestration for US Counties - A spreadsheet with estimated carbon sequestration and carbon storage values for US counties based on analysis of National Land Cover Data (NLCD) and Forest Inventory and Analysis (FIA) data for each county.

i-Tree Hydro Resources

Hydro: method descriptions and related journal articles

i-Tree Hydro Model and Methodology - A journal article describing the Hydro model structure, theory, inputs, model calibration and outputs.

i-Tree Hydro: Snow Hydrology Update for the Urban Forest Hydrology Model - A 2011 journal article describing updates to the Hydro model to account for snow related effects to enhance the capability of cold climate hydrology modeling.

Watershed hydrograph model based on surface flow diffusion - A 2013 journal article describing research and development of a two-parameter surface diffusion hydrograph model to improve the predictive capability of hydrology modeling.

Surface and Upper Weather Pre-processor for i-Tree Eco and Hydro v1.2 - A description of the methods to process hourly weather parameters which are required in the i-Tree Eco and i-Tree Hydro version 5 applications. (Updated 04/19/16)

Power function decay of hydraulic conductivity for a TOPMODEL-based_infiltration routine - A 2006 journal article describing the development of equations to provide numerical consistency and power function distribution of topographic indexes and baseflow which enhances infiltration equations and subroutines.

A flexible modeling package for topographically based watershed hydrology - A 2005 journal article presenting the object-oriented design and programming of the OBJTOP model which is the basis of i-Tree Hydro. This Wang et al. 2005 paper focuses more on the hydrology of the model.

An object oriented approach to the description and simulation of watershed scale hydrologic processes - A 2005 journal article describing the structure and design of the OBJTOP model which is the basis of i-Tree Hydro. This Wang et al. 2005 paper focuses more on the computer science of the model.

Hydro: project creation files and data example files

i-Tree Hydro Gauging Stations 2005 - A zip file containing a Google Earth (.kmz) file of stream gauging stations available in i-Tree Hydro. Save the zip file on your computer and extract the .kmz file. Refer to the Hydro manual for instructions to use in Google Earth.

i-Tree Hydro model weather data example - An example text file of properly formatted weather data used in the Hydro application.

i-Tree Hydro weather abbreviation codes - A file explaining code abbreviations and definitions for raw weather data used in the Hydro application.

i-Tree Hydro model stream data example - An example file of properly formatted stream data used in the Hydro application. Note- the model uses a .rdb file type. This example file was changed to a text file for viewing

Hydro: i-Tree Canopy cover classes

The following (2) files can be downloaded and used in i-Tree Canopy to estimate the cover class percentages required for i-Tree Hydro projects. Download and save one of the cover class files below on your computer. The file can then be selected during step 2 of i-Tree Canopy configuration to load recommended cover classes for an i-Tree Hydro analyses.

i-Tree Canopy (8) cover class version for i-Tree Hydro - This file has (8) cover classes and differentiates between impervious covers. Example image (.png) of 8 Hydro covers classes.

i-Tree Canopy (6) cover class version for i-Tree Hydro - This file has (6) cover classes and lumps impervious cover in one class. Example image (.png) of 6 Hydro covers classes.

i-Tree Pest Detection

Excel 2003 / Excel 2007 Pest Detection Workbook - Spreadsheets designed for the collection of pest detection protocol information.

i-Tree Pest Detection data sheet for Eco projects (.pdf) - Basic data entry sheet which can be used with Eco paper entry forms, the Pest Detection Tatum Guideand Pest Detection Field Guide.

Pest Matrix List - The complete list of pests used by the pest detection protocol.

Pest Detection Matrix - Signs and symptoms associated with the pests in the pest detection protocol.


Software Developers: Please consider integrating i-Tree Pest Detection with your Tree Inventory and Management software. Refer to the following XML files.

Pest Detection XML Schema Definition - Standardized XML Schema for specifying Pest data in XML format.

Dynamic Matrix Pest List - Source of the dynamically updated pest list for use by the pest detection XML Transformation Sheet.

Pest Detection XML Tranformation Sheet - Transformation file used to translate an XML file that adheres to Pest Detection XML Schema Definition into an HTML table format. This can be used to produce a web viewable version of the XML. Requires the Dynamic IPED Matrix Pest List

Pest Detection XML Sample - A sample XML document that adheres to the Pest XML Schema Definition and utilizes the Pest XML Tranformation Sheet to produce a HTML viewable table based version of it.

i-Tree Streets XML Schema Definition - Standardized XML Schema for specifying an i-Tree Streets inventory in XML form. Requires the Pest Detection XML Schema Definition

i-Tree Streets XML Tranformation Sheet - Transformation file used to translate an XML file that adheres to the i-Tree Streets XML Schema Definition into an HTML table format. This can be used to produce a web viewable version of the XML. Requires the Pest Detection XML Transformation Sheet

i-Tree Streets XML Sample - A sample i-Tree Streets inventory in XML format that adheres to the i-Tree Streets XML Schema Definition and utilizes the i-Tree Streets XML Transformation Sheet to produce a HTML viewable table based version of it.

i-Tree Vue Resources

NLCD imagery correction factor article - A journal article comparing the accuracy of NLCD imagery with photointerpretation used to develop correction factor with Vue in version 4.0.

i-Tree Species Resources

i-Tree Species Methods - A detailed document describing the methodology of the i-Tree Species selector utility.

i-Tree Storm SDAP (Storm Damage Assessment Protocol) Resources

Urban Forests in Florida: Storm Damage Assessment Utility for Estimating Hurrican-Caused Tree Debris A University of Florida Extension fact sheet describing the development and utility of the Florida Hurricane Storm Damage Assessment Protocol.

Hurricane Debris and Damage Assessment for Florida Urban Forests - A journal article describing the research and development of the Florida Hurricane Storm Damage Assessment Protocol.

Florida Storm Damage Assessment Methods: Summary of Methods and Results for the Florida Hurricane adaptation in i-Tree Storm.

Patterns of Urban Forest Debris from the 2004 and 2005 Florida Hurricane Seasons: A journal article discussing storm damage assessment of seven hurricanes during 2004 and 2005 Florida Seasons.

Storm Damage Assessment Classroom Exercise - A procedure and template for conducting a simple, indoors SDAP learning module

Storm Damage Assessment for Urban Trees: A Timely and Accurate Method - A brochure providing a summary description of the SDAP Utility.

2003 Storm Damage Protocol Implementation (OH-03-346) - Final report describing SDAP history, mechanics and implementation strategy.

An Initial Storm Damage Assessment Protocol for Urban and Community Forests - A document describing SDAP methodology and function.

i-Tree Suite General (Change log, System requirements, End users license aggreement, logo)

Change Log - This document describes updates that were made to the i-Tree software suite.

i-Tree System Requirement Document - This document describes basic computer system and hand held data collection device requirements to install and run i-Tree software.

i-Tree End User License Agreement - The i-Tree End Users License Agreement is presented and accepted by users prior to installing or working with the i-Tree desktop software or online tools.

Official Logo

MCTI (Mobile Community Tree Inventory) Legacy Resources

MCTI Paper Tally Form - Standard data collection form for use with legacy copy of MCTI.