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Tree health analysis in the Phoenix Metropolitan Area

Publication date: 2006

Author(s):

  • Jean Stutz

Abstract:

Urban trees contribute significantly to human health and environmental quality but assessments of their health are rare.  This project involved developing an urban tree health monitoring protocol for use in the Southwestern US and using it to conduct field assessments of urban tree health in the Phoenix urban ecosystem during the winter/spring of 2006.  Field manuals prepared by the USDA Forest Service for use in monitoring urban forest health (Cumming et al. 2001) were adapted to reflect the unique stresses and diseases that occur in urban areas in the southwestern US.  Tree health was then assessed using  a subset of  field plots that have been established as part of the Survey 200 project and NPP intensive monitoring project as a foci.  Ten to fifteen trees were assessed at each site for general tree health including canopy condition, canopy dieback and disease and pest problems.  Abiotic problems were also assessed including stress problems, nutrient deficiency symptoms, improper pruning practices, trunk damage and girdling.


Keywords:


Temporal Coverage:

2006-01-05 to 2008-02-28

Geographic Coverage:

Geographic Description: Phoenix metropolitan area in Arizona, USA
Bounding Coordinates:
Longitude:-112.794316 to -111.566698
Latitude:33.838010 to 33.198342

Contact:

Information Manager, 
Global Institute of Sustainability,Arizona State University,POB 875402,Tempe
 caplter.data@asu.edu

Data Files (7) :

Tabular: 155_general_health_1.csv

Description: measures of general tree health at sites

Column Description Type Units
num_pruning_wounds This is the amount of pruning wounds found on each sample described as some, none, or many.
string
canopy This is the health of the canopy as described by very good, good, fair, and poor.
string
staking_damage This is the type of damage sustained from staking. The measurements are no damage, girdled, and girdled - guy wire still attached.
string
crossing_branches This indicates whether crossing branches are present or absent in the tree.
string
sunburn This indicates the presence or absence of sun damage to the tree.
string
pest This indicates the presence or absence of pests.
string
sample_id The sample id is a unique number assigned to each sample used in this study.
int unsigned
sampling_event_id The sampling even is a number used to identify the sampling conditions.
int unsigned

Tabular: 155_pest_problems_1.csv

Description: pest problems of specific trees at each site

Column Description Type Units
slime_flux This indicates the amount of slime on the sample as none, low, moderate, and high.
string
fasciation This indicates the presence or absence of fasciation on the sample.
string
ash_decline This number indicates the percent of the sample affected by ash decline.
tinyint unsigned dimensionless
sapsucker_damage This indicates the presence or absence of damages caused by sapsuckers.
string
woodrot This indicates the absence or presence of wood rot. In the event wood rot is present, the general location (such as main trunk) is indecated.
string
gummosis This indicates the amount of gummosis present on the tree. It is indecated with none, low, moderate, or high.
string
watersoakedbark This indicates the presence or absence of water soaked bark.
string
sooty_canker This indicates the absence or presence of a sooty canker in the main trunk or canopy.
string
chlorosis This indicates the percent of the sample affected by chlorosis.
tinyint unsigned dimensionless
canopy_dieback This indicates the percent of the canopy that has died.
tinyint unsigned dimensionless
aphids This indicates the presence or absence of aphids.
string
mites This indicates the presence or absence of mites.
string
pine_blight This indicates the percent of the sample affected by pine blight.
tinyint unsigned dimensionless
stubborn_disease This indicates the presence or absence of stubborn disease
string
nutrient_deficiency This indicates the deficient nutrient in the tree.
string
verticillium_wilt This indicates the percent of the sample affected by verticillium wilt.
tinyint unsigned dimensionless
sampling_event_id The sampling event is a number used to identify the sampling conditions.
int unsigned
sample_id The sample id is a unique number assigned to each sample used in this study.
int unsigned

Tabular: 155_pruning_wounds_1.csv

Description: pruning wounds on trees

Column Description Type Units
pw_id This is the pruning wound identification abbreviation.
string
wound_name These are the types of wounds abbreviated by the id.
string
description These are the definitions of the wounds.
string

Tabular: 155_sites_1.csv

Description: site descriptions

Column Description Type Units
site_id Unique combinations of numbers and letters which make up the abbreviation for the sites used in this study.
string
site_number These are numbers assigned to plots within the sites.
integer
zone These are the zones within the sites where samples are taken.
integer
site_description These are descriptions of basic landuse at each site.
string
site_address These are street addresses for each site.
string
site_latitude These are the latitudes for each site.
float degree
site_longitude These are the longitudes for each site,
float degree
site_notes These are extra notes concerning the sites.
longtext

Tabular: 155_taxon_list_1.csv

Description: lookup table for species codes and taxonomic information

Column Description Type Units
taxon_id These are abbreviations for each taxa.
string
family This is the family each taxon belongs to.
string
scientific_name This is the full scientific name of each taxon.
string
az_itis This is an internal code.
integer
veg_common_name This is the common name for each taxon.
string
veg_habit This is the type of plant each taxon is.
string
spad_slope This is the slope of the chlorophyll reading of each taxon.
float
spad_intercept This is the intercept of the chlorophyll reading of each taxon.
float

Tabular: 155_trees_1.csv

Description: description of trees on sites

Column Description Type Units
site_id Unique combination of numbers and letters representing each site used in this study.
string
tree_id Identification number for each tree unique to that site.
tinyint unsigned
taxon_id Unique abbreviations of taxa.
string
sample_date Date the sample was taken.
datetime Format: MM/DD/YYYY
DBH The measured diameter at breast height
double unsigned centimeter
sampling_event_id Unique numbers assigned to each sampling event.
int unsigned

Tabular: 155_wounds_1.csv

Description: wounds on trees at each site

Column Description Type Units
open_callused Whether the wound is open or callused over.
string
location Location of the wounds on the sample.
string
percent Percent of the sample that had been wounded.
int unsigned dimensionless
pruning_wound Types of prunning wounds found.
string
sampling_event_id Unique numbers identifying the sampling event.
int unsigned
sample_id Unique numbers which identify the sample.
int unsigned

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