scholarly journals Comparative Ecosystem Benefits of Common Urban Trees and Palms in South Florida

EDIS ◽  
2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Marguerite Beckford ◽  
Gary W. Knox
Keyword(s):  
Growth Habit ◽  
Urban Forestry ◽  
South Florida ◽  
Urban Trees ◽  
Property Owner ◽  
Forestry Extension ◽  
Hardwood Trees ◽  
Compact Growth ◽  
Ecosystem Benefits

This new 2-page factsheet was written to support urban forestry Extension clientele queries for information guiding Florida HOA and property owner decisions on whether to replace hardwood trees with palms, due to palms’ compact growth habit and lower leaf-shed volume, compared to hardwood trees. Written by Marguerite Beckford and Gary W. Knox, and published by the UF/IFAS Environmental Horticulture Department.

Dictionary for Managing Trees in Urban Environments

2009 ◽  
Author(s):  
Danny B Draper ◽  
Peter A Richards
Keyword(s):  
Urban Forestry ◽  
Urban Environments ◽  
Urban Trees ◽  
Plain Language ◽  
Broad Application ◽  
Tree Management ◽  
Comprehensive List ◽  
Plant Sciences ◽  
Management Policies

Dictionary for Managing Trees in Urban Environments is a comprehensive list of terms used in the universal management of urban trees. Many of the terms are from arboricultural science, while others are derived from unproven but commonly applied concepts. Where the existing terminology to describe trees was limited or nonexistent, new terms have been introduced. This dictionary allows for broad application and use by a wide variety of people and conveys in plain language concepts that are sometimes complex. Most major terms have been cross referenced and diagrams have been added for greater understanding. While a number of pertinent botanical terms have been included, those readily found within dictionaries of general plant sciences and botany have been omitted. Dictionary for Managing Trees in Urban Environments promotes a greater understanding of arboriculture and urban forestry, and will assist in the preparation of reports for the management of trees, procedures and planning instruments, such as Tree Management Policies and Tree Management Orders.

scholarly journals Urban Trees and Human Health: A Scoping Review

2020 ◽  
Vol 17 (12) ◽  
pp. 4371 ◽  
Author(s):  
Kathleen L. Wolf ◽  
Sharon T. Lam ◽  
Jennifer K. McKeen ◽  
Gregory R.A. Richardson ◽  
Matilda van den Bosch ◽  
...  
Keyword(s):  
Public Health ◽  
Human Health ◽  
Green Infrastructure ◽  
Weight Status ◽  
Urban Forest ◽  
Research Policy ◽  
Urban Forestry ◽  
Urban Trees ◽  
Environmental Benefits ◽  
Future Research

The urban forest is a green infrastructure system that delivers multiple environmental, economic, social and health services, and functions in cities. Environmental benefits of urban trees are well understood, but no review to date has examined how urban trees affect human health. This review provides a comprehensive summary of existing literature on the health impacts of urban trees that can inform future research, policy, and nature-based public health interventions. A systematic search used keywords representing human health, environmental health, and urban forestry. Following screening and appraisal of several thousand articles, 201 studies were conceptually sorted into a three-part framework. Reducing Harm, representing 41% of studies, includes topics such as air pollution, ultraviolet radiation, heat exposure, and pollen. Restoring Capacities, at 31%, includes attention restoration, mental health, stress reduction, and clinical outcomes. Building Capacities, at 28%, includes topics such as birth outcomes, active living, and weight status. The studies that were reviewed show substantial heterogeneity in purpose and method yet indicate important health outcomes associated with people’s exposure to trees. This review will help inform future research and practice, and demonstrates why urban forest planning and management should strategically promote trees as a social determinant of public health.

The responses to defoliation of two strains of subterranean clover, differing in growth habit, when grown in swards

1980 ◽  
Vol 31 (1) ◽  
pp. 77 ◽  
Author(s):  
RC Rossiter ◽  
WJ Collins
Keyword(s):  
Growth Habit ◽  
Total Yield ◽  
Initial Density ◽  
Subterranean Clover ◽  
Daily Maximum ◽  
Low Density ◽  
Compact Growth ◽  
Effective Yield ◽  
Principal Finding ◽  
Cutting Height

Dense swards of two strains of T. subterraneum-herein referred to as C and P-were compared at two heights of cutting-1.5 cm (low) and 5.0 cm (high)-and two frequencies of defoliation- 1-weekly (frequent) and 4- or 5-weekly (infrequent). Strain C has smaller leaves than P and a compact, in contrast to a lax, growth habit. The swards (initial density of c. 25 plants/dm2) were grown in boxes, out of doors, at Perth from 27 April to 20 September. Mean daily solar radiation varied from c. 10 to 16 MJ/m2 and average daily maximum and minimum temperatures were c. 20� and 10�C respectively. The principal finding was that under defoliation stress (i.e. low cutting) strain C yielded more than P, whereas at a lower level of stress (high cutting) there was usually little if any difference between these strains. This effect was established for the most part before the first harvest, at day 55; thereafter, with continued defoliation stress, strain P appeared to worsen slightly relative to C. The results provide support for the view that strains with a compact growth habit are less susceptible to defoliation (or grazing) stress than taller strains of lax growth habit. Generally, the total yield of tops and also the effective yield (as cut and removed material) decreased when cutting height was lowered. Also, infrequent cutting increased effective yield, particularly under low density (four plants/dm2) as observed in an ancillary experiment.

scholarly journals LONG DAYS PROMOTE FLOWERING OF ARMERIA MARITIMA

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 575e-575
Author(s):  
J.T. Lehmann ◽  
M.L. Albrecht
Keyword(s):  
Cold Storage ◽  
Growth Habit ◽  
Leaf Length ◽  
Plant Production ◽  
Night Temperature ◽  
Potted Plant ◽  
Compact Growth ◽  
Armeria Maritima ◽  
Vegetatively Propagated Plants ◽  
Short Days

Armeria maritima was studied to provide guidelines for flowering potted plant production. Seed and vegetatively propagated plants were exposed to 9-hr, 13-hr, or 17-hr photoperiods. Flowering was enhanced under the 13-hr and 17-hr photoperiods. Peduncle and leaf length were shorter, and plants were more compact under short days (SD, 9-hr photoperiod) than under long days (LD). When grown under SDs then moved at monthly intervals to LDs, the degree to which the compact growth habit (CH) was expressed was dependent upon the length of exposure to SDs. Plants with the CH produced fewer inflorescences than full growth habit plants. Plants held in cold storage (4C) flowered more profusely under LDs, but had a delay in flowering. There was more uniform flowering for plants held in cold storage than those held in a cool greenhouse (7C night temperature).

scholarly journals Spray and Drench Treatments of Paclobutrazol Influence Growth of Dissotis and Tibouchina

HortScience ◽  
2015 ◽  
Vol 50 (10) ◽  
pp. 1514-1517
Author(s):  
Susan M. Hawkins ◽  
John M. Ruter ◽  
Carol D. Robacker
Keyword(s):  
Adverse Effects ◽  
Plant Growth ◽  
Plant Growth Regulator ◽  
Growth Habit ◽  
Dry Weight ◽  
Spray Application ◽  
Compact Growth ◽  
Nursery Production ◽  
Growth Habits ◽  
Open Growth

Dissotis rotundifolia (Sm.) Triana and Tibouchina fothergillae ×pilosa are members of the Melastomataceae family with high ornamental potential. The growth habits of these species are not ideal for nursery production or shipping. D. rotundifolia grows rapidly and needs frequent pruning. T. fothergillae ×pilosa has an open growth habit and could benefit from a more compact form. The effect of the plant growth regulator (PGR) paclobutrazol on D. rotundifolia and T. fothergillae ×pilosa was assessed to determine whether it could produce plants with a more compact growth habit. Paclobutrazol was applied as a drench and a spray. Drench application was more effective in reducing the growth of both species. Spray application was effective in reducing the growth of D. rotundifolia but was not effective on T. fothergillae ×pilosa. Neither drench nor spray application delayed or reduced flowering in D. rotundifolia. T. fothergillae ×pilosa did not flower during the study. For both D. rotundifolia and T. fothergillae ×pilosa, neither drench nor spray application had an effect on root dry weight. Low-to-medium dosages were effective at controlling plant growth in D. rotundifolia and T. fothergillae ×pilosa without adverse effects on plants. Drench treatments have more persistent effects on plant growth than spray treatments.

ABSCISIC ACID LEVELS AND GENETIC COMPACTION IN APPLE SEEDLINGS

1977 ◽  
Vol 57 (1) ◽  
pp. 81-85 ◽  
Author(s):  
J. M. LEE ◽  
N. E. LOONEY
Keyword(s):  
Abscisic Acid ◽  
Rapid Method ◽  
Growth Habit ◽  
Shoot Tip ◽  
Malus Sylvestris ◽  
Growth Types ◽  
Compact Growth ◽  
Controlled Crosses

Apple (Malus sylvestris Mill.) seedlings arising from controlled crosses involving McIntosh Wijcik segregate reliably into normal and compact growth types. The compact or spur-type seedlings have shorter, thicker stems; shorter internodes; and a strong upright, nonbranching growth habit. They contained less free ABA per shoot tip than normal seedlings. A reliable and rapid method for extracting and measuring ABA is described.

scholarly journals Specialized Discounted Cash Flow Analysis Formulas for Valuation of Benefits and Costs of Urban Trees and Forests

2011 ◽  
Vol 37 (5) ◽  
pp. 200-206
Author(s):  
Kristin Peterson ◽  
Thomas Straka
Keyword(s):  
Cash Flow ◽  
Net Present Value ◽  
Flow Analysis ◽  
Urban Forestry ◽  
Urban Trees ◽  
Present Value ◽  
Discounted Cash Flow ◽  
Appraisal Method ◽  
Individual Trees ◽  
Benefits And Costs

Urban trees and forests have distinct benefits and costs that can be evaluated financially. While there are appraisal methods commonly used to value individual trees and urban forests, one method that is difficult to use in practice is a discounted cash flow (DCF) analysis. This is the appraisal method that best accounts for the time value of money and allows for a temporal comparison of benefits and costs. Current timber appraisal methods are discussed for urban situations and DCF analysis is presented as a viable supplemental appraisal method for valuation of the urban trees. Simple models are presented that allow for the solution of DCF-type urban forestry valuations using conventional software valuation packages. Examples are provided of typical urban tree benefit and cost scenarios, with DCF calculations of present value (PV) and net present value using the specialized DCF formulas.

scholarly journals Assessments of Citizen Willingness to Support Urban Forestry: An Empirical Study in Alabama

2011 ◽  
Vol 37 (3) ◽  
pp. 118-125
Author(s):  
Yaoqi Zhang ◽  
Bin Zheng
Keyword(s):  
Family Background ◽  
Urban Forestry ◽  
Holistic Approach ◽  
Urban Trees ◽  
Least Square ◽  
Ordinary Least Square ◽  
Urban Tree ◽  
Tobacco Taxes ◽  
Willingness To Donate ◽  
Ordinary Least Square Regression

Using a survey conducted in Alabama, U.S., this study investigates the attitudes of urban residents toward urban trees and how they would like to support urban tree programs. An ordered logistic model and ordinary least square regression were applied in the analyses. It is found, in general, that people prefer to have trees on their property and in their community for all gender, age, race, income, and other family background, but individuals with higher education had a tendency to like more trees. The most desirable amenity of trees is the improved appearance. The potential risks and hazards would discourage them from having trees in their communities. It is found that each person’s voluntary willingness to donate is significantly less than the amount that he or she feels everyone should contribute to support the programs (e.g., taxation). The awareness of the presence of a tree agency and service can significantly increase the amount of donation a person is willing to make. While private donation is widely agreed upon as an important source of support, using alcohol and tobacco taxes as funding for financing urban tree programs receives more support than the idea of using corporate income tax and property tax. The results indicate that the citizen willingness to support urban forestry are affected by various factors, therefore, a holistic approach is needed to promote city tree programs.

scholarly journals IDENTIFICATION AND MAPPING OF TREE SPECIES IN URBAN AREAS USING WORLDVIEW-2 IMAGERY

2015 ◽  
Vol II-2/W2 ◽  
pp. 175-181 ◽  
Author(s):  
Y. T. Mustafa ◽  
H. N. Habeeb ◽  
A. Stein ◽  
F. Y. Sulaiman
Keyword(s):  
Support Vector Machine ◽  
Tree Species ◽  
Urban Areas ◽  
Vegetation Indices ◽  
Urban Forestry ◽  
Urban Trees ◽  
Support Vector ◽  
Classification Methods ◽  
Tree Detection ◽  
Consistent Information

Monitoring and mapping of urban trees are essential to provide urban forestry authorities with timely and consistent information. Modern techniques increasingly facilitate these tasks, but require the development of semi-automatic tree detection and classification methods. In this article, we propose an approach to delineate and map the crown of 15 tree species in the city of Duhok, Kurdistan Region of Iraq using WorldView-2 (WV-2) imagery. A tree crown object is identified first and is subsequently delineated as an image object (IO) using vegetation indices and texture measurements. Next, three classification methods: Maximum Likelihood, Neural Network, and Support Vector Machine were used to classify IOs using selected IO features. The best results are obtained with Support Vector Machine classification that gives the best map of urban tree species in Duhok. The overall accuracy was between 60.93% to 88.92% and κ-coefficient was between 0.57 to 0.75. We conclude that fifteen tree species were identified and mapped at a satisfactory accuracy in urban areas of this study.

scholarly journals Levantamento quali-quantitativo da arborização urbana da cidade de Baixio – CE

2017 ◽  
Vol 1 (36) ◽  
pp. 99
Author(s):  
Diêgo Lima Crispim ◽  
José Alison Dias de Meneses ◽  
Artur Sales de Abreu Vieira ◽  
Lucas Martins de Araújo ◽  
Josias da Silva Cruz ◽  
...  
Keyword(s):  
Tree Species ◽  
Quantitative Research ◽  
Urban Forestry ◽  
Mechanical Damage ◽  
Visual Assessment ◽  
Abundant Species ◽  
Urban Trees ◽  
Plant Health ◽  
Qualitative Survey ◽  
Total Inventory

<p>Urban forestry is a vital element in improving the quality of life of the population living in the urban environment. However, in several Brazilian cities notes to failure to address the issue of urban trees and their problems. The objective of this research was to conduct a quantitative and qualitative survey of tree species for some public roads in the city of Baixio-CE, as well as identify the species surveyed and analyzing their phytosanitary conditions. The method used for the quantitative research was the total inventory of tree species that are on the streets and sidewalks. In which, we sampled 240 individuals. The results showed that the most abundant species was Azadirachta indica (Neem Indian) with 68% Ficus benjamina L. and (Ficus), 19% of screened individuals. The qualitative method consists in visual assessment and photographic records on the parameters of plant health, quality pruning, interference in the power grid and sidewalk. Of the 240 trees sampled, 223 have good plant health, while 16 are in regular conditions, and only 7, with any occurrence of pests or mechanical damage. There is a homogeneity of the individuals surveyed, indicating a low diversity of the tree species in the public roads. </p>

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