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Using Precedent Data to Design New Orleans' Urban Forest Utility.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Using Precedent Data to Design New Orleans' Urban Forest Utility./
作者:	Williams, Gaylan Daniel.
面頁冊數:	1 online resource (148 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-06, Section: A.
Contained By:	Dissertations Abstracts International84-06A.
標題:	Urban forestry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30000256click for full text (PQDT)
ISBN:	9798363515095

Using Precedent Data to Design New Orleans' Urban Forest Utility.
Williams, Gaylan Daniel.

Using Precedent Data to Design New Orleans' Urban Forest Utility. - 1 online resource (148 pages)

Source: Dissertations Abstracts International, Volume: 84-06, Section: A.

Thesis (Ph.D.)--Southern University and Agricultural and Mechanical College, 2022.

Includes bibliographical references

A public utility provides goods or services to the public. The urban forest is an element of the public utility systems, and it should be designed, enhanced, and maintained as such, because it provides ecosystem services such as storing carbon, sequestrating CO2, lowering temperature, preventing stormwater runoff, removing air pollutants, releasing oxygen, etc. However, seldom do city planners consider the urban forest as an extensive utility grid. The goal of this study is to build a deeper understanding and promote better design of the urban forest utility. The objectives are 1. Using existing city tree inventory data to gain better insight on urban forest utility in New Orleans, 2. Quantify urban forest ecosystem services using a city park in New Orleans as an example, 3. Assess the relationships among tree structure (species, number, size, age) and ecosystem services/benefits provided, and 4. Provide design recommendations including species selection, location, and benefits.This study focuses on New Orleans because its urban forest is still recovering from Hurricane Katrina's damage. The study commenced with an analysis of New Orleans public tree inventory data collected by Arbor Pro in 2019. For urban forest utility ecosystem service quantification, a 1.75-acre Mirabeau community park located at the intersection of Chase and Chatham Drives in the Gentilly Neighborhood of New Orleans was used as an example. Using aerial imagery, a total of 59 existing trees in the park were completely inventoried including tree diameter and health condition. The team also identified the spaces/sites that more trees can be planted in the park. Data collected were entered into i-Tree Design model for analyses. Seven scenarios - year 0/current year, year 2, 10, 20, 40, 50, and 99 were selected for estimating current and forecasting the ecosystem services/benefits trees in the park provide.Results indicated that currently, the park trees provided $524.00-dollars' worth in benefits, including 139,781-gallons of intercepted rainfall, 17,250-gallons of stormwater run-off diverted, 132-pounds of greenhouse gases and particulates removed thereby improving air quality, and 15,404-pounds of carbon dioxide sequestered and stored in the tree's bio-mass. The study determined that additional trees may be planted in the park without compromising the parks' program of activities. For new tree planting, the selected species included the American elm, American holly, American sycamore, green ash, red maple, sweetbay magnolia, and longleaf pine, which are native trees that are currently not present in the park. The correlation between tree species, size, and location were the critical elements needed to understand performance expectations for the park's urban forests in the future, as they were linked to performance. The forecasted services/benefits presented a series of trends. While the stormwater runoff prevention related benefits steady increased with each projection, the benefits related to air quality did not. The air quality and carbon sequestration benefits peaked at years 50 and 20, respectively, while a decline in the nominal benefits after year 40 is projected. The decline in carbon sequestration was believed to be linked with the urban forest's maturity.The study determined that certain tree species on average perform better under specific replicable site conditions in New Orleans. The data indicates that the red maple provides the highest ecological services during its lifetime, specifically regarding carbon sequestration. The study provided information on how to design and estimate the ecological functional of the urban forestry utility system that can be easily adopted by cities and replicated by landscape architects. The results indicated that the collective benefits urban trees provide are public services that should be funded and equally accessible throughout all communities. The findings can be used by the landscape architects to specify the requisite tree species and planting locations to ensure maturity and achieving maximum landscape performance benefits.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798363515095Subjects--Topical Terms:

704817
Urban forestry.
Subjects--Index Terms:

City planningIndex Terms--Genre/Form:

542853
Electronic books.

Using Precedent Data to Design New Orleans' Urban Forest Utility.
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504 $a Includes bibliographical references
520 $a A public utility provides goods or services to the public. The urban forest is an element of the public utility systems, and it should be designed, enhanced, and maintained as such, because it provides ecosystem services such as storing carbon, sequestrating CO2, lowering temperature, preventing stormwater runoff, removing air pollutants, releasing oxygen, etc. However, seldom do city planners consider the urban forest as an extensive utility grid. The goal of this study is to build a deeper understanding and promote better design of the urban forest utility. The objectives are 1. Using existing city tree inventory data to gain better insight on urban forest utility in New Orleans, 2. Quantify urban forest ecosystem services using a city park in New Orleans as an example, 3. Assess the relationships among tree structure (species, number, size, age) and ecosystem services/benefits provided, and 4. Provide design recommendations including species selection, location, and benefits.This study focuses on New Orleans because its urban forest is still recovering from Hurricane Katrina's damage. The study commenced with an analysis of New Orleans public tree inventory data collected by Arbor Pro in 2019. For urban forest utility ecosystem service quantification, a 1.75-acre Mirabeau community park located at the intersection of Chase and Chatham Drives in the Gentilly Neighborhood of New Orleans was used as an example. Using aerial imagery, a total of 59 existing trees in the park were completely inventoried including tree diameter and health condition. The team also identified the spaces/sites that more trees can be planted in the park. Data collected were entered into i-Tree Design model for analyses. Seven scenarios - year 0/current year, year 2, 10, 20, 40, 50, and 99 were selected for estimating current and forecasting the ecosystem services/benefits trees in the park provide.Results indicated that currently, the park trees provided $524.00-dollars' worth in benefits, including 139,781-gallons of intercepted rainfall, 17,250-gallons of stormwater run-off diverted, 132-pounds of greenhouse gases and particulates removed thereby improving air quality, and 15,404-pounds of carbon dioxide sequestered and stored in the tree's bio-mass. The study determined that additional trees may be planted in the park without compromising the parks' program of activities. For new tree planting, the selected species included the American elm, American holly, American sycamore, green ash, red maple, sweetbay magnolia, and longleaf pine, which are native trees that are currently not present in the park. The correlation between tree species, size, and location were the critical elements needed to understand performance expectations for the park's urban forests in the future, as they were linked to performance. The forecasted services/benefits presented a series of trends. While the stormwater runoff prevention related benefits steady increased with each projection, the benefits related to air quality did not. The air quality and carbon sequestration benefits peaked at years 50 and 20, respectively, while a decline in the nominal benefits after year 40 is projected. The decline in carbon sequestration was believed to be linked with the urban forest's maturity.The study determined that certain tree species on average perform better under specific replicable site conditions in New Orleans. The data indicates that the red maple provides the highest ecological services during its lifetime, specifically regarding carbon sequestration. The study provided information on how to design and estimate the ecological functional of the urban forestry utility system that can be easily adopted by cities and replicated by landscape architects. The results indicated that the collective benefits urban trees provide are public services that should be funded and equally accessible throughout all communities. The findings can be used by the landscape architects to specify the requisite tree species and planting locations to ensure maturity and achieving maximum landscape performance benefits.
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653 $a Tree metrics
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