Question
Asked 14th Feb, 2020

Why the urban green spaces are important to cities?

Why is it important to maintain, beautify and expand the urban parks?
How one should plan the beneficial and optimal environment, which will tackle the issues of the heat islands, air pollution, and floodwater run-off, cooling and warming, with nature-based methods?
Today, we do not have consistent answers to those important questions and very often, the issues related to the improvement of housing and living conditions, urban ecology, and urban sustainability are resolved through erroneous methods, and unjustified decisions.

Most recent answer

5th Oct, 2020
Mohamed Elkhateb
Cairo University
green space is defined as an open area that offers many benefits; cultural, social, economic and environmental which contribute positively to physical and mental health and improve quality of life. It serves all social categories of society and is accessible and sport-friendly .
The advantages of urban green space can be divided into three main forms: entertainment value, (using open spaces for celebrations, festivals, and events…. etc.), environment value, (providing green elements purifying the air) and the Aesthetic value (adding Soft artificial landscapes or Hard landscape).
To indicate that "green" alone is not enough; the quality of this green color is also important .
As far as health is concerned, green spaces are the “lungs” with which cities breathe and increasing open space areas means a healthy human environment. They play a key role in the beautification of cities including the aesthetic views, such as fountains, ponds, arches, and others. They also embellish the surrounding sites and attract attention, in order to strongly link man with his surroundings. Man needs a place to calm down, to reassure his feelings and senses, and to rest with his beauty that compensates him for the trouble and hardship of his work.
1 Recommendation

Popular answers (1)

23rd Apr, 2020
Hamid Sarkheil
Kharazmi University
Because green spaces make loss Heat Islands effects.
11 Recommendations

All Answers (22)

14th Feb, 2020
Aryan Shahabian
TU Wien
World Health Organization have (at least partly) replied to this question at their website: https://www.who.int/sustainable-development/cities/health-risks/urban-green-space/en/
"Green spaces such as parks and sports fields as well as woods and natural meadows, wetlands or other ecosystems, represent a fundamental component of any urban ecosystem. Green urban areas facilitate physical activity and relaxation, and form a refuge from noise. Trees produce oxygen, and help filter out harmful air pollution, including airborne particulate matter. Water spots, from lakes to rivers and fountains, moderate temperatures."
Urban parks and gardens play a critical role in cooling cities, and also provide safe routes for walking and cycling for transport purposes as well as sites for physical activity, social interaction and for recreation. Recent estimates show that physical inactivity, linked to poor walkability and lack of access to recreational areas, accounts for 3.3% of global deaths.
Green spaces also are important to mental health. Having access to green spaces can reduce health inequalities, improve well-being, and aid in treatment of mental illness. Some analysis suggests that physical activity in a natural environment can help remedy mild depression and reduce physiological stress indicators."
3 Recommendations
15th Feb, 2020
Sony Baral
Tribhuvan University
It's for the ecological right!
2 Recommendations
15th Feb, 2020
Abdelnaser Omran
Bright Star University
Because it helps in providing many benefits like physical activity and it also helps in preventing soil erosion and absorb rainwater, improving drainage and form a refuge from noise.
6 Recommendations
18th Feb, 2020
Bikila Merga
Addis Ababa Science and Technology University
urban green areas are the lung of the city.
1 Recommendation
20th Feb, 2020
Tshiamo Domingo
University of Johannesburg
Urban green spaces in a city prevent urban heat island, create spaces where city can equally cater for elderly, and green spaces also act as the source which purify polluted air within the city.
1 Recommendation
29th Feb, 2020
Usama Badawy
Technische Universität Berlin
2nd Mar, 2020
Bachir Khalil Aouissi
Saad Dahlab University
Very important question.
24th Mar, 2020
Dariusz Prokopowicz
Cardinal Stefan Wyszynski University in Warsaw
Dear Colleagues and Friends from RG, Urban green areas are very important both for the local community living in the city as well as for the entire natural ecosystem and are an important element in counteracting the adverse effects of climate change, including the ongoing global warming process. Recently, it has been proven that honey produced by bees living in beehives located in cities and zeroing in cities, in city parks, flowerbeds created in housing estates contains much less harmful substances such as plant protection products and artificial fertilizers in comparison with honey produced by bees living and feeding in rural areas. Therefore, in some cities, some lawns do not mow or grass on lawns is cut only e.g. 1-2 times a year so that the lawn turns into a flower meadow where various insects feed, especially pollinating insects, including Bee. This is important because the number of bees has been falling rapidly in recent years. In addition, trees and shrubs provide oxygen while also absorbing CO2, i.e. one of the main greenhouse gases. City parks provide a healthy microclimate and are a good place for active recreation. Therefore, green areas in cities should be increased.
Have a nice day. Regards.
Dariusz Prokopowicz
2 Recommendations
24th Mar, 2020
Neil Dagnall
Manchester Metropolitan University
They provide a sense of peace and serenity.
2 Recommendations
23rd Apr, 2020
Ali Jahani
Research Center of Environment and Sustainable Development (RCESD)
follow my articles maybe you find some answers
2 Recommendations
23rd Apr, 2020
Sule Akkoyunlu
Rimini Centre for Economic Analysis
To reduce stress
2 Recommendations
23rd Apr, 2020
Hamid Sarkheil
Kharazmi University
Because green spaces make loss Heat Islands effects.
11 Recommendations
1st May, 2020
Laxmi Raj Joshi
National Trust for Nature Conservation
We have found these spaces very useful during the crisis, say for example an earthquake. They make urban dwellers resilient, happy, and healthy.
1 Recommendation
2nd May, 2020
Aung Ze Ya
University of Technology Yatanarpon Cyber City
It can make our minds to be refresh with the pollutions of the Mega-Cities.
1 Recommendation
2nd May, 2020
Aristidis Matsoukis
Agricultural University of Athens Greece
In addition to the insightful comments above, large urban parks, under certain circumstances, improve human life quality. The chapter and article below may be useful.
4 Recommendations
2nd May, 2020
Mahla Tayefi Nasrabadi
Loughborough University
Green spaces play a significant role in the sustainability of cities.
Some benefits of these spaces are as follows:
- contribute to the mitigation of the urban heat island
- improve air quality,
- decrease noise
- promote mental health,
- encourage people to physical activity,
- generate social interactions.
1 Recommendation
6th May, 2020
Firas Mahmood Mustafa Alfiky
Duhok Polytechnic University
Urban green spaces are important to cities because they help to neutralize the toxins and environmental pollution that are produced by these cities themselves ...
1 Recommendation
16th Jun, 2020
Ali Cheshmehzangi
University of Nottingham Ningbo China
More than beautification, it is vital to keep up and enhance the green spaces functionalities in the city. These should be seen as key infrastructural support, such as for urban green infrastructures. We have an edited book that addresses these for cooling perspective for example: https://www.springer.com/cn/book/9789811066375
1 Recommendation
28th Sep, 2020
Marco Cruz-Sandoval
Tecnológico de Monterrey
Hi there Levan, urban green areas provide a lot of ecosystem services to the livability of cities. The latter is of a great importance since most of these spaces are located unevenly in cities. We have one article highlighting the importance of urban trees with a perspective of environmental justice. Hope it might be of your interest. Greetings.
4th Oct, 2020
Dariusz Prokopowicz
Cardinal Stefan Wyszynski University in Warsaw
The development of urban green areas, city parks, is very important to the urban community for many reasons. City parks are places for recreation, active sports and physical activity. Moreover, local festivals, picnics, cultural events organized by local authorities and other local public benefit organizations, as well as educational and pro-social actions can be held in city parks. In city parks, playgrounds for children are created in specific separate zones. In city parks, flower gardens, flower meadows, etc. can be established so that the ecosystem of flora and fauna of the park and / or forest develops. In city parks there are, among others, pollinating insects, of which there are less and less in agricultural areas. Moreover, city parks improve the air condition in the city.
Greetings,
Dariusz Prokopowicz
4th Oct, 2020
Sule Akkoyunlu
Rimini Centre for Economic Analysis
For happiness and food security.
6 Recommendations
5th Oct, 2020
Mohamed Elkhateb
Cairo University
green space is defined as an open area that offers many benefits; cultural, social, economic and environmental which contribute positively to physical and mental health and improve quality of life. It serves all social categories of society and is accessible and sport-friendly .
The advantages of urban green space can be divided into three main forms: entertainment value, (using open spaces for celebrations, festivals, and events…. etc.), environment value, (providing green elements purifying the air) and the Aesthetic value (adding Soft artificial landscapes or Hard landscape).
To indicate that "green" alone is not enough; the quality of this green color is also important .
As far as health is concerned, green spaces are the “lungs” with which cities breathe and increasing open space areas means a healthy human environment. They play a key role in the beautification of cities including the aesthetic views, such as fountains, ponds, arches, and others. They also embellish the surrounding sites and attract attention, in order to strongly link man with his surroundings. Man needs a place to calm down, to reassure his feelings and senses, and to rest with his beauty that compensates him for the trouble and hardship of his work.
1 Recommendation

Similar questions and discussions

How to calculate cooling interaction between nearby green spaces?
Question
5 answers
  • Lino SanchezLino Sanchez
Hello, so I am trying to understand how to calculate the cooling interaction between nearby urban green spaces within the context of urban heat island mitigation, and I have been unable to find sufficient literature on this specific subject. Many studies have drawn cooling extent buffers around urban green spaces through GIS and remote sensing, but I have not found sufficient literature on just how the cooling influence/impact/effect would be calculated in the region where buffers from nearby green spaces overlap. How does the cooling between two (or three or more) nearby green spaces blend together? Would the cooling effect in the overlap region be the average of both green spaces? I would think this would not make sense, since this would mean receiving a cooling effect value that is less than the highest value, and it would seem that adding more cooling would not lead to less cooling. Would I then just add the cooling effects of both green spaces? I wanted to ask if anyone in this community might have any insight on just how the cooling effect within the buffer overlap region between two nearby green spaces might be calculated. Is there a simple formula for this?
I have looked to this paper "Calculating cooling extents of green parks using remote sensing: Method and test" by Lin et al. (2015):
This details the need to consider the cooling interaction effect between nearby green spaces.
Also, I have looked to this this paper "Estimating the Cooling Effect of Pocket Green Space in High Density Urban Areas in Shanghai, China" by Wu et al. (2021):
This paper shows how cooling between overlapping buffers would be calculated as a sort-of distance-weighted average, which I am still unsure about.
I would really appreciate hearing anyone's thoughts on how this calculation can be carried out!
Thanks!

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