The Impact of Declining Urban Tree Canopy on Windbreak Functionality for Buildings.

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In the heart of bustling cities, urban trees stand as silent guardians, their branches outstretched in a dance with the wind, offering solace amidst the chaos of urban life. However, their resilience is threatened by indiscriminate felling, leaving them vulnerable to neglect and decline.

Yet, they remain steadfast, a barrier against nature's fury, reminding us of our interconnectedness with the environment. Amidst the whispers of the wind, their plea for preservation echoes, urging us to plant the seeds of tomorrow and nurture a world where humanity and nature coexist harmoniously, bound by love and shared destiny.

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Introduction

In recent years, Nigeria has witnessed a troubling trend: the rampant cutting of trees before and during construction, coupled with a lack of adequate tree replanting post-construction. This practice not only diminishes the aesthetic appeal of urban areas but also has significant implications for the functionality of buildings, particularly in mitigating the adverse effects of windstorms exacerbated by climate change.
The importance of urban tree canopy in acting as a natural windbreaker cannot be overstated. Trees, especially when strategically planted around buildings, serve as vital barriers against the damaging effects of strong winds. However, the widespread removal of trees without proper reforestation efforts has led to a decline in the urban tree canopy across many Nigerian cities.
In instances where trees are replanted, they often fail to match the size and canopy coverage of the ones that were removed. Moreover, the species chosen for replanting are frequently inappropriate for providing effective windbreak functionality. Instead of opting for smaller, dense species capable of forming a protective canopy, larger ornamental trees are often favored for their aesthetic appeal. As a result, the windbreak effectiveness of these replanted trees is severely compromised.

The consequences of this decline in urban tree canopy are most evident during severe weather events, such as rain and windstorms. Without adequate windbreak protection, buildings are more vulnerable to structural damage, leading to roof lifting and the subsequent loss of property. Homes, businesses, and infrastructure are all at risk, exacerbating the economic and social impact of these natural disasters.
To address this pressing issue, a paradigm shift towards environmental sustainability is imperative. Urban planning and development must prioritize the preservation and expansion of the urban tree canopy. Policies mandating the replanting of trees after construction, with an emphasis on selecting species conducive to windbreak functionality, should be implemented and enforced rigorously.

Furthermore, community awareness and engagement initiatives are essential to foster a culture of tree stewardship and environmental responsibility. Educating the public about the multifaceted benefits of urban trees, including their role in mitigating climate change impacts, can inspire collective action towards safeguarding our urban forests.

The "Plant a Tree Today" campaign in Nigeria advocates for the planting of select tree species known for their effectiveness as windbreakers, thus enhancing the resilience of communities against the adverse effects of windstorms.

Planting tree campaign in Nigeria 

Among the recommended species are the indigenous African mahogany (Khaya senegalensis), with its sturdy trunk and expansive canopy, providing excellent protection against strong winds. Additionally, the Nigerian mahogany (Daniellia oliveri) offers similar windbreak functionality, coupled with its ability to thrive in various soil types.

A Neem Tree 

Another valuable addition is the neem tree (Azadirachta indica), renowned for its drought resistance and dense foliage, making it an ideal choice for urban windbreaks. These carefully selected species not only serve as natural barriers against wind damage but also contribute to the biodiversity and ecological integrity of Nigeria's landscapes, ensuring a sustainable future for generations to come.

Conclusion

The decline in urban tree canopy poses a significant threat to the windbreak functionality of buildings in Nigeria, leaving communities vulnerable to the adverse effects of climate change-induced windstorms. By prioritizing the preservation and restoration of urban trees, we can enhance the resilience of our cities, mitigate property damage, and promote environmental sustainability for future generations.

Thank you for taking out time to read my blog. While you are here, you can catch up on my previous article on,
Dubai Flood: Reflections on an Artificial Urban Landscape by clicking on the Link Below.
https://www.bulbapp.io/p/9d15a09e-227a-49b1-9b89-8d1b3f35e1e4/dubai-flood-reflections-on-an-artificial-urban-landscape?s_id=30bc26d6-4521-40b6-8275-bb22da6bf5b0

References:

1. United Nations Environment Programme. (2019). *Urban Forestry for Resilience: Addressing Climate Change and Flooding with Trees*. Retrieved from https://www.unenvironment.org/

2. Nigerian Conservation Foundation. (2022). *Urban Tree Canopy Assessment Report*. Retrieved from https://www.ncfnigeria.org/

3. World Bank Group. (2021). *Urban Development and Climate Change Resilience in Nigeria: A Policy Note*. Retrieved from https://www.worldbank.org/