Back to: Environmental Biology 200 Level
Welcome to class!
Hello brilliant mind! Have you noticed how our cities, like Lagos or Abuja, are full of life beyond just people and buildings? Even in busy places, we see trees, birds, insects, and small patches of green spaces. Today, we are going to learn about Urban Ecology and Green Infrastructure, where we’ll understand how nature and human-built environments can live together in harmony.
Urban Ecology And Green Infrastructure
What is Urban Ecology?
Urban ecology is the study of living organisms, plants, and the environment within cities and towns. It looks at how humans, animals, plants, and natural systems interact in urban areas. For example, the trees along Lagos streets, the birds flying around Abuja gardens, and the parks in Port Harcourt are all parts of urban ecology.
Why is Urban Ecology Important?
It improves air quality by reducing pollution.
It cools down cities, which are often hotter due to many buildings (a phenomenon called the urban heat island effect).
It supports biodiversity by giving animals and plants a place to thrive.
It improves mental and physical health by providing parks and natural spaces for relaxation.
What is Green Infrastructure?
Green infrastructure refers to the network of natural and semi-natural systems in cities designed to support both humans and nature. Examples include city parks, rooftop gardens, green walls, tree-lined roads, and wetlands built to manage stormwater.
Examples of Green Infrastructure in Nigeria
Millennium Park in Abuja: A large green space for recreation and relaxation.
Lekki Conservation Centre in Lagos: A preserved natural area where wildlife can live within the city.
Tree planting programmes: Carried out in cities to reduce air pollution and provide shade.
Benefits of Green Infrastructure
Reduces flooding by allowing rainwater to soak into the ground.
Lowers temperature in cities by providing shade and cooling.
Encourages urban farming, such as rooftop vegetable gardens.
Beautifies cities and improves the quality of life.
Challenges of Urban Ecology
Overpopulation leads to deforestation and reduced green spaces.
Pollution from cars and industries affects plants and animals.
Poor city planning often ignores the need for parks and trees.
How We Can Improve Urban Ecology
Plant more trees and create more public parks.
Promote recycling and reduce pollution.
Encourage rooftop gardens and vertical greenery on buildings.
Educate communities on the benefits of protecting urban nature.
Summary
- Urban ecology studies how humans, plants, and animals interact in cities.
- Green infrastructure includes parks, rooftop gardens, and natural spaces.
- It improves air quality, reduces flooding, and supports biodiversity.
- Planting trees and creating green spaces can make our cities healthier and more beautiful.
Evaluation
- Define urban ecology and give one example from Nigeria.
- What is green infrastructure?
- Mention three benefits of green infrastructure in cities.
- List two challenges facing urban ecology.
You are doing wonderfully! Remember, even small actions like planting a tree or keeping your surroundings clean make a huge difference in creating greener, healthier cities. Keep shining with Afrilearn — you’re building knowledge that changes the world.