Congo Basin

The Congo Basin is the sedimentary basin of the Congo River. It is in Central Africa, in a part called west equatorial Africa. This area is sometimes called the Congo. The Congo Basin has some of the largest tropical rainforests in the world. It is an important source of water for farming and making energy.

Course and drainage basin of the Congo River

The rainforest in the Congo Basin is the largest rainforest in Africa. It is second in size only to the Amazon rainforest. Because of its size, the forest in the Congo Basin helps mitigate climate change by storing carbon. However, deforestation and effects from the impacts of climate change can harm the forest.

Eight sites in the Congo Basin are on the World Heritage List, with five also on the list of World Heritage in Danger (all five are in the Democratic Republic of the Congo). About fourteen percent of the humid forest in the Congo Basin is protected.

Geology

The Congo Basin is a large dip or low area within the Congo Craton. It is made of newer sedimentary rock sitting inside an older part of Earth’s surface. This area formed over a very long time, wearing away older rock and making space for new layers.

From the Triassic period until today, sediments have built up in the basin. Evidence from the Jurassic period shows there was once a freshwater lake here, which lasted into the Early Cretaceous. Later, in the Late Cretaceous, the basin connected to a large sea, letting sea water flow in. This time left behind fossils from plants, small animals, and fish. Some rock layers also contain diamonds. By the Cenozoic era, rising land blocked the sea. The area became wet and marshy, then dry and seasonal, and finally wet again.

Description

History

Pygmy hunter-gatherers in the Central African Republic.

The Congo Basin was first home to the pygmies, who lived in small groups in the thick forests. Later, the Bantu peoples migrated to the area and created the Kingdom of Kongo.

In the late 1800s, Belgium, France, and Portugal took control of the region. This was decided during the Berlin Conference in 1885. Today, many people live in and around the Congo Basin.

Climate

Aerial view of the Lukenie River as it meanders through the Central Congolian lowland forests

The Congo Basin is very important for the world's climate. It gets a lot of rain, between 1500 and 2000 mm each year. This area has many thunderstorms and the most lightning strikes of any place on Earth. The rain helps grow the second largest rainforest in the world, which plays a big role in the Earth's carbon cycle.

The Congo Basin has two main rainy seasons, from March to May and September to November. Temperatures here are usually between 20 and 30 °C, which are cooler than in hot deserts like the Sahara and Kalahari. These temperature differences help create wind systems that affect weather far away. Scientists think the region will get hotter due to global climate change, and heavy rains may become more common.

Flora and fauna

The Congo forest is home to many amazing animals, such as the okapi, African forest elephant, pygmy hippopotamus, bongo (antelope), chimpanzee, bonobo, and the Congo peafowl. One of the biggest animals there is the leopard. The forest also has the endangered western lowland gorilla.

Ituri Rainforest

The Congo Basin is the largest forest in Africa, with more than 10,000 different kinds of plants. These forests cover a huge area of 1.6 million km². The forest provides important wood, like African teak, which people use for furniture and flooring. About 40 million people live near these woodlands and depend on them for their everyday lives.

Ecology and protection

The forests of the Congo Basin are very important for our planet. They help clean the air by trapping carbon, a gas that can warm the Earth. These forests hold a lot of carbon. If these forests are cut down, the trapped carbon could be released into the air.

Scientists have found that these forests store a lot of carbon, especially in areas called peatlands. Protecting these forests is very important, but they face threats from logging and road building. Some groups are working to help protect these forests and support the people who live near them.

National parks

Here are some national parks in the Congo Basin: