7. Forest & Jungle Coverage

 

When people think about Sri Lanka, one of the first things that comes to mind is greenery and for good reason. Forests and jungles cover a significant part of the island and play a massive role in shaping ecosystems, climate, and even human life. But what many don’t realize is that not all forests in Sri Lanka are the same. They change depending on rainfall, altitude, and location, and each type has its own unique “personality.”

Overall, forest cover in Sri Lanka is estimated to be around 30% of the total land area (though it has decreased over time due to human activities). These forests are spread across different zones Wet Zone, Dry Zone, and mountainous regions and each zone supports a different type of forest ecosystem.

Let’s start with the most famous and richest type the tropical wet evergreen forests, commonly known as rainforests. These are mainly found in the Wet Zone, especially in areas like Sinharaja Forest Reserve. Walking into a place like Sinharaja feels like stepping into another world. The air is humid, the trees are tall and tightly packed, and the ground is covered with layers of plants.

These forests receive heavy rainfall throughout the year, which allows plants and animals to thrive. They are incredibly rich in biodiversity, with many species that you won’t find anywhere else in the world. Rivers and streams flowing through these forests keep the ecosystem alive, providing constant water supply.

Now, if you move away from the Wet Zone into the Dry Zone, the forests change completely. These are called dry evergreen forests. They are found in large parts of the country, including areas around Yala National Park and Wilpattu National Park.

These forests don’t get as much rain, so the trees are adapted to survive long dry periods. Leaves may fall during droughts to conserve water, and the forest is more open compared to rainforests. Even though they look less dense, these forests are home to some of the most iconic wildlife in Sri Lanka, including elephants, leopards, and deer. Water sources like rivers and tanks become critical here, especially during dry seasons.

Next, let’s go up into the mountains, where we find montane forests. These are found in high-altitude areas like Horton Plains National Park and parts of the Central Highlands. These forests are very different from both wet and dry forests.

Here, the climate is cooler, often misty, and sometimes windy. Trees are shorter, twisted, and covered with moss. These forests are often called cloud forests because they are frequently covered in fog. They are extremely sensitive ecosystems, and even small environmental changes can affect them.

Apart from these major types, Sri Lanka also has riverine forests, which grow along riverbanks, and mangrove forests, which are found near coastal areas where rivers meet the sea. Mangroves are especially important because they protect coastlines from erosion and provide breeding grounds for fish.

What’s really important to understand is how forests and rivers are connected. Forests help regulate water flow by absorbing rainfall and slowly releasing it into rivers. Without forests, rainwater would rush directly into rivers, increasing the risk of floods and reducing groundwater storage.

At the same time, forests help maintain climate balance. They absorb carbon dioxide, produce oxygen, and help control temperature and humidity. This is why areas with dense forest cover feel cooler and more comfortable compared to urban areas.

But unfortunately, forest coverage in Sri Lanka has been decreasing over time. Human activities like agriculture expansion, urban development, and illegal logging have led to deforestation. When forests are removed, it doesn’t just affect trees it affects entire ecosystems.

 

Deforestation leads to:

• Loss of wildlife habitats
• Increased soil erosion
• Disruption of water cycles
• Higher risk of floods and droughts

In simple terms, removing forests weakens the entire environmental system.

However, there are also conservation efforts in place. Many forest areas are protected as national parks and reserves. These efforts aim to preserve biodiversity and maintain ecological balance for future generations.

So when you think about forests and jungles in Sri Lanka, don’t just see them as green areas on a map. They are living systems that support rivers, wildlife, climate, and human life. Each forest type whether it’s a dense rainforest, a dry forest, or a misty mountain forest plays a unique role in keeping the island alive and balanced.