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Vegetation Zones in Nigeria And Their Characteristics

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The different vegetation zones in Nigeria is greatly influenced by the varying climatic conditions across the country. From the north down to the southern part of the country, there are distinguishing temperature changes, atmospheric conditions, and other geographical factors which brings about these variation in vegetation. Nigeria’s vegetation is very disparate and each accompanied with some interesting features. How much do you know about these vegetation? If you would want to know more about it, this write-up will peek on these vegetation zones in the country. Here, we will highlight the various vegetation zones in Nigeria and their respective characteristics.

vegetations in Nigeria

Vegetation is a term used to classify plants that are covered or grown in a particular area. Vegetation usually depends on the climate zones of the country. Just as the climate and temperature is changing in all parts of the country, then the vegetation will also change to reflect this. Hence, vegetation zones in the country shows the relation between the vegetation and the climatic conditions of different areas of the country.

List of Vegetation Zones in Nigeria and Their Characteristics

There are many kinds of vegetation in Nigeria, but they can be structured to major ones which reflect for most areas of the country. A vegetation of a specific area depends on the type of plants covered there, and it may differ from other areas. The following is the list of notable vegetation zones in Nigeria;

  • Rainforest
  • Fresh Water Swamp Forest
  • Mangrove Swamp Forest
  • Montane Vegetation
  • Guinea Savannah
  • Sudan Savannah
  • Sahel Savannah

Other minor vegetation zones include Marginal Savannah, Woodland, Short Grass Savannah, etc. More explicitly, we will highlight these vegetation zones and know their different features. Through this, we will also know the regions that each of these vegetation is found.

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Below is the detailed rundown of the different vegetation zones in Nigeria and their characteristics;

Rainforest

Rainforest is a significant vegetation in most areas of the country. It covers high-mountainous multi-tiered tropical forests that have been preserved. This vegetation is found mainly along the right bank of the lower reaches of the River Niger and in the valley of the River Cross. Trees in the rainforest areas are of the height of 40-45 m form the first upper tier. These trees are very huge such that they make up most forest reserves in the country. In the other way, the trees of the second and third tiers are especially densely strewn with epiphytes, intertwined with lianas that rush towards the sun.

In the north of the rainforest zone, the annual amount of rainfall does not exceed 1600 mm, and this leads to the decrease of forest growth. Also, relative humidity is lower here, and soils are drier. Some trees shed their leaves in the dry season. Still, further to the north of the vegetation, the forests are becoming sparser, and leads to the beginning of the savannah vegetation.

Freshwater Swamp Forest

The freshwater swamp forest is one of the major types of vegetation in the forest zone of Nigeria. The others are the coastal vegetation, mangrove forest, riparian forest and lowland rainforest, which all make up the tropical rainforest of southern Nigeria.

The freshwater swamp forest is a species diverse vegetation and it’s one of the most productive ecosystems of the world. Found in the Niger Delta region of the country, it is a store house of biological diversity providing suitable habitats for plants and some rare endangered wildlife. The region is categorized by freshwater, and this makes the vegetation zone more suitable for fish farming.

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Mangrove Swamp Forest

The Mangrove vegetation is a type of forest vegetation found just before the Atlantic ocean. This vegetation depends on the coastal location of the zone which the constant influence of salt sea water gives the nature of these areas. The soil in the Mangrove zone is extremely poor and contains salt. The mangrove areas which are stabilized and are non-salt-marsh are suitable for growing of rice. This type of vegetation is found in the coastal southern part of the country.

Montane Vegetation

The Montane vegetation zone is a specified vegetation situated in high-mountain areas. This is the mountain and plateaus vegetation that is foundbin the elevated areas like Jos Plateau and Obudu. The Jos plateau is one of the highest points in Nigeria and it is covered with this type of vegetation. The Montane vegetation is a grassland zone but the slopes are covered by forests. This characteristics make the area to be potentially perfect for growing of rich crops of different vegetables and small grain crops, and also a good place for pastures like the Obudu Cattle Range.

Guinea Savannah

This is the largest vegetation zone in the country. The Guinea Savannah covers almost half of the territory of Nigeria. These regions is occupied by moist guinea grassland, and the annual precipitation here is 1000-1400 mm on the average. The grass grown here reaches a great height which could cover a man, and also make a large animal invisible. This type of savanna vegetation is where the elephant grass is very predominant.

On classification of the trees in this area, groups of them rise above the grassy sea: drought-resistant kaya, isoberlinia, mitragina. Some of them have trunks twisted from annual fires.  A look at the climatic conditions, the savanna looks lifeless and the trees stand bare in the first half of the dry season. In the middle of this season, a smoke screen rises over the savanna: the dry grass burns, which is burned yearly while preparing the land for crops. On appearance of the first rains, juicy shoots of young grass and green leaves grows to keep alive the Guinea Savannah.

Sudan Savannah

The Sudan savannah is a vegetation in the north of the Guinea savanna. Here, the amount of precipitation decreases to 500-1000 mm and the dry period lasts more than six to seven months. Also, parts of the vegetation zone is covered with a dense but low grass. The different types of acacia gives a distinctive appearance of the landscape of this vegetation.  Moreso, the baobabs is very predominant as it is difficult to imagine the Sudanese savanna without them.

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On the whole, the natural conditions of the Sudanese savanna are favorable for the progress of agriculture and animal farming. This is preferred for specific arable farming of sheep, cattle, and goats graze on vast pastures.

Sahel Savannah

The Sahel savannah is the most sere vegetation in Nigeria, as the main characteristic of the zone is desert vegetation. The annual rainfall in this area is poor, and the wet season lasts 3 to 4 months, hence the vegetation of the sahel zone is rare which results to the present of extremely short grasses. In the sahel vegetation zone, plants like Ngibbi, Acacia raddiana, Leptadenia, and African myrrh are the most predominant.

Conclusion

That’s it on the notable vegetation zones in Nigeria. From this write-up, it’s crystal clear that the different areas of the country has varied vegetation. This differences is as a result of the variance in the climatic conditions, temperature and the physical nature of the area. This write-up highlights the vegetation zones in the country and their characteristics.

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