The Niger Delta is located at the Atlantic Coast of the Southern part of Nigeria. It is the outlet of River Niger and Benue to the Ocean through rivers, creeks and estuaries. It is the second largest delta in the world with coastline spanning about 450 kilometers terminating at the Imo river entrance (Uyique, Etiosa 2007). It is described as the largest wetland in Africa and among the three largest in the world. The region spans over 20,000 square kilometers hoisting about 25% of the Nigeria population. About 2370 square kilometers of the Niger Delta consist of Rivers, creeks and estuaries while stagnant swamp covers about 8,600 square kilometers and has the largest mangrove swamp in Africa. The mangrove swamp extends about 1900 square kilometers. The region falls within the tropical rain forest zone (Joe-Alagoa, E., 2002)
TABLE OF CONTENTS
1.0 Introduction
2.0 General Analysis
3.0 Method of Data Collection
4.0 Climate and Environment
4.1 Weather and Climate
4.1.1 Rainfall
4.1.2 Temperature
4.1.3 Humidity
4.1.4 Thunderstorm Days
4.2 Environmental Effect
4.2.1 Industrial Environment
4.2.2 Gas Flaring
4.2.3 Marine Environment
4.2.4 Flooding
5.0 Discussion
6.0 Recommendations
7.0 Conclusion
8.0 References
CLIMATIC AND ENVIRONMENTAL EFFECT IN THE NIGER DELTA
1.0 INTRODUCTION
The Niger Delta is located at the Atlantic Coast of the Southern part of Nigeria. It is the outlet of River Niger and Benue to the Ocean through rivers, creeks and estuaries. It is the second largest delta in the world with coastline spanning about 450 kilometers terminating at the Imo river entrance (Uyique, Etiosa 2007). It is described as the largest wetland in Africa and among the three largest in the world. The region spans over 20,000 square kilometers hoisting about 25% of the Nigeria population. About 2370 square kilometers of the Niger Delta consist of Rivers, creeks and estuaries while stagnant swamp covers about 8,600 square kilometers and has the largest mangrove swamp in Africa. The mangrove swamp extends about 1900 square kilometers. The region falls within the tropical rain forest zone (Joe-Alagoa, E., 2002).
The Niger Delta formerly occupied the southern part of the defunct Eastern Region of Nigeria. Presently, they have been group under the umbrella of the south-south geopolitical zone. These areas are rich in oil and gas and account for about 95 percent of Nigerian foreign earnings. Oil was first discovered in 1958 in this area, since then oil has dominated the Nigerian economy (Uyigue 2009, okecha 2003). The Niger Delta environment has degraded due to oil exploration and exploitation. This slow poisoning of the waters in the area and the destruction of vegetation and agricultural lands by oil spillage has devastating effect on the land.
Since the operation of the oil industry in Nigeria till date there has been no concerned or effective effort on the part of the government, let alone the oil operators to control environmental problems associated with the oil industry (Wikipedia 2010).
The environmental devastation associated with the industry and the lack of distribution of oil wealth or rather the neglect of the affected people have been the source and the key aggravating factors of numerous environmental movements and inter – ethnic conflicts in the region, including the recent guerilla activity by the movement for the Emancipation of the Niger Delta (MEND).
After the establishment of several commissions or agencies, the Niger Delta Development Commission was established in 2000 with an aim to suppress the environmental and ecological impact petroleum has had in the region. By this move three other states (Imo, Abia and Ondo) were added to make up the present nine states of the Niger Delta. Its administration has always been political and the level of corruption in the country has made no impact on the people. Before the exploration of oil in this area it was regarded as the richest delta in the world.
The reasons for the study is to know
(i) The climatic effect in the area
(ii) The Environmental effect as a result of oil spillage and gas flaring
(iii) Flooding
2.0 GENERAL ANALYSIS:
The Niger Delta environment can be divided into four ecological zones. These are the coastal inland zone, the mangrove swamp forest zone, the fresh water swamp zone and the lowland rain forest zone (Joe-Alagoa 2002). These zones will enable the analysis of different environmental factors especially the influence of the ocean on the land mass.
The Coastal Inland Zone: These are areas directly exposed to the influence of the sea breeze. These area are few kilometers from the ocean, therefore the marine effect is much on the land. The soil is of sandy beach at the shores and swampy with Raphia hookeri forest inwards. The salinity of the ground water is high thereby reduced soil resistivity but high level of corrosion.
The mangrove swamp forest: These are the inland areas with several rivers and creeks with tall mangroves (Rhizophora Racemesa). They are mostly seen at the banks of rivers and creeks on soft mud. Some of the soft mud are dark in colour with usual smell of Hydrogen sulphide. The inland and some areas are of peaty clay (Chikoko) having stunted short mangroves.
The influence of the ocean is much, therefore the salt spray due to strong wind from the ocean affect these lands. These areas extend to the fresh water swamp with mixture of other vegetations. The salinity of these areas varies from the sea coast to the inland sometimes the salinity varies according to the flow of tide and the seasons. The area is a low swamp but could be accompanied by some higher soil formations with soil formation of sand and clay. The ground water level is below 2 meters and always has small but varying soil resistivity.
The Fresh Water Swamps: These areas start from fresh water / salt water transition zone and moved inland to the brackish water. There is also a decrease of salinity level where the mangroves are sparing seen at the bank and are replaced by different vegetation while some areas are colonized by Raphia vinifera and nipa palms.
The soil is clayey silt. The soil pH in such an area is moderate (5.5 – 6.0) which become more acidic if allowed to dry.
The Low-Land Rain Forest Zone: The soil of this area is clay with varying proportion of sand composition in different areas. Its land mass is not hilly and is well drained, few areas pond after the rain and dry up after some days of sunshine. The vegetation is thick and it supports agriculture. The influence of the ocean is minimal therefore the salt content is very low with higher pH (4.5 – 5.0). The ground moisture table is low about 3 meters (Afa and Anaele 2010).
3.0 METHOD OF DATA COLLECTION
The climatic data were collected from the meteorological station from Federal Ministry of aviation. Others were collected from some study group like the CREDA, and from the book, lands and people of Rivers State. Personal observation were made and recorded for the past two years.
4.0 CLIMATE AND ENVIRONMENT:
4.1 WEATHER AND CLIMATE
Frequently asked questions
What is the "Climatic and Environmental Effect in the Niger Delta" document about?
The document provides a comprehensive language preview focusing on climatic and environmental effects in the Niger Delta region of Nigeria. It includes a table of contents, objectives, key themes, chapter summaries, and keywords. The analysis covers various aspects of the Niger Delta's climate and environment, including weather patterns, environmental effects of industrial activities (specifically oil exploration and gas flaring), and the impact of flooding.
What is included in the Table of Contents?
The table of contents outlines the following sections: Introduction, General Analysis, Method of Data Collection, Climate and Environment (including Weather and Climate, Rainfall, Temperature, Humidity, Thunderstorm Days, Environmental Effect, Industrial Environment, Gas Flaring, Marine Environment, and Flooding), Discussion, Recommendations, Conclusion, and References.
What are the objectives of the study mentioned in the introduction?
The study aims to understand the climatic effects in the Niger Delta area, the environmental impact of oil spillage and gas flaring, and the effects of flooding.
What are the four ecological zones the Niger Delta environment is divided into for analysis?
The Niger Delta environment is divided into the coastal inland zone, the mangrove swamp forest zone, the fresh water swamp zone, and the lowland rain forest zone.
What information is provided about the coastal inland zone?
The coastal inland zone is characterized by its proximity to the sea, sandy beaches, swampy areas with Raphia hookeri forests, high salinity of groundwater, reduced soil resistivity, and high corrosion levels.
What are the key features of the mangrove swamp forest zone?
The mangrove swamp forest zone contains rivers and creeks with tall mangroves (Rhizophora Racemesa) along the banks, soft mud, and occasional dark-colored mud with the smell of Hydrogen sulfide. The salinity varies according to the tide and seasons.
How is the fresh water swamp zone described?
The fresh water swamp zone represents the transition from saltwater to freshwater, with decreasing salinity levels. Mangroves are less prevalent, and the vegetation shifts towards Raphia vinifera and nipa palms. The soil is clayey silt with a moderate pH (5.5 – 6.0).
What are the characteristics of the lowland rain forest zone?
The lowland rain forest zone has clay soil with varying proportions of sand. It is generally well-drained with thick vegetation that supports agriculture. The influence of the ocean is minimal, resulting in low salt content and a higher pH (4.5 – 5.0).
How was the data collected for this study?
The climatic data were collected from the meteorological station from Federal Ministry of aviation. Others were collected from some study group like the CREDA, and from the book, lands and people of Rivers State. Personal observation were made and recorded for the past two years.
What factors influence the weather and climate in Nigeria, according to the document?
Nigerian weather and climate are influenced by two major surface air masses: the warm moist South-westerly air mass and the warm dry north-easterly air mass. These air masses are a result of the interplay between the north-east trade wind from the Sahara and the South-West from the South Atlantic.
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- John Tarilanyo Afa (Author), 2011, Climatic and Environmental Effect in the Niger Delta, Munich, GRIN Verlag, https://www.grin.com/document/213035
