A Very Good Presentation on Eco-System.pptx

Nice Material for the students

1. Environmental Education Compulsory Course EDI-11805 1

2. Lecture 4 “ types of Ecosystems and their importance”

3. Types of Ecosystems

4. Man Made Ecosystem Cropland Aquarium  They are Artificial ecosystems  are created to mimic the natural ecosystems . Zoo ZOO Gardens

5. Natural Ecosystems Terrestrial Ecosystem T errestrial ecosystems  are those that are found only on land . There are 6 types of terrestrial ecosystems: Tundra Taiga Temperate deciduous forest Tropical rain forest Grassland Desert

6. Tundra Tundra  is a type of  ecosystem  where the tree growth is hindered by low temperatures and short growing seasons. 

7. Taiga Taiga   also known as   snow forest , is a biome characterized by  coniferous forests (needle like leaves) . Ever Green Trees

8. Temperate Deciduous Forest Temperate deciduous forests  or  temperate broad-leaf forests  are dominated by trees that lose their leaves each year .

9. Tropical Rain Forest Tropical rainforests  occur in areas of  tropical rainforest climate  in which there is no  dry season – all months have  precipitation

10. Desert A  desert  is a barren area of  landscape  where very little  precipitation  occurs and consequently living conditions are hostile for plant and animal life

11. Grassland Grasslands  are areas where the   vegetation  is dominated by  grass.

12. Natural Ecosystem Aquatic Ecosystem An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems are : Marine Ecosystems Freshwater Ecosystems

13. Marine Ecosystem Marine ecosystems cover approximately 71% of the  Earth's surface  and contain approximately 97% of the planet's water. They generate 32% of the world's net  primary production . They are distinguished from freshwater ecosystems by the presence of dissolved  compounds , especially  salts , in the water.

14. Freshwater Ecosystem Freshwater ecosystems cover 0.78% of the Earth's surface. They generate nearly 3% of its net primary production .  Freshwater ecosystems contain 41% of the world's known fish species .

15. Benefits of Ecosystem

16. Benefits of Ecosystem Supportive Ecosystems provide a supporting role for all its members. In this role, living members serve as food for others, and their produce and residue serve as nutrients to soils and gases to the atmosphere. This makes soil nitrogen cycle, carbon and oxygen cycle and water cycle possible and also for living things to continue procreation.

17. Benefits of Ecosystem B. Provision The action of providing or supplying something for use. Ecosystems are also the source of all foods , store of all energy, fiber, genetic resources, medicines, fresh water and minerals. All natural resources that humans depend on, has its source from ecosystems.

18. Natural Resources

19. Benefits of Ecosystem C. Regulation The function of a healthy ecosystem ensures that there is balance and regulation in the climate, regulation in fresh water, stops soil erosion and clean atmosphere. They function to regulate animals and plant diseases and ensure that biodiversity is preserved.