Presentation on theme: "Woodland Ecosystem -The Tai Po Kau Nature Reserve Field Study"— Presentation transcript:
1Woodland Ecosystem -The Tai Po Kau Nature Reserve Field Study GeographyWoodland Ecosystem-The Tai Po Kau Nature Reserve Field StudyYip Ching YiChan Hao Yan
2ForewordThe Tai Po Kau Nature Reserve has a good environment with fresh air, rich diversity of plant species, trees with special characteristics of roots and leaves, etc.This powerpoint would show you more details of them! Enjoy in the nature!
3Introduction of The Tai Po Kau Nature Reserve It is a forest reserve located on the road between Tai Po and the Chinese University of Hong KongIt is Hong Kong's largest secondary forestIt holds good stands of mature plantation and native trees.
4Details Of Our Field Study Date: 16th January, 2010Weather: - temperature: 18 C - light intensity: intense - relative humidity: 55% - wind speed: lowStart now!
5This is a herb which can be used to make herbal tea. There are many plants in The Tai Po Kau Nature Reserve, most of them are useful. Now, let’s introduce these plants to you!This is a herb which can be used to make herbal tea.Its flowers are white, but now we cannot see the flowers because it is not the season they grow!
6They are Archidendron clypearia which belong to Mimosaceae .
7They are Lemmaphyllum microphyllum They are Lemmaphyllum microphyllum. They intercrescence on trunks or rocks.
8They are Rubus reflexus. There are fluff on the surface of leaves, and stings at the bottom of leaves.
9Tree speciesThis is Liquidambar formosana which originated in Hong Kong.Height: the maximum is 40m- Uses:trunk :make dried mushroomsResin :medicineWoods :building.Leaves :feed saturniid-In summer: the leaves are yellow-In winter: the leaves are red-The leaves smell sweet if we shutter them!
11Layered Structure Five layered structures in the forest: 1.Emergent layer2.Canopy layer3.Understory4.Shrub layer5.Forest floor
12Relationship between layered structure and light intensity With the higher layer, more light intensity received.
13Relationship between layered structure and light intensity Little sunlight reaches the ground layer.
14This tree belongs to emergent layer. Buttress roots are always growing sideways from trees. These give increased stability and also bring surface nutrients to their trees.Buttress roots help trees to remain standing, and overcome the challenges of high winds or soft unstable ground. In forest like Tai Po Kau’s, buttress roots are relatively small but in tropical forests they can reach 10 metres or more.
15EpiphytesEpiphytes live attached to trees, they do not live from trees in the regard, parasites are fundamentally different, they actually tap into the body of trees or other plants, seeking nutrients by taking them from the host tree or plant.
16ClimbersThey are named Climbing Entada which are climbers. They are woody plants that start at ground level. They climb along the trees to reach the canopy where they will spread from tree to tree to get as much sunlight as possible.
17There are many animals in The Tai Po Kau Nature Reserve too! They are termite, the greatest decomposers. Do you know what they were doing? They were destroying the wood!The huge hole is the destruction made by termite!
19Those white areas are Lichans. Other learningsThose white areas are Lichans.Lichens are composite organisms consisting of a symbiotic association of a fungus with a photosynthetic partner, usually either a green alga or cyanobacterium.
20Annual growth ringsThe concentric circles show how old the tree was when it died. This is because each tree ring shows one fast growing season, which in Hong Kong is the hot, wet summer. Every year the tree adds another outer woody layer.
21ReflectionDuring the trip, we found that there are so many plant species in the forest, they are special and useful, which we have never seen them before, we learned a lot! On the other hand, we were excited that we could understand more about what we had learnt from the books in the trip, such as layered structure of trees. The resources in the forest are treasures, we have to protect them, and not to destroy them!
22Thank you so much for watching! The End.Thank you so much for watching!