UNIT 7: WORLD LANDSCAPES

UNIT 7: WORLD LANDSCAPES

VIDEOS ABOUT BIOMES OF HE WORLD

Here you have some videos about the different types of biomes that exist in our planet. Enjoy them!

VIDEOS ABOUT THE TUNDRA BIOMES

VIDEOS ABOUT THE TAIGA BIOME

Here you have some videos about the coniferous forest biome or taiga. I hope you enjoy wih them.

The climate in the Taiga Biome is very drastic throughout the year. During the winter many arctic circle winds blow around in the Taiga causing for colder weather. In addition due to the earths tilt the Taiga Biome receives less solar radiation causing a colder climate. During the Winter it the temperature tends to range from -65 to 30 degrees F. During the Summer the temperature ranges around 40-70 degrees F. It tends to be very chilly all year.

VIDEO ABOUT GRASSLAND BIOME

VIDEOS ABOUT DECIDUOUS FOREST BIOME

VIDEOS ABOUT  TROPICAL RAINFOREST BIOME

A tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator (in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn). This ecosystem experiences high average temperatures and a significant amount of rainfall. Rainforests can be found in Asia, Australia, Africa, South America, Central America, Mexico and on many of the Pacific, Caribbean, and Indian Ocean islands. Within the World Wildlife Fund's biome classification, tropical rainforests are thought to be a type of tropical wet forest (or tropical moist broadleaf forest) and may also be referred to as lowland equatorial evergreen rainforest

 VIDEO ABOUT THE SAVANNAH BIOME


elephant's and lion's savage season on the savanna or savannah is a grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses........

VIDEOS ABOUT HOT DESERT BIOME


Here, you have some videos about hot desert biomes. I hope you enjoy them.

Deserts are mainly found around the tropic of Cancer and tropic of Capricorn in Northern and Southern Hemispheres respectively. The common definition of desert is a region that receives less than 25cm of rain a year on average.
When people think of deserts, the following image comes to their minds : hot and arid land, vast expanses of sand, soil of reddish brown color, a sky of brilliant blue, no or very few plants, cacti, spiny leaves and camel is the only animal that they can think of.

The truth is not like that. It is not very common to find sand in a desert, but small rocks, pebbles and loose gravel on the surface layer instead. Only 15% of the world' s desert surface is pure sand. (Parts of the Sahara and Arabia desert) Desert occupies about one fifth to one third of the earth' s surface. The rainfall pattern is not a seasonal one. Instead, rain usually falls in the form of sudden, violent thunderstorms. There may be several storms in a year or none for several years. The " average rainfall each year" is not calculated based on one year' s rainfall, but on the total rainfall in a long period of time.

VIDEO ABOUT MOUNTAIN BIOME


A mountain is a large landform that stretches above the surrounding land in a limited area usually in the form of a peak. A mountain is generally steeper than a hill. The adjective montane is used to describe mountainous areas and things associated with them. Mountains are formed through tectonic forces or volcanism. These forces can locally raise the surface of the earth by over 10,000 feet (3,000 m). Mountains erode slowly through the action of rivers, weather conditions, and glaciers. A few mountains are isolated summits, but most occur in huge mountain ranges.

VIDEOS  ABOUT MANGROVES BIOME

Mangroves are among the oldest and most productive wetland forests on our planet. Found in the intertidal zone, they are uniquely adapted to survive highly saline and anoxic conditions. They are ideal habitats for many terrestrial and marine species, carbon sinks and natural barriers against storm surges and coastal erosion. Mangroves provide invaluable services but have been declining worldwide as a result of anthropogenic and other threats. 

Guardians of our Coast showcases the fascinating web of life that surrounds these tidal forests. The movie highlights the unique collaboration between governments, regional and local institutions, NGOs and local communities, in efforts to save these vulnerable ecosystems and restore them to their former glory. 

There aren't too many happy stories when it comes to restoring damaged ecosystems, but people in southern Thailand's Trang Province tell one of them, thanks to an innovative grassroots organization called Yad Fon. Founded in 1984, Yad Fon set out to rehabilitate the mangrove ecosystems that had sustained families in the area for thousands of years. How? By helping villagers manage their own natural resources.

The video was done by the American Museum of Natural History (AMNH) and published in their Science Bulletins (http://sciencebulletings.amnh.org). It contains an interview with "Alfredo Quarto", MAP's Executive Director and Founder, regarding the negative impacts of shrimp aquaculture in mangrove coastal ecosystem.

VIDEO ABOUT WETLANDS BIOME

A patch of land that develops pools of water after a rain storm would not be considered a "wetland," even though the land is wet. Wetlands have unique characteristics: they are generally distinguished from other water bodies or landforms based on their water level and on the types of plants that thrive within them. Specifically, wetlands are characterized as having a water table that stands at or near the land surface for a long enough period each year to support aquatic plants.

A more concise definition is a community composed of hydric soil and hydrophytes.

Wetlands have also been described as ecotones, providing a transition between dry land and water bodies. Mitsch and Gosselink write that wetlands exist "...at the interface between truly terrestrial ecosystems and aquatic systems, making them inherently different from each other, yet highly dependent on both."

In environmental decision-making, there are subsets of definitions that are agreed upon to make regulatory and policy decisions,

VIDEOS ABOUT COASTAL SAND DUNES BIOME

In the field with Simon Haslett, Professor of Physical Geography at the University of Wales and author of Coastal Systems (2008, Routledge). Subtitles have been added to this video, which viewers might wish to use due to wind noise at the beach.
Topics: Dune formation, sand supply, accommodation space, wind, suspended transport, saltation, surface creep, strandlines, shadow dunes, embryo dunes, foredune, progradation, hind dunes, incised pathways, undercutting, dune vegetation, primary dunes, secondary dunes.

A CLASS ABOUT THE LANDSCAPES AND THE CLIMATE ZONES  THROUGH A POWER POINT

This is a traditional class explaining the Climate Zones through a power point. The teacher is in an image in the corner and he is explaining the content helped by the visuals and texts of the power point.

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