Rainforest - ENVISCIE

Rainforest

preserves life-giving species & protect millions of living creatures; regulate the flow of water on earth.

Forest

crowns of trees touch from a single canopy.

Woodland

trees grow apart so that the canopy is open.

Dipterocarp

most common and most imortant of all types of forest but also the most exploited forest in the Philippines; sanctuary of the world's rarest plants, animals, and home of our tribal ancestors; where timber & other forest products come from.

Pine

Mindoro and Benguet Pine

Molave

falls under dipterocarp; found in Central Luzon.

Mangrove

forests found in the tidal flats of the coastal areas. Good source of charcoal, firewoods, and tannin.

Mossy

found throughout the higher parts of the mountains & inhabited by many of the endemic wildlife of the Philippines.

Deforestation

large scale removal of forests; permanent destruction of forests and woodlands.

Reforestation

planting young trees or seeds on lands where trees have been cut or destroyed

Natural Reseeding

after clearcutting, few mature, wild-firm tulls may be left intact as a seed source within the otherwise logged off-site. Seeds are scattered by wind, birds, and runoff water. The seeds are eventually dispersed throughout the denuded area.

Seedling by Foresters or Aerial Seeding

using planes flying slowly just above the treetops is employed in rugged terrains. In a logged-off site that is flat, power-driven seeding machines are used. These machines plant up to 3.3 hectares per day, and simultaneously fertilize the soil and apply herbicide to prevent weed encroachment.

Planting

actual planting of young trees from plantation stock is a better and more successful means of reforestation. On flat lands, three workers, a tractor, and a planting machine can set 1,000 to 2,000 trees per hour.

Tropical Rainforest

was estimated to be covering 25 million square kilometers, or 16% of the land surface of the earth. Now, it covers around 10 million square kilometers. Half of the loss has been attributed to agricultural conversions, developments of pasture land, livestock, and ranches.

twenty-five million square kilometers or 16% of the land surface of the earth

the tropical rainforest was estimated to be covering

ten million square kilometers

today, rainforest cover around ___. Half of the loss has been attributed to agricultural conversions, developments of pasteur land, livestock and ranches.

six million

currently, the philippines has only ___ hectares of forested areas remaining as forest-based resources.

• Poverty

• Overpopulation

• World’s growing demand for wood products

• Poor government policies

• global increase in the demand for forest products

• governments opening of the forest frontiers

Causes of Destruction of Rainforests

• Provide us with food and medicine

• Source of lumber, furniture and paper

• Stop erosion

• Refresh air

• Control stream and river flows

Importance of Forest

• for commercial logging and burn farming (kaingin system)

• for mining operation

• cattle ranching

• for development of housing, industries and roads

• conversion to agricultural lands

• space for recreational purposes

• reconstruction of dams as a source of electric power

Causes of Deforestation

• Forest Fires

• Volcanic Eruption

• Typhoon

Natural Causes of Deforestation

• soil erosion

• flooding

• water/food shortage

• denuded upland

• extinction of thousands of species

• greenhouse effect

Effects of Deforestation in the Philippines