Primary Succession
is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. In other words, it is the gradual growth of an ecosystem over a longer period.
is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. In other words, it is the gradual growth of an ecosystem over a longer period.
Secondary Succession
Farmers cut down trees to plant and grow their crops after a while the soil becomes infertile
after the farmer leaves secondary succession sets in and fertilizes the soil causing small plants and trees to grow in the
rainforest. After hundreds of years everything has grown back.
Farmers cut down trees to plant and grow their crops after a while the soil becomes infertile
after the farmer leaves secondary succession sets in and fertilizes the soil causing small plants and trees to grow in the
rainforest. After hundreds of years everything has grown back.
Bio-geochemical cycle
Nutrient budget.
Nutrient budget.
In the picture above it shows that nutrients mainly come from living plant biomass. Many organisms are involved in the decomposition
process such as termites, bacteria, fungi, and various invertebrates. Fungi gain carbon nourishment from the tree and they benefit the tree by providing a vastly expanded nutrient gathering network in the soils.
process such as termites, bacteria, fungi, and various invertebrates. Fungi gain carbon nourishment from the tree and they benefit the tree by providing a vastly expanded nutrient gathering network in the soils.
Human impact on the Tropical Rainforest
When the plants are removed, erosion of the soil happens. Pollution also happens, the ground, air,
and water become polluted from mining. Extinction the world is losing 137 species
When the plants are removed, erosion of the soil happens. Pollution also happens, the ground, air,
and water become polluted from mining. Extinction the world is losing 137 species
Links
http://www.globalchange.umich.edu/globalchange1/current/lectures/kling/rainforest/rainforest.html
http://www.blueplanetbiomes.org/rainforest.htm
http://www.cotf.edu/ete/modules/msese/earthsysflr/rforest.html
http://www.enchantedlearning.com/subjects/rainforest/animals/Rfbiomeanimals.shtml
http://www.skyenimals.com/browse_habitat.cgi?habitat=tropical_forest
http://mbgnet.net/sets/rforest/plants/index.htm
http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/plants.html
http://www.blueplanetbiomes.org/rainforest.htm
http://www.cotf.edu/ete/modules/msese/earthsysflr/rforest.html
http://www.enchantedlearning.com/subjects/rainforest/animals/Rfbiomeanimals.shtml
http://www.skyenimals.com/browse_habitat.cgi?habitat=tropical_forest
http://mbgnet.net/sets/rforest/plants/index.htm
http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/plants.html