Editing Tropical rainforest (section)

=== Climates ===
[[File:Chiapas Rainforest.jpg|thumb|Rainforest in [[Chiapas]], Mexico]]
[[File:Parc amazonien de Guyane, une balade à Saül.jpg|thumb|[[Guiana Amazonian Park]] in [[French Guiana]]]]
[[File:Swains Island 2.jpg|thumb|Road on Swains Island, [[American Samoa]]]]
[[File:El bosque inundado amazonico-cosmocaixa-2009 (2).JPG|thumb|Artificial tropical rainforest in Barcelona]]
Tropical rainforests are located around and near the equator, therefore having what is called an equatorial climate characterized by three major climatic parameters: temperature, rainfall, and dry season intensity.<ref name="MalhiandWright2004"/> Other parameters that affect tropical rainforests are carbon dioxide concentrations, solar radiation, and nitrogen availability. In general, climatic patterns consist of warm temperatures and high annual rainfall. However, the abundance of rainfall changes throughout the year creating distinct moist and dry seasons. Tropical forests are [[Tropical and subtropical moist broadleaf forests|classified]] by the amount of rainfall received each year, which has allowed ecologists to define differences in these forests that look so similar in structure. According to [[Holdridge life zones|Holdridge's classification]] of tropical ecosystems, true tropical rainforests have an annual rainfall greater than 2{{nbs}}m and annual temperature greater than 24 degrees Celsius, with a [[potential evapotranspiration]] ratio (PET) value of <0.25. However, most lowland [[tropical forest]]s can be classified as tropical moist or wet forests, which differ in regards to rainfall. Tropical forest ecology- dynamics, composition, and function- are sensitive to changes in climate especially changes in rainfall.<ref name="MalhiandWright2004"/>