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Oxisols are a soil order in USDA soil taxonomy, best known for their occurrence in tropical rain forest within 25 degrees north and south of the Equator. In the World Reference Base for Soil Resources (WRB), [1] they belong mainly to the ferralsols, but some are plinthosols or nitisols. Some oxisols have been previously classified as laterite ...
The structure of a tropical rainforest is stratified into layers, each hosting unique ecosystems. These include the emergent layer with towering trees, the densely populated canopy layer, the understory layer rich in wildlife, and the forest floor, which is sparse due to low light penetration. The soil is characteristically nutrient-poor and ...
Some tropical areas may receive abundant rain the whole year round, but others have long dry seasons which last several months and may vary in length and intensity with geographic location. These seasonal droughts have a great impact on the vegetation, such as in the Madagascar spiny forests. [1] Rainforest vegetation is categorized by five layers.
Two of the largest palm oil plantations in Peru are located on the west side of the Ucayali River, which flows from the Andes to the Amazon. From above, the surrounding landscape looks like ...
Many tropical food plants are propagated by cuttings.Seeds are necessary for plant embryos to survive the winter and other harsh conditions such as drought.However, where the weather is normally conducive to growth year-round, plants reproducing plants through means other than seeds is often advantageous.
Tropical rainforest near Tropical North Queensland. At around 1200 square kilometres the Wet Tropics Rainforest is a part of Australia 's largest contiguous area of rainforest. Contains 30% of frog , marsupial and reptile species in Australia, and 65% of Australia's bat and butterfly species. 20% of bird species in the country can be found in ...
Most of the interior of the Amazon basin is covered by rainforest. [6] The dense tropical Amazon rainforest is the largest tropical rainforest in the world. [2] It covers between 5,500,000 and 6,200,000 square kilometres (2,100,000 and 2,400,000 sq mi) of the 6,700,000 to 6,900,000 square kilometres (2,600,000 to 2,700,000 sq mi) Amazon biome.
The Neotropic includes more tropical rainforest (tropical and subtropical moist broadleaf forests) than any other realm, extending from southern Mexico through Central America and northern South America to southern Brazil, including the vast Amazon rainforest. These rainforest ecoregions are one of the most important reserves of biodiversity on ...