Because in the rainforest,
High temperature and rainy
The process of decomposition and weathering is rapid.
The main climate types (Zhou Shuzhen climate classification) with no obvious climate characteristics in soil layer are equatorial rainy climate and tropical maritime climate. Because it is located near the equator, the tropical rain forest is exposed to intense sunlight, with an average temperature of 26℃. There is no seasonal change, the precipitation is evenly distributed and the humidity is high during the year. The daily average temperature difference shall not exceed 6℃, and the annual average temperature difference shall not exceed 3℃. The climate is hot, with heavy rainfall (2000mm per year on average), and it often rains in the afternoon. Tropical and subtropical rain forests distributed all over the world are distributed on the vast land between the Tropic of Cancer and the south, and nearly 1/3 of the area is covered with virgin forests. Because it is located in the tropics, it is called the equatorial tropical rain forest. According to different distribution locations, there are subtropical rainforests. Tropical rainforests are all between 23.5 degrees north and south latitude, mainly located at 10 degrees north and south latitude. Nearly one third of the world's tropical rain forests are in Brazil, while Congo and Indonesia each account for about 10%. The largest tropical rain forest in the world is the Amazon rain forest. The only primitive rainforest in the world is in Malaysia. The local rainforest was formed1300,000 years ago, in short, before the ice age. The tropical rain forests in China are mainly distributed in the south of Hainan Island and Xishuangbanna, Yunnan. In the warm period of geological history, except for the areas near the poles, the land of tropical rain forest is basically distributed. Tropical forests exist only in Asia, Africa, America and Oceania. Because other continents are not in the Tropic of Cancer. Tropical rain forest is rich in land resources. Many multinational companies buy land in the tropical rain forest, cut it down and burn it as cattle pasture, and provide beef to countries with large demand for beef, such as the United States. In order to pay off their foreign debts, Brazil and other tropical rain forest countries have built large farms in tropical rain forests and planted cash crops, such as Gansu.
Palm, etc , exported to foreign countries. Historically, living in a tropical rain forest did not support human survival. The extreme dispersion of food resources in the forest is attributed to the high biological differences, and the existing food is mainly limited to machine coverage and needs a lot of energy acquisition. [1] Cultivated food and spice coffee, chocolate, banana, mango, papaya, avocado and sugarcane. All originated in the tropical rain forest and are still growing. In the1970s, the total value of coffee exports in Central America was $3 billion. Many insects caused by genetic variation to prevent destruction can also be obtained from the rainforest. Tropical forests provide 250 kinds of fruits. There are 25 1 kinds of edible fruits in the forests of New Guinea, and only 43 kinds were planted in 1985. [2] Chocolate produced in tropical rain forests comes from cocoa trees that can produce 50-60 seeds. These trees are pollinated by a small fly called midge. Medicinal and Biochemical Resources Tropical Rainforest is also called "the largest pharmacy in the world" because a large number of natural "patented drugs" can be found in the rainforest. For example, the tropical rain forest contains the basic ingredients of cocaine, drugs, hormonal contraception and sedatives. In addition, curare (a paralytic drug) and quinine (a drug for treating malaria) can be found in the tropical rain forest. Tourism at present, one of the greatest economic values of tropical rain forests is tourism. People come to the rainforest from all over the world to experience the most direct feelings. The economic benefits brought by tourism are one of the most promising ways to protect the tropical rain forest. Animal products Tropical rainforests also provide many animal products, such as honey, game meat and related trophies, such as ivory and leather. In addition to attracting people to use rainforests, rainforests also have unattractive uses, which are usually summarized as "ecosystems". Tropical rain forest plays an important role in maintaining biological logical classification, controlling sediment infiltration and flood, and increasing human scientific knowledge. This is suitable for human ecosystem, and there is no need to update or manage the forest.
Characteristics [Editor] Biological characteristics Trees are mostly strangled plants such as slab roots, multi-aerial roots or vines, which have obvious systematic stratification, tall trees and rich plant varieties; Due to long-term warm weather and high rainfall, plants can continue to grow, resulting in dense growth of trees and green growth. Editor: The main plants in the structural layer height, and other trees in the exposed layer above 365 and 438+0 m grow independently, which are relatively dispersed and supported by roots. The canopy of 265,438+0-30 m must face transpiration to form a continuous layer, which absorbs 70% sunlight and 80% rain in the rainforest. The trunk of the young tree layer of 1 1-20m is smaller. Relying on a small amount of sunlight in the forest, the shrub layer is 6- 10 m, and the ferns, clustered trees and shrubs are 0-5 m. Small plants such as moss and lichen are almost dark; Intermittence and luxuriance; Only at the edge of rivers and woodlands will it be more lush [edit]. The soil is characterized by extreme aluminization, weak acidity, latosol or oxidized soil, reddish brown or reddish yellow in color and deep soil layer. The process of soil formation is very fast.
Because in the rainforest,
High temperature and rainy
The process of decomposition and weathering is rapid.
The main climate types (Zhou Shuzhen's climate classification) are equatorial rainy climate and tropical maritime climate. Because it is located near the equator, the tropical rain forest is exposed to intense sunlight, with an average temperature of 26℃. There is no seasonal change, the precipitation is evenly distributed and the humidity is high during the year. The daily average temperature difference shall not exceed 6℃, and the annual average temperature difference shall not exceed 3℃. The climate is hot, with heavy rainfall (2000mm per year on average), and it often rains in the afternoon.
Ihouseedcity/~ hm 1203/ biosphere /trf
Tropical rain forest, as its name implies, refers to the forest in tropical areas, where the climate is hot all the year round, the rainfall is abundant, the seasonal phase is extremely inconspicuous, and the biological community succession speed is extremely fast. Trees with biological characteristics such as multi-roots, multi-aerial rooted plants or vines strangle plants, with obvious systematic stratification, tall trees and rich plant varieties; Due to long-term warm weather and high rainfall, plants can continue to grow, resulting in dense growth of trees and green growth. The main plants in the structural layer height and other trees in the exposed layer above 365 and 438+0m grow independently, relatively dispersed and supported by roots. The canopy of 265,438+0-30m needs to face transpiration to grow horizontally, forming a continuous layer, absorbing 70% of sunlight and 80% of rainwater in the rainforest. The trunk of the young tree layer of 65,438+065,438+0-20m is relatively young, and the crown is oval. Relying on a small amount of sunlight in the forest, the shrub layer is 6- 10 m, and the ferns, clustered trees and shrubs are 0-5 m. Small plants such as moss and lichen are almost dark; Intermittence and luxuriance; Only at the edge of rivers and woodlands, the lush soil is extremely aluminized, weakly acidic to acidic, latosol or oxidized soil, reddish brown or reddish yellow in color and deep in soil layer. The process of soil formation is very fast.
Because in the rainforest,
High temperature and rainy
The process of decomposition and weathering is rapid.
The main climate types (Zhou Shuzhen climate classification) with no obvious climate characteristics in soil layer are equatorial rainy climate and tropical maritime climate. Because it is located near the equator, the tropical rain forest is exposed to intense sunlight, with an average temperature of 26℃. There is no seasonal change, the precipitation is evenly distributed and the humidity is high during the year. The daily average temperature difference shall not exceed 6℃, and the annual average temperature difference shall not exceed 3℃. The climate is hot, with heavy rainfall (2000mm per year on average), and it often rains in the afternoon. Tropical and subtropical rain forests distributed all over the world are distributed on the vast land between the Tropic of Cancer and the south, and nearly 1/3 of the area is covered with virgin forests. Because it is located in the tropics, it is called the equatorial tropical rain forest. According to different distribution locations, there are subtropical rainforests. Tropical rainforests are all between 23.5 degrees north and south latitude, mainly located at 10 degrees north and south latitude. Nearly one third of the world's tropical rain forests are in Brazil, while Congo and Indonesia each account for about 10%. The largest tropical rain forest in the world is the Amazon rain forest. The only primitive rainforest in the world is in Malaysia. The local rainforest was formed1300,000 years ago, in short, before the ice age. The tropical rain forests in China are mainly distributed in the south of Hainan Island and Xishuangbanna, Yunnan. In the warm period of geological history, except for the areas near the poles, the land of tropical rain forest is basically distributed. Tropical forests exist only in Asia, Africa, America and Oceania. Because other continents are not in the Tropic of Cancer. Tropical rain forest is rich in land resources. Many multinational companies buy land in the tropical rain forest, cut it down and burn it as cattle pasture, and provide beef to countries with large demand for beef, such as the United States. In order to pay off their foreign debts, Brazil and other tropical rain forest countries have built large farms in tropical rain forests and planted cash crops, such as Gansu.
Palm, etc , exported to foreign countries. Historically, living in a tropical rain forest did not support human survival. The extreme dispersion of food resources in the forest is attributed to the high biological differences, and the existing food is mainly limited to machine coverage and needs a lot of energy acquisition. [1] Cultivated food and spice coffee, chocolate, banana, mango, papaya, avocado and sugarcane. All originated in the tropical rain forest and are still growing. In the1970s, the total value of coffee exports in Central America was $3 billion. Many insects caused by genetic variation to prevent destruction can also be obtained from the rainforest. Tropical forests provide 250 kinds of fruits. There are 25 1 kinds of edible fruits in the forests of New Guinea, and only 43 kinds were planted in 1985. [2] Chocolate produced in tropical rain forests comes from cocoa trees that can produce 50-60 seeds. These trees are pollinated by a small fly called midge. Medicinal and Biochemical Resources Tropical Rainforest is also called "the largest pharmacy in the world" because a large number of natural "patented drugs" can be found in the rainforest. For example, the tropical rain forest contains the basic ingredients of cocaine, drugs, hormonal contraception and sedatives. In addition, curare (a paralytic drug) and quinine (a drug for treating malaria) can be found in the tropical rain forest. Tourism at present, one of the greatest economic values of tropical rain forests is tourism. People come to the rainforest from all over the world to experience the most direct feelings. The economic benefits brought by tourism are one of the most promising ways to protect the tropical rain forest. Animal products Tropical rainforests also provide many animal products, such as honey, game meat and related trophies, such as ivory and leather. In addition to attracting people to use rainforests, rainforests also have unattractive uses, which are usually summarized as "ecosystems". Tropical rain forest plays an important role in maintaining biological logical classification, controlling sediment infiltration and flood, and increasing human scientific knowledge. This is suitable for human ecosystem, and there is no need to update or manage the forest.
The soil is characterized by extremely aluminized, weakly acidic to acidic, latosol or oxidized soil, reddish brown or reddish yellow in color, and deep soil layer. The process of soil formation is very fast.
Because in the rainforest,
High temperature and rainy
The process of decomposition and weathering is rapid.
The main climate types (Zhou Shuzhen climate classification) with no obvious climate characteristics in soil layer are equatorial rainy climate and tropical maritime climate. Because it is located near the equator, the tropical rain forest is exposed to intense sunlight, with an average temperature of 26℃. There is no seasonal change, the precipitation is evenly distributed and the humidity is high during the year. The daily average temperature difference shall not exceed 6℃, and the annual average temperature difference shall not exceed 3℃. The climate is hot, with heavy rainfall (2000mm per year on average), and it often rains in the afternoon. Tropical and subtropical rain forests distributed all over the world are distributed on the vast land between the Tropic of Cancer and the south, and nearly 1/3 of the area is covered with virgin forests. Because it is located in the tropics, it is called the equatorial tropical rain forest. According to different distribution locations, there are subtropical rainforests. Tropical rainforests are all between 23.5 degrees north and south latitude, mainly located at 10 degrees north and south latitude. Nearly one third of the world's tropical rain forests are in Brazil, while Congo and Indonesia each account for about 10%. The largest tropical rain forest in the world is the Amazon rain forest. The only primitive rainforest in the world is in Malaysia. The local rainforest was formed1300,000 years ago, in short, before the ice age. The tropical rain forests in China are mainly distributed in the south of Hainan Island and Xishuangbanna, Yunnan. In the warm period of geological history, except for the areas near the poles, the land of tropical rain forest is basically distributed. Tropical forests exist only in Asia, Africa, America and Oceania. Because other continents are not in the Tropic of Cancer. Tropical forest resources of Brazilian Amazon rain forest (1990) unit: total rain forest wet broad-leaved forest mountain forest dry broad-leaved forest extremely dry desert global1756299 713790591779201417855. 8086 Africa 527586 86411348 35256 92527 58660 3385 Xisha Hale 407680144370130291. 76127801978418513 797 west Africa 55607 3230 48523 468 2583185130, non-204/kloc-. 00072 15 12 86 0 tropical south Africa145868 0 57267 7339 53400 25291island Africa15782 4507 3777 4596 22/kloc-0. 8+048027 41797 4122 4069137 2901South Asia 639319850 9155/kloc. 23719271921078613499043 Nanyang Islands1354261kloc-0/43554779/kloc-0. 5438+0 0 184 USA 91815 450162 297929119669 44944104565438. 38+05412267 362961590 7591424 Caribbean 4715314281299/kloc. Many multinational companies buy land in the tropical rain forest, cut it down and burn it as cattle pasture, and provide beef to countries with large demand for beef, such as the United States. In order to pay off their foreign debts, Brazil and other tropical rain forest countries have built large farms in tropical rain forests and planted cash crops, such as Gansu.
Palm, etc , exported to foreign countries. Historically, living in a tropical rain forest did not support human survival. The extreme dispersion of food resources in the forest is attributed to the high biological differences, and the existing food is mainly limited to machine coverage and needs a lot of energy acquisition. [1] Cultivated food and spice coffee, chocolate, banana, mango, papaya, avocado and sugarcane. All originated in the tropical rain forest and are still growing. In the1970s, the total value of coffee exports in Central America was $3 billion. Many insects caused by genetic variation to prevent destruction can also be obtained from the rainforest. Tropical forests provide 250 kinds of fruits. There are 25 1 kinds of edible fruits in the forests of New Guinea, and only 43 kinds were planted in 1985. [2] Chocolate produced in tropical rain forests comes from cocoa trees that can produce 50-60 seeds. These trees are pollinated by a small fly called midge. Medicinal and Biochemical Resources Tropical Rainforest is also called "the largest pharmacy in the world" because a large number of natural "patented drugs" can be found in the rainforest. For example, the tropical rain forest contains the basic ingredients of cocaine, drugs, hormonal contraception and sedatives. In addition, curare (a paralytic drug) and quinine (a drug for treating malaria) can be found in the tropical rain forest. Tourism at present, one of the greatest economic values of tropical rain forests is tourism. People come to the rainforest from all over the world to experience the most direct feelings. The economic benefits brought by tourism are one of the most promising ways to protect the tropical rain forest. Animal products Tropical rainforests also provide many animal products, such as honey, game meat and related trophies, such as ivory and leather.
Reference: zh. *** /w/index？ Title =% E7% 83% AD% E5% B8% A6% E9% 9b% A8% E6% 97&9e; Variant =zh-
Ihouseedcity/~ hm 1203/ biosphere /trf
The old man has worked hard for us all his life, and every child wants to create a healthy and happy old age for his par