户外17（Outdoor 17）.docVIP

户外17（Outdoor 17） You may imagine a tropical jungle area, people must be all the way to open up a road, and the jungle crisis step by step. This is a misunderstanding. Most of the tropics have been developed, with only a small part of the jungle (rainforest), and the greatest danger comes from insects and steep terrain. Most of the rainforest covered with secondary plant, like abandoned fields growth plants. The tropical area refers to the 23.5 degrees north and 23.5 degrees south of the equator. Tropical areas include rain forests, semi evergreen seasonal forests, tropical shrubs, dry forests, and savannas. If you have the following conditions, you can increase your chances of survival in the tropics ? know how to operate the skills mentioned in this manual. Have emergency skills. ? be able to apply the principles mentioned in this manual intelligently. ? understanding the climate, topography, and the growth of plants and animals in these areas. ? know the dangers of existence and how to overcome them. Keep alive will. rainforest Distribution. Tropical rain forests are found in America, Asia and africa. Almost all rainforests are divided into two by the equator. Some tropical rainforests have mountains, plateaus, and possibly even semi desert areas. Features。 Tropical rain forests have the following characteristics: The annual rainfall is very high, up to 100 inches (254 centimeters) or higher, and the rainfall is evenly distributed over a year. There are five layers of plant space. Most trees are evergreen, and most of them are very coarse. They are 10 feet (3 meters) in diameter and lush in foliage. The trunk is usually very thin, green, very smooth and there is usually no crack. ? a large number of trailing plants and aerial plants. ? there are few herbs, grasses, and shrubs in the understorey. The leaves of plants are usually very similar in a well - growing tropical rain forest. Trees are the chief plant of tropical rain forests. The tallest trees can reach an