亚马孙河位于热带雨林,人烟稀少,无航运价值,且稀有物种多,所以亚马孙河航运价值低。
亚马孙河流域内大部分地区为热带雨林气候,上游属于高原山地气候,年雨量2000毫米以上。亚马逊河沉积下的肥沃淤泥滋养了650万平方公里的地区。
亚马孙河在有些地方河宽达6-10公里,有的地方,河水分为两股,中间形成复杂的自然河网,形成许多大小岛屿,比河面高出不到5米,在最窄的地方,如离河口600公里的奥比多斯,河流只有1.6公里宽,但有600米深,这时河水流速达到每小时6-8公里。
The Amazon River is located in the tropical rainforest, sparsely populated, has no shipping value, and has many rare species, so the Amazon River has low shipping value.
Most areas in the Amazon River basin have a tropical rainforest climate, and the upper reaches have a plateau mountain climate with an annual rainfall of more than 2,000 mm. The fertile silt deposited by the Amazon River nourishes an area of 6.5 million square kilometers.
In some places, the Amazon River is 6-10 kilometers wide. In some places, the river water is divided into two streams, forming a complex natural river network in the middle, forming many large and small islands, which are less than 5 meters higher than the river surface. In the narrowest place, such as Obidos, 600 kilometers from the estuary, the river is only 1.6 kilometers wide, but 600 meters deep. At this time, the river flow rate reaches 6-8 kilometers per hour.
The Amazon River shipping value is not high because it flows through the tropical rainforest area, where the population is sparse, there are few towns, and the economy is underdeveloped. Most of the goods to be transported are wood.
In addition, the Amazon River is the largest river in the world today, with a large amount of water, and it is also problematic for ordinary ships to operate on it. The tropical rainforest area it flows through is difficult for large ships to pass. The cost of development is also high, so it cannot play a big role.
The reason why the Amazon River shipping value is not high is that in the tropical rainforest area, the population is small and the economy is underdeveloped.