What is the difference between a river and a lake?

Lakes are generally large areas of water, and there is also living water or non-circulation, while rivers are generally long in shape and circulating.

Both lakes and rivers are naturally formed.

Lakes, which are generally dead, also have flowing seasonal lakes; Rivers, such as the Yellow River and the Yangtze River (also seasonal), flow spontaneously into the mouth of the sea.

River ......It is defined as "a natural body of water that flows frequently or intermittently along a reclining depression under the action of gravity". It can usually be divided into five parts: the source, the upstream, the middle reach, the downstream and the estuary. The Yellow River, second only to the Yangtze River, has a basin area of 750,000 square kilometers and an average annual flow of 48.2 billion cubic meters.

It can be seen that "river" does not refer specifically to small rivers or small rivers.

Lake ......A body of water formed by accumulation of water in a relatively wide depression on the surface of the land. According to the genesis, it can be divided into tectonic lakes, crater lakes, dammed lakes, glacial lakes, karst lakes, lagoons, oxbow lakes, wind erosion lakes and artificial lakes. According to the amount of salinity, it can be divided into freshwater lakes, saltwater lakes, salt lakes, etc.

According to the relationship between lakes and rivers, they can be divided into inland lakes and outflow lakes. Such as Taihu Lake, Poyang Lake, Xingkai Lake and Qinghai Lake.

The differences between rivers and rivers are as follows:1. According to the geographical region, most of the rivers in the north are called rivers, such as the Yellow River and the Huai River, while the south is called rivers, such as the Yangtze River, Jinsha River, etc.

2. The rivers that flow into the inland sea or lakes are called rivers, while those that flow into the ocean are called rivers.

3. According to the surplus and dryness of the river, generally speaking, the surplus and dryness are not obvious, and the river is full of flowing water all year round, and the river is full of surplus and dry.

There is a saying that it is a river that flows into the inland sea, and it is a river that flows to the open sea or the ocean, in fact, this statement is also far-fetched, the name of the river has existed since ancient times, and at that time there was no distinction between the inland sea and the outer sea in the geographical division. Another saying is "South River and North River", and on this basis, it is derived from the saying that the large water flow is called "river", and the water flow is small is called "river".

River, this refers specifically to the Yellow River. Later, it is a common name for rivers.

Shape sound. From the water, Coco. Original meaning: Yellow River.

Jiang, this refers specifically to the Yangtze River. Later, it refers to the general term of rivers in general.

Shape sound. From the water, the sound of the work. Original meaning: the special name of the Yangtze River).

The rivers in the south, northeast and southwest are mostly called "rivers", such as: Pearl River, Yuan River, Heilongjiang River, and Brahmaputra River.

The rivers in North China and Northwest China are mostly called "rivers", such as: Wei River, Zhang River, and Tarim River. Lake ......hú

A large body of water that accumulates on land: Moor. Marsh. Beach. Pool. Light mountain color.

Rivers, lakes and rivers are not only different in size, but also in different definitions, different water sources, and different ways of formation.

1. Different definitions.

1. River: In ancient times, river was the special name of the Yellow River, and later evolved into the name of the waterway in North China.

2. Lake: Lake refers to the enclosed water area with beard-like aquatic plants on the surface of the water.

3. Jiang: In ancient times, Jiang was the special name of the Yangtze River, and later evolved into the name of the waterway in southern China.

Second, the water source is different.

1. River: The water in a river is usually freshwater, which may originate from glaciers, higher terrain, and flow to lower terrain seas, oceans, lakes, underground crevices, or another waterway.

2. Lake: A lake is a water body formed by water accumulation in a relatively wide depression on the land surface.

3. River: River water comes from various main streams, groundwater, etc.

Third, the formation method is different.

1. River: A river is a natural body of water that flows frequently or intermittently along a rectangular depression under the action of gravity.

2. Lake: The lake is artificially mined and naturally formed.

3. River: River is a waterway that belongs to all the territorial areas.

The area is different, the basin is different, and the branches are different, that is, the number of tributaries is different, the salinity of the water is different, and the number and types of plants and organisms in the water are different. Wait a minute.

No. A lake is a large area of still water, while a river is flowing, and the larger flow is called a river, and the smaller flow is called a river. This only applies to the territory of China, and all foreign countries are called rivers.

There is not much difference between rivers and rivers, and the area of the lake is larger and not long.

The definitions are different, the reasons for formation are different, and the boundaries are different.

The definitions are different: a lake refers to a large amount of water that accumulates on land; A river is a naturally occurring watercourse.

The reasons for their formation are different: the formation of lakes can be divided into the following main types: deep valleys appear on the surface due to crustal movements, lakes are called tectonic lakes after water accumulation, glacial erosion causes depressions on the ground, and lakes formed by water accumulation are called glacial lakes.

When the end of the glacier melts, the vertical rocks and sediments carried by the glacier accumulate into a dam, and the lake formed by the empty water on the dam is called a tectonic lake. Glacial lake. The former bay evolved into a lake.

When a volcano erupts, the magma flows into the river, cools and solidifies, forming a dam that cuts off the river, and the water above the dam is impounded into a lake, which is called a volcanic dammed lake. The lake formed by the accumulation of water in the crater is called the crater lake.

The formation of rivers can be divided into the following main types: the water in a river is usually freshwater, which may originate from glaciers, higher terrain, and flow to lower elevation seas, oceans, lakes, underground crevices, or another watercourse. Or it dries up because the inflow is smaller than the evaporation or because it does not encounter other bodies of water.

The boundaries are different: the lake is generally divided into four layers according to its depth: 0-6 meters for the uppermost water layer, 6-8 meters for the water temperature transition layer, 8-15 meters for the variable temperature layer, and below 15 meters for the thermothermal layer. Rivers are generally divided into upstream, middle, and downstream.