The difference between the area of a water area and the area of a watershed

Water area and watershed area are two different concepts, and they have the following differences:

Water area refers to the surface area of a water body, such as lakes, reservoirs, etc. It is usually calculated in square kilometers or square miles. The area of water is the area of static water, which is the area of a specific geographical area and does not change over time.

The area of a watershed refers to the area of the entire geographical area through which a particular river flows, including the area where all the tributaries, streams, rivers and other water bodies are located. It can be understood that all rainwater in this area will eventually flow into the same river. Watershed area is usually calculated in square kilometers or square miles.

It is a dynamic area as the amount of water in the river changes with factors such as rainfall, seasons, etc.

In summary, the main difference between water area and river basin area is the geographical area and characteristics to which they refer. The water area is the area of static water, specifically referring to the surface area of water bodies such as lakes and reservoirs; Whereas, a basin area is the area of dynamic water and refers to the area of the entire geographical area through which a particular river flows.

Water area refers to the area occupied by the watered area of lakes, oceans, etc.; A river basin is the area occupied by all the water sources that flow into a river, lake, etc. In general, the area of the river basin is much larger than the area of the water. Thank you for your reference.

1.Climate (precipitation affects river flow): high precipitation, large river runoff, wide basin area; On the contrary, the basin area is small.

2.Topography (limiting the width of the riverbed): the existence of watersheds, the development of rivers is restricted, and the area of the basin is small; The terrain is flat and open, and the basin area is wide.

3.Number of tributaries (affecting catchment areas): many tributaries and wide basin area; There are few tributaries and the area of the basin is small.

1.Also known as catchment area or catchment area.

2.The area enclosed by the watershed watershed.

3.Most of the area of the river basin is first determined from the topographic map and the watershed is calculated by the square meter or other methods, and the calculation unit is square kilometers.

4.The area of the basin refers to the area enclosed between the watershed line around the basin and the section of the estuary (or dam or sluice site), and generally refers to the catchment area of surface water, which is measured in km2.

5.Generally, the watershed line of the watershed is the ridgeline, and the area enclosed by the watershed is the extent of the watershed. Due to the non-standard graphics, the area of the map sheet is generally calculated during the calculation, and then the proportion of the basin area in the map area is analyzed, and the multiplication can be done.

1. A river basin is the entire area through which the main stream and tributaries of a river system flow.

2. A river basin refers to a river catchment area surrounded by a watershed. It is divided into two categories: ground catchment area and underground catchment area. If the surface catchment area and the underground catchment area coincide, it is called a closed watershed; If it does not coincide, it is called a non-closed watershed.

3. The so-called river basin generally refers to the ground catchment areaThe water network system composed of all rivers, lakes and other water bodies in the basin is called the water system. Obviously, the collapse basin is much larger than the water system.

Because every water system, such as a river, all its water receiving surfaces, the stove, that is, all the slopes into which the water flows into the river, are counted in the basin.

The difference between a watershed and a river system is that they are defined differently. "Basin" refers to the catchment area of a river surrounded by a watershed, while "water system" refers to a water network system consisting of all rivers, lakes, and other water bodies in a basin. Each river has its own basin, and a large basin can be divided into several small basins according to the hierarchy of the water system, and the small basins can be divided into smaller basins, etc.

What is the difference between a watershed and a water system

1. Zhengbuyan River Basin

A watershed refers to the entire area through which the main stream and tributaries of a river system flow. In hydrographic research, watershed area is an extremely important data. Two or more regions with similar natural conditions, generally the larger the basin area, the more abundant the amount of water in the rivers in the area.

The watershed between river basins is called a watershed, and the line connecting the highest point on the watershed is the watershed, that is, the boundary line of the catchment area.

For example, surface water south of the Qinling Mountains in China flows to the Yangtze River system, and surface water north of the Qinling Mountains flows to the Yellow River system. Watersheds range from mountains to plateaus, or to plains or lakes. Watersheds are evident in mountainous or hilly areas, and watersheds are easily drawn on topographic maps.

The watershed in the plains is not significant, and it is difficult to delineate the watershed using topographic maps alone, and sometimes it is necessary to conduct field surveys to determine them.

2. Water system

According to the final results, the water system is mainly divided into internal and external water systems. Among them, the water flow eventually flows into the inland lake or disappears into the desert, which is called the "noisy internal water system". For example, the Aral Sea system consisting of the Amu Darya and Syr Darya rivers.

The current that eventually flows into the ocean is called "outflow water system", such as the Pacific Ocean water system and the Arctic Ocean water system.