High School Geography Hydrological features, the influence of topography on hydrological features

Describe the hydrological characteristics of the river:1Traffic:

size, seasonal variation, whether there is a break in the flow; 2.Sediment content: depends on the vegetation status of the watershed; 3.

Icing period: presence or not, length 4Water level:

high and low, change characteristics; 5.Hydropower: the size of the river drop, the flow velocity, the amount of precipitation, the amount of runoff, and the amount of evaporation.

The hydrological characteristics of the river are mainly affected by the natural characteristics of the basin, such as climate, topography, landscape and other factors, and are now also affected by human production and life, mainly including the following aspects, such as recharge mode, flow, sediment content, water level (wet period, dry period), whether there is ice period and so on.

In general, the hydrological characteristics include the following pointsaRunoff bSediment content c

There is no flood season (Lingxun) dThere is no glacial period ewhether hydropower resources are abundant) f

Water level gType of recharge (groundwater, rainwater, glacial meltwater, ice and snow meltwater, etc.).

The size of the runoff, the seasonal changes of the runoff, the flood season (length, time), the amount of sediment, whether there is a freezing period, whether there is a flood (the typical characteristics of the region should be written, such as: there are two flood seasons in spring and summer in Northeast China), these are the things.

Whether there is an ice period. The size of the sand content. Water. There is no flooding. Replenishment type. Interruption of flow, etc.

Generally, there are water level, flow, sediment, flow rate, rainfall, evaporation, runoff.

(1) The terrain is dominated by plains, with gentle water flow, small sediment content, (small drop), and small water energy reserves. (3 points) The region (with a temperate oceanic climate) has more precipitation and more runoff; (3 points) The seasonal variation of precipitation is small, and the flow is relatively stable; (3 points) Mild winters (minimum monthly average temperature above 0), no ice period. (3 points) (2) Advantages:

Precipitation is abundant and relatively uniform; There are many rivers and abundant water sources; The plains are vast; The soil is fertile. (8 points) Disadvantages: low temperature in summer, insufficient sunlight (4 points) (3) Located at the mouth of the river (Seine River), it is a natural harbor, which can realize river-sea combined transportation, radiate the mainland, and is conducive to oil input and export of petroleum products; (2 points) (The Paris basin is the largest industrial area in France, densely populated and economically developed) The market is vast.

2 points).

The characteristics of the high and high school geography and hydrological characteristics include the source, inflow, flow, watershed, tributaries and distribution, and drop-off.

The river system generally refers to the structure of the catchment channel. It includes elements such as source, infusion, flow, watershed, tributaries and distribution, and drop-off. It is not difficult to see that the characteristics of the water system are closely related to the topography, as an ancient Chinese saying goes:

The water flows downward. "It is under this general principle that as long as there is water, a river system can be formed, and when there is more water, the water system will be developed.

High school geography river hydrology refers to the river water structure and changes, such as flow, flow rate, water level, flood season, water temperature and glacial period, sediment content, etc. The most important factor affecting the hydrological change of rivers is the recharge of rivers, that is, water sources. And the water recharge, for most rivers, is mainly rainwater recharge.

Therefore, the hydrology of the river is closely related to the climate of the place where the river flows.

Ice ages, including floods, are of course also climate-related. For example, in the middle reaches of the Yellow River, the surface structure is simple, composed of loess that is easily eroded by flowing water, and there is little vegetation on the ground, resulting in the characteristics of large sediment content of the Yellow River.

Characteristics and causes of outflow river water exchange:

1. The water level and flow rate and their seasonal changes, the water level and flow rate depend on the type of river recharge, and the water level change of the river mainly recharged by rainwater is determined by the characteristics of precipitation; In rivers fed by glacial meltwater, the change of water level is determined by the characteristics of temperature.

2. The length of the flood season, the rainy season starts early and ends late, and the river flood season is long. The rainy season starts late and ends early, and the river flood season is short.

3. The amount of sediment content is determined by the vegetation coverage and soil conditions. The vegetation cover is poor, the soil is loose, and the river has a large sediment content. On the contrary, the sand content is small.

4. Whether there is a freezing period or not is determined by the minimum temperature in the basin. The average monthly temperature is below 0 and the rivers are frozen, and there is no freezing period above 0.

5. The flow rate of the river is determined by the topography, with a large drop and a large flow velocity, a flat terrain and a slow water flow.

6. The amount of water energy reserves is determined by the topography and climatic characteristics of the basin.

Erosion and accumulation of rivers form flowing water landforms;

The magnitude and variation of river water volume affect climate;

River development affects economic development.

The influence of hydrological features on the geographical environment of Brother Repentance:

The erosion and accumulation of rivers form the nuclear destruction of flowing water landforms; The magnitude and variation of river water volume affect climate; The undulating conditions of the terrain affect the flow direction of the river, the conditions for water energy and navigation development; The influence of precipitation: the annual precipitation in the basin is large, the runoff of the river is large, and the runoff of the opposite is small. The soil in the basin is relatively loose, which is prone to soil erosion, and the sediment content of the river is large, while the sediment content of the river is small.

In general, the hydrological characteristics include the following:

1.Runoff (seasonal and interannual variations in runoff size and runoff) 2Sediment content.

3.There is no flood season.

4.Whether there is an ice period.

5.Whether hydropower resources are abundant.

6.Velocity of flow. 7.Recharge type (groundwater, rainwater, glacial meltwater, ice and snow meltwater, etc.) 8Water level:

Therefore, the hydrological characteristics of rivers include runoff, sediment content, flood season, freezing period, water energy resources, flow velocity, river recharge type and water level.

Hydrological characteristics include water volume, water level, freezing period, sediment content, etc. The characteristics of the water system include the morphology of the water system (e.g., dendritic, centripetal, pinny, etc.), the condition and flow of tributary lakes.

1. River basins, river channels (wide and narrow, deep and shallow), etc.

Both are affected by climate, vegetation coverage, and topography.

The key points of the answer to the hydrological characteristics of the river and the characteristics of the water system, and then the area is given according to the question, and the hydrology is answered according to the key points: water level.

Flow rate Sediment content.

Icing period. Changes in runoff during the flood season.

Water system: The length of the river and the direction of its flow.

The size of the watershed area.

The number of tributaries and their morphology (eg; The Mississippi River is a radial river system) river network morphology and density.

Drop or canyon distribution.

The width and narrowness of the river channel, the curve, the depth and shallowness. The size of the river's sediment content.

Whether the river has a freezing period,

Characteristics of the river system: the size of the river basin, the distribution of tributaries, the flow direction, etc.

Hydrological characteristics: flow size, water level change (dry season, flood season), freezing period, sediment content, water energy resources, shipping value, etc.