The presence of definite and continuous current is the main characteristic of a stream. The current velocity, which may vary from 0.5 to 2 meter per second or more, depends on the stream gradient. … The current is a major limiting factor in streams.
What are streams in geography? stream geography examples.


What are the characteristics of rivers and streams?

Key Characteristics of Rivers and Streams. Streams or rivers form when water that does not find an underground aquifer, drains off the land by either seeping through the soil or spilling over the surface into the river or stream bed. Water in streams and rivers is in constant motion.

What are characteristics of healthy streams?

  • Lots of dissolved oxygen ( 90% )
  • Cool temperature (-11 Degrees C , 51 Degrees F )
  • Not acidic ( ph8 )
  • Low nutrients (o-3 m9/L )
  • Clear , not turbid.
  • [ Pure water – ph7][Rain-ph6][Acid rain- ph5][Ocean water-ph8]
  • Variety of diversity of organisms.
  • Sensitive- die easy.
What factors determine the characteristics of a stream?

Natural and Human Environment. The geology , climate, and vegetation of a drainage basin provide the natural setting in which a stream develops. The shape of the land and the type of soil play a large role in determining a stream’s characteristics.

What are the characteristics of a mature stream?

A river with a gradient that is less steep than those of youthful rivers and flows more slowly. A mature river is fed by many tributaries and has more discharge than a youthful river. Its channels erode wider rather than deeper.

What are the 4 characteristics of a river?

What are the 4 characteristics of a river? The river is small and flows quickly. Some features expected in this section of the river are V- shaped valleys, interlocking spurs, a river bed with large rocks and stones,gorges, fast flowing rapids and waterfalls.

What is a physical characteristic we could use to measure stream health?

Water Temperature​. Temperature is a critical measure of stream health because it is inversely related to the amount of dissolved oxygen in the water. Due to the behavior of water molecules at different temperatures, warmer water holds less dissolved oxygen, while cooler water contains more.

How do scientists judge the health of a stream?

Scientists have developed ways to assess stream health by censusing the aquatic animal communities in human-impacted streams and comparing to the communities in pristine natural streams. Such efforts often focus on the stream invertebrate community, which includes aquatic insects, crayfish, and mussels.

How do you measure the health of a stream?

  1. Biological: the types and quantities of fish and aquatic insects.
  2. Chemical: the types and quantities of chemicals in the water such as pH, conductivity, water temperature and dissolved oxygen.
  3. Physical: changes in the shape of the stream.

How do you describe a stream?

A stream is a body of water that flows on Earth’s surface. The word stream is often used interchangeably with river, though rivers usually describe larger streams. … As smaller streams flow downhill, they often merge together to form larger streams. These smaller streams are called tributaries.

What’s the difference between a creek and a stream?

A stream is defined as any water body with current that moves under gravity to lower levels. A creek is a small stream of water that is inland. Creek is more turbulent than a stream. … On the other hand, North American, Australian, and New Zealand refer to a stream or water body that is smaller than a river as a creek.

What is difference between stream and river?

Streams are shallower than rivers. Streams are more turbulent and aggressive than rivers. Streams erode stones, sculpt the surface of the earth and carry the sediment into rivers that carry all the sediment into oceans and lakes. Streams flow within narrow banks while rivers flow within wider banks.

What are the characteristics of a youthful river?

Youthful river – a river with a steep gradient that has very few tributaries and flows quickly. Its channels erode deeper rather than wider. Mature river – a river with a gradient that is less steep than those of youthful rivers and flows more slowly than youthful rivers.

What are three characteristics of an old river?

Ridges are sharp, valleys are steep sided, and the landscape has maximum relief. Old age. The valley walls wear down, the river creates a broad flood plain, and begins to meander, or develop wide bends.

What are the main characteristics of a river in its old stage?

Answer: At the old stage of the river it is flowing on flat land. As a result it has to use most of its energy to flow instead of moving its load. More deposition starts to occur and common features begin to form such as ox bow lakes (diagram).

What is the smallest type of stream?

Streams smaller than rivers, roughly in order of size, may be called branches or forks, creeks, brooks, runnels, and rivulets. The very smallest kind of stream, just a trickle, is a rill.

What are the main types of river and their characteristics?

Mature rivers – Mature rivers have grades that are not very steep, and they have several tributaries, along with a fast discharge speed. Old rivers – You can identify old rivers with their floodplains. Rejuvenated rivers – These rivers have various gradients, and they are raised by tectonic movement.

What are some characteristics of a lake?

Temperature, light, and wind are three of the main factors that affect the physical characteristics of a lake. Temperature and light vary from lake to lake. Depth, plant growth, dissolved materials, time of day, season, and latitude can all affect light’s ability to pass through the lake’s water.

Why do we study about streams?

BiT Stream Study – Guided Observations: Streams provide flood control, trap sediments, recycle nutrients, provide habitats for biological communities, and sustain high water quality. These and other qualities of streams benefit the people living within the watershed.

How does a stream carry its load?

Streams transport their load of sediment in three ways: in solution (dissolved load), in suspension (suspended load), or scooting or rolling along the river bottom (bed load).

What makes a healthy Creek?

A healthy stream will have a lot of obstacles in its channel—such as rocks and fallen logs. … In short, a healthy stream will not simply carry water downslope at high speeds, but promote a slow, meandering movement of water that rejuvenates it. It may look inefficient, but it will be a healthy ecosystem.

What are three signs of a healthy stream ecosystem?

  • Riparian vegetation. …
  • Stream temperature. …
  • Water color. …
  • Algae growth. …
  • Foam. …
  • Riffles, runs and pools. …
  • pH level.
Do streams have a high biodiversity?

We found biodiversity typically increased as stream size increased, confirming general patterns from the literature review.

How can you tell if a stream is unhealthy?

Use the observations of the flora and fauna around the stream to determine the health of the stream. The absence of plants and animals around the stream bed will indicate that the stream is unhealthy as it cannot support this type of life.

How do you take care of a creek?

Cool, clear water with no smells, foam, or excessive algae. Stable, gentle banks with deep-rooted plants to hold the soil. Shade provided by healthy trees and shrubs, preferably native, to keep the water cool and to protect against erosion. No litter, yard waste, or dumped material.

What makes a stream unhealthy?

High-energy water erodes stream banks faster, destroying the habitats of stream life. Paved surfaces like roads and parking lots help create high-energy streams because water rushes right off them. It’s not just the numbers of insects that matter, but also the types.

What are the three types of streams?

  • Alluvial Fans. When a stream leaves an area that is relatively steep and enters one that is almost entirely flat, this is called an alluvial fan. …
  • Braided Streams. …
  • Deltas. …
  • Ephemeral Streams. …
  • Intermittent Streams. …
  • Meandering Streams. …
  • Perennial Streams. …
  • Straight Channel Streams.
Why are streams an important geological feature?

Streams have a major role in geology. … By eroding sediment from uplifted areas and creating landforms made of deposited sediment in lower areas, streams shape the earth’s surface more than glaciers do, more than waves on a beach do, and far more than wind does.

What do streams have?

Streams are bodies of water that have a current; they are in constant motion. Geologists recognize many categories of streams depending on their size, depth, speed, and location. Creeks, brooks, tributaries, bayous, and rivers might all be lumped together as streams.

Whats bigger a creek or a stream?

A stream is slightly larger than a branch and can still often be called a creek by folks. … However, most of the time people call smaller flowing water streams. What is a Creek?

Is a creek a river or stream?

Streams vary in size from streamlets to brooks, creeks, and rivers. However, a stream is generally considered to be smaller than a river. A creek is a small body of flowing water. Since stream refers to any flowing body of water, a creek is a type of stream.

What determines a river or creek?

A river may be defined as a naturally occurring watercourse that mostly has fresh water, and that eventually deposits its load into oceans, seas or even other rivers. … Water from melted snow is fresh and that is why most rivers possess fresh water. On the other hand, a creek is a small river or a rivulet.

What is creek in geography?

Definition of creek (Entry 1 of 2) 1 : a natural stream of water normally smaller than and often tributary to a river. 2 chiefly British : a small inlet or bay narrower and extending farther inland than a cove.

What is the difference between a lake and a stream?

Usually, a stream is a body of water with a noticeable current that is usually less than 50 feet, or about 15 meters wide. A lake can also be narrow, and have current, but in general it will be deeper, wider, and have less current.

What is the difference between spring and stream?

Shallow groundwater seeps are called springs, and springs used to be common water sources before the days of widespread well digging. A stream that runs year-round is called a perennial stream.

What are the stages of stream development?

There are three stages of stream development. The names are young streams, mature streams, and old streams.

What are the 3 stages of a river called?

  • Young River – the upper course.
  • Middle Aged River – the middle course.
  • Old River – the lower course.
What are the 3 stages of river?

Answer: Most rivers have an upper (youthful) course, a middle (mature) course and a lower (old age) course. These stages are marked by variations in the characteristics of the river.

What are characteristics of rivers?

A river is a ribbon-like body of water that flows downhill from the force of gravity. A river can be wide and deep, or shallow enough for a person to wade across. A flowing body of water that is smaller than a river is called a stream, creek, or brook.

What is the name of a small stream of freshwater that flows into a larger stream?

A tributary is a freshwater stream that feeds into a larger stream or river. The larger, or parent, river is called the mainstem. The point where a tributary meets the mainstem is called the confluence. Tributaries, also called affluents, do not flow directly into the ocean.

How can you tell the age of a river?

Scientists look at various geologic clues to help determine the age of a river, including how old the valley surrounding it is, how deep the water cuts into the riverbed, and the age of the sediments carried by the river.