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romanna [79]
3 years ago
12

2. How does temperature affect water availability in an ecosystem?

Biology
2 answers:
Setler79 [48]3 years ago
6 0

Answer:

The temperature affects the water availability in an ecosystem. If the temperature is too high there is an increased rate of evaporation and the water dries out easily and there is a scarcity of water.

If the temperature is too low then the water will be transformed into ice that is again not useful for the organisms

If the temperature is ambient there is enough amount of water available for the use of the animals in an ecosystem..

Nitella [24]3 years ago
3 0

Water resources are important to both society and ecosystems. We depend on a reliable, clean supply of drinking water to sustain our health. We also need water for agriculture, energy production, navigation, recreation, and manufacturing. Many of these uses put pressure on water resources, stresses that are likely to be exacerbated by climate change.

Related Links

EPA:

Climate Change and Water

Climate Change and Water: Planning and Management

Learn About Water

Climate Ready Water Utilities

Other:

National Climate Assessment: Water

USGCRP: Climate Change and Agriculture, Land Resources, Water Resources, and Biodiversity

IPCC: Fifth Assessment Report EXIT

IPCC: Technical Paper on Climate Change and Water EXIT

NAS: America's Climate Choices EXIT

USGS: Water Resources of the United States

USGS: The Water Cycle

Energy.gov (Information about renewable energy production, including hydroelectricity, by state)

In many areas, climate change is likely to increase water demand while shrinking water supplies. This shifting balance would challenge water managers to simultaneously meet the needs of growing communities, sensitive ecosystems, farmers, ranchers, energy producers, and manufacturers.

In some areas, water shortages will be less of a problem than increases in runoff, flooding, or sea level rise. These effects can reduce the quality of water and can damage the infrastructure that we use to transport and deliver water.

Top of Page

Water Cycle and Water Demand

The water cycle (shown in the following figure) is a delicate balance of precipitation, evaporation, and all of the steps in between. Warmer temperatures increase the rate of evaporation of water into the atmosphere, in effect increasing the atmosphere's capacity to "hold" water.[1] Increased evaporation may dry out some areas and fall as excess precipitation on other areas.

Changes in the amount of rain falling during storms provide evidence that the water cycle is already changing. Over the past 50 years, the amount of rain falling during very heavy precipitation events has increased for most of the United States.  This trend has been greatest in the Northeast, Midwest, and upper Great Plains, where the amount of rain falling during the most intense 1% of storms has increased more than 30%.[1]  Warming winter temperatures cause more precipitation to fall as rain rather than snow. Furthermore, rising temperatures cause snow to begin melting earlier in the year. This alters the timing of streamflow in rivers that have their sources in mountainous areas.[1]

As temperatures rise, people and animals need more water to maintain their health and thrive. Many important economic activities, like producing energy at power plants, raising livestock, and growing food crops, also require water. The amount of water available for these activities may be reduced as Earth warms and if competition for water resources increases.[1]

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