waters of the earth
Surface Water
- Surface water is water on the surface of the planet such as in a stream, river, lake, wetland, or ocean. It can be contrasted with groundwater and atmospheric water.
- Non-saline surface water is replenished by precipitation and by recruitment from ground-water. It is lost through evaporation, seepage into the ground where it becomes ground-water, used by plants for transpiration, abstracted by mankind for agriculture, living, industry etc. or discharged to the sea where it becomes saline.
- A watershed is an area of land that drains all the streams a rainfall to a common outlet such as out flow of a reservoir, mouth of a bay, or any point along a stream channel
River and Stream
- Rivers come in lots of different shapes and sizes, but they all have some things in common. All rivers and streams start at some high point. The high point can be a mountain, hill or other elevated area. Water from some source like a spring, snow melt or a lake starts at this high point and begins to flow down to lower points. As the water flows down, it may pick up more water from other small streams, springs or from rain or snow melt. These streams may slowly join together to form a larger stream or river. Small rivers and streams may join together to become larger rivers. Eventually all this water from rivers and streams will run into the ocean or an inland body of water like a lake.
Common environmental problems in lakes and probable causes Associated with nutrient, organic matter, and silt enrichment of lake. If the natural process is accelerate by human influence, it is termed “cultural” eutrophication. Lake are subject to a recreational value, water quality and habitat suitability Among the most common lake problems and conditions that often occur with eutrophication are
• Algal bicoms extensive
• Sedimentarion /turbidity
• Oxygen depletion
• Growth of aquatic plants (macrophytes)
• Water level changes
• Species shifts
- Surface water is water on the surface of the planet such as in a stream, river, lake, wetland, or ocean. It can be contrasted with groundwater and atmospheric water.
- Non-saline surface water is replenished by precipitation and by recruitment from ground-water. It is lost through evaporation, seepage into the ground where it becomes ground-water, used by plants for transpiration, abstracted by mankind for agriculture, living, industry etc. or discharged to the sea where it becomes saline.
- A watershed is an area of land that drains all the streams a rainfall to a common outlet such as out flow of a reservoir, mouth of a bay, or any point along a stream channel
River and Stream
- Rivers come in lots of different shapes and sizes, but they all have some things in common. All rivers and streams start at some high point. The high point can be a mountain, hill or other elevated area. Water from some source like a spring, snow melt or a lake starts at this high point and begins to flow down to lower points. As the water flows down, it may pick up more water from other small streams, springs or from rain or snow melt. These streams may slowly join together to form a larger stream or river. Small rivers and streams may join together to become larger rivers. Eventually all this water from rivers and streams will run into the ocean or an inland body of water like a lake.
Common environmental problems in lakes and probable causes Associated with nutrient, organic matter, and silt enrichment of lake. If the natural process is accelerate by human influence, it is termed “cultural” eutrophication. Lake are subject to a recreational value, water quality and habitat suitability Among the most common lake problems and conditions that often occur with eutrophication are
• Algal bicoms extensive
• Sedimentarion /turbidity
• Oxygen depletion
• Growth of aquatic plants (macrophytes)
• Water level changes
• Species shifts