Water Investments - withdrawals
 
For most streams, flow for the
late-summer, fall and winter
months depends on groundwater
storage, a withdrawal of the
spring investment.
 
Water investments:  if you
don't plan wisely, the risks are
high and the returns are poor.
 



  In healthy, well-managed watersheds, stored
  groundwater is released back into the
  stream and riparian area.

 
  Watersheds with poor groundwater storage
  capability may suffer low stream flows as the
  limited storage is exhausted. Streams may
  become intermittent in flow during crucial
  times and water may become unavailable
  for livestock, wildlife and fish.

 

Good mud/bad mud
 
Sound planning for water investments starts before the water hits the system. To ensure streams have flow throughout the year the riparian area must not only be recharged each year, it must be in a condition to first hold and then store water to be released later.
The type and volume of floodplain material - gravel, sand, silt or clay - determines the riparian areas' capability to hold, store and release water. Water moves more slowly through silt or clay than through sand or gravel.

During overbank flooding, areas that are well-vegetated catch more fine sediment that areas that are not.

Plants return organic matter to the soil which increases the soil's water holding capacity.

Organic material can hold nine times its own weight in water.
  Plants bind soil in place
  and trap moving sediment
  - when sediment is captured
  and is used to build soil -
  that's good mud!

10