Effects%20of%20Land%20Use%20on%20the%20Biological%20Integrity%20of%20Streams - PowerPoint PPT Presentation

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Effects%20of%20Land%20Use%20on%20the%20Biological%20Integrity%20of%20Streams

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Effects of Land Use on the Biological Integrity of Streams Michael A. Miller Wisconsin Department of Natural Resources Madison, WI Watershed Concept There is an ... – PowerPoint PPT presentation

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Title: Effects%20of%20Land%20Use%20on%20the%20Biological%20Integrity%20of%20Streams


1
Effects of Land Use on the Biological Integrity
of Streams
Michael A. Miller Wisconsin Department of
Natural Resources Madison, WI
2
Watershed Concept
  • There is an intimate relationship between the
    land and water resources. How we manage land
    within a watershed strongly influences the
    quality of its aquatic resources.

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  • The streams of the Midwest have undoubtedly
    changed much in character since the country has
    become so thickly settled. I have been informed
    that many streams, formerly deep and narrow, and
    abounding in pickerel, bass and catfishes, have
    grown wide and shallow, while the water in them
    varies greatly in different seasons, and they are
    inhabited by bullheads, suckers and a few
    minnows.

Seth Meek, 1892
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Determinants of the Biological Integrity of
Streams
Flow Regime
Water Quality
Biological Integrity
Energy Relationships
Habitat Structure
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Flow Regime
  • Water Volume
  • Temporal Distribution of Flow

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Water Quality
  • Temperature
  • Dissolved Oxygen Concentration
  • Turbidity
  • Organic and Inorganic Chemicals
  • Heavy Metals

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Habitat Structure
  • Streambed Form
  • Substrate Composition
  • Water Depth / Velocity
  • Habitat Diversity

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Energy Relationships
  • Type - Solar, Organic
  • Amount
  • Organic Source

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Clean Water is Not Enough!
  • Water Flow
  • Water Quality
  • Aquatic and Riparian Habitat
  • Food Chain
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