BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley - - PowerPoint PPT Presentation

▶
beaver mediated anastomosed streams c lassified
SMART_READER_LITE
LIVE PREVIEW

BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley - - PowerPoint PPT Presentation

May 31, 2023 388 likes •619 views

BEAVER - MEDIATED ANASTOMOSED STREAMS - C LASSIFIED Mark Beardsley & Jessica Doran The first step in wisdom is to know the things themselves; objects are distinguished and known by classifying them methodically and giving them

slide-1
SLIDE 1

BEAVER-MEDIATED ANASTOMOSED STREAMS

  • CLASSIFIED

Mark Beardsley & Jessica Doran

slide-2
SLIDE 2

The first step in wisdom is to know the things themselves;

  • bjects are distinguished and

known by classifying them methodically and giving them appropriate names. Therefore, classification and name-giving will be the foundation of our science. Carolus Linnaeus Systema Naturae (1735)

slide-3
SLIDE 3

Carolus Linnaeus Systema Naturae (1735)

slide-4
SLIDE 4
slide-5
SLIDE 5
slide-6
SLIDE 6
slide-7
SLIDE 7

C4

REFERENCE APPLICATIONS

  • ASSESSMENT (DEPARTURE, EVOLUTION)
  • RESTORATION (NCD)
  • INVENTORY (WATERSHED FUNCTION)
slide-8
SLIDE 8
slide-9
SLIDE 9

Beaver-mediated meadow streams. Functions and services

Water storage/ retention

DB

slide-10
SLIDE 10

THE DB STREAM TYPE

  • ANASTOMOSED
  • BEAVERS - DAMS, PONDS, CHANNELS
  • FLOODPLAIN CONNECTION (H<<HC)
  • STABLE OR AGGRADING (Qsin≥ Qsout)
  • VARIABLE W/D, K, S
slide-11
SLIDE 11

STREAM EVOLUTION MODEL

DB C or E G F D

  • r

C

Cluer and Thorne (2013) A Stream Evolution Model Integrating Habitat and Ecosystem Benefits. River Research and Applications.

slide-12
SLIDE 12
slide-13
SLIDE 13

WHAT’S SO DAM IMPORTANT?

  • DB IMPORTANT

FUNCTIONS

  • DB → C/E

CONVERSION

  • C/E → DB

RESTORATION

DB C

slide-14
SLIDE 14

Hydrology

Floodplain connection Water storage/retention Base flow maintenance Flood attenuation Groundwater exchange

Habitat/wetland

Vegetation structure/diversity Aquatic habitat diversity Fisheries support Wildlife support

Water quality

  • Temp. regulation

Filtration Nutrient cycling Sediment storage/retention

DB FUNCTIONS

slide-15
SLIDE 15

C/E (1)

DB (0)

Pre- settlement

C/E (1)

DB (0) Present day

DB → C CONVERSION

C/E DB

slide-16
SLIDE 16

DB (0) C (1)

DB → C CONVERSION

slide-17
SLIDE 17

DB → C CONVERSION

Land use patterns

slide-18
SLIDE 18

Late 1800s 2012

DB → C CONVERSION

Historic photos

slide-19
SLIDE 19

FLOODPLAIN

LANDFORM & SOILS

DB → C CONVERSION

slide-20
SLIDE 20

DB C

RESTORATION C → DB

C

slide-21
SLIDE 21

DB (STAGE 0) EXISTS! DB HIGHLY FUNCTIONAL DB → C/E C/E → DB

SUMMARY

slide-22
SLIDE 22

DB (STAGE 0) EXISTS! DB HIGHLY FUNCTIONAL DB → C/E C/E → DB

SUMMARY