Tree studies in the SERC restoration site

Presention by Dennis Whigham

SI Volunteers:Mary Ann ChristensenSharon HensleyGee Gee LandSteve MyersJohn RichterGreg Sarau

SERC staff:Jay O’Neill

Green rectangles show approximate location of tree plots

a b

c d

e f

g

22.5 21.5

20.5

19.5

SERC site following restoration. Tree plots are on the right side of the stream

SERC – data showing changes in water levels after restoration(Data for site 22.5 shown in slide 2)

Post-Restoration

Importance Value of trees before restoration -2015

ACRU FAGR LIST LITU NYSL

Importance Value of trees following restoration -2016

ACRU FAGR LIST LITU NYSL

Codes: ACRU = Acer rubrum, FAGR = Fagus grandifolia, LIST = Liquidambar styraciflua, LITU = Liriodendron tulipifera, NYSL = Nyssa sylvatica

Dead Liriodendron tulipifera that had been growing on the creekbank prior to restoration

Jul2015

Jan2016

Jul2016

Jan2017

Jul2017

Mea

n g

row

th (

mm

)

restoration period

Restored sitefar from stream

Restored sitenear stream (trees dead)

Liriodendron tulipiferaRestoration site

Jul2015

Jan2016

Jul2016

Jan2017

Jul2017

Jul2017

Mea

n g

row

th (

mm

)

restoration period

Fagus grandifoliaRestoration site Restored site

far from stream

Restored sitenear stream

Acer negundoGrowth at control site

Control sitefar from stream

Control sitenear stream

Jul2015

Jan2016

Jul2016

Jul2017

Jan2017

Mea

n g

row

th (

mm

)

Importance value of shrubs prior to restoration

Species Near Stream Far From Stream

Lindera benzoin 1.47 1.29

Berberis thungergii 0.18 0.28

Quercus sp. 0.17 0.14

Carya sp. 0.17 0.14

Liriodendron tulipifera - 0.14