Spring Peeper Meadow The Restoration Process Julia Bohnen and Susan Galatowitsch

Yüklə 484 b.
ölçüsü484 b.

Spring Peeper Meadow The Restoration Process

  • Julia Bohnen and Susan Galatowitsch

  • Minnesota Landscape Arboretum

History of Wetland Drainage in Minnesota

  • More than 75% of wetlands in the Midwest have been drained

  • Most drainage occurred 25-75 years ago

  • In areas of intense agriculture, less than 5% of wetlands remain

Wetland Mitigation

  • Federal and state laws require that losses of existing wetlands must be avoided or mitigated

  • For every 1 acre of lost wetland,

  • 2 acres must be restored

  • Wetland losses primarily occur in urban areas now

Although much wetland restoration is happening, typically…

  • Only hydrology is restored

  • Little management occurs after initial construction

  • Natural colonization is relied upon to

  • re-populate the plant community

  • The full complement of wetland types

  • is not restored

Restored wetlands do not resemble the native wetlands they are replacing.

Even planted wetlands can have low diversity because

  • Planting density is too low

  • There is a lack of aftercare

  • Plants are placed inappropriately

Why Restore or Preserve Wetlands?

  • Maintain hydrologic function

  • Flood control

  • Improve water quality

  • Habitat

  • Preserve our natural heritage

  • Recreation

Spring Peeper Meadow

Spring Peeper Meadow was Funded to Demonstrate Successful Mitigation Practices

Spring Peeper Meadow Landscape Context

  • Located west of Chanhassen in Carver County

  • Community context was a mosaic of Big Woods forest and savanna with prairie openings and depressional wetlands

  • Rolling landscape

  • Historically the area was a shallow wetland surrounded by Big Woods

A 30-acre purchase on the east edge of the Arboretum provided an opportunity to restore a shallow marsh with an extensive sedge meadow zone

  • The name “Spring Peeper Meadow” reflects our aspirations to restore a shallow depressional wetland and the full complement of species that would thrive in such a wetland.

The Restoration Team

Spring Peeper Meadow Restoration Goals

Spring Peeper Meadow – Pre-Restoration

  • The land was acquired in 1995

  • It had been drained and farmed for more than 80 years

  • The basin was a monoculture of reed canary grass and corn grew on the uplands

Planning & Information Gathering

Steps in the Restoration Process

Site Preparation

Seed Collection & Plant Production 1995 and 1996

Experimental Design

Planting the Wetland

Weed Management

Restoration Inputs are Carefully Documented

Ongoing Research At Spring Peeper Meadow

Wetland Community in Transition

Lessons Learned at Spring Peeper Meadow

Upland Management

Invasive Species Management

Prairie and Savanna Restoration

Forest Restoration

Forest Understory Restoration

Dostları ilə paylaş:

Verilənlər bazası müəlliflik hüququ ilə müdafiə olunur ©genderi.org 2017
rəhbərliyinə müraciət

    Ana səhifə