14.02.2014 Views

Lakescaping, Dr. Rebecca Schneider, click here. - Occainfo.org

Lakescaping, Dr. Rebecca Schneider, click here. - Occainfo.org

Lakescaping, Dr. Rebecca Schneider, click here. - Occainfo.org

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

<strong>Lakescaping</strong>:<br />

WHYs and HOW-TOs<br />

27 June 2012<br />

Otsego Co. Planning Dept.<br />

<strong>Rebecca</strong> <strong>Schneider</strong><br />

Dept. Natural Resources<br />

Cornell University<br />

with materials from<br />

Jamie Vanucchi<br />

Dept. Landscape Architecture<br />

SUNY- ESF


TALK OUTLINE<br />

• Goals<br />

• Plant Communities of Healthy Lakeshores<br />

• Processes and Ecosystem Services<br />

• Human Impacts to Lakeshores<br />

• Creating a Healthy, Attractive Lakeshore<br />

• Step 1: Planning<br />

• Step 2: Site Preparation<br />

• Step 3: Planting<br />

• Step 4: Maintenance<br />

• Case Study: Chautauqua Lake Shoreline


Goals<br />

• Increase awareness of the benefits of good<br />

shoreline management.<br />

• Provide overview of the steps for creating<br />

a healthy lakeshore.<br />

• Improve the health and appearance of<br />

New York’s lake shorelines<br />

Why Healthy Lakeshores are Important<br />

The key to successful lakescaping is understanding<br />

what a healthy<br />

shoreline ecosystem is and<br />

how it functions.


Plant Communities in Healthy, Natural Lake Shorelines<br />

Lakeshore buffers include a diverse<br />

mixture of native trees, shrubs,<br />

herbaceous, and aquatic plants which<br />

have their roots in a rich soil matrix,<br />

and are in close contact with groundwater.


Shorelines are naturally dynamic!<br />

Different types of plants have adaptations to deal with<br />

the average and extreme hydrologic conditions<br />

that they will experience.


DISTANCE (M)<br />

Hydrologic regime<br />

in coastal plain<br />

Pond wetlands, Long Island,<br />

NY


Flooding occurs to aboveground<br />

foliage and to belowground roots.


ADAPTATIONS TO FLOODING<br />

• seed dispersal<br />

• seed germination cues<br />

• seedling establishment<br />

• adult survivorship<br />

• morphological<br />

• physiological<br />

• behavioral


Floating - leaf<br />

Woody trees/shrubs<br />

Emergent<br />

herbaceous<br />

Submersed<br />

Upland<br />

Trees/<br />

Shrubs Marsh<br />

Emergent Floating leaf & submersed<br />

MAJOR TYPES OF SHORELINE PLANTS


U.S. Fish & Wildlife / EPA Wetland Plant Types:<br />

•Obligative upland – red oak (Quercus rubra)<br />

•Facultative upland – sycamore (Platanus occidentalis)<br />

•Facultative wetland – red maple trees (Acer rubrum)<br />

•Obligative wetland – cattails (Typha spp.)<br />

http://plants.usda.gov/wetinfo.html


Processes and Ecosystem Services of Healthy Shorelines<br />

Aboveground leaves and stems<br />

intercept the water flow, slow it down,<br />

causing deposition of materials.<br />

substrate


Vegetation intercepts flowing water, slowing down<br />

currents, and reducing erosive wave energy.<br />

Distichlis spicata


Plant foliage shades<br />

and cools the water,<br />

keeping it suitable<br />

for aquatic<br />

<strong>org</strong>anisms.


Aboveground foliage provides<br />

nursery areas and refugia for juvenile fish,<br />

as well as habitat and food for aquatic insects.


Vegetated shorelines are habitat for wildlife<br />

worth watching.


Belowground<br />

Roots help<br />

stabilize soil and<br />

reduce erosion.


Belowground:<br />

Porous, <strong>org</strong>anic soils<br />

encourage infiltration of water<br />

and reduce overland runoff.<br />

Wetland Soil Composition:<br />

• <strong>org</strong>anic matter, e.g.<br />

decomposing leaves, etc.<br />

accumulates because<br />

anaerobic conditions<br />

• roots<br />

• microbes<br />

• mineral soil grains, pores<br />

• animals (worms, insects)


Belowground<br />

Groundwater flows from uplands<br />

down into lakes but<br />

goes through wetland soils.


Wetlands filter out contaminants<br />

from groundwater and improve<br />

water quality.<br />

Mechanisms:<br />

• adsorption onto soil<br />

particles (o.m., clays)<br />

• microbial transformations<br />

• root uptake of nutrients<br />

Aboveground:<br />

• plant foliage provides sites<br />

for microbial films.


Example: Removal of nitrate by vegetated buffers<br />

Effectiveness of removal of nitrate as a function<br />

of riparian buffer width.<br />

(summary of data from ~10 studies.<br />

Haycock et al. 1993 Ambio 22: 340-346)


Vegetated shorelines help buffer<br />

impacts of ice scour.


Vegetated shorelines deter Canada geese which like<br />

to forage, rest, nest (and mess!)<br />

on lawns near water w<strong>here</strong> they can<br />

see predators and escape quickly.


TALK OUTLINE<br />

Human impacts<br />

• Goals<br />

• Plant Communities of Healthy Lakeshores<br />

• Processes and Ecosystem Services<br />

• Human Impacts to Lakeshores<br />

• Creating a Healthy, Attractive Lakeshore<br />

• Step 1: Planning<br />

• Step 2: Site Preparation<br />

• Step 3: Planting<br />

• Step 4: Maintenance<br />

• Case Study: Chautauqua Lake Shoreline


Bulk heads and other types of “hardening”<br />

remove most ecosystem services and also<br />

bounce wave energy to other shorelines.


Shoreline armoring is occurring<br />

across our freshwater and estuary habitats.


Chautauqua Lake Shorelines<br />

Jamestown, NY 2010<br />

lawn/mud<br />

hardened<br />

vegetative<br />

Bing-Livesearch aerial imagery<br />

Analysis by Miranda Reid


On-site wastewater systems along lakeshores<br />

are frequently a source of nutrients, pathogens,<br />

and other contaminants.


Runoff of fertilizers and pesticides used to maintain<br />

lawns contaminates lake waters and impacts wildlife.


A Comparison of Healthy and Unhealthy Shorelines


TALK OUTLINE<br />

Human impacts<br />

• Goals<br />

• Plant Communities of Healthy Lakeshores<br />

• Processes and Ecosystem Services<br />

• Human Impacts to Lakeshores<br />

• Creating a Healthy, Attractive Lakeshore<br />

• Step 1: Planning<br />

• Step 2: Site Preparation<br />

• Step 3: Planting<br />

• Step 4: Maintenance<br />

• Case Study: Chautauqua Lake Shoreline


HOW TO CREATE YOUR HEALTHY LAKESHORE<br />

Healthy, lakescaped buffer provides seasonal array<br />

of colors, textures, aromas, and continual wildlife activity.<br />

The buffer zone doesn’t have to look unkempt.<br />

It can be colorful, ordered, and textured.


How to Create a Healthy Lakeshore<br />

Step 1: PLANNING<br />

1. Look around at healthy shorelines >><br />

What types of wildflowers, grasses, trees shrubs do you see?<br />

What do you want your shoreline to look like?<br />

2. Collect some basic information about your existing shoreline:<br />

• dimensions,<br />

• slope,<br />

• existing plants,<br />

• soil type.<br />

3. Figure out your budget and resources.<br />

4. Find out local regulations about grading, siltation control,<br />

taking plants.<br />

5. Consider conducting your project in phases.


How to Create a Healthy Lakeshore<br />

Sketch out your design on some graph paper so you can<br />

estimate number of plants, locations.


How to Create a Healthy Lakeshore<br />

Design Guidelines to Improve Lakeshore Functions<br />

• Back away from the edge with buildings and other<br />

structures.<br />

• Minimize expanse of lawn and replace with island<br />

patches of shrubs, trees, mulch and flowers.<br />

• Replace cement paths and other impervious<br />

surfaces with stone, gravel, brick.<br />

• Use mulch wood chips for paths or surround<br />

flat stones.


Steep vertical slopes<br />

should be completely<br />

vegetated to prevent erosion<br />

OR<br />

graded to a<br />

slope of 1:3 or more gentle<br />

Steep Slope<br />

Management


Contouring with<br />

willow or red-osier<br />

dogwood stakes,<br />

fascines can be<br />

used for stabilizing<br />

serious erosion.


How to Create a Healthy Lakeshore<br />

• If you want a clear viewscape of the water, then plant lower shrubs<br />

in front of house and gradually increase height of vegetation<br />

as move towards property borders.<br />

• Curve paths that head to water - straight paths down slopes<br />

channel the flow that causes gullies.<br />

• Consider selecting plants that<br />

take turns blooming over the<br />

growing season.<br />

• 20-25 ft wide buffers is<br />

preferable<br />

but even 10 ft provides<br />

benefits!<br />

Design Guidelines


• Select species that are tolerant of the flooding<br />

conditions and / or saturated soils that they will<br />

experience along the topographic gradient.<br />

• Include a diverse mixture of trees, shrubs, emergent<br />

and submerged wetland species.<br />

• Buy, or if allowed, transplant<br />

from nearby areas.<br />

• Avoid exotic, invasive<br />

plant species.<br />

How to Create a Healthy Lakeshore<br />

Plant Selection<br />

Purple loosestrife


Design example 1<br />

BEFORE<br />

Problem Areas<br />

Vast expanse<br />

of lawn<br />

that impacts<br />

water quality<br />

From <strong>Lakescaping</strong> for Wildlife and Water Quality<br />

Minnesota Dept. Natural Resources<br />

Exposed,<br />

erodable<br />

shoreilne<br />

substrate<br />

No plants for<br />

erosion control<br />

or wildlife


Design Example 1<br />

Trees, shrubs, herbs<br />

replace open lawn<br />

Curving pathway<br />

to water<br />

Vegetated shoreline


Design<br />

Example<br />

2<br />

Viewscape<br />

Is maintained<br />

Vegetated<br />

Slopes<br />

Reduce<br />

erosion


How to Create a Healthy Lakeshore<br />

Step 2: LAND PREPARATION<br />

• A good time to work is at low water level in July, August<br />

to minimize disturbing sediments.<br />

• W<strong>here</strong>ver possible remove bulkheads and walls.<br />

• It may be necessary to use hay bales or other erosion<br />

collectors along slope toe during construction<br />

crest<br />

• Grade slope face to a stable angle and shape;<br />

• Protect the face from raindrop splash with matting.<br />

• Intercept or prevent seepage from forming at crest.<br />

• Divert or intercept upland water flow away from crest.<br />

face<br />

toe


If armoring is critical for permanent erosion control,<br />

use rocks which absorb some wave energy,<br />

just along the toe of the slope,<br />

and couple it with a buffer of plantings.


How to Create a Healthy Lakeshore<br />

Step 3: PLANTING<br />

• Plant a vegetated buffer including, a mixture of trees and<br />

shrubs at upper elevations and wetland<br />

herbaceous plants nearer the bottom.<br />

• Figure on about 1 – 2 herbaceous plants per<br />

10 ft 2 of shoreline.<br />

• You may want to use matting to hold soil in place,<br />

then cut holes at desired locations for planting.


A Successful<br />

<strong>Lakescaping</strong><br />

Project


How to Create a Healthy Lakeshore<br />

Step 4 MAINTENANCE<br />

• Maintenance is critical early on to get plantings going.<br />

• Young plants need watering until their roots get well established.<br />

• May need some replacements<br />

• Weed out undesirables from the in-between areas.


TALK OUTLINE<br />

• Goals<br />

• Plant Communities of Healthy Lakeshores<br />

• Processes and Ecosystem Services<br />

• Human Impacts to Lakeshores<br />

• Creating a Healthy, Attractive Lakeshore<br />

• Step 1: Planning<br />

• Step 2: Site Preparation<br />

• Step 3: Planting<br />

• Step 4: Maintenance<br />

• Case Study: Chautauqua Lake Shoreline<br />

Jamie Vanucchi, SUNY ESF


Case Study: Chautauqua Lake


Resources For Shoreland Design and Buffer Creation<br />

University of Wisconsin Extension Service<br />

Shoreland Restoration: Good step-by-step on website<br />

also. A Growing Solution #GWQ032 is a video w/step-by-step methods<br />

to plan and implement a vegetative buffer zone. Available at<br />

http://www1.uwex.edu/ces/pubs/order.cfm<br />

Minnesota Department of Natural Resources<br />

<strong>Lakescaping</strong> for Wildlife and Water Quality. The book is available from<br />

Minnesota's Bookstore (1-800-657-3757) http://www.minnesotasbookstore.com<br />

Restore Your Shore CD-ROM Available from Minnesota's Bookstore (1-800-<br />

657-3757) http://www.minnesotasbookstore.com Watch for "Restore Your<br />

Shore to be added to the DNR Web site.<br />

University of Minnesota Extension Service<br />

Sustainable Urban Landscape Information Series<br />

http://www.sustland.umn.edu/design/water3.html<br />

GOOD LUCK PLANTING!!

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!