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management</title></head><body>
<div>I second this cautionary note about introducing non-native plants
and expand it to include non-native animals. Live organisms don't stay
where you put them. Bullfrogs (suggested in the posting below) are not
native to the western US and are strongly implicated in the
extirpation and endangerment of numerous other amphibians.</div>
<div><br></div>
<div>As for the general question of bioremediation using plants, I
recall seeing quite a lot of research out of Germany done in the
1950's-70's. I think a lot of this was from the Max Planck (spelling?)
Institute with a focus on using constructed wetlands for sewage
treatment. Most of this material may be too old to appear in modern
computerized databases.</div>
<div>-Steve Erickson</div>
<div>Frosty Hollow Ecological Restoration</div>
<div>==============================================</div>
<blockquote type="cite" cite>I don't know which native species Fred
was referring to, but far greater hazard to the whole ecosystem can
derive from the introduction of<i><b> non-native</b></i> species into
wetland or any other habitats. I would suggest you do a lot of
reading and talking before you even consider introducing non-native
plants into this or any other application.<br>
<br>
Non-native problem plants in wetlands include water hyacinth, purple
loosestrife, and many others.<br>
<br>
Also read <a
href=
"file://C:\Eudora\Attach\NativeVegetationInsectsTallamyConservBiol2004.pdf"
> NativeVegetationInsectsTallamyConservBiol2004.pdf<br>
<br>
<br>
</a>Bill Stringer<br>
<br>
At 09:09 PM 12/8/2004 Wednesday, Center for Sustainable Resources
wrote:<br>
<blockquote type="cite" cite>I have worked with the process you speak
of quite a bit at times. In fact I use natural vegetation to biofilter
our aquaculture sites. Probably the easiest and most dependable plant
you can use for this is the cattail. They are commonly used on mine
sites now because they are so good at binding many substances. Bog
plants in general are very good at this. as they burn up bicarbonates
when the sun shines they collect metals in their root systems. Yellow
Flag( japanesenaturalized) or blue flag native but not much different
are also good. Some of the most problematic plants as far as growing
over the entire waterway are the native ones. Stay away from anything
viny. Lotus and lilly are good but need to be tamed now and then. If
you are dealing with a sewage treatment system bullfrog tadpoles are
good for controling bacteria but you need large numbers. Fred Hays<br>
<blockquote type="cite" cite>From: Louisa Rogoff Thompson
<louisathompson@erols.com><br>
To: NativePlantseast
<native-plants@lists.plantconservation.org>, WorthleyBotany
<WorthleyBotany@yahoogroups.com><br>
Subject: [PCA] native plants for cities, stormwater management<br>
Date: Tue, 07 Dec 2004 11:53:47 -0500<br>
<br>
I'm looking for information about native plants adapted to various
kinds of stressful environments, particularly salt and heavy metals.
It's my firm belief that plants can take care of soil and water better
than facilities made of concrete and other man-made materials.
And I prefer to use native plants, because they are unlikely to turn
out to be invasive, and because they are more likely than exotics to
form collaborative relationships with soil organisms and above-ground
wildlife.<br>
<br>
I'm currently working on a grad school project to design a landscape
for a vacant lot which will divert stormwater from the street into the
lot to be filtered and slowed down. Most vacant lots
previously had buildings on them, which means they now have fill dirt,
and infiltration facilities are not permitted on fill. So the
water has to be returned to the storm drain system, but some will
evaporate and the rest will be returned slowly, reducing the volume of
fast-flowing water during the storm.<br>
<br>
The man at Baltimore's Dept. of Public Works who issues permits for
this kind of thing says a solution would be very valuable, and could
be used on many vacant lots throughout the city. If I can get
this to work, it could have a very significant impact. Did you
know that much of Baltimore's stormwater is piped directly into the
Inner Harbor? And it carries cadmium, copper, chromium, lead,
and other heavy metals, mostly from tires, some from diesel exhaust,
and some from old lead paint. And road salt, in
winter.</blockquote>
<blockquote type="cite" cite><br>
If you have seen plants either survive or be harmed by road salt, air
pollution (e.g. from bus exhaust at a bus stop), or heavy metals
(e.g., lead paint chips in the soil), I'd like to know about it.<br>
<br>
Also, if you know of published information please tell me. I
have Dirr's Manual of Woody Landscape Plants, which has this kind of
information for many trees and shrubs. Is there something
comparable for herbaceous plants? I also have Md. Dept. of
Environment's Stormwater Design Manual, which has a long list of
plants, indicating tolerance to salt and pollution. The only
plant listed as tolerant to both is Eastern white pine. Most
likely this is a list of known tolerance, i.e., no check mark means no
knowledge, not no tolerance.<br>
<br>
Your help will be much appreciated.<br>
<br>
Louisa Thompson<br>
Institute of Architecture and Planning<br>
Morgan State University<br>
Baltimore, MD<br>
<br>
<br>
<br>
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</blockquote>
</blockquote>
<blockquote type="cite" cite><br>
<br>
<br>
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</blockquote>
</blockquote>
<blockquote type="cite" cite><br>
William C. Stringer<br>
Forage Agronomist &<br>
Native Plant Enthusiast<br>
Clemson University<br>
<br>
Entomology, Soils and Plant Science<br>
279 P&AS Bldg<br>
PO Box 0315<br>
Clemson, SC 29634<br>
<br>
864 656 3527 Voice<br>
864 656 3443 FAX</blockquote>
<blockquote type="cite" cite><br>
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