Trees Need to Stretch Their Toes
Wednesday, June 27th, 2007By Bruce Golden, Regional Coordinator
If you’re like me, you notice now reclaimed pasturelands that were the scene of past surface mining. They have a not-quite-natural engineered look. And they hardly ever have trees. Did you ever wonder why this land is pretty much always devoid of trees? Well, I did, and I finally found out why.
At a recent meeting of the Council for Research and Reclamation of Disturbed Lands (CRRDL), the theme was reforestation of mined lands. There I learned that the regulations governing the reclamation of surface mined sites require that the soils be highly compacted to lessen the effects of erosion from water runoff. What I didn’t know is that the roots of trees generally aren’t able to develop properly in a highly compacted soil medium. If the roots don’t grow, neither do the trees. It’s that simple. Unfortunately, the would-be trees weren’t informed of the regulations.
Fortunately, though, some smart tree lovin’ folks who thought trees, forests and such would be a good thing on these formerly mined lands looked into the matter and made some suggestions to give trees a fighting chance. First suggestion… you guessed it… don’t compact the soil, leave it real loose. The soil doesn’t have to be that great, but it should be at least 4 feet deep. It shouldn’t be smoothed out and it’s actually better if it looks like a rough moonscape. This allows for small water pools to develop which prevents overall erosion, provides water for the trees and allows good root penetration. The site should then be lightly seeded with compatible native ground cover. And lastly, a variety of tree species, including commercially valuable hardwoods, should be planted using proper planting techniques. These suggestions are the core of the Forestry Reclamation Approach developed by several academic institutions in southern Appalachia.
This relatively easy and economical method of reforestation yields amazingly quick growth and re-establishment of a viable forest in about 15 years. It certainly isn’t what you’d call pretty in the beginning, but the rapid transformation to viable forest land is more than worth it.
Now, getting back to the regulations that required highly compacted soils in reclaiming mine lands. The Federal Office of Surface Mining (OSM), the agency responsible for the regulations, agrees that forested lands have great benefits and have now adopted the Forestry Reclamation Approach as the heart of their Appalachian Regional Reforestation Initiative (ARRI). Reclaiming mine lands to productive forested lands is now highly encouraged by OSM because of the many benefits bestowed by tress and forests. It appears the trick will now be convincing those have gotten used to the established way of reclaiming mine lands to compacted pastures to an unfamiliar methodology that restores forests.
Click here for more information on ARRI.Or contact Pennsylvania’s ARRI Core Team Members:
Doug Saylor, PA DEP, lsaylor@state.pa.us
David Hamilton, OSM, dhamil@osmre.gov