The end is near! The world? No, just the winter season. And what bears such glad tidings you wonder? Our native plant friends. In February, the Schuylkill Center staff took its monthly nature walk down Ravine Loop hunting for the first tell of spring, skunk cabbage (above). I’m happy to report that we found it on February 9th in a particularly wet area just above Smith Run where the little stone bridge crosses a semi-perennial tributary. Just barely visible was its little purplish hood, the forbearer of the true flower. The first source of pollen in late winter, skunk cabbage attracts bees and other hungry pollinators looking for their first taste of spring. Continue reading
By Steve Goin, Director of Land and Facilities
See other Field Guide posts here.
As Director of Land and Facilities at the Schuylkill Center, the care of our trees rests on my shoulders. With 340 mostly forested acres, our tree population is large and diverse in both species and maturity. The recent nor’easters brought heavy, wet snow and a barrage of winds, impacting our trees and in some cases causing damage. The damage is as varied as the trees themselves. Some trees barely lost a twig, others had major limbs break, and some even blew completely over, known as windthrow. As a tree lover, I know the value of the services these trees provide—sequestering carbon, providing habitat for wildlife, and managing our property’s stormwater—is well worth the effort required to maintain them. Continue reading
By Claire Morgan, Volunteer Coordinator & Administrative Assistant
It’s early spring, just around sunset, and the conditions are just right—55 degrees and humid. A high-pitched trilling rings out in the distance. The shallow water of the Upper Roxborough Reservoir Preserve stirs with excitement. The toads of Roxborough are ready to run—and ready to attract a mate.
On some evenings, as many as two hundred toads can be seen heading from the Schuylkill Center’s forest to the Upper Roxborough Reservoir Preserve in a period of just two hours. The steady stream of traffic at the intersection of Hagy’s Mill Road and Port Royal Avenue (that separates the forest from the preserve) presents a huge obstacle to the toads as they cross the road in preparation for their springtime mating ritual. Continue reading
By Mike Weilbacher, Executive Director
On Thursday, November 16 at 7 pm, the Schuylkill Center presents our highest honor, the Henry Meigs Award for Environmental Leadership, to an old friend and Roxborough neighbor, Kay Sykora.
Founder of the incredibly successful Manayunk Development Corporation in the early 1980s, Kay has over the last 30 years pioneered and tirelessly championed the Schuylkill River Trail through Manayunk and Roxborough, leading the effort to transform the canal towpath into the River Trail, now one of Manayunk’s most-loved amenities. She played a key role in the planning efforts that led to the Manayunk Bridge’s reinvention as a multi-modal trail beloved by thousands of bikers, runners, and walkers.
She also founded Destination Schuylkill River to re-connect Manayunk to its river, has been involved in restoring the canal, and is equally passionate about making the towpath a more vibrant and enticing community amenity. She has been a leader in the Central Roxborough Civic Association and co-founded Roxborough Green, a community tree planting and gardening project.
“I am deeply honored by the recognition for the work we all have done,” Kay said. “I say this because I feel that I am more a facilitator for the people who care about trails, nature, and greening. If people didn’t care the work never would have succeeded.” Continue reading
By Andrew Kirkpatrick, Manager of Land Stewardship
If you take a walk along Smith Run, coming up Ravine Loop below Penn’s Native Acres, the hillsides where the beeches, oaks and maples grow show signs of distress. The structural roots of the trees are visible at the soil line when they should be tucked away cozily wrapped in the warm blanket of leaf litter and organic rich soil. Instead, because of exotic invasive earthworms, which can be observed by scraping away the thin layer of leaves on the ground, the roots are exposed and left to fend for themselves in all of the elements; freezing winter winds, driving rains, and blazing sun. If you look up, the impact on the trees is apparent. Bare branches and diminished canopy reveal their stresses. The trees are dying.
In healthy, undisturbed forest soil, we would discover a universe of fungus, microorganisms, bacteria, and insects thriving. All of these elements facilitate the healthy growth and development of plant roots. The vast root mat matrix of the organic horizon (the top layer of healthy soil) in the forest acts like a gigantic sponge that collects water when it rains and holds it in storage for trees to use in the drier months of the year.
However, in highly disturbed areas like the Schuylkill Center, the organic horizon of the soil is absent. Soil horizon is a technical term for the classification of the cake-like layers of soil. The organic horizon is missing here because hundreds of years of agricultural use have long since removed the original rich soil and left mostly thin, mineral soil at the top of the profile. In fact, parts of our property were in farmland almost until the Center’s founding in 1965. The forest has not been able to redevelop the O horizon as it might have otherwise, largely due to the activity of invasive earthworms.
The invasive earthworms are much larger than our native ones, tunnel deeper into the earth and voraciously devour the leaf litter that would accumulate annually in the fall, break down over time to replenish the soil, and rebuild the O horizon. So what is left is a loose accumulation of worm castings on a destabilized base that washes away into our streams every time it rains, carrying many nutrients with them. And when the dry times of the year arrive, the trees have no reserve of nutrients to draw upon. Instead our forest is stressed and vulnerable to attack from pests and diseases that it would otherwise be able to fend off.
We can address these problems by improving the soil and providing the roots of trees with a healthy environment to grow and develop. In our Fox Glen restoration site, as we planted new trees we covered the ground around them with wood chips to help the roots retain moisture. The wood chips will break down over time and add to the organic content of the soil.
If we want our forest at the Schuylkill Center to survive climate change and the increasing stresses that come from an urban environment, we must help it to be as resilient as possible by replacing the missing sponge.
About the author
Andrew has a master’s degree in landscape architecture and ecological restoration from Temple University. He hiked the Appalachian Trail from Georgia to Maine in 2005-2006.
Photo by Heather Fowler, WHYY
An excerpt from this piece was published in our summer newsletter in June 2017.
By Mike Weilbacher, Executive Director
SCEE visitors added their climate stories at 2016’s Naturepalooza Earth Day Festival.
A big environmental shoe dropped yesterday when President Trump announced, not unexpectedly, his intention to withdraw from the Paris Climate Accord.
The Schuylkill Center, along with not only the global environmental community but also, surprisingly, Secretary of State Rex Tillerson, oil giant ExxonMobil, the World Coal Association, Pope Francis, Goldman Sachs, Apple, GE, Weather.com, and the majority of American people, expresses our disappointment in this decision.
We also note our commitment not only to fact-based climate change education, but to high-quality science education so children mature into adults who understand, and can apply, the scientific process.
As a science education facility, we understand and teach about the avalanche of measurable data like carbon dioxide concentrations already approaching 410 parts per million—from the pre-Industrial Revolution level of only 280, a 46% increase in 200 years. Also observable: each year is incrementally warmer than the one before, glaciers are measurably receding worldwide, polar ice is measurably thinning, sea levels are measurably rising, coral reefs are measurably bleaching and dying, spring is measurably arriving earlier each year, and species are observably disappearing from pristine habitats as weather changes.
We firmly believe in continuing the transition to a renewable, sustainable future, and will strive to share that vision with the thousands of people, especially young students, who participate in our programming.
As pioneering science fiction writer H. G. Wells noted presciently more than a century ago in his science writing, “Human history becomes more and more a race between education and catastrophe.”
We believe in leveraging the power of education to avoid the climate catastrophe that the Paris Climate Accord was hoping to sidestep.
As a member, friend, and supporter, we trust you will continue to look to us for the good science and detailed knowledge you need to make decisions about the signature environmental issue of our time.
By Judy Wicks, founder of the White Dog Cafe
Dear citizens of the world in 2040,
If you are able to read this letter, I am relieved. I have been worrying about you – you the children of our children’s children – because today’s humans, your ancestors, are endangering your future by destroying the natural systems your lives will depend upon. When I watch how other species care for their young – from gorillas to penguins to whales – I see how willing they are to give their very lives to secure a safe future for the next generation. Yet we humans, at least affluent Americans, seem more concerned with having a lot of stuff in our big houses than making sure that you will have the basics for a healthy life – clean air and water, healthy forests, rich soil to grow food, abundant river and sea life, a hospitable climate. Continue reading
By Melissa Nase, Manager of Land Stewardship
October 10, 2015
Dear Future Land Stewardship Manager,
I hope that you are reading this full of positivity and empowerment. There is a certain developing momentum now – urban gardening, native plants, the value of getting outdoors – and my hope is that these past 25 years have been full of a growing environmental awareness throughout the Philadelphia region and the world, with movements rising up from small community groups as well as developing from our political leaders.
My hope is that Philadelphia will take the lead in emphasizing environmental policies, creating a new standard for sustainability and the integration of nature into urban environments. That they will begin emphasizing native plants, adding oaks and redbuds as street trees to replace the non-native gingko and Bradford pears. What if, by 2040, Philadelphia is known for its tree-lined streets and becomes a model for crime reduction methods: through planting trees and introducing natural areas into locations that were formerly vacant lots and concrete. The city can create systemic changes that influence air quality, crime rates, and happiness and it all starts by adding trees to our city blocks. I hope the city is safer, cooler, and more inviting. I hope it is ready to manage climate change. Continue reading
By Richard Whiteford
Hello. My name is Richard Whiteford. I’m writing to you on August 24, 2015. I’ll turn 69 next month so, if I live to be 94, there’s an outside chance that I can be there when you open this capsule.
In my lifetime I’ve watched humans destroy the world’s biological diversity to the point of increasing the extinction rate to 1000 times the natural background rate from habitat loss and climate change. For instance, fish populations are crashing, agricultural areas worldwide are being decimated by extreme droughts. Many rivers are running dry from the loss of glacial feed. Insect infestations and wildfires are destroying forests because of climate change. Continue reading
By Maya van Rossum, Delaware Riverkeeper
Dear Future Generations,
You are 25 years in the future. Please tell me what my beloved Delaware River is like today. I am hopeful that the work that is keeping me up at nights today in 2015 has resulted in a cleaner and healthier River for you. Continue reading