Let’s talk about dirt: soil ecology hikes at the Cary Institute

Let’s talk about dirt: soil ecology hikes at the Cary Institute

Jane Lucas, who holds a doctorate in ecology and evolutionary biology, at right in all black, leads an educational hike through the woods at the Cary Institute in Millbrook Sunday, Sept. 29. The group followed Lucas down the trail to Wappingers Creek, where she explained the nitrogen cycle, the phosphorous cycle and the carbon cycle and the important role soil microbes play in each.

Photo by Nathan Miller

MILLBROOK — A crowd of nearly 30 went undeterred by cool rain for a hike and lecture on soil ecology at the Cary Institute Sunday morning, Sept. 29.

Jane Lucas, who holds a doctorate in ecology and evolutionary biology, led the group on a brief hike in the frigid mist and discussed her research focus: microbial communities.

Lucas said scientists have started to look more closely at soil. In the past, soil science was largely focused on agriculture. The main concern of practitioners and academics were improving yield and reliability of crop harvests and grazing. Now, Lucas said, there is more study on soil’s role in the environment as a whole, and as it’s own environment.

That’s Lucas’s research focus at the Cary Institute. She said soil is host to trillions of microbial critters that are responsible for turning dead leaves and branches into dirt, plus about a million other critical things. “In a spoonful of dirt there are more microbes than people on the planet,” Lucas said to the crowd, sheltered in Cary’s carriage house to escape the drizzle.

Soil microbes are microscopic critters like bacteria, viruses, fungi and algae, and they’re essential in making dirt do what it does best: grow things. They break down organic matter, making nutrients and minerals available in the soil for plants to use.

Soil microbes also bear a lot of responsibility for carbon fixing. When a plant absorbs carbon dioxide from the air it breaks it down and releases oxygen, storing the carbon for use in food. Up to 30% of that carbon is then excreted from the plant’s roots into the soil in substances called exudates, Lucas said. The microscopic critters in the dirt feed on the exudates, locking the carbon in the soil and keeping it out of the atmosphere. The rest of the carbon that’s stored in the plant makes it into the soil when the plant dies and decays.

Microbiomes are diverse and soil conditions have a huge impact on their composition and health. Lucas has been studying the effects of climate change on soil ecology. Experiments at the Cary Institute are testing how elevated soil temperatures, varying pH levels and drought affect microbiome performance. Lucas said microbiome health has huge implications for the health of plants and animals in an environment, and the impacts of climate change have the potential to impact soil ecology negatively.

Lucas made a point to emphasize a holistic view of soil ecology. She gave phosphorous as an example. Phosphorous is a key nutrient to plant health, but most of the phosphorous on Earth is locked in hard rocks below the surface. However, Lucas said, the sands of the Sahara desert contain a lot of stored phosphorous. Winds and currents carry this phosphorous rich sand across the pacific ocean to South America, where it supplies the Amazon rainforest with phosphorous for its lush vegetation. Even when it isn’t traveling thousands of miles across an ocean, dirt is an essential part of our environment, and inextricably linked to to agriculture and public health, Lucas said.

Cary Institute hosts regular lectures hosted by its researching scientists and associates. More information and upcoming events can be found at www.caryinstitute.org/events.

Latest News

Amenia trails project public hearing set for Feb. 19
Amenia Town Hall on Route 22.
Photo by Nathan Miller

AMENIA — A proposed hiking and biking trail system will be the subject of a public hearing at Amenia Town Hall on Route 22 this Thursday, Feb. 19, at 7 p.m.

Northern Red Oak LLC, a 501(c)3 nonprofit, seeks to build 10-12 miles of public trails on land at 426 Old Route 22 and two additional vacant parcels.

Keep ReadingShow less
Speed cameras gain ground in Connecticut, stall in Dutchess County

A speed enforcement camera in New York City.

Photo courtesy NYC DOT

Speed cameras remain a tough sell across northwest Connecticut — and are still absent from local roads in neighboring Dutchess County.

Town leaders across northwest Connecticut are moving cautiously on speed cameras, despite a state law passed in 2023 that allows municipalities to install them. In contrast, no towns or villages in Dutchess County currently operate local automated speed-camera programs, even as New York City has relied on the technology for years.

Keep ReadingShow less
google preferred source

Want more of our stories on Google? Click here to make us a Preferred Source.

In remembrance:
Tim Prentice and the art of making the wind visible
In remembrance: Tim Prentice and the art of making the wind visible
In remembrance: Tim Prentice and the art of making the wind visible

There are artists who make objects, and then there are artists who alter the way we move through the world. Tim Prentice belonged to the latter. The kinetic sculptor, architect and longtime Cornwall resident died in November 2025 at age 95, leaving a legacy of what he called “toys for the wind,” work that did not simply occupy space but activated it, inviting viewers to slow down, look longer and feel more deeply the invisible forces that shape daily life.

Prentice received a master’s degree from the Yale School of Art and Architecture in 1960, where he studied with German-born American artist and educator Josef Albers, taking his course once as an undergraduate and again in graduate school.In “The Air Made Visible,” a 2024 short film by the Vision & Art Project produced by the American Macular Degeneration Fund, a nonprofit organization that documents artists working with vision loss, Prentice spoke of his admiration for Albers’ discipline and his ability to strip away everything but color. He recalled thinking, “If I could do that same thing with motion, I’d have a chance of finding a new form.”

Keep ReadingShow less
Strategic partnership unites design, architecture and construction

Hyalite Builders is leading the structural rehabilitation of The Stissing Center in Pine Plains.

Provided

For homeowners overwhelmed by juggling designers, architects and contractors, a new Salisbury-based collaboration is offering a one-team approach from concept to construction. Casa Marcelo Interior Design Studio, based in Salisbury, has joined forces with Charles Matz Architect, led by Charles Matz, AIA RIBA, and Hyalite Builders, led by Matt Soleau. The alliance introduces an integrated design-build model that aims to streamline the sometimes-fragmented process of home renovation and new construction.

“The whole thing is based on integrated services,” said Marcelo, founder of Casa Marcelo. “Normally when clients come to us, they are coming to us for design. But there’s also some architecture and construction that needs to happen eventually. So, I thought, why don’t we just partner with people that we know we can work well with together?”

Keep ReadingShow less
‘The Dark’ turns midwinter into a weeklong arts celebration

Autumn Knight will perform as part of PS21’s “The Dark.”

Provided

This February, PS21: Center for Contemporary Performance in Chatham, New York, will transform the depths of midwinter into a radiant week of cutting-edge art, music, dance, theater and performance with its inaugural winter festival, The Dark. Running Feb. 16–22, the ambitious festival features more than 60 international artists and over 80 performances, making it one of the most expansive cultural events in the region.

Curated to explore winter as a season of extremes — community and solitude, fire and ice, darkness and light — The Dark will take place not only at PS21’s sprawling campus in Chatham, but in theaters, restaurants, libraries, saunas and outdoor spaces across Columbia County. Attendees can warm up between performances with complimentary sauna sessions, glide across a seasonal ice-skating rink or gather around nightly bonfires, making the festival as much a social winter experience as an artistic one.

Keep ReadingShow less
google preferred source

Want more of our stories on Google? Click here to make us a Preferred Source.

google preferred source

Want more of our stories on Google? Click here to make us a Preferred Source.