The dunes of Midway Beach have a secret ingredient hiding beneath the sand. © Cara Byington/The Nature Conservancy

Thanks to Cool Green Science:

The Secret in the Sand Dunes

Dominick Solazzo likes to say the healthy dunes at Midway Beach and South Seaside Park on the Jersey Shore have a “secret ingredient.” Of course, it’s a secret that gives itself away pretty readily when the wind blows.

Dune grasses have deep roots that help trap sand and anchor the dunes, and help them grow and resist wind erosion. © Cara Byington/TNC

“It’s Christmas trees,” Solazzo says with a smile. Discarded (natural) Christmas trees donated by the city of Secaucus, New Jersey and given a second life – so to speak – as sand dunes. And, yes, according to him and a few of his neighbors, you can smell the sharp, familiar scent of fir through late winter and part of the spring.

But why Christmas trees? In a word: structure.

“They’re like re-bar in concrete,” explains Solazzo. “They help hold the sand and the dune in place, and give it structure. And good structure matters for dunes. It matters a lot.” Continue reading →