Hurricane Sandy Chopped Wood. Will Forests Recover?

 

Central Park Conservancy

Thousands of trees never stood a chance against hurricane Sandy鈥檚 merciless winds that blasted the Northeast last week. And when those trees faltered, they fell with crushing force. Uprooted, splintered, and draped over houses and utility wires, downed trees continue to be a reminder of the unprecedented super storm that pounded the region. In Central Park alone, an estimated 650 trees toppled, including a

 

Many other majestic maples, oaks, and pines continue to join the woodpile. Some stood when Thomas Jefferson was president. Others when Orville and Wilbur Wright took their first flight. Many were indelible family centerpieces that provided shade for picnics and a sturdy place to hang a child鈥檚 swing.

 

On the Sunday after Sandy鈥檚 winds whipped through Connecticut I joined , a naturalist and environmental educator at 爆料公社 Greenwich, for a walk on the center鈥檚 285 acres. Our plan was to survey some of the dead trees that fell by the dozens. Zipping up his jacket and tugging on a navy-blue knit cap, Gilman set off into the forest where most of the tree limbs overhead were now bare. Leaves that had only a week earlier lit up the woods in fiery shades of crimson and amber now crunched underfoot.

 

Gilman soon reached the upended trunk of an 鈥渙ld friend,鈥 a giant red oak by which he had stopped hundreds of times to hold a seed between his fingers as he explained to a child how it would germinate on the forest floor. Hooking the end of his oversized tape measure into the tree鈥檚 gnarly bark, he backed up the slope, navigating broken branches and uneven ground, until he could report the tree鈥檚 height鈥105 feet. Then the diameter: 4 feet. 鈥淥h man,鈥 he said, nearly in a whisper. 鈥淭his tree was a living landmark, a reminder of just how big the trees could be and how conceivably big they were in the past.鈥

 

News of the oak鈥檚 demise made Gilman鈥檚 , but now several days after Sandy鈥檚 visit (three days before a fierce nor鈥檈aster would roll into town) he was considering the situation from a more scientific perspective. Sandy was not the first hurricane to hit a Connecticut forest, he said, handing over the book 鈥淎 Sierra Club Naturalist鈥檚 Guide,鈥 by Neil Jorgensen, published in 1978. Jorgensen wrote of a 1938 hurricane that walloped southern Connecticut as its eye moved up the Connecticut Valley before veering northwest across Vermont.

 

The economic impact of that hurricane was beyond belief. Hundreds of thousands of mature white pines鈥攁t that time, the mainstay of New England鈥檚 timber industry鈥攆ell like an army of tin soldiers.

 

But Jorgensen had good news, too. The recovery of such hurricane-damaged forests can happen more quickly than if the woodland had suffered a major fire, he wrote. Large trees bear the brunt of the wind, allowing smaller trees in the understory to survive. The loss of older trees creates gaps in the canopy, encouraging the growth of young saplings previously suppressed by shade. Mounds of ground unearthed by uprooted trees produce so-called pillows where a shallow-rooted birch tree鈥檚 seed might blow in and take-hold.  

 

Gilman had spent the morning leafing through Jorgensen鈥檚 writings, and now he was reflecting on the bigger picture. 鈥淭he whole forest did not get knocked down,鈥 he told me. 鈥淲e lost some very special old trees, but the forest is intact.鈥

 

As he ambled along twisting trails, pausing periodically to clear a branch, Gilman talked about how the changes to the woodland鈥攁nd particularly the availability of acorns鈥攄ue to the storm may, or may not, affect birds and other wildlife next fall and winter. Would acorn-dependent birds like tufted titmice and blue jays need to switch to another food source? Possibly, but it would be hard to say right now; by then, many other ecological factors would be in play.

 

Standing near a giant tulip poplar that smashed a nearby boardwalk when it succumbed to Sandy鈥檚 wind, Gilman pointed toward the canopy. 鈥淭here鈥檚 another tulip tree coming; it鈥檚 not small by any means.鈥 Eyeing the young tree鈥攁lready 30 or 40 feet tall鈥攈e smiled a little. 鈥淚 don鈥檛 think our titmice will starve.鈥