January has been a rough month for getting any heavy work done in
the field. Warm temperatures and frequent rains left the soil highly vulnerable
to compaction and other damage resulting from inappropriate management activities.
It has only been in the last few days that I’ve been able to perform any
intensive work, and that has been limited to hilltop areas that drain and dry
out quickly. I removed the girdled trees that had fallen in my planned
grassland area. A few stumps, some scattered twigs and flattened areas of grass
were all that was left after I finished picking things up.
Following the removal of the downed trees, I brought in JR,
the brush mower, and mowed the entire work area. Removing the trees and mowing
the field were not necessarily required activities in my plans to convert the
area to a grassland condition. The fallen trees would quickly decompose and the
tall prairie grasses would eventually take over the site. My actions here were
in response to the need to easily access the area to locate and eliminate
invasive shrubs. Keep in mind that it’s only been a few years since this
particular patch of ground was a thicket of Multiflora Rose and Autumn Olive.
The site still harbors viable seed and is producing several new seedlings that
must be found and killed each year. Anything that interferes with my ability to
travel freely through the area in search of these invaders must be removed.
The area is planned to be grassland, but it will not be
completely free of trees. This Blackjack Oak, Quercus marilandica, currently
surrounded by the standing dead, will one day be surrounded by tall native
grasses.
This double trunked Flowering Dogwood will also be left
alive. An anthracnose outbreak nearly three decades ago eliminated this species
from the woodland understory at Blue Jay Barrens. It has still not returned to
the woods, but a few survivors along the field’s edge became the progenitors of
flowering Dogwood trees growing in the open fields. I allowed this species to
remain in certain designated areas of the fields, and now have dozens of nice
sized specimens producing copious amounts of fruit and seed each year. This
individual is doing quite nicely despite one of its trunks being disfigured by
the choking embrace of a Japanese Honeysuckle vine, yet another invasive
species needing to be controlled here.
After mowing the area, I noticed a leaning tree poised to
land directly atop the Flowering Dogwood, and a pair of grape and honeysuckle
festooned trunks similarly aiming towards the lovely oak. Not wishing the oak
or dogwood to be damaged by their menacing neighbors, I removed the threats
myself in a safe and controlled manner.
In order to facilitate invasive shrub control, I also
removed some fallen branches from the sumac patch.
The patch of Dwarf Sumac was left intact and standing dead
stems were not touched. These sumac thickets harbor their own suite of boring
beetles, leaf eaters, lichen colonies and other organisms drawn to this type of
habitat. I tried to disturb it as little as possible.
The removed wood roughly tripled the size of the brush pile
at the edge of the field. Logs were placed on the east facing side of the pile.
Skinks and fence lizards are particularly drawn to logs situated in this
manner.
Tree branches were dismantled down to individual stems which
were then piled as densely as possible. This fosters rapid decomposition, so
the pile quickly reduces in volume. The logs are stacked so that they will fall
back into the pile as the small branches decompose. It has been pointed out to
me numerous times that my brush piles do not follow the classic wildlife
management design, which has the goal of providing escape cover to game mammals.
My piles serve a broader interest and are utilized by a wide range of reptiles,
birds and mammals.
The dead trees will continue to fall for the next couple of
years. During that time, the tall prairie grasses will move in and become
established. By then the incidence of invasive shrubs should be limited to new
arrivals carried by birds as seeds from neighboring properties. For now, I’m
pleased with the way things are progressing on the site and hope that all
continues favorably.
That does look like great progress!
ReplyDeleteThanks, Stew.
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