Hoosier National Forest - Clover Lick Barrens
Clover Lick Barrens is located in Perry County, Indiana, on the Hoosier National Forest. A vicinity map below shows the general location of the area.
Geologically, this part of Indiana is at the contact zone of the Pennsylvanian and Mississippian formations. The Pennsylvania-age sandstone caps the area and forms small cliffs. The Mississippian formations are of sandstone, shale and limestone, with few outcrops. These markedly different types of bedrock create conditions favorable for the diverse national communities at Clover Lick. Forests on the sandstones are typically chestnut oak on ridgetops, and other species of oaks and hickory on slopes. The shales and limestones support post oak and blackjack oak, and where more open, have an understory of prairie plants.
Like all the national forests in the eastern United States, the area was previously in private ownership as farmland, and has been reacquired by the federal government. Land in the vicinity of Clover Lick was acquired beginning in 1936, some of the first tracts to be included in the Hoosier. Ownership of the area was consolidated by the government in 1972, when the last of over two dozen tracts were purchased.
The forest cover has gradually returned over time, and with the exception of pine being planted in areas that were seriously eroded, most of the forest reflects the same species that were there in pre-European settlement times. The number and diversity of prairie plants in the barrens area however, indicate that the area was likely more open in earlier times. Surveyor notes from 1805, recorded a description of the area as "a mile of poor barrens and grassy hills, with much flint and a few scrub oaks."
The special ecology of the barrens community in the Clover Lick watershed was first noted during the natural areas inventory of Indiana in 1987. Noteworthy areas of prairie grasses and forbs were found under the open canopy of post oak and blackjack oak in this area of predominantly white and black oak. Closer inspection of the sites yielded several prairie species considered rare in the state. Because of the significance of the barrens and its rate plants, Clover Lick Barrens was established as a special area in the 1991 Hoosier National Forest Plan.
After years of fire suppression, the quality of the natural communities in this watershed had been deteriorating. The understory trees had become so dense that little light filtered down to the forest floor. This increased the humidity and stressed the rare prairie-adapted plants, which impacted the area's diversity.
To begin restoring the vigor of the ecosystem, a landscape-scale prescribed fire was recommended. A 2,300-acre landscape, including Clover Lick Barrens, was burned in early April 1993. Seven miles of fire control lines were "constructed" using leaf blowers and rakes to contain the burn area.
The burn blackened about 70 percent of the 2,300 acres. Most of the fuel was accumulated leaf litter. Scorch marks on three trunks were mostly less than a foot high, but occasionally reached as high as 10 feet. The fire burn did not burn hot enough anywhere to kill more than a few isolated overstory trees. It did reduce the shade by topkilling small (two-inch diameter or less) understory trees. This allowed the site to dry out by increasing the sunlight and airflow on the forest floor. Since the burn, the herbs in the understory have made a remarkable recovery. In one area, Indian grass, which had been about five feet tall before the fire, grew to nearly eight feet the year after.
Interestingly, the same results were found in invertebrate, mammal, and bird populations. Populations have soared in the area of the burn where more nutrients and a larger food base is now available.
The results following the second burn of this area conducted in April of 1995 have been equally dramatic. The second burn was more complete and more uniform with very low scorch marks. Flowering of forbs in the forest and barrens has been profuse and much of the forest floor is now covered with dense vegetation.
In 1972, Indiana lacked a viable wild turkey population. The Forest, in cooperation with Indiana Department of Natural Resources, established a 6,000 acre area around Clover Lick to re-introduce wild turkey. This area, known as the Mogan Ridge Turkey Management Area was fenced and closed to hunting until a viable turkey population was established. Six years later, a limited hunting season was opened.
Wildlife is still prevalent in this relatively remote area of the Forest. A limited road system exist, but is kept closed for most of the year. Hiking/horseback trails weave through the area, but a thriving population of ticks in the area limit the number of visitors to the barrens.
For more information, contact:
|Forest Supervisor's Office and
Brownstown Ranger District Office
Hoosier National Forest
811 Constitution Avenue
Bedford, IN 47421
|Tell City Ranger District Office
248 15th Street
Tell City, IN 47586