. Annual report 1953. Forests and forestry Southern States. the methods tried, resulted in an average of only 3^0 pine seedlings per acre 3 years after the harvest. This study illustrates the difficulties to he expected when young loblolly pine stands are harvested before the trees are sufficiently "well developed to provide adequate seed, and when no cultural measures are used to prepare a seedbed or control hardwood competition. Clear Cutting Raises Water Level in Flatwoods Of considerable concern to research workers in the lower Coastal Plain are the problems associated with too much w
. Annual report 1953. Forests and forestry Southern States. the methods tried, resulted in an average of only 3^0 pine seedlings per acre 3 years after the harvest. This study illustrates the difficulties to he expected when young loblolly pine stands are harvested before the trees are sufficiently "well developed to provide adequate seed, and when no cultural measures are used to prepare a seedbed or control hardwood competition. Clear Cutting Raises Water Level in Flatwoods Of considerable concern to research workers in the lower Coastal Plain are the problems associated with too much water on or near the sur- face. This excess water may be a chief cause of poor stocking in estab- lished pine stands or may explain why certain sites are taken over by less valuable species. Many people have speculated that removal of timber on low, wet sites reduces the transpiration draft and thus allows the water table to rise. A recent study in tidewater Virginia indicates that this is true. A series of ground water wells were installed on a straight line extending from the center of one clear-cut strip into other uncut, clear- cut, and selectively cut strips (fig. 9). This level area was once covered by a heavy stand of pine and hardwood timber growing on Bladen silt loam. Under the selection stand the water table was at a lower level dur- ing the growing season than in the adjacent clear-cut strip. The same effect of a timbered stand was recorded under an uncut strip of timber. At l/2-chain distance away from either timbered stand the water table was. 0 12 3 4 5 6 DISTANCE-CHAINS Figure 9.—Typical water-table profiles through different types of stands on the Bigwoods Experimental Forest. - IT -. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southeastern Forest Experiment Station (Asheville, N. C. ).
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Keywords: ., bo, bookcentury1900, booksubjectforestsandforestrysouthernstates
