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Full-Text Articles in Life Sciences
Factors Determining Natural Reproduction Of Longleaf Pine On Cut-Over Lands In Lasalle Parish, Louisiana, Herman H. Chapman
Factors Determining Natural Reproduction Of Longleaf Pine On Cut-Over Lands In Lasalle Parish, Louisiana, Herman H. Chapman
Yale School of the Environment Bulletin Series
The original ' pine forests, of the southern states covered from 125 to 130 million acres of land, about two-thirds of which was Longleaf pine. Four-fifths of this area had been cut over by 1920, leaving about 230 million acres, one-half of which is Longleaf pine. Of the cut-over lands, 31 million acres have not restocked. The Longleaf pine has thus been the principal tree crop on about 85 million acres of land, of which 11% million acres remained' in 1920, giving a cut-over area of nearly 73 million acres, or 114,062 square miles. This area is nearly half the …
Studies Of Connecticut Hardwoods: The Form Of Hardwoods And Volume Tables On A Form Quotient Basis, Ralph C. Hawley, Rogers G. Wheaton
Studies Of Connecticut Hardwoods: The Form Of Hardwoods And Volume Tables On A Form Quotient Basis, Ralph C. Hawley, Rogers G. Wheaton
Yale School of the Environment Bulletin Series
SATISFACTORY volume tables for Connecticut Hardwoods have been . lacking. Considering the fact that the forestry movement within the state started a quarter of a century ago, this condition may seem strange. The scarcity of large bodies of timber, the diverse mixture of species in the average stand requiring several volume tables, and the fact that timber estimating as a business is of relatively lower importance here than in the more heavily timbered regions, account for the failure to develop volume tables. Foresters working within the region have been content to estimate timber by log unit methods or to adapt …
Soil Temperature As Influenced By Forest Cover, Tsi-Tung Li
Soil Temperature As Influenced By Forest Cover, Tsi-Tung Li
Yale School of the Environment Bulletin Series
The purpose of this investigation is to study the effect of the forest on soil temperature at definite depths, expressed in terms of daily maximum and daily minimum. By forest is meant not only the trees but the surface vegetation and litter as well. Effort was made to preserve the vegetation and litter from being disturbed over the period covered by the investigation.