. Improving productivity on forests and rangelands : 1980 research accomplishments. Forest management United States; Range management United States; Forests and forestry Research United States; Rangelands Research United States; Forest management United States Bibliography; Range management United States Bibliography. TIMBER MANAGEMENT Short rotation, intensive culture (SRIC) of fast-growing poplars could help the forest products industry solve the problem of a dwindling land base. Wood produced from SRIC plantations is also suitable for conversion to energy and many useful chemicals. Research
. Improving productivity on forests and rangelands : 1980 research accomplishments. Forest management United States; Range management United States; Forests and forestry Research United States; Rangelands Research United States; Forest management United States Bibliography; Range management United States Bibliography. TIMBER MANAGEMENT Short rotation, intensive culture (SRIC) of fast-growing poplars could help the forest products industry solve the problem of a dwindling land base. Wood produced from SRIC plantations is also suitable for conversion to energy and many useful chemicals. Research at the North Central Forest Experiment Station shows that yields three to four times that of natural, unmanaged forests can be obtained from hybrid poplars planted in cultivated, fertilized, and irrigated plantations. Such a system is energy efficient, with an energy output/input ratio for the harvested and chipped poplar of Research on genetic improvement of poplars at the North Central and Southern Forest Experiment Stations shows that wood quality and yields can be enhanced. For example, important properties such as color, specific gravity, fiber length, and fiber-vessel ratio can be tailored for a specific mill and location by carefully selecting particular hybrids. Eight new selections for the Mississippi Delta show greatly increased growth compared with existing, improved eastern cottonwood strains. These superior strains will be produced in several State forest nurseries for public distribution. About 13 million acres, mostly marginal farm land, are available in the northern one-third of the Lake States for short rotation, intensive culture of hybrid poplars. Additional land is suitable for planting fast-growing eastern cottonwood strains in the Mississippi Delta region. FAST-GROWING POPLARS FOR FIBER AND ENERGY. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of
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