Treesearch

Several herbicides -- glyphosate (Roundup), Linuron (Lorox), pronamide (Kerb), and dichlobenil (Casoron) -- controlled weeds in a 1-year-old Populus plantation and did not seriously injure the trees when applied in early spring or late fall. Casoron was most effective but is expensive.

Live tree biomass estimates in green tons and shrub biomass estimates in pounds per acer are presented for Michigan.

Public and private forest managers in Minnesota feel they need better information in such areas as supply and demand, timber growth projections, and reforestation. Needs varied by agency and level of management.

There are many disadvantages to current techniques for measuring the spread rate of wildland fires. This paper describes the design and use of an electronic timber that resolves most of the problems. The unit is small, lightweight, inexpensive, easy-to-assemble, self-contained, and long-running.

Provides a view of management opportunities of eastern South Dakota commercial forest land during the decade 1980-1989. Discusses harvest, timber stand improvement, and restocking opportunities.

The third forest inventory of Kansas shows a growing-stock volume of 711.3 million cubic feet and a sawtimber volume of 2,566.2 million board feet in 1981. Hardwoods make up over 99 percent of these totals.

Lake States pulpwood production dipped to 5.52 million cords in 1982. Pulpwood production is shown by county and species group in Michigan, Minnesota, and Wisconsin

Water vapor and CO2 exchange characteristics were studied in Phoradendron villosum, a hemiparasitic mistletoe and its host, Quercus lobata. The hemiparasite had stomatal conductances equal to or higher than the host but a much lower capacity to fix carbon. Respiration was high in the mistletoe relative to maximum photosynthesis because of the high leaf specific weight (weight per unit area) in this species. The temperature optima for photosynthesis were similar in both species although photosynthesis in Phoradendron declined more steeply below 20 degrees C. Consequences of the high...

Compares rates of forest floor decomposition and nutrient turnover in aspen and conifers. These rates were generally most rapid under aspen, slowest under spruce, and more rapid on a loamy fine sand than on a very fine sandy loam. Compares results with literature values.