. A primer on stand and forest inventory designs. Forests and forestry Mensuration; Forest surveys. Discussion—The Northern (Brickell 1984), Rocky Mountain (Mehl 1984), Intermountain (Myers 1984) and California Regions (Bowlin 1984) use this type of inven- tory design. As an alternative to a grid, Lund (1978b) uses accumulated acres within stands and strata. Stage (1971) provides a similar technique using a sorted list. The end result is nearly the same. The forest is systematically sampled; however, sorting the list assures that the sample will include a range of values for the auxiliary vari
. A primer on stand and forest inventory designs. Forests and forestry Mensuration; Forest surveys. Discussion—The Northern (Brickell 1984), Rocky Mountain (Mehl 1984), Intermountain (Myers 1984) and California Regions (Bowlin 1984) use this type of inven- tory design. As an alternative to a grid, Lund (1978b) uses accumulated acres within stands and strata. Stage (1971) provides a similar technique using a sorted list. The end result is nearly the same. The forest is systematically sampled; however, sorting the list assures that the sample will include a range of values for the auxiliary variable that approximates that for the population, an advantage that may well be needed if small numbers of plots are to be sampled. In both cases, the stratum and stands having the largest area have the higher probability of being sampled. Inventories Using Existing Stand Information In practice, some stand data may already exist from previous examinations or timber cruises. In such in- stances, provided the data are current and unbiased, the existing information may be used in addition to establish- ing new plots. Assume data exist for stands 2, 10, 16, 28, 30, 33, 36, 53, 67, 70, 91, 97, 124, 129, 152, 166, 1 75, 188, and 200, as shown in figure 35. Forest Boundary. Figure 35—Location of stands previously measured (stands with bold ^} Conlter boundaries) in the Enchanted Forest. ? Hardwood ? Brush/Open 73. 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 Lund, H. Gyde; Thomas, Charles E. (Charles Eugene), 1940-; United States. Forest Service. [Washington, D. C. ?] : U. S. Dept. of Agriculture, Forest Service
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