. A primer on stand and forest inventory designs. Forests and forestry Mensuration; Forest surveys. Cost EstimatesâThe costs would be the same as unstratified equal probability sampling plus the cost of interpretation of aerial photos. Field costs = $2,244 Purchase aerial photos - 490 Mapping = 1,148 Interpretation 306 Total costs $4,188, or $0,274 per acre. DiscussionâThe USDI Bureau of Land Manage- ment (Baker 1982) used this technique. This technique is easier to implement than probability proportional to size (see next paragraph), but the calculations are more com- plex. Forest Boundary. F
. A primer on stand and forest inventory designs. Forests and forestry Mensuration; Forest surveys. Cost EstimatesâThe costs would be the same as unstratified equal probability sampling plus the cost of interpretation of aerial photos. Field costs = $2,244 Purchase aerial photos - 490 Mapping = 1,148 Interpretation 306 Total costs $4,188, or $0,274 per acre. DiscussionâThe USDI Bureau of Land Manage- ment (Baker 1982) used this technique. This technique is easier to implement than probability proportional to size (see next paragraph), but the calculations are more com- plex. Forest Boundary. Figure 32âMapping showing measured (*) and stratum average (s) volume (ccf) per acre based on an equal probability sample of stratified stand numbers. N â â â 0 FEET 5000 69. 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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