. The Canadian field-naturalist. WHEAT. I -J— \. / >57o OPEN SH. MSH. <57o_^ no woody c^ no woody TILLED dry Figure 3. Composite map of part of a quarter section to illustrate methods of field mapping and indexing heterogeneity. Slough types: shallow marsh, deep marsh, wet meadow, and percent open water area. Vegetation: PO I, PO II, PO III, PO IV — aspen maturity classes; Wi — willows; CN — natural clearing. Coarse dashed line, land-use boundary. Transects for indexing heterogeneity are drawn on sloughs 3 and 6. On slough 3, the N, W, S, and E transects score 3, , and 2 for 50
. The Canadian field-naturalist. WHEAT. I -J— \. / >57o OPEN SH. MSH. <57o_^ no woody c^ no woody TILLED dry Figure 3. Composite map of part of a quarter section to illustrate methods of field mapping and indexing heterogeneity. Slough types: shallow marsh, deep marsh, wet meadow, and percent open water area. Vegetation: PO I, PO II, PO III, PO IV — aspen maturity classes; Wi — willows; CN — natural clearing. Coarse dashed line, land-use boundary. Transects for indexing heterogeneity are drawn on sloughs 3 and 6. On slough 3, the N, W, S, and E transects score 3, , and 2 for 50 m out from water's edge (solid line). For slough 6 the scores are 3, 1, 1, and 2 in the same order. The heterogeneity index is 8 for slough 3, and 7 for slough 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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