. Desirables and weeds for roadside management : a northern Rocky Mountain catalogue . Roadside plants; Weeds; Plants. Map 2. Study sites in Montana and North Dakota. Open symbols enclose plot locations. Small circles contain one plot, triangles contain two plots, squares contain three plots, and large circles contain four plots. The vegetation at each site was described in terms of presence and cover. A quadrat parallel to the road was established; it was ten meters long and as wide as the surface sampled. Quadrats were typically 3- 5m wide on inslopes and 5-15m wide on backslopes. Representa
. Desirables and weeds for roadside management : a northern Rocky Mountain catalogue . Roadside plants; Weeds; Plants. Map 2. Study sites in Montana and North Dakota. Open symbols enclose plot locations. Small circles contain one plot, triangles contain two plots, squares contain three plots, and large circles contain four plots. The vegetation at each site was described in terms of presence and cover. A quadrat parallel to the road was established; it was ten meters long and as wide as the surface sampled. Quadrats were typically 3- 5m wide on inslopes and 5-15m wide on backslopes. Representative vegetation outside the plots was recorded according to European tradition (Kuchler 1967). Species present in the plots were listed. And the cover of species present in the vegetation was estimated ocularly. Because occular estimates of cover may have little absolute value, we regularly adjusted our ocular estimates to conform to estimates made by point sampling (Evans and Love 1957). Table 4. Distribution of the sites sampled among environmental types, aspect, and position. Numbers of sites representing each cell are given. Position Backslope Inslope Aspect N S E W N S E W ANSC/ mixed grass 6 6 7 6 7 7 7 6 BOGR/ shortgrass 22 19 12 12 22 25 16 13 AGSP / bunchgrass 5 6 9 9 9 8 14 14 PIPO / ponderosa 4 5 6 5 5 6 6 6 PSME / douglas fir 10 8 4 9 7 7 10 8. 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 Meier, Gretchen; Weaver, T; Montana. Dept. of Transportation. Research, Development and Technology Transfer Program; Montana State University (Bozeman, Mont. ). Dept. of Biology. [Helena] : State of Montana Dept. of Transportation ; [Springfield, VA : Available through the National Technical Information Service]
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Keywords: ., bookcentury1900, bookleafnum, booksubjectplants, booksubjectweeds
