. Research methods in ecology. Plant ecology. QUADRATS 169 the decimeter interval is small, and the centimeter square which corresponds is divided into twenty-five tiny squares. Each plant is put in whenever pos- sible, but mats, turfs, and mosses are merely outlined in mass if the individ- uals are not distinguishable. This holds true of all large rosettes and mats, even when they are single plants. Symbols were formerly used for indicat-. Fig. iS. Chart of the quadrat shown in figure 51. Legend: a, And- rosace chamaejasme; c, Carex rupestris; t, Tetraneuris lanata; p, Poten- tilla rubricauli
. Research methods in ecology. Plant ecology. QUADRATS 169 the decimeter interval is small, and the centimeter square which corresponds is divided into twenty-five tiny squares. Each plant is put in whenever pos- sible, but mats, turfs, and mosses are merely outlined in mass if the individ- uals are not distinguishable. This holds true of all large rosettes and mats, even when they are single plants. Symbols were formerly used for indicat-. Fig. iS. Chart of the quadrat shown in figure 51. Legend: a, And- rosace chamaejasme; c, Carex rupestris; t, Tetraneuris lanata; p, Poten- tilla rubricaulis; as, Arenaria sajanensis; ar, Artemisia scopulorum; ag, Agropyrum scribneri; sa, Silene acaulis; st, Sieversia turbinata; d, Dasyphora fruticosa; al. Allium reticulatum; o, Oreoxis alpina. ing the various species. They have the advantage of requiring little space on the chart, and the disadvantage of necessitating constant reference to the legend. They are at present replaced by initials. By this plan, the decap- italized first letter of the generic name is used if no other genus found in the quadrat begins with the same letter. If, however, two or more genera begin with a, for example Agropyrum, Anemone, and Allium, the most abundant. 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 Clements, Frederic E. (Frederic Edward), 1874-1945. Lincoln, Neb. , University Pub. Co.
Size: 1585px × 1577px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectplantec, bookyear1905
