. CLIMACS : a computer model of forest stand development for western Oregon and Washington. Forests and forestry Oregon Data processing; Forests and forestry Washington (State) Data processing. Table 11—Parameter values for moisture index1 Moisture a b Species Dry -10 5 Abies grandis, Arbutus menziesii, Acer macrophyllum, Castanopsis chrysophyl 1 a, Libocedrus decurrens, Pinus contorta, P. lambertiana, P. ponderosa, Pseudotsuga menziesii, Quercus garryana Intermediate -8 1 Abies amabilis, A. lasiocarpa, A. procera, Picea engelmannii, Pinus monticola, Thuja plicata, Tsuga heterophylla, T. merte
. CLIMACS : a computer model of forest stand development for western Oregon and Washington. Forests and forestry Oregon Data processing; Forests and forestry Washington (State) Data processing. Table 11—Parameter values for moisture index1 Moisture a b Species Dry -10 5 Abies grandis, Arbutus menziesii, Acer macrophyllum, Castanopsis chrysophyl 1 a, Libocedrus decurrens, Pinus contorta, P. lambertiana, P. ponderosa, Pseudotsuga menziesii, Quercus garryana Intermediate -8 1 Abies amabilis, A. lasiocarpa, A. procera, Picea engelmannii, Pinus monticola, Thuja plicata, Tsuga heterophylla, T. mertensiana Moi st -2 0 Alnus rubra, Chamaecyparis nootkatensis, Picea sitchensis Ifhe parameters, a and b, are explained in the text. According to the model, dry site species have a high value of WATDEX for most values of PMS (see fig. 8). Intermediate site species, such as Tsuga heterophylla, grow only at lower PMS values, and the wet site species, such as Picea sitchensis, have a positive value of WATDEX only at very low values of 0. 0 Plant moisture stress (-bars) Figure 8.—The effect of plant moisture stress upon diameter increment. 19. 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 Dale, Virginia H; Hemstrom, Miles A; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). Portland, Or. : U. S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
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