Relation of Soil Fertility and Rate of Growth of Mixed Oak Stands in the Driftless Area of Southwestern Wisconsin

Youngberg, C. T.; Scholz, H.

doi:10.2136/sssaj1950.036159950014000c0076x

Cited by 5 publications

(8 citation statements)

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“…This type of classical soil-site study has been criticized for both mathematical and biological reasons (Broadfoot 1969, Hodgkins 1959, Lloyd and Lemmon 1970 and is currently used much less commonly than in the past. Use of existing soil mapping units or other plant species has been helpful in distinguishing between broad classes of productivity; however, in most cases these approaches have not yielded the desired precision for estimating site quality (Harding and Baker 1983, Mader 1965, Youngberg and Scholz 1949.…”

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confidence: 99%

A method of site quality evaluation for red alder.

Harrington¹

1986

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A field guide to predict site index for red alder (Alnus rubra Bong.) was developed for use in western Washington and Oregon. The guide requires the user to evaluate 14 soil-site properties that are grouped into three general factors: (1) geographic and topographic position, (2) soil moisture and aeration during the growing season, and (3) soil fertility and physical condition. Construction of the guide was modeled after a method of site evaluation developed for several southern hardwood species. The red alder model is accurate when used properly. The correlation (r) between predicted and measured site index was 0.97 for the basic data set of 25 plots and 0.96 for the 15 plots used for verification. Estimated site index should be within ± 2 meters of measured site index 95 percent of the time. Use of a second independent data set for model verification resulted in a somewhat lower correlation (r = 0.89) between measured and predicted site index than was achieved with the original data set, but the model continued to meet the accuracy standard of ± 2 meters (p≤0.05). Abstract1 lntroduction 2 Field and Laboratory Methods 4 Model Construction 11 Model Validation

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confidence: 99%

A method of site quality evaluation for red alder.

Harrington¹

1986

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“…Woodin and Lindsey [1954] divided the pinyon-juniper type east of the continen¬ tal divide primarily upon the basis of precipitation periods. They were considered more important than temperature as determinants of vegetation differences.…”

Section: Monthly Distribution Of Precipitation Over Most Of the Provincementioning

confidence: 99%

“…In the event of future on-the-ground site evaluation,crown dia¬ meter-height relationships can be used as a cross check with tree height to make sure that the sample area is on the desired site class. This application of crown diameter association was used by Woodin and Lindsay in their study of P-J east of the Continental Divide [1954].…”

Section: Recommendation-mentioning

confidence: 99%

“…Woodin and Lindsay [1954] reported a phytosociological study of cover and density on pinyon-juniper east of the continental divide using the linestrip method.…”

Section: A Choice Of Site Factorsmentioning

confidence: 99%

“…Climate-According to Carmean [1954], Coile [1952], and Zinke [1959], foresters have made only limited use of precipitation data, and practically no use of tem¬ perature records to predict site quality, probably because of difficulties in obtaining reliable climatic data. They have preferred to measure influence of climate by variables which are dependent on precipitation.…”

Section: A Choice Of Site Factorsmentioning

confidence: 99%

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Management alternatives for pinyon-juniper woodlands : the ecology of the pinyon-juniper type of the Colorado Plateau and the basin and range provinces /

Daniel¹,

Eberhard²,

Isaacson³

et al. 1966

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Percent of soil observations as classified in the new 41 soil classification system. 3.f.l, Average composition percentage and consistency of woodland 45 tree species of the Escalante-Sevier province, and subprovince breakdown. 3.f.2, Average composition percentage, and consistency of woodland 47 tree species of the La Sal province and subprovince break¬ down. 3, f"3, Average composition percentage and consistency of woodland 49 tree, species of the Coronado province and subprovince break¬ down. 4. c.l. Pinyon sp. height/crown diameter regression formulas. 87 4. c,2. Juniper sp. height/crown diameter regression formulas.

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Soil and the Growth of Forests

Coile

1952

Advances in Agronomy

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Relation of Soil Fertility and Rate of Growth of Mixed Oak Stands in the Driftless Area of Southwestern Wisconsin

Cited by 5 publications

References 0 publications

A method of site quality evaluation for red alder.

A method of site quality evaluation for red alder.

Management alternatives for pinyon-juniper woodlands : the ecology of the pinyon-juniper type of the Colorado Plateau and the basin and range provinces /

Soil and the Growth of Forests

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