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Thursday, October 22, 2020 | History

1 edition of Seasonal variation of infiltration capacities of soils in western Oregon found in the catalog.

Seasonal variation of infiltration capacities of soils in western Oregon

Michael G. Johnson

Seasonal variation of infiltration capacities of soils in western Oregon

by Michael G. Johnson

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Published by U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station in Portland, Or.?] .
Written in English

    Subjects:
  • Soil percolation

  • Edition Notes

    StatementMichael G. Johnson and Robert L. Beschta
    SeriesResearch note PNW -- 373, Research note PNW -- 373.
    ContributionsBeschta, Robert L., Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    The Physical Object
    Pagination8 p. :
    ID Numbers
    Open LibraryOL25593678M
    OCLC/WorldCa8172826

    Selected papers from the Low Impact Development Conference, held in Philadelphia, Pennsylvania, September , Sponsored by the Low Impact Development Committee of the Urban Water Resources Research Council of the Environmental and Water Resources Institute of ASCE As federal, state, and local governments realize that traditional approaches to stormwater management are not. or soils with moderately fine to fine texture. Group D soils have a high runoff potential and very slow infiltration rate when thoroughly wetted. Group D soils include clay soils with high swelling potential, soils in a permanent high water table and shallow soils over nearly impervious Size: 34KB.

    APPENDIX 6 Soils with Greatest Potential Use for Infiltration 1 Appendix 6: Soils with Greatest Potential Use for Infiltration The following is a list of Ohio soil map units that have the optimum soil characteristics for infiltration. These soils have a natural drainage class that File Size: KB. Soil quality and the changes in soil quality that occur with soil management can be expected to affect natural resource models. For example, consider the Water Erosion Prediction Project (WEPP) model (Laflen et al., a,b), in which soil quality is assumed to affect both the water infiltration and the soil erosion portions of the model.

    SOILS OF THE WESTERN UNITED STATES. (Exclusive of Hawaii and Alaska) [(Washington State University)] on *FREE* shipping on qualifying offers. SOILS OF THE WESTERN UNITED STATES. (Exclusive of Hawaii and Alaska)Author: (Washington State University). 1. Introduction. Water infiltration into agricultural soils is impacted, among other factors, by the number and connectivity of surface-vented macropores (Ehlers, ).Characteristics and properties of the macropore network and other soil hydraulic parameters are influenced by the tillage practice (Edwards, ).Conventional tillage systems involve plowing and harrowing of the topsoil, while Cited by:


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Seasonal variation of infiltration capacities of soils in western Oregon by Michael G. Johnson Download PDF EPUB FB2

Seasonal Variation of Infiltration Capacities of Soils in Western Oregon Michael G. Johnson and Robert L. Beschta Abstract Infiltration capacities were 50 percent greater during fall than during summer for forest soils of western Oregon. These results contrast with those measured in other studies.

In forested areas, investigators should be Cited by: 5. Get this from a library. Seasonal variation of infiltration capacities of soils in western Oregon. [Michael G Johnson; Robert L Beschta; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)].

Seasonal variation of infiltration capacity and runoff on hillslopes in western Colorado Hillslope erosion was studied during 4 years along 25 slope profiles on Mancos shale hillslopes in western Colorado.

fall, reflecting the seasonal changes of soil characteristics. Therefore, seasonal changes in the soil, which cause a seasonal Cited by: tains of western Oregon, infiltration capacities (the rate at which rain or melted snow enters a thoroughly wetted soil) are high, usually exceeding precipitation rates.

Overland flow. therefore is uncommon (Rothacher et al. ; Harr). Logging ac-tivities, however, often alter the soil surface and re-duce infiltration capacities. An Oregon statewide list of Prime soils and codes has been updated from a list.

The list reflects current NASIS data and Web Soil Survey reports. National references, definitions and Oregon specific rules for determining Prime Farmland Soil map units are included in the document.

Published Soil Surveys for Oregon. Current, official soil survey information is on the Web Soil Survey. The Web Soil Survey allows you to create custom reports by selecting a specific area of interest.

In the table below, clicking on a survey area that is listed as "current" takes you to the Web Soil Survey. Historical and supplemental. Research Article INFILTRATION STUDIES OF DIFFERENT SOILS UNDER DIFFERENT SOIL CONDITIONS AND COMPARISON OF INFILTRATION MODELS WITH FIELD DATA Jagdale Satyawan Dagadu 1, Nimbalkar P.

T.2 Address for Correspondence 1 Student Civil (Hydraulic Engineering), 2 Professor, Department of Civil Engineering,File Size: KB. Study of Infiltration Capacity of Different Soils O Sarva Mangala, Pratibha Toppo and Shraddha Ghoshal Civil Engineering Department, Shri Shankaracharya Group of Institution (FET), Bhilai, Chhattisgarh, India Abstract: Infiltration is a process that continuously affects File Size: KB.

infiltration rate (f) and time (t) since infiltration started were variation of infiltration rate with changes in the soil texture, with a particular reference to the soil fine fraction. Specifically it is to: Determine a model that can be used to estimate the infiltration rate of a soil at any seasonal stream that flows through Cited by: 1.

Seasonal variation in soil pH The season in which soil is sampled affects observed pH. West of the Cascades, seasonal variation of soil pH is associated with wetting and drying cycles. The highest soil pH (least acidity) is measured in late winter and early spring, prior to fertilizer applica-tion, increased microbial activity, and soil drying.

The "Red Hill" Soils of Western Oregon By C. RUZEE and W. PowFs THE hill soils of Western Oregon are known locally as the 'red hill" soils and occupy extensive areas of the Cascade and the Coast ranges. They are residual soils developed on consolidated rock material and may be classified broadly into two groups, those derived from basic.

The Ks of the predominant sand loam soils exhibited high values because most of the clay content had been washed down through leaching and excess infiltration from the surface beyond the hydrological zone of soils.

Studies have shown that, clay content in soil layers stabilizes infiltration rate of soils (Glenn, Delmar, Williams and Richard (). Oregon Pinot Camp Part 1: Geological History of the Willamette Valley Illustration: Willamette Valley soils map in the Reference section Until about 12 million years ago, Western Oregon was on the floor of the Pacific Ocean.

Before that, for 35 million years under the sea, it was slowly accumulating layers of marine sediment,File Size: 1MB. Stormwater Management in Western Washington Volume III Hydrologic Analysis and Flow Control Design/BMPs Prepared by: Washington State Department of Ecology Water Quality Program February Publication No.

(A revision of Publication No. The Green and Ampt infiltration equation (equation #I) was fitted to f versus 1 /F pairs for each infiltration run by least squares regression.

The fitted curve was then used to determine the time to ponding. Using the standard equation of a line Y = mX + b where m. Infiltration dynamics under various rangeland treatments on uniform sandy-loam soils in southeastern Utah. Hydrol., Studies were made, over a 3- to 8-yr.

period, of mean seasonal and yearly changes in in- filtration rates under various rangeland management practices within the pinyon--juniper (Pinus sppJuniperus spp.) by: 4. Recommended Citation. Stothoff, S.A., D. Or, D.P. Groeneveld, and S.B. Jones.

The effect of vegetation on infiltration in shallow soils underlain by fissured Cited by: You found the Oregon Society of Soil Scientists. Our beloved, “O triple S” is the Oregon Society of Soil Scientists. This is an organization of soil scientists and aspiring soil scientists who want to stay connected to the vast variety of other soil scientists and fields of soils work in our region.

Infiltration capacities were 50 percent greater during fall than during summer for forest soils of western Oregon. These results contrast with those measured in other studies. Spatial and Temporal Influence of Soil Frost on Infiltration and Erosion of Sagebrush Rangelands capacity and interrill erosion of the coppice and inter- space soils for the different sample dates.

more protective cover than do soils that have low inherent erodibility. The quantitative effects of cer- tain soil properties on infiltration and soil erosion have been pre- sented by Packer () for the Gallatin elk winter range in south- western Montana, by Dortignac and Love () for ponderosa pine.EROSION & SEDIMENTATION FOLLOWING ROAD CONSTRUCTIONS & TIMBER HARVEST ON UNSTABLE SOILS IN THREE SMALL WESTERN OREGON WATERSHEDS [R.L.

Fredriksen] on *FREE* shipping on qualifying : R.L. Fredriksen.Warning: The Construction Stormwater Permit prohibits infiltration of stormwater runoff “within 1, feet up-gradient or feet down-gradient of active karst features”.

Active karst is a terrain having distinctive landforms and hydrology created primarily from the dissolution of .