Physical Sciences and Mathematics Commons^™

Waterlogging Limits Growth On Duplex Soils, Bob Belford, Miles Dracup, David Tennant

Journal of the Department of Agriculture, Western Australia, Series 4

Duplex soils - soils with a sandy topsoil overlying a clayey subsoil -are ividespread in Western Australia's agricultural areas (see map). These soils are potentially highly productive, but crop growth is variable and the soils can become waterlogged. Work on a duplex soil site near Beverley has shoivn that the soil ivaterlogs where the permeability of the clay is low, and that this permeability varies ividely over the site. Waterlogging accounts for an average of half of the variation in wheat yields on this site; surprisingly, lupins have so far appeared less sensitive to waterlogging- The Department of Agriculture and …

Seepage Interceptor Drains For Reducing Waterlogging And Salinity, Don Mcfarlane, Jim Cox

Journal of the Department of Agriculture, Western Australia, Series 4

Shallow interceptor drains can reduce waterlogging on sloping sites. Such drains will more than pay for themselves from the increased crop yield. Recent work has shown that these drains also decrease salinity so that they are cost-effective in the long as well as the short term.

Shallow Drains For Reducing Waterlogging And Salinity On Clay Flats, Don Mcfarlane, Tim Negus, Arjen Ryder

Journal of the Department of Agriculture, Western Australia, Series 4

Flooding, waterlogging and salinity are problems which commonly occur together on the broad valleys of the wheatbelt. Drainage lines often become poorly defined once they reach the valleys and flood waters spread out, causing inundation and waterlogging. This excess water needs to be controlled because it contributes to salinity

Level Banks Used To Decrease Waterlogging Can Increase Salinity, Don Mcfarlane, Richard Engel, Arjen Ryder, Maurice Eales

Journal of the Department of Agriculture, Western Australia, Series 4

Some farmers have used level W1SALTS banks to control surface zvaters above areas affected by ivaterlogging and salinity. Because the amount of waterlogging has been reduced, crop yields have increased downslope of some banks. However, the banks divert fresh surface water into deeper salty groundwater and, in the long term, worsen salinity. This article details an investigation of the effect of level WIS ALTS banks on saline groundwaters and discusses alternative methods of preventing the waterlogging of saline areas.

Integrated Control Of Soil Insect Pests Of Potatoes, Stewart Learmonth, John Matthiesson

Journal of the Department of Agriculture, Western Australia, Series 4

One of the more difficult aspects of growing potatoes in Western Australia is controlling soil insect pests. These pests have become more troublesome because the highly effective and persistent organochlorine insecticides previously used to control the main soil pests, African black beetle and whitefringed weevil, were deregistered for agricultural use in 1987. Entomologists from the Department of Agriculture and CSIRO in Western Australia are collaborating to develop new management strategies for these pests that rely less on the use of chemical insecticides

The 1989 Saltland Survey, Richard George

Journal of the Department of Agriculture, Western Australia, Series 4

In March 1989, the Australian Bureau of Statistics (ABS) surveyed farmers in Western Australia to determine the area of previously arable land that was now too saline for conventional agriculture. Farmers reported that 443,441 ha, or 2.83 per cent, of the 15.7 million hectares of cleared farm land in south-western Australia, was saline. This was an increase of about 180,000 ha on the 1979 survey figure.

The worst affected areas were in the 350 mm to 600 mm rainfall zone and included the Shires of Tammin (9.26 per cent arable area saline), Katanning (7.96 per cent), Goomalling (7.93 per cent), …

Olmos Park And The Creation Of A Suburban Bastion, Char Miller, Heywood T. Sanders

Pomona Faculty Publications and Research

An examination of this small Texas community will also cast light on the larger world of which it was a part. The development of Olmos Park, then, was inextricably bound up with and reflective of the political machinations and social problems that dominated San Antonio in the first decades of this century. As Mauerman understood, the suburb was a fragment of the urban whole, an observation that needs to be pushed one step farther. The forces that shaped Olmos Park and determined its relations with San Antonio were also part of a national pattern, of tensions generated by the explosive …

The Rise Of Urban Texas, Char Miller, David R. Johnson

Pomona Faculty Publications and Research

Texas contains three of the nation's ten largest cities, but their existence has not yet affected the hold that the state's rural heritage has on Texas' imagination--or so Texans' attachment to two nineteenth-century cultural landmarks, the Alamo and the Chisholm Trail, would suggest. As the shrine of Texas liberty, the Alamo continually generates elegies to the manly courage and bravery of the fallen heroes of 1836.

Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 4. Kitto's Hillslope, Tammin - 1985-90, Richard J. George Dr

Resource management technical reports

The investigation revealed that a deep, brackish to saline groundwater system and dolerite dyke, contained within the saprolite were responsible for the secondary salinity; the annual discharge of water and salt at the seep from the damp groundwater system was about 2800 kL and 17 tonnes respectively; and the water-tables were not rising and that the most appropriate management of the site was to plant salt tolerant forage plants in combination with trees.

Preliminary Groundwater And Salinity Investigation In The Eastern Wheatbelt. 1. Brennand's Catchment, Richard J. George Dr, P W C Frantom

Resource management technical reports

Groundwaters were found to be 10 m below the floor of the ancestral playa lake in Brennand's catchment. They were extremely saline. A groundwater flow system was not established on much of the catchment. Flow was observed to be occurring from recharge areas near the playa lakes towards the midslopes of the catchment. Flow was apparently restricted from leaving Brennand's catchment because of obstruction to groundwaters created by dolerite dykes.

Jerdacuttup Land Resource And Capability Study, Geoff Allan Moore, S T. Gee, D Vincent

Resource management technical reports

The Jerdacuttup catchment on the south coast of Western Australia has a number of significant land degradation problems. A soil-landform map of the catchment was produced at a scale of 1:50,000. The map units are a combination of landform and soil type. A land capability assessment was undertaken for five land uses; improved annual pastures, perennial pastures, lucerne, cereal cropping and lupins, using a five class classification.

Busselton - Margaret River - Augusta Land Capability Study : Methodology And Results, Peter J. Tille, Neil Clifton Lantzke

Resource management technical reports

A land unit map of the region has been prepared at a scale of 1:50,000. Additional maps of climate, surface and groundwater supplies and existing land use have also been prepared at smaller scales. The capability of each of the land units to support grazing, market gardens, vineyards, orchards and forestry has been assessed. The limitations for housing on small rural lots have also been evaluated. Describes the methods by which the survey was undertakenand will be primary of use to the technical user.

Geraldton Rural-Residential Land Capability Study, R A. Dye, A M E Van Vreeswyk, Geoff Allan Moore

Land resources series

With a growing population in the Geraldton area, there is a demand for rural and coastal subdivision to provide for rural residential development and intensification of agricultural activities. Future land use planning for land use change and management of land to overcome existing land degradation problems should be based on land capability. This study provides a semi-detailed (1:50,000) soil and landform inventory for the immediate zone around Geraldton, south from Coronation Beach to Cape Burney along the coast, 13.7 km inland in the north and 7.6 km inland in the south. Eight land systems were identified in the land resource …

Darling Range Rural Land Capability Study, Peter Donald King, M R. Wells

Land resources series

This report presents land resource mapping and land capability assessments for rural residential and associated agricultural activities at a scale of 1:50,000 over 100,000 ha of rural land in Perth's eastern metropolitan hills area. The study area is bounded to the west by the Great Northern, Albany, Roe and South Western highways, and extends north, east and south to the boundary of the Perth metropolitan area. Using the broad framework of landform-soil associations defined by Churchward and McArthur (1980), discrete mapping units have been delineated by reference to landform and soil characteristics likely to affect future land uses. They provide …

Floristic Survey Of Remnant Vegetation In The Dandaragan Area, Western Australia, Edward Arnold Griffin

Resource management technical reports

A study involving the documentation of the extent and floristic composition of patches of native vegetation left uncleared by agricultural development is described. Floristic regions were defined in the study area by detailed analysis of the floristic data. The concentration of the major conservation reserves in only a few of these regions left the floristic variation of most of these regions poorly represented conservation reserves. About 13 percent of the private property remains uncleared.

An Introduction To The Soils Of The Esperance Advisory District, T C. Stoneman, Tim D. Overheu, P G. Muller, National Soil Conservation Program (Australia)

Bulletins 4000 -

With descriptions, illustrations and notes on seven common soils.

Spacing Water Points In The Southern Pastoral Areas Of Western Australia, Don Burnside, Adrian Williams, Peter Curry

Bulletins 4000 -

An inadequate distribution of watering points in our pastoral lands, particularly in the saltbush/bluebush pasture, has caused localisized land degradation close to waters and reduced animal productivity (particularly in stressful times). From experimentation and observation, some generalised recommendations for water supply distribution in pastoral areas can be made.

An Introduction To The Soils Of The Albany Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)

Bulletins 4000 -

With description, illustrations and notes on eight common soils.

An Introduction To The Soils Of The Geraldton Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)

Bulletins 4000 -

With descriptions, illustrations and notes on eight common soils.

Analysis Of Organic Pollutants In Sediments And Blue Crab (Callinectes Sapidus) Tissues : Final Report To Virginia State Water Control Board, John Greaves

Reports

The Elizabeth River is a highly industrialized waterway that divides the cities of Norfolk and Portsmouth at its confluence with the lower Chesapeake Bay. It is home to the largest Naval base on the East Coast, numerous ship repair facilities, bulk and containerized cargo facilities, industrial and urban activities and wood creosoting (preserving) operations (all except one have been abandoned). This degree of industrialization has resulted in the pollution of the river, with high concentrations of polynuclear aromatic hydrocarbons (PAH, Bieri et al., 1986). A major contributor to the pollution problem has been the wood processing industry which, due to …

Dissolved Oxygen Conditions In The Machipongo River System Near Willis Wharf, Va, Bruce Neilson, Nancy Wilson

Reports

Water temperature, salinity, and dissolved oxygen concentrations were monitored at two sites in the Machipongo River system in early summer of 1989 and late summer of 1990. The two study sites have been designated as "Willis Wharf" and "Quinby." The Machipongo River system and the two sampling locations are shown in Figure 1.

Development Of Mountain Climate Generator And Snowpack Model For Erosion Predictions In The Western United States Using Wepp, Reserach Completion Report For Phase Ii, David S. Bowles, Gail E. Bingham, Upmanu Lall, David G. Tarboton, Mohammed Al Adhami, Donald T. Jensen, Greg D. Mccurdy

Reports

Executive Summary: This report summarizes work conducted during the funding period (July 1 through September 30, 1990) of a Cooperative Agreement between the United States Forest Service (USFS) and the Utah Water Research Laboratory (UWRL), Utah State University. The purpose of the agreement is to develop a Western Mountain Climate Generator (MCLIGEN) similar in function to the existing Climate Generator (CLIGEN), which is part of the Water Erosion Prediction Project (WEPP) procedure. Also, we are developing a Western U.S. snowpack simulation model for inclusion in WEPP. In the Western U.S., few meteorological observations exist in high elecation areas where Forest …

Development Of Mountain Climate Generator And Snowpack Model For Erosion Predictions In The Western United States Using Wepp, Progress Report No. 2, David S. Bowles, Gail E. Bingham, Upmanu Lall, David G. Tarboton, Mohammed Al Adhami, Donald T. Jensen, Greg D. Mccurdy

Reports

Executive Summary: This report summarizes work conducted during the funding period (July 1 through September 30, 1990) of a Cooperative Agreement between the United States Forest Service (USFS) and the Utah Water Research Laboratory (UWRL), Utah State University. The purpose of the agreement is to develop a Western Mountain Climate Generator (MCLIGEN) similar in function to the existing Climate Generator (CLIGEN), which is part of the Water Erosion Prediction Project (WEPP) procedure. Also, we are developing a Western U.S. snowpack simulation model for inclusion in WEPP. In the Western U.S., few meteorological observations exist in high elevation areas where Forest …

Development Of Mountain Climate Generator And Snowpack Model For Erosion Predictions In The Western United States Using Wepp, Progress Report No. 1, David S. Bowles, Gail E. Bingham, Upmanu Lall, David L. Martens, Greg D. Mccurdy, David G. Tarboton

Reports

Executive Summary: This report summarizes work conducted during the initial funding period (November 1, 1989 through June 30, 1990) of a Cooperative Agreement between the United States Forest Service (USFS) and the Utah Water Research Laboratory (UWRL), Utah State University. The purpose of the agreement is to develop a procedure for incorporating western mountain climate into the existing Climate Generator (CLIGEN), which is part of the Water Erosion Prediction Project (WEPP) procedure. In the Western U.S., few meteorological observations exist in high elevation areas where Forest Service properties are located. Therefore, a procedure for estimating climatological variables in mountainous areas …

A Mark-Recapture Study Of Striped Bass In The James River, Virginia : Annual Report 1989, Joseph G. Loesch, Bruce W. Hill

Reports

No abstract provided.

Notes On Venezuelan Conservation, Aldemaro Romero Jr.

Publications and Research

No abstract provided.

An Introduction To The Soils Of The Three Springs Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)

Bulletins 4000 -

With descriptions, illustrations and notes on seven common soils.

An Introduction To The Soils Of The Moora Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)

Bulletins 4000 -

With descriptions, illustrations and notes on eight common soils.

An Introduction To The Soils Of The Lake Grace Advisory District, T C. Stoneman, National Soil Conservation Program (Australia)

Bulletins 4000 -

With descriptions, illustrations and notes on eight common soils.

Aspen Environmental Consultants, Inc; Report Of Tests: Preliminary Evaluation Of Three Erosion Control Products, Gilberto Urroz, C. Earl Israelsen

Reports

Introduction: Controlling the erosion of soil is a growing concern in the developed countries of the world, and continuing attempts are being made to develop new and better erosion control products. Only by careful comparative testing of such products under similar conditions is it possible to determine their relative merits. in the test facility at the Utah Water Research Laboratory (UWRL), the variables of wind, sunlight, soil, hillslope, and rainfall rate and duration can all be independently controlled, thus providing an ideal location for determining the actual effectiveness or various kinds of erosion control products. Aspen Environmental Constultants, Inc. contracted …