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1989

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Full-Text Articles in Earth Sciences

Significant Bedrock Features Of The Maine Coast : Boothbay To Calais, Carol White, A. M. Hussey Ii Sep 1989

Significant Bedrock Features Of The Maine Coast : Boothbay To Calais, Carol White, A. M. Hussey Ii

Maine Collection

Significant Bedrock Features of the Maine Coast : Boothbay to Calais

Carol White and A.M.Hussey II

Planning Report # 85

A Report Prepared for the Maine Critical Areas Program, Maine State Planning Office, 184 State Street, Augusta, Maine 04333 (September 1989).

Contents: Introduction / Types of Significant Features / Description and Interpretation of Geologic Features / Overview of the Geology of Coastal Maine / Criteria for Significant Geological Localities / Inventory Methods / Area Descriptions / Site Descriptions / Conclusions and Recommendations / References


Forage Shrubs And Grasses For Revegetating Saltland, H V. Runciman, C V. Malcolm Aug 1989

Forage Shrubs And Grasses For Revegetating Saltland, H V. Runciman, C V. Malcolm

Bulletins 4000 -

Salt tolerant shrubs and grasses are used for forage production from salt-affected farmland. This Bulletin is designed to assist in recognition of the important species in Western Australia and to provide information on their use. The species listed have more forage value than some natural indicators and colonizers of saltland, such as Mediterranean barley grass (Hordeum geniculatum), ice plant (Mesembryanthemum spp.), mallee lovegrass (Eragrostisdielsii), salt spurry (Spergularia spp.), curly ryegrass (Parapholis incurva) and beard grass (Polypogon monspeliensis). Some of the plants are also useful for rehabilitating degraded rangeland and mine …


Tb136: Methodology Development For Study Of Root Influences On Nitrogen Mineralization, M. S. Erich Jun 1989

Tb136: Methodology Development For Study Of Root Influences On Nitrogen Mineralization, M. S. Erich

Technical Bulletins

The current study was designed to explore a particular set of methodologies for addressing the question of whether plant root growth affects the rate of N mineralization. Specifically, the experimental design involved supplying plants with only organic N as manure and no nitrate. A highly sandy growing medium was used in an attempt to prevent overly wet conditions in the pots. In addition, instead of only comparing planted and unplanted pots, four different planting densities (0, 1, 2, 3 plants per pot ) were used as treatments.


Tb134: A Laboratory Study To Assess Methods For Predicting Ph Change Of Ash Amended Forest Soils, Yvonne L. Unger, Ivan J. Fernandez Feb 1989

Tb134: A Laboratory Study To Assess Methods For Predicting Ph Change Of Ash Amended Forest Soils, Yvonne L. Unger, Ivan J. Fernandez

Technical Bulletins

The objective of this study was to compare several commonly used lime requirement tests and soil capacity factors for their ability to predict pH change following wood-ash amendment. The ability to predict pH change is important because it is one of the criteria used to prescribe rates of ash amendment to forest soils.


Maine Nonpoint Source Pollution Assessment Report, Bureau Of Water Quality Control Jan 1989

Maine Nonpoint Source Pollution Assessment Report, Bureau Of Water Quality Control

Maine Collection

Maine Nonpoint Source Pollution Assessment Report

Prepared by the Maine Department of Environmental Protection, Bureau of Water Quality Control, Augusta, Maine 1989.

Contents: Executive Summary / Introduction / Methodology / Statewide Water Quality Summary / State And Local Agency Programs for Control of Nonpoint Source Pollution / Process for Identification of Best Management Practices and Associated Standards / List of References / List of Figures / List of Tables



Trees For Windbreaks On Swan Coastal Plain Farms, Leon English, Ken Angell, Metropolitan District Office, Department Of Agriculture And Food, Western Australia Jan 1989

Trees For Windbreaks On Swan Coastal Plain Farms, Leon English, Ken Angell, Metropolitan District Office, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

Strong easterly and south-westerly winds are a feature of the Swan Coastal Plain and we receive frequent inquiries about which tree species are suitable for planting as windbreaks. When selecting trees for windbreaks you must match the species to the various soil types which occur along the Coastal Plain. The mature height of the tree is also an important consideration in good windbreak design. This Bulletin lists species which are suitable for windbreaks in descending order of mature height and indicates the soil type(s) on which they should be planted.