Physical Sciences and Mathematics Commons^™

Lower Yilgarn Catchment Appraisal 2003, D G. Cummins

Resource management technical reports

This report summarises current information on risks and impacts to agricultural production and natural resources within the Lower Yilgarn Catchment. It also identifies suitable options to manage such risks. The report has been divided into three sections : the natural resource base, the catchment risks and management options and impacts. Rapid Catchment Appraisal aims to document salinity risk and management options by addressing all threats to the natural resource base.

Groundwater Management: Lessons From Colorado V. Kansas, David W. Robbins

Groundwater in the West (Summer Conference, June 16-18)

11 pages.

Groundwater Resources Of The Lower Colorado Region, Tim Henley

Groundwater in the West (Summer Conference, June 16-18)

15 pages.

Slides: Overview Of Ground-Water Quality And Related Management Issues, Mike Wireman

Groundwater in the West (Summer Conference, June 16-18)

Presenter: Mike Wireman, Regional Groundwater Expert, EPA Region 8.

32 slides.

Keynote Address: Breathing Lessons, J. Russell Mason

USDA Wildlife Services: Staff Publications

Current issues in wildlife damage management and the protection of human health and safety arise from the successful application of traditional methods by state and federal managers. The paradox is that these same methods are increasingly controversial. Within this constraint, management strategies may be difficult to implement. In California, for example, protecting state-threatened foxes could mean killing federally protected golden eagles. In Utah, restoring Gunnison sage grouse may require the sustained lethal suppression of predator populations unless or until habitat can be restored. The obvious fact is that these are unpopular choices, and special interest groups frequently oppose selective intervention, …

Subsurface Acidity, Mike Bolland, Chris Gazey, Amanda Miller, Dave Gartner, Julie-Anne Roche

Bulletins 4000 -

Productive agriculture increases the concentration of hydrogen ions in soil, which acidifies the soil.

Aluminium is a component of many soil constituents, including clays and oxides, and is also present on the surfaces of soil organic matter. As the concentration of hydrogen ions in soil increases, soil pH decreases, and aluminium starts to dissolve from the soil constituents, increasing the concentration of aluminium ions in soil solution.

As the concentration of aluminium ions in the solution increases, the aluminium in the soil solution becomes increasingly toxic to plant roots, reducing root growth. The smaller amounts of plant roots explore a …

Frankland-Gordon Area : Catchment Appraisal 2003, Tim D. Overheu, Natural Heritage Trust (Australia)

Resource management technical reports

Rapid catchment appraisal to assess the condition of, and future risks to, agricultural and natural resources within the Frankland Gordon area in Western Australia.