Physical Sciences and Mathematics Commons^™

Earth News, Fall 1991, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- Year in Review
--- Staff News
--- Graduations, Awards, and Recognitions, 1991
--- Department of Earth Science Seminars Spring 1991
--- Department of Earth Science Seminars Fall 1992
--- News from Alumni
--- Seasons Greetings from the Department of Earth Science

Revegetation Guide To The Central Wheatbelt, E C. Lefroy, R J. Hobbs, L J. Atkins, Department Of Agriculture And Food, Western Australia, Csiro, Division Of Wildlife And Ecology

Bulletins 4000 -

The rapid development of the central wheatbelt for agriculture over the past century has produced a productive farming landscape, but one which is increasingly subject to degradation. Erosion, salinization, declining soil structure, waterlogging and acidification are all symptoms of this degradation and causes of lost agricultural production. In addition, most of the native vegetation and many of the native animals have disappeared, and the natural heritage of the area resides in small scattered patches that together make up only seven per cent of the wheatbelt region.

Many farmers now recognize that replanting trees and shrubs is an effective means of …

Tb145: Chemical And Physical Properties Of The Fryeburg, Lovewell, Cornish, And Charles Soil Map Units, R. V. Rourke

Technical Bulletins

Four soil map units from the flood plains of the Saco and Androscoggin rivers were sampled at five locations each. Soil morphology was described at each site, and samples of the soil were taken for later laboratory analyses. Chemical and physical properties of the soil were analyzed in the laboratory. The morphologic and laboratory data are presented for each pedon sampled and as summaries using weighted means of laboratory data for each soil map unit. Organic carbon measurements are presented at other sites of similar drainages and positions to demonstrate the variable carbon content.

An Introduction To The Soils Of The Katanning 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 Narrogin Advisory District, T C. Stoneman, Department Of Agriculture And Food, National Soil Conservation Program (Australia)

Bulletins 4000 -

Descriptions, illustrations and notes on eight common soils / compiled by T.C. Stoneman.