Physical Sciences and Mathematics Commons^™

Earth News, V35, Fall 2011, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- Faculty & Staff News
--- Emeritus News
--- Sunday at the Quarry
--- STORM 2011
--- Grant Activities in Hydrologic Sciences
--- Geology for Iowa Teachers
--- Award Recipient: Sherman Lundy
--- Award Recipient: De Anna Tibben
--- Award Recipient: Aaron Spurr
--- Student Award Recipient: Matt Even
--- Student Research Presentations
--- Internships & Seminars
--- Earth Science Graduates
--- Sigma Gamma Epsilon
--- Making a Difference
--- Alumni News
--- Gifts from Alumni & Friends

Dendrochronology Of Sloane House, Wooster, Ohio

Historic Structures

Dating historical structures in Wayne County, Ohio using dendrochronology. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Fado, Carolyn; Ford, Alexandra; Vargo, Lauren

Soil Test And Phosphorus Rate For High Rainfall Clover Pastures, Robert Summers, David Weaver

Bulletins 4000 -

Essential information for soil testing to determine the phosphorus fertiliser requirements for clover pastures in high rainfall coastal areas of Western Australia. Includes procedures for soil sampling, tissue testing, liming, when to apply fertiliser, how to decide on the target production level, how much fertiliser is required and type of fertiliser.

Dendrochronological Dating Of The Johnson House, Perry County, Ohio

Historic Structures

Dating historical structures in Perry County, Ohio. The Historical Structures collection consists of reports that are the resoult of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Theisen, Jon; Wiles, Greg

Dendrochronological Dating Of Perry County District Library, Somerset, Ohio

Historic Structures

Dating historical structures in Somerset, Ohio 2011. The Historical Structures collection consists of reports that are the resoult of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Mudd, Anna; Theisen, Jon; Wiles, Greg

Dendrochronological Dating Of The Linnabary House, Worthington, Ohio

Historic Structures

Dating historical structures in Worthington, Ohio 2011. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Theisen, Jon; Wiles, Greg

Dendrochronological Dating Of The Old Rectory, Worthington, Ohio

Historic Structures

Dating historical structures in Worthington, Ohio. Dating historical structures in Worthington, Ohio. The Historical Structures collection consists of reports that are the result of dendochronological analysis of timbers from structures in Pennsylvania and Ohio. Contributors: Theisen, Jon; Wiles, Greg

Native Vegetation In Western Australia Is Actively Involved With Soil Formation, Doug Sawkins, William H. Verboom, John S. Pate

Bulletins 4000 -

Many adverse situations in Western Australian agriculture have arisen because in the past we cleared native perennial vegetation below safe ecological limits in order to grow annual crops and pasture. In retrospect, we did not fully understand the functioning of the native ecosystems concerned and thus did not foresee the long-term consequences. Research into the survival techniques of native species provides important lessons for future farming. By understanding the behaviour of plants and soils we can maximise their use in a sustainable way. Knowledge of the water acquisition and storage strategies of native plants in seasonally dry areas may be …

Greener Pastures 1 - The Greener Pasture Project: Managing Nutrients In Dairy Pastures, John Lucey, Mike Bolland, Don Bennett, Richard Morris, Bill Russell, Martin Staines

Bulletins 4000 -

As dairy farmers have strived to maintain profitability, many have farmed more intensively. More cows are milked and increasing inputs of fertiliser and purchased feed are used per hectare. However, these increased nutrient inputs have far exceeded the increase in nutrient output in milk production. The increasing nutrient surplus (inputs minus outputs) from intensification on dairy farms has met with increasing community concern about the environmental footprint of the dairy industry. In some other countries, dairy farmers who have intensified by increasing nitrogen inputs are now faced with legislation controlling the amount of fertiliser nitrogen that they can use.

The …

Greener Pastures 2 - Nitrogen For Intensively Grazed Dairy Pastures, Martin Staines, Richard Morris, Tess Casson, Mike Bolland, Bill Russell, Ian Guthridge, John Lucey, Don Bennett

Bulletins 4000 -

We undertook three main studies during the Greener Pastures project:

1. From mid 2005 to late 2008, a farming systems study was undertaken with five rates of nitrogen fertiliser as the main treatment. This study will be referred to as the ‘nitrogen response farmlets’.

2. From 2006 to 2008 a series of smaller ‘supporting’ studies were completed to investigate how grazing management influences the pasture production gains from nitrogen fertiliser. This will be referred to as the ‘nitrogen by growth-stage study’.

3. From early 2009 to early 2010, a farming systems study was undertaken to investigate the potential to increase …

Greener Pastures 4 - Managing Potassium In Dairy Pastures, Mike Bolland, Ian Guthridge, Bill Russell, Martin Staines, John Lucey, Richard Morris

Bulletins 4000 -

We undertook three studies into the potassium requirements of high rainfall pastures: 1. Between 1999 and 2009, soil testing was conducted in 48 dairy paddocks at Vasse Research Centre (VRC) in the south-west of Western Australia (WA). This study will be referred to as the VRC soil test study.

2. Between 2002 and 2007, a potassium experiment was undertaken at Boyanup to improve our knowledge of potassium requirements of intensively grazed ryegrass pastures. This will be referred to as the Boyanup potassium experiment.

3. Between 2006 and 2010, potassium experiments were undertaken on two partner farms of the Greener Pastures …

Greener Pastures 6 - Managing Soil Acidity In Dairy Pastures, Mike Bolland, Bill Russell, Martin Staines, Richard Morris, John Lucey, D L. Bennett

Bulletins 4000 -

During 1999-2009, soil testing for pH (in CaCl2) was used to determine lime application for 48 paddocks at the Vasse Research Centre at Busselton, in the south-west of Western Australia (WA).

Paddocks had been grazed intensively by dairy cows and their young stock over a period of 10 years, as part of the Vasse Milk Farmlets and Greener Pastures farming system projects. Pasture consisted of annual ryegrasses with some subterranean clover. Soils in the 48 paddocks were 1-2 m sand to sandy loam over massive clay, known locally as Abba sand.

For many soils in the region, including Abba sands, …

Greener Pastures 3 - Managing Phosphorus In Dairy Pastures, Mike Bolland, Ian Guthridge, Bill Russell, Martin Staines, John Lucey, Richard Morris

Bulletins 4000 -

Between 1999 and 2009, soil testing was conducted in 48 dairy paddocks at Vasse Research Centre (VRC) in the south-west of Western Australia (WA). This study will be referred to as the VRC soil test study.

Phosphorus experiments were undertaken on partner farms of the Greener Pastures project to improve our knowledge of the phosphorus requirements of intensively grazed ryegrass pastures. These are the partner farm phosphorus experiments.

Greener Pastures 5 - Managing Sulphur In Dairy Pastures, Mike Bolland, Ian Guthridge, Bill Russell, Martin Staines, John Lucey, Richard Morris

Bulletins 4000 -

During 1999-2009, soil testing for sulfur (S) was undertaken on 48 paddocks at the Vasse Research Centre (VRC) at Busselton, in the south-west of Western Australia (WA).

Paddocks had been grazed intensively by dairy cows and their young stock over a period of 10 years, as part of the Vasse Milk Farmlets and Greener Pastures farming system projects. Pasture consisted of annual ryegrasses with some subterranean clover. Soils in the 48 paddocks were 1-2 m sand to sandy loam over massive clay, known locally as Abba sand. For many soils in the region, including Abba sands, the topography is flat …

Essentials Of Geographic Information Systems, Jonathan E. Campbell, Michael Shin

Textbooks

This is the required textbook for ENVR 370 at Liberty University.

Proceedings Of The 2011 International Conference On Karst Hydrogeology And Ecosystems, Jason Samuel Polk, Leslie A. North

Environmental Sustainability Books

Jointly sponsored by the Hoffman Environmental Research Institute, the National Cave & Karst Research Institute, and the International Association of Hydrogeologists, the 2011 International Conference on Karst Hydrogeology and Ecosystems was held at Western Kentucky University in Bowling Green, Kentucy on 8-10 June 2011. Topics include karst geomorphology, engineering and modeling, isotope geochemistry, and cultural and educational aspects of karst environments.

Greener Pastures 7 - A Fresh Look At Nutrient Losses From Intensively Managed Pastures, Don Bennett, Bill Russell, Martin Staines, Richard Morris, Mike Bolland, John Lucey

Bulletins 4000 -

Dairy farmers in Western Australia have a long history of being concerned for the environment in which they live and work, from early involvement with Landcare District Committees through to participating in the various programs run in DairyCatch.

They have planted trees, organised soil testing programs, carried out salinity surveys and, more recently, have signed up for effluent, nutrient and irrigation water management programs. Many of these programs produce benefits both on and off the farm—they can improve the farm environment, increase farm productivity and reduce nutrient losses to surface and ground water. The wider community has supported farmers with …

Landscapes And Soils Of The Lake Grace District, D N. Sawkins

Bulletins 4000 -

The publication aims to provide readers with the principles underlying the formation of local landscapes and soils, and the ability to identify landscapes and their associated soils.

Subsurface Compaction A Guide For Wa Farmers And Consultants, Stephen Davies, Alison Lacey

Bulletins 4000 -

For plants to grow in agricultural soils, roots and emerging shoots must be able to force their way through the soil. In soils of high strength, this growth is physically restricted. High strength soils may be due to natural soil characteristics and conditions or develop as a result of agricultural practices and may be in layers or throughout the soil profile.

In agriculture, high strength soils commonly occur as a result of compaction. Compaction of agricultural soils can be in the surface (often caused by stock trampling or rain drop splatter) or in the subsurface (usually in a layer at …