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Laboratory And Field Performance Of The Biosand Point Of Use Water Filtration System In The Artibonite Valley, Haiti, Andrew John Sisson Dec 2012

Laboratory And Field Performance Of The Biosand Point Of Use Water Filtration System In The Artibonite Valley, Haiti, Andrew John Sisson

Masters Theses

The research presented here is summary two years of studying the Biosand filter (BSF) both in Haiti during March 2011 and in the laboratory. In Chapter 2, we examined the long term use and sustainability 55 BSF systems near Deschapelles, Haiti and 47% were found to be no longer in use. Interviews with BSF owners revealed problems related to intermittent filter use. A review of 17 BSF field studies also was included to compare and substantiate observations made in Haiti. Together, previous field studies and our observations point toward the importance of providing culturally appropriate technologies and education materials explaining …


Impacts Of Agricultural Disturbance On Communities Of Selected Soil Fungi (Agaricomycetes), Jessie R. Wong Aug 2012

Impacts Of Agricultural Disturbance On Communities Of Selected Soil Fungi (Agaricomycetes), Jessie R. Wong

Electronic Thesis and Dissertation Repository

The objective of this study was to use phylogeny-based and community-based analyses to compare the community composition of Agaricomycetes among four different agricultural treatments at the Kellogg Biological Station Long Term Ecological Research (KBS LTER) site. A phylogenetic tree that included 591 ribosomal DNA sequences previously obtained from KBS LTER documented the composition of Agaricomycete communities in each treatment. Sequences from KBS LTER were placed into 472 OTUs (putatively species-level operational taxonomic units defined by 99% or greater sequence similarity) and these were dominated by the Agaricales (with 330 OTUs), Cantharellales (39 OTUs), Hymenochaetales (29 OTUs), and Polyporales (23 OTUs). …


Sustainable Agriculture, Charlene Mills Jun 2012

Sustainable Agriculture, Charlene Mills

Social Sciences

This paper is about sustainable agriculture and how we can strive to achieve it. It discusses what is wrong with our food system today and how we can go about changing that. It incorporates Geography and Anthropology while discussing different issues around the world.


A Baseline Study Of Biofuel Feedstock Growth On Non-Traditional Agronomic Land In Utah, Dallas A. Hanks May 2012

A Baseline Study Of Biofuel Feedstock Growth On Non-Traditional Agronomic Land In Utah, Dallas A. Hanks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nearly all highway, airport, and military areas in Utah cost money to maintain and are often safe harbor for noxious weeds and pests. This project hypothesized that money could be saved and biofuel feedstocks could be grown in these areas, improving sustainability. Agronomic conditions and growth methods were tested to determine if biofuel feedstock production could occur on these marginal, non-traditional plots of land. Models developed illustrate that maintenance costs for these areas can be nullified if oilseed crops grown yield 600 pounds/acre and are used for biodiesel production. This feedstock yield would result in approximately 25 gallons of biodiesel …