Browsing by Title

CTL DSpace Repository

Browsing by Title

Sort by: Order: Results:

  • Tignor, Milton (2004-11-24
      Image looking down an aluminium framed poly greenhouse at tomato production in ground with straw mulch. Side and ridge vents open.
  • Tignor, Milton (2005-04-07
      Easter lilies (Lilium longiflorumare) with long, white, fragrant trumpet-shaped flowers are a seasonal greenhouse crop that start the season for many greenhouse operations.
  • Heleba, David (2005-01-20
      Easter Lilies are a popular seasonal containerized crop in northern climates.
  • McMahon, Margaret (2004-10-13
      Using paper sleeves to protect potted crop during shipping
  • McMahon, Margaret (2004-10-13
      Ebb & Flood bench with no water, distance view
  • McMahon, Margaret (2004-10-13
      Ebb and flood bench with no water
  • McMahon, Margaret (2004-10-13
      Ebb and Flood bench with water
  • McMahon, Margaret (2004-10-13
      Ebb & Flood floor with no plants or water
  • McMahon, Margaret (2004-10-18
      Ebb & Flood floor with plants, no water
  • McMahon, Margaret (2004-10-18
      Ebb and Flood Floor Draining with Poinsettia crop
  • McMahon, Margaret (2004-10-18
      Ebb and Flood Floor Filled
  • Wilson, Sandra (2005-01-20
  • Wilson, Sandra (2005-05-15
      Agristarts is a biological technology company that produces and sells tissue culture liners on a wholesale level. Micropropagated plantlets are mass produced clonally in the laboratory from mother stock plants.
  • McMahon, Margaret (2005-11-18
      Water can be applied to two tiers of hanging baskets as they pass the hose breakers.
  • McMahon, Margaret (2005-11-18
      The Echo watering system moves hanging baskets around on a suspended cable system pictured here. The baskets can be hung at two different levels from the hangers.
  • McMahon, Margaret (2005-11-18
      Water is being applied to the hanging basket by the upper hose. If a second level of baskets was hanging, the lower hose would water it.
  • Lucero, D. E.; Morrissey, L. A.; Rizzo, D. M.; Rodas, A.; Garnica, R.; Stevens, L.; Bustamante, D. M.; Carlota Monroy, M. (American Journal of Tropical Medicine and Hygiene, 2013
      In this study, we evaluate the effect of participatory Ecohealth interventions on domestic reinfestation of the Chagas disease vector Triatoma dimidiata after village-wide suppression of the vector population using a residual insecticide. The study was conducted in the rural community of La Brea, Guatemala between 2002 and 2009 where vector infestation was analyzed within a spatial data framework based on entomological and socio-economic surveys of homesteads within the village. Participatory interventions focused on community awareness and low-cost home improvements using local materials to limit areas of refuge and alternative blood meals for the vector within the home, and potential shelter for the vector outside the home. As a result, domestic infestation was maintained at <= 3% and peridomestic infestation at <= 2% for 5 years beyond the last insecticide spraying, in sharp contrast to the rapid reinfestation experienced in earlier insecticide only interventions.
  • Todd, J.; Brown, E. J. G.; Wells, E. (Ecological Engineering, 2003
      Over the past three decades ecological design has been applied to an increasingly diverse range of technologies and innovative solutions for the management of resources. Ecological technologies have been created for the food sector, waste conversion industries, architecture and landscape design, and to the field of environmental protection and restoration. The five case studies presented here represent applications of ecological design in five areas: sewage treatment, the restoration of a polluted body of water, the treatment of high strength industrial waste in lagoons, the integration of ecological systems with architecture, and an agriculturally based Eco-Park. Case #1 is an Advanced Ecologically Engineered System (AEES) for the treatment of sewage in Vermont, a cold climate. The facility treated 300 m(3) per day (79,250 gallons per day) of sewage to advanced or tertiary wastewater standards, including during the winter months. A number of commercial byproducts were developed as part of the treatment process. Case #2 involved the treatment of a pond contaminated with 295 m(3) per day (77,930 gallons per day) of toxic leachate from an adjacent landfill. A floating Restorer was built to treat the polluted pond. The Restorer was powered by wind and solar based energy sources. Over the past decade the pond has improved. There has been a positive oxygen regime throughout the water column, bottom sediments have been digested and the quality of the sediment chemistry has improved. The biodiversity of the macrobenthos of the pond has increased as a result of the improved conditions. Case #3 involved the treatment of 37,850 m 3 per day (I million gallons per day) of high strength waste from a poultry processing plant utilizing a dozen AEES Restorers. The technology has resulted in a 74% drop in energy requirements for treatment and has dramatically reduced the need for sludge removal. Currently, sludge degradation is proceeding faster than sludge accumulation. Case #4 includes several examples of buildings that utilize ecologically engineered systems to treat, recycle and permit the reuse of wastewater. The new Lewis Center for Environmental Studies at Oberlin College is a recent example of this trend. Case #5 describes the work that is leading to the creation of an urban, agriculturally based, Eco-Park in Burlington, Vermont. Waste heat from a nearby power station will provide year round climate control in a structure developed for food processing businesses, including a brewery, and for the onsite growth of diverse foods in integrated systems. We also describe a project to amplify the value of waste organic materials through biological conversion to high value products such as fish, flowers, mushrooms, soils amendments, and livestock and fish feeds. An ecologically designed fish culture facility will be an integral part of the Eco-Park complex. The project is intended to demonstrate the economic viability of integrative design in an urban setting and to address the important issue of locally based food production. (C) 2003 Elsevier B.V. All rights reserved.
  • Gowdy, J.; Erickson, J. (Ecological Economics, 2005
  • Costanza, R.; Farley, J. (Ecological Economics, 2007
      Coastal disasters are increasing in frequency and magnitude-measured in terms of human lives lost, destroyed infrastructure, ecological damage and disrupted social networks. Hurricane Katrina and the Indian ocean tsunami illustrate the severe and widespread impacts of such disasters on human well-being. The proximate cause of most of these disasters is "forces of nature". However, human decisions, driven largely by economic forces, do much to aggravate these natural disasters-for example, coastal mangroves and wetlands protect coastal communities from wave surges and winds, but are rapidly being converted for the production of market goods, and anthropogenic climate change driven by the energy use of our economy may exacerbate coastal disasters in several ways. The goal of economics should be to improve the sustainable well-being of humans. Our well-being is generated in part by the production of market goods and services, but also by the goods and services provided by nature, by social networks and norms, by knowledge and health-in short: built, natural, social and human capital, respectively. in seeking to increase human well-being solely, by maximizing the monetary value of market goods (built capital), our current economic system may be doing more to undermine our sustainable well-being than to improve it, a point made clear by the growing negative impacts of coastal disasters. An economic system should allocate available resources in a way that equitably and efficiently provides for the sustainable well-being of people by protecting and investing in all four types of capital. This is what ecological economics seeks to do. This article introduces ten papers that apply the four capital framework to the analysis of coastal disasters, seeking to understand their impacts and how to mitigate them, how to predict and plan for them, and how to use this information to redesign coastal areas in a more sustainable and desirable way. (c) 2007 Elsevier B.V. All rights reserved.

Search DSpace

Browse

My Account