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  • 1
    Online Resource
    Online Resource
    School of Environmental Science and Management, University of the Philippines Los Banos ; 2016
    In:  Journal of Environmental Science and Management Vol. 19, No. 1 ( 2016-06-30), p. 58-71
    In: Journal of Environmental Science and Management, School of Environmental Science and Management, University of the Philippines Los Banos, Vol. 19, No. 1 ( 2016-06-30), p. 58-71
    Abstract: Environmental burdens of the different components of conventional and organic vegetable productions systems in Tayabas, Quezon were evaluated using the Life Cycle Assessment (LCA) approach. The study quantified the material inputs, outputs and emissions in a defined boundary, from land preparation to transport to market. Impact categories evaluated were global warming (GWP), acidification (AP), eutrophication (EP) and human toxicity (HTP) potentials based on the functional units of 1 kg and 1 ha production area. Conventional vegetable farming contributions to global warming potential was 2.12E-01 kg CO2 equivalent kg-1 of vegetable which was 43% higher than organic farming (1.21E-01 kg CO2 equivalent kg-1 of vegetable). Acidification potential of conventional (4.76E-03 g SO2 equivalent kg-1 of vegetable) was 23% higher than organic vegetable production (1.06E-03 g SO2 equivalent kg-1 of vegetable). Organic farming contributed 3.03E+00 kg PO4 equivalent kg-1 of vegetable potential eutrophication which was 16% higher than conventional with only 4.70E-01 kg PO4 eq kg-1 of vegetable. The application of chemical pesticides of conventional farms contributed to human toxicity potential calculated for both soil and air compartments. Cypermethrin had the highest total human toxicity in soil and air with 7.88E+06 g 1,4 DCB-eq ha-1 and 1.84E+02 g 1,4 DCB-eq ha-1, respectively. Organic farms had zero human toxicity potential in this study since organic farmers did not use synthetic pesticides.This study provided evidence on the possible environmental contributions to emissions of conventional and organic vegetable production systems
    Type of Medium: Online Resource
    ISSN: 0119-1144
    URL: Issue
    Language: Unknown
    Publisher: School of Environmental Science and Management, University of the Philippines Los Banos
    Publication Date: 2016
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  • 2
    Online Resource
    Online Resource
    School of Environmental Science and Management, University of the Philippines Los Banos ; 2016
    In:  Journal of Environmental Science and Management ( 2016), p. 93-100
    In: Journal of Environmental Science and Management, School of Environmental Science and Management, University of the Philippines Los Banos, ( 2016), p. 93-100
    Abstract: Global and historical trends show the re-emergence of woodfuels as alternative sources of energy amid concerns over their environmental impacts. Charcoal production, in particular, remains a significant source of indigenous energy for developing countries like the Philippines, where it is perceived as a cause of deforestation and environmental degradation. This study presents a case where charcoal production can be practiced on a sustainable basis by focusing on aspects that affect the environment, namely, wood source, harvesting strategy and production techniques. Key informant interviews, focus group discussions and a survey among charcoal producers in Mulanay, Quezon revealed a preference on hardwoods that produce slow-burning charcoals and other readily-available, usually invasive, tree species. Harvesting strategies include tree felling and pruning and rotational harvesting to allow stock replenishment. Charcoal producers employ an old but simple production technique called ‘binulkan’, which has an efficiency rate of 7.7% by weight. The study concludes that an environmentally-sustainable charcoal industry in Mulanay can be achieved by planting and utilizing suitable tree species and improving harvesting systems and production techniques. Further study is recommended to assess the feasibility of establishing wood plantations for charcoal production with regard to its poverty reduction potential and continued benefits to the community.
    Type of Medium: Online Resource
    ISSN: 0119-1144
    URL: Issue
    Language: Unknown
    Publisher: School of Environmental Science and Management, University of the Philippines Los Banos
    Publication Date: 2016
    Location Call Number Limitation Availability
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  • 3
    Online Resource
    Online Resource
    School of Environmental Science and Management, University of the Philippines Los Banos ; 2020
    In:  Journal of Environmental Science and Management Vol. 23, No. 2 ( 2020-12-31), p. 19-28
    In: Journal of Environmental Science and Management, School of Environmental Science and Management, University of the Philippines Los Banos, Vol. 23, No. 2 ( 2020-12-31), p. 19-28
    Abstract: Climate change and malnutrition are two global phenomena that affect millions of population groups. The Philippines is considered one of the most vulnerable countries for extreme natural events and at the same time has a high prevalence of underweight (19.0%) and stunting (28.8%) in 2019 among under five children. The nutritionally vulnerable groups are children, pregnant and lactating women, and elderly. These groups are also greatly affected by climate change-related events then the malnutrition situation is exacerbated. The local nutrition workers are the frontline workers who plan, implement, and monitor nutrition programs. Mainstreaming climate change in the local nutrition planning processes will be facilitated if nutrition workers are knowledgeable. This study aimed to determine the current knowledge, attitudes and practices of nutrition workers and perceptions on how to mainstream climate change in the nutrition sector’s local planning system. A survey was conducted among local nutrition workers. Ninety-five percent of nutrition workers were highly knowledgeable, 86% were with high level of attitudes and 50% were exhibiting moderate level of practices related to climate change. The gaps can be narrowed by capacity building and possibly this can lead to mainstreaming climate change in the local nutrition planning process.
    Type of Medium: Online Resource
    ISSN: 0119-1144
    URL: Issue
    Language: Unknown
    Publisher: School of Environmental Science and Management, University of the Philippines Los Banos
    Publication Date: 2020
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    School of Environmental Science and Management, University of the Philippines Los Banos ; 2015
    In:  Journal of Environmental Science and Management Vol. 18, No. 2 ( 2015-12-31), p. 53-61
    In: Journal of Environmental Science and Management, School of Environmental Science and Management, University of the Philippines Los Banos, Vol. 18, No. 2 ( 2015-12-31), p. 53-61
    Abstract: Environmental burdens of one ton baled abaca fiber, which is exported as Manila hemp, were determined using life cycle assessment with three phases: plantation establishment and fiber harvesting, fiber trading, and grading and baling of fiber. Abaca fiber was organically produced in Catanduanes. One hectare abaca plantation produced an average of 830 kg fiber with a total mean discarded biomass of 5.7 t. A barangay trader can purchased 712 kg of dry fiber per week while Grading and Baling Establishment (GBE) procured and processed 250 t mo-1. One ton of baled fiber required 1.6 ha plantation with 2,132 undamaged abaca hills that produced 1,052.6 kg dry abaca fiber. Harvesting produced about 80.2 t of discarded materials and weeds which used as mulch, however, estimated soil nutrient loss was 0.5 kg N and 0.1 kg P and 5.4 kg K. Trading and baling produced 52.6 kg fiber by-product used for furniture making; more than 5 kg of fiber dust and a total global warming potential of 47.7 kg CO2 equivalent. The following are recommended to improve farm productivity: a) use of organic fertilizer to replace the nutrient loss; b) improve stripping device to enhance fiber quality; and c) utilize farm waste for soil conservation. Local policy on abaca trading was recommended to increase farmer’s share. GBE must provide mechanism to improve environmental work condition and strictly enforce the use of ear plug to avoid hearing loss of workers.
    Type of Medium: Online Resource
    ISSN: 0119-1144
    URL: Issue
    Language: Unknown
    Publisher: School of Environmental Science and Management, University of the Philippines Los Banos
    Publication Date: 2015
    Location Call Number Limitation Availability
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