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Showing result 1 - 5 of 9 essays matching the above criteria.

1. 1. Ecological risk assessment of pesticide use in rice farming in the Mekong Delta , Vietnam

   University essay from Stockholms universitet/Institutionen för naturgeografi

   Author : Bubaraye Ohiosimuan Dirikumo; [2023]
   Keywords : Pesticides; Ecological Risk Assessment ERA ; rice farming; Mekong Delta; PRIMET Model; Exposure Toxicity Ratio ETR ; species sensitivity distribution SSD ; predicted environmental concentrations PECs ;

   Abstract : Pesticide use in rice farming is a common practice in the Mekong Delta and poses ecological risks to aquatic organisms, the environment, and human health. This study focused on the ecological risk assessment of pesticide use in rice farming using the PRIMET model as a decision support tool to evaluate the risks of pesticide exposure, ecotoxicity, and risk characterization, as well as employing the species sensitivity distribution (SSD) assessment model to calculate the potentially affected fraction (PAF) of species based on the computed predicted environmental concentrations (PECs) from PRIMET. READ MORE

3. 2. Evaluation of Crop Water Use and Rice Yield Using Remote Sensing and AquaCrop Model for Three Irrigation Schemes in Sri Lanka

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Veronika Widengren; [2022]
   Keywords : WaPOR; remote sensing; evapotranspiration; crop water productivity; irrigation scheme; AquaCrop; Malwathu Oya; Sri Lanka; paddy rice; humid tropical climate; WaPOR; fjärranalys; evapotranspiration; vattenproduktivitet; bevattningssystem; AquaCrop; Malwathu Oya; Sri Lanka; ris; fuktigt tropiskt klimat;

   Abstract : With a changing climate and an increased competition over water resources for agricultural irrigation, the need to improve crop water productivity using time and cost-efficient methodologies have become critically important. The Malwathu Oya river basin in Sri Lanka is struggling with water scarcity, which threatens food security and the income of farmers. READ MORE

4. 3. Gendered groundwater technology adoption in Bangladesh : case studies from Thakurgaon and Rangpur

   University essay from SLU/Dept. of Urban and Rural Development

   Author : Sadiq Zafrullah; [2019]
   Keywords : groundwater; technologies; irrigation; experiences; social construction; norms; intersectionality;

   Abstract : Groundwater irrigation technologies are crucial for dry season agriculture in the North Western part of Bangladesh. The production of the major crop of the country, rice, is highly dependent on groundwater irrigation using Shallow Tube Wells (STW) and Deep Tube Wells (DTW). READ MORE

5. 4. Commercial eucalyptus plantations with Taungya system in Lao PDR: analysis of tree root biomass

   University essay from SLU/Southern Swedish Forest Research Centre

   Author : Simon Edberg; [2015]
   Keywords : eucalyptus; agroforestry; root development; root system; Southeast Asia;

   Abstract : The increasing demand for wood, fibre and pulp coupled with efforts to mitigate greenhouse gas emission has put immense importance on the development of forest plantations. The rapidly growing human population will also face shortage of food, particularly in developing world where agricultural productivity is generally low. READ MORE

6. 5. HELPING COGNITIVE RADIO IN THE SEARCH FOR FREE SPACE

   University essay from Avdelningen för elektronik, matematik och naturvetenskap

   Author : Lee Gonzales Fuentes; [2012]
   Keywords : Discriminant analysis; spectrum sensing; cognitive radio; spectral component; Rice distribution;

   Abstract : Spectrum sensing is an essential pre-processing step of cognitive radio technology for dynamic radio spectrum management. One of the main functions of Cognitive radios is to detect the unused spectrum and share it without harmful interference with other users. READ MORE