Search Results for: item/10864860/PhD-position-Global-flood-risk-assessment-and-behavioural-modelling-VU-Amsterdam/page/49/www.linkedin.com/in/apoorva-seeram

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Determining optimal riparian buffer zones in Uruguay: integrating ecological and socio-economic criteria

  • 1 February, 2021
  • Wageningen University, Environmental Economics and Natural Resources
  • prof. F Alpizar
  • dr M HolmgrenProf. M. Carriquiry

Riparian buffer zones (RBZ) are vegetated areas adjacent to surface watercourses. They are important for terrestrial and aquatic ecosystems since they regulate the fluxes of sediments and nutrients from land to water, reduce the impact of flooding, and are the habitat for plants and animals of both systems. The present PhD project aims to develop a methodology for the optimal determination of the RBZs (that maximizes social welfare and/or minimizes costs), considering the ecosystem services provided, the opportunity costs involved and the environmental policy strategy to be implemented. We will focus on analysing the service of water quality improvement that the RBZs provide by operating as a natural barrier for sediments, pathogens and nutrient loads from adjacent lands. This ecosystem service is essential for the provision of clean water to urban, productive and natural systems.
The project is structured in four specific objectives:
Objective 1: Evaluate the efficiency of buffer zones as a measure to reduce the export of nutrients to watercourses, compared to a tax on fertilizers as an alternative measure.
Objective 2: Economically value water quality improvement provided by different combinations and scenarios of RBZs.
Objective 3: Evaluate the factors that determine the willingness of Uruguayan farmers and ranchers to participate in different types of environmental policy strategies for implementing RBZ conservation measures, such as mandatory buffer strips or payment for ecosystem services scheme.
Objective 4: Evaluate the cost-effectiveness and impacts on human well-being of different combinations of width, composition of RBZ and environmental policy strategy on a conservation measure of RBZ.

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Guillermo Sena Barrera

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Nutrient pollution in two lakes of the Haihe Basin in China: Causes, effects and future trends

  • 21 June, 2021
  • 11.00-12:30
  • Wageningen University, Water Systems and Global Change
  • prof. dr C Kroezeprof. dr Ma
  • dr M Strokal

Lakes and their drainage basins provide important ecosystem services and natural resources to support human development. However, many rivers and lakes have become polluted and eutrophied. Haihe Basin is one of the largest river basins of China, facing serious water pollution and water shortage. There are more than 1000 reservoirs and natural lakes in Haihe Basin. In this thesis, I choose Guanting reservoir and Baiyangdian lake in Haihe Basin as case studies. The main objective of this research is to improve our understanding of nutrient flows from land to two lakes in the Haihe Basin, and possibilities to reduce this pollution in the future.

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Jing Yang

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Evaluating the quality of remote sensing-based agricultural water productivity data

  • 7 October, 2021
  • 14:45
  • University of Twente, Water Resources
  • dr.ir. C.M.M. Mannaerts
  • -

The role of water in agriculture is essential and plays an important role in food security. We need to better understand how to optimise water use in agriculture to meet both global food security and water management efficiency goals. Earth observation with satellite offers the opportunity to map, monitor and better understand the dynamics of agricultural water. However, the applicability and accuracy of these observations need to be better understood. This dissertation aims to better understand the suitability of large remote sensing-based datasets for the monitoring of crop water productivity (CWP). CWP being an indicator of agricultural water efficiency.

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Megan Blatchford

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The water-food nexus of the Indus Basin

  • 1 April, 2020
  • Wageningen University, Water Systems and Global Change
  • prof. dr F Ludwig
  • dr H Biemans

The Indus basin is considered one of the world’s most water-scarce river basins. Food production in the Indus basin mainly depends on irrigated agriculture;; however, the changing climate poses uncertainty in future water availability. Additionally, socio-economic development and population growth will increase food and water demand in the future. Climate-smart agriculture (CSA) can provide a local mechanism for enhancing sustainable food production. This research aims to understand the relationship between field scale (local) CSA and its potential basin-scale impacts. FField-scale CSA practices for enhancing agricultural water productivity will be evaluated. Furthermore, the potential for CSA upup-scaling to enhance sustainable food production and contribute to the sustainable development goals (SDGs) will be assessed.

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Mohammed Khalid Jamil

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Impact of large scale implementation of climate smart agricultural interventions on climate resilience of different value chains and farming systems from an agricultural production and environmental perspective

  • 1 April, 2019
  • Wageningen University, Water Systems and Global Change
  • prof. dr F Ludwig
  • dr AME Groot

Climate change in East Africa can potentially have far-reaching consequences for the agriculture sector, management of natural resources and food security. Many farming systems in Africa are currently highly vulnerable to climate variability and change. At the same time there is need to improve agricultural production in East African farming systems. These challenges require a response that integrates improved food security for vulnerable groups with climate adaptation and mitigation of food crop production and supply systems. The adoption of climate smart and ecologically sustainable production methods is essential for improving productivity and resilience of the existing food crop production and supply systems. However, until now there is limited data and information available on the impacts of different climate smart agriculture (CSA) interventions on agricultural production, food security and ecological resilience of the farming systems and larges landscapes. To fill this knowledge and data gap the will to assess the impacts of (large scale) implementation of CSAs on the resilience and ecological sustainability at different scales.

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Thomas Kirina

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Integrated urban infrastructural transition for food, water and energy nexus in Ilorin, North-Central Nigeria

  • 4 April, 2021
  • Wageningen University, Environmental Technology & Environmental Economics and Resources
  • prof. dr HHM Rijnaarts
  • dr WS Chendr HP Weikard

In recent times, food waste has become a global concern. Of the different types of organic waste, food makes up the largest constituent of municipal solid waste streams. Food waste is difficult to manage because it contains moisture and it is mixed with other waste during collection and disposal. Major source of food waste includes households, market, restaurants, hotels and food processing industries. Nigeria is a developing country challenged with increase population, unsustainable development and resultant complicated and unproductive urban food waste management. Proper food waste management using integrated approaches can contribute significantly towards climate change mitigation and generate resources.

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Halimat Abdul-Rahman

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