Your search found 3 records
1 Yalew, S. G.; Pilz, T.; Schweitzer, C.; Liersch, S.; van der Kwast, J.; van Griensven, A.; Mul, Marloes L.; Dickens, Chris; van der Zaag, P. 2018. Coupling land-use change and hydrologic models for quantification of catchment ecosystem services. Environmental Modelling and Software, 109: 315-328. [doi: https://doi.org/10.1016/j.envsoft.2018.08.029]
Ecosystem services ; Catchment areas ; Land use ; Hydrological factors ; Models ; Couplings ; Calibration ; Environmental assessment ; Stream flow ; Biomass ; Grasslands ; Grazing lands
(Location: IWMI HQ Call no: e-copy only Record No: H048890)
Representation of land-use and hydrologic interactions in respective models has traditionally been problematic. The use of static land-use in most hydrologic models or that of the use of simple hydrologic proxies in land-use change models call for more integrated approaches. The objective of this study is to assess whether dynamic feedback between land-use change and hydrology can (1) improve model performances, and/or (2) produce a more realistic quantification of ecosystem services. To test this, we coupled a land-use change model and a hydrologic mode. First, the land-use change and the hydrologic models were separately developed and calibrated. Then, the two models were dynamically coupled to exchange data at yearly time-steps. The approach is applied to a catchment in South Africa. Performance of coupled models when compared to the uncoupled models were marginal, but the coupled models excelled at the quantification of catchment ecosystem services more robustly.
2 Del Borghi, A.; Tacchino, V.; Moreschi, L.; Matarazzo, A.; Gallo, M.; Vazquez, D. A. 2022. Environmental assessment of vegetable crops towards the water-energy-food nexus: a combination of precision agriculture and life cycle assessment. Ecological Indicators, 140:109015. [doi: https://doi.org/10.1016/j.ecolind.2022.109015]
Precision agriculture ; Life cycle assessment ; Water resources ; Energy ; Food production ; Nexus approaches ; Sustainability ; Vegetable crops ; Beans ; Peas ; Sweet corn ; Environmental assessment ; Tomatoes ; Water use ; Case studies / Italy
(Location: IWMI HQ Call no: e-copy only Record No: H051253)
https://www.sciencedirect.com/science/article/pii/S1470160X22004861/pdfft?md5=b718f554f2084af51058ca068d0ff3f1&pid=1-s2.0-S1470160X22004861-main.pdf
https://vlibrary.iwmi.org/pdf/H051253.pdf
https://vlibrary.iwmi.org/pdf/H051253.pdf
(2.07 MB) (2.07 MB)
The increase in world population and the resulting demand for food, water and energy are exerting increasing pressure on soil, water resources and ecosystems. Identification of tools to minimise the related environmental impacts within the food–energy–water nexus is, therefore, crucial. The purpose of the study is to carry out an analysis of the agri-food sector in order to improve the energy-environmental performance of four vegetable crops (beans, peas, sweet corn, tomato) through a combination of precision agriculture (PA) and life cycle assessment (LCA). Thus, PA strategies were identified and a full LCA was performed on actual and future scenarios for all crops in order to evaluate the benefits of a potential combination of these two tools. In the case study analysed, a life cycle approach was able to target water consumption as a key parameter for the reduced water availability of future climate scenarios and to set a multi-objective function combining also such environmental aspects to the original goal of yield maximisation. As a result, the combination of PA with the LCA perspective potentially allowed the path for an optimal trade-off of all the parameters involved and an overall reduction of the expected environmental impacts in future climate scenarios.
3 Taron, Avinandan; Majumder, A.; Bodach, Susanne; Agbefu, Dzifa. 2023. Public-private partnerships for the circular bio-economy in the Global South: lessons learned. Colombo, Sri Lanka: International Water Management Institute (IWMI). 50p. (Resource Recovery and Reuse Series 22) [doi: https://doi.org/10.5337/2023.205]
Resource recovery ; Resource management ; Reuse ; Circular economy ; Bioeconomy ; Public-private partnerships ; Developing countries ; Case studies ; Waste management ; Solid wastes ; Recycling ; Composting ; Organic wastes ; Organic fertilizers ; Bioenergy ; Biogas ; Briquettes ; Business models ; Markets ; Scaling up ; Appropriate technology ; Innovation ; Financial analysis ; Risk management ; Policies ; Regulations ; Legal frameworks ; Economic viability ; Feasibility studies ; Project design ; Costs ; Environmental assessment ; Social analysis ; Infrastructure ; Investment ; Marketing ; Small and medium enterprises ; Stakeholders ; Municipal authorities ; Procurement planning ; Contracts ; Sustainability ; Carbon credits ; Climate change mitigation ; Agricultural wastes ; Faecal sludge ; Soil quality ; Communities ; Awareness / Asia / Africa / India / Bangladesh / Ghana / Sri Lanka / Pakistan / Rwanda / Indonesia / Somanya / Bulta / Matara / Lahore / Pune / Kigali / Karnataka / New Delhi / Sakhipur / Kolkata / Temesi / Tema / Timarpur
(Location: IWMI HQ Call no: IWMI Record No: H052155)
(6.20 MB)
Processing biomass from different waste streams into marketable products such as organic fertilizer and bio-energy is increasingly realized through public-private partnerships (PPPs). In developing countries, the private sector can be expected to contribute technical skills, organizational capabilities and marketing expertise, and leverage capital inflow. In contrast, the public sector will provide the regulatory framework and help its enforcement, plan public investment, involve and educate stakeholders, and ensure waste supply.
This report reviews case studies that implemented PPPs in resource recovery and reuse (RRR) from waste streams with a particular focus on Asia and Africa, including those PPPs facilitated by the authors. Critical factors behind the success and failure of these cases are analyzed. The review indicates three key barriers to success: (i) waste-related bottlenecks, (ii) limited awareness about RRR products and their market(ing), and (iii) lack of proper institutional frameworks. Common shortfalls concern failure to meet commitments related to the quality and quantity of waste, missing understanding of the reuse market, etc. The report points out mitigation measures addressing possible challenges around appropriate technologies, finance and revenue streams, legal issues, as well as social and environmental concerns. It is required to establish close monitoring, appropriate procurement mechanisms and due diligence during the project preparation and pre-bid. If possible, such a PPP project should consider risk and commercial viability assessment as well as financial strategy planning (scaling).
Successful involvement of the private sector in the RRR market is critical to close the resource loop and safeguard human and environmental health, which is the overarching objective of sustainable waste management.
This report reviews case studies that implemented PPPs in resource recovery and reuse (RRR) from waste streams with a particular focus on Asia and Africa, including those PPPs facilitated by the authors. Critical factors behind the success and failure of these cases are analyzed. The review indicates three key barriers to success: (i) waste-related bottlenecks, (ii) limited awareness about RRR products and their market(ing), and (iii) lack of proper institutional frameworks. Common shortfalls concern failure to meet commitments related to the quality and quantity of waste, missing understanding of the reuse market, etc. The report points out mitigation measures addressing possible challenges around appropriate technologies, finance and revenue streams, legal issues, as well as social and environmental concerns. It is required to establish close monitoring, appropriate procurement mechanisms and due diligence during the project preparation and pre-bid. If possible, such a PPP project should consider risk and commercial viability assessment as well as financial strategy planning (scaling).
Successful involvement of the private sector in the RRR market is critical to close the resource loop and safeguard human and environmental health, which is the overarching objective of sustainable waste management.
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