Your search found 2 records
1 Gumma, M. K.; Mohammad, I.; Nedumaran, S.; Whitbread, A.; Lagerkvist, C. J. 2017. Urban sprawl and adverse impacts on agricultural land: a case study on Hyderabad, India. Remote Sensing, 9(11):1-16. [doi: https://doi.org/10.3390/rs9111136]
Agricultural land management ; Urban agriculture ; Periurban areas ; Land use ; Land cover change ; Wastewater irrigation ; Satellite imagery ; Spatial distribution ; Mapping ; Farmland ; Case studies / India / Hyderabad
(Location: IWMI HQ Call no: e-copy only Record No: H048409)
(13.9 MB)
Many Indian capitals are rapidly becoming megacities due to industrialization and rural–urban emigration. Land use within city boundaries has changed dynamically, accommodating development while replacing traditional land-use patterns. Using Landsat-8 and IRS-P6 data, this study investigated land-use changes in urban and peri-urban Hyderabad and their influence on land-use and land-cover. Advanced methods, such as spectral matching techniques with ground information were deployed in the analysis. From 2005 to 2016, the wastewater-irrigated area adjacent to the Musi river increased from 15,553 to 20,573 hectares, with concurrent expansion of the city boundaries from 38,863 to 80,111 hectares. Opportunistic shifts in land-use, especially related to wastewater-irrigated agriculture, emerged in response to growing demand for fresh vegetables and urban livestock feed, and to easy access to markets due to the city’s expansion. Validation performed on the land-use maps developed revealed 80–85% accuracy.
2 Gotor, E.; Nedumaran, S.; Cenacchi, N.; Tran, N.; Dunston, S.; Dermawan, A.; Valera, H.; Wiberg, David; Tesfaye, K.; Mausch, K.; Langan, Simon. 2021. Land and water systems: looking to the future and a more resilient and sustainable society and environment. SocArXiv. 24p. [doi: https://doi.org/10.31235/osf.io/ajs6q]
Land management ; Water systems ; Water management ; Resilience ; Sustainability ; Society ; Climate change adaptation ; Climate change mitigation ; Water resources ; Models
(Location: IWMI HQ Call no: e-copy only Record No: H050899)
(1.01 MB) (1.01 MB)
Food, land, and water systems are facing unprecedented change. The world’s population is projected to grow to approximately 10 billion people by 2050, while aging and declining in some regions. Global average incomes are expected to keep increasing at a slow but steady pace. With increasing incomes and the ability of consumers to purchase more and better food in combination with population growth, food demand is projected to grow substantially over the next three decades. Meanwhile, demographic changes and economic development also drive urbanization, migration, and structural transformation of rural communities. At the same time changes to precipitation and temperature as well as the occurrence of extreme events driven by climate change are becoming more prevalent and impacting society and the environment. Currently, humanity is approaching or exceeding planetary boundaries in some areas, with over-use of limited productive natural resources such as water and phosphate, net emissions of greenhouse gases, and decreases in biodiversity.
Much is published about food and agriculture and the supporting/underpinning land and water systems, but no single source focuses regularly and systematically on the future of agriculture and food systems, particularly on the challenges and opportunities faced by developing countries. This working paper is part of an effort by the CGIAR foresight team to help fill that gap. The effort recognizes that there is much to learn from past experience, and there are clearly many urgent and immediate challenges, but given the pace and complexity of change we are currently experiencing, there is also an increasing need to look carefully into the future of food, land, and water systems to inform decision making today.
Much is published about food and agriculture and the supporting/underpinning land and water systems, but no single source focuses regularly and systematically on the future of agriculture and food systems, particularly on the challenges and opportunities faced by developing countries. This working paper is part of an effort by the CGIAR foresight team to help fill that gap. The effort recognizes that there is much to learn from past experience, and there are clearly many urgent and immediate challenges, but given the pace and complexity of change we are currently experiencing, there is also an increasing need to look carefully into the future of food, land, and water systems to inform decision making today.
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