Your search found 7 records
1 Villholth, Karen G. 2013. Integrated groundwater use and management in vulnerable coastal zones of Asia-Pacific. In Wetzelhuetter, C. (Ed.). Groundwater in the coastal zones of Asia-Pacific. Dordrecht, Netherlands: Springer. pp.317-342. (Coastal Research Library Volume 7)
(Location: IWMI HQ Call no: 551.457 G570 WET Record No: H046285)
(1.36 MB)
Groundwater in coastal zones around the globe is a critical asset in securing water, food and general development for millions of people. Particularly, in the Asia-Pacific region, such resources are significantly depended on in rural as well as urban areas for a wide range of uses, often as the only water source, which is exemplified by small island states. Present and future stresses on these significant, but often vulnerable systems, from human development, urbanization, climate change, and extreme events call for better understanding and awareness of these resources, their protection and best management approaches. The present chapter deals with the current level of knowledge of coastal groundwater systems in continental and island settings in the Asia-Pacific, their uses, vulnerabilities and hazards from various sources. The objective of the paper is to propose through an integrated framework approach how sustainable and resilient groundwater management can be promoted and enhanced. The work is partially based on the case of the tsunami in eastern Sri Lanka and the immense challenges but also opportunities it entailed for local and higher level groundwater management.
(Location: IWMI HQ Call no: IWMI Record No: H047293)
(0.45 MB)
3 Hellum, A.; Sithole, E.; Derman, B.; Mangwanya, L.; Rutsate, E. 2015. Zimbabwe’s urban water crisis and its implications for different women: emerging norms and practices in Harare’s High Density suburbs. In Hellum, A.; Kameri-Mbote, P.; van Koppen, Barbara. (Eds.) Water is life: women’s human rights in national and local water governance in southern and eastern Africa. Harare, Zimbabwe: Weaver Press. pp.347-383.
(Location: IWMI HQ Call no: IWMI Record No: H047305)
(Location: IWMI HQ Call no: e-copy only Record No: H047791)
(890 KB)
This paper focuses on the application of the concept of Integrated Water Resources Management (IWRM) in Tanzania. It asks: how did IWRM affect the rural and fast-growing majority of smallholder farmers' access to water which contributes directly to poverty alleviation and employment creation in a country where poverty and joblessness are high? Around 1990, there were both a strong government-led infrastructure development agenda and IWRM ingredients in place, including cost-recovery of state services aligning with the Structural Adjustment Programmes, water management according to basin boundaries and the dormant colonial water rights (permits) system. After the 1990s, the World Bank and other donors promoted IWRM with a strong focus on hydroelectric power development, River Basin Water Boards, transformation of the water right system into a taxation tool, and assessment of environmental flows. These practices became formalised in the National Water Policy (2002) and in the Water Resources Management Act (2009). Activities in the name of IWRM came to be closely associated with the post-2008 surge in large-scale land and water deals. Analysing 25 years of IWRM, the paper identifies the processes and identities of the losers (smallholders and – at least partially – the government) and the winners (large-scale water users, including recent investors). We conclude that, overall, IWRM harmed smallholders' access to water and rendered them more vulnerable to poverty and unemployment.
5 Drechsel, Pay; Hanjra, Munir A. (Eds.) 2018. Wastewater for agriculture, forestry and aquaculture - Section iv. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.548-774.
(Location: IWMI HQ Call no: IWMI Record No: H048676)
(6.99 MB)
6 Drechsel, Pay; Hanjra, Munir A. 2018. Suburban wastewater treatment designed for reuse and replication (Morocco) - Case Study. In Otoo, Miriam; Drechsel, Pay (Eds.). Resource recovery from waste: business models for energy, nutrient and water reuse in low- and middle-income countries. Oxon, UK: Routledge - Earthscan. pp.584-594.
(Location: IWMI HQ Call no: IWMI Record No: H048679)
(0.98 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H049774)
(7.14 MB)
Shadows are prevalent in urban environments, introducing high uncertainties to fine-scale urban land-cover mapping. In this study, we developed a Recurrent Shadow Attention Model (RSAM), capitalizing on state-of-the-art deep learning architectures, to retrieve fine-scale land-cover classes within cast and self shadows along the urban-rural gradient. The RSAM differs from the other existing shadow removal models by progressively refining the shadow detection result with two attention-based interacting modules – Shadow Detection Module (SDM) and Shadow Classification Module (SCM). To facilitate model training and validation, we also created a Shadow Semantic Annotation Database (SSAD) using the 1 m resolution (National Agriculture Imagery Program) NAIP aerial imagery. The SSAD comprises 103 image patches (500 × 500 pixels each) containing various types of shadows and six major land-cover classes – building, tree, grass/shrub, road, water, and farmland. Our results show an overall accuracy of 90.6% and Kappa of 0.82 for RSAM to extract the six land-cover classes within shadows. The model performance was stable along the urban-rural gradient, although it was slightly better in rural areas than in urban centers or suburban neighborhoods. Findings suggest that RSAM is a robust solution to eliminate the effects in high-resolution mapping both from cast and self shadows that have not received equal attention in previous studies.
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