Your search found 10 records
1 Nagabhatla, Nidhi; Pattnaik, C.; Senaratna Sellamuttu, Sonali; Prasad, N.; Wickramasuriya, R.; Finlayson, M.. 2009. Investigation of aquaculture dynamics at a Ramsar site, using earth observation systems in conjunction with a socio-economic assessment. Lakes and Reservoirs: Research and Management, 14(4):325-336. [doi: https://doi.org/10.1111/j.1440-1770.2009.00413.x]
Aquaculture ; Dynamics ; Wetlands ; Lakes ; Ecosystems ; Mapping ; Remote sensing / India / Kolleru Lake / Andhra Pradesh
(Location: IWMI HQ Call no: e-copy only Record No: H042523)
(0.37 MB)
This study presents a comprehensive site-scale analysis conducted within the global wetland inventory and mapping (GWIM) project. GWIM was developed and promoted by the International Water Management Institute (IWMI) through global partnerships to investigate wetland analyses at multiple scales. The present study investigates the complexity of an inland freshwater wetland system, presenting a conceptual framework for mapping and monitoring the dynamics of Lake Kolleru (a wetland of international importance, as defined by the Ramsar Convention), utilizing a geospatial platform. Illustrating the pace of land use changes leading to the progressive elimination of the wetland ecosystem of freshwater Lake Kolleru, this study also highlights the impacts of such changes on the socio-economic system. A comprehensive temporal analysis (1977-2007) provided a structural base to schematically analyse the dynamics of biophysical and ecological changes to the wetland by effectively using a spectrum of remote sensing data. The present status and changing trends in ecological dimensions of Lake Kolleru were illustrated, utilizing information from spatial analyses, complimented with socio-economic assessment. Attention is drawn to the potential of utilizing earth resources systems in exploring space-time interactions in freshwater ecosystems heavily modified through aquaculture interventions. Further, the spatial derivatives are meant as reference material for local authorities and decision-makers to rehabilitate the economic livelihood activities to the social community dependent on the lake ecosystem. The disseminated message emphasizes the applicability of geospatial tools to enhance the efficacy of the decision-making process by facilitating regular monitoring of ecosystem dynamics and providing updated information on wetland patterns and uses.
2 Rebelo, Lisa-Maria; Finlayson, M.. 2010. Characterization of inland wetlands in Africa: K&C science report – phase 1. In Japan Aerospace Exploration Agency (JAXA), Earth Observation Research Center (EORC). The ALOS Kyoto & Carbon Initiative Science Team Reports, Phase 1 (2006-2008): wetlands theme reports. Tsukuba-shi, Japan: Japan Aerospace Exploration Agency (JAXA), Earth Observation Research Center (EORC) pp.140-146.
Wetlands ; Mapping ; Ecosystems ; Flooding ; Hydrology ; Vegetation ; Lakes ; Remote sensing / Africa / Malawi / Mozambique / Lake Chilwa / Lake Urema
(Location: IWMI HQ Call no: 333.91 G100 JAP Record No: H042473)
http://www.eorc.jaxa.jp/ALOS/kyoto/ref/KC_Phase-1_ScienceTeamReports_JAXA-EORC_NDX-100003.pdf
https://vlibrary.iwmi.org/pdf/H042473.pdf
https://vlibrary.iwmi.org/pdf/H042473.pdf
(0.67 MB) (34.49 MB)
Inland wetlands occur extensively across Sub-Saharan Africa. These ecosystems typically play a vital role in supporting rural populations and their sustainable management is thus critical. In order to prevent depletion of resources and ecosystem services provided by these wetlands, a balance is required between ecological and socio-economic factors. The sustainable management of wetlands requires information describing these ecosystems at multiple spatial and temporal scales. However, many southern and eastern African countries lack regional baseline information on the temporal extent, distribution and characteristics of wetlands. PALSAR data provides invaluable information related to the flooding patterns and vegetation characteristics of these wetlands, and is being used to document and characterise specific sites within the region which have been identified due to their vulnerability to both climatic variability and agricultural activities. The information derived from the PALSAR data is needed to assist managers in making decisions about future land uses in wetlands that are intensively used for agriculture and fisheries, and which are an important natural resource for local communities.
3 Finlayson, M.; Atapattu, Sithara S. 2009. Unit nine - Water and ecosystems. [Training/Course material]. In Smith, L. (Ed.). C126 - Water resources management. 10 units. [Training/Course material]. London, UK: University of London. School of Oriental and African Studies (SOAS); Centre for Development, Environment and Policy (CeDEP); Colombo, Sri Lanka: International Water Management Institute (IWMI). 48p.
Water resource management ; Ecosystems ; Aquatic environment ; Ecology ; Natural resources ; Biodiversity ; Wetlands ; Environmental flows
(Location: IWMI HQ Call no: CD Col. Record No: H043425)
(1.41 MB)
This unit provides an introduction to the key concepts and issues associated with managing water for ecosystems. ‘Aquatic ecosystems’ is a wide term that includes a range of inland, coastal and marine ecosystems but for the purpose of this module we will concentrate on inland and coastal aquatic ecosystems. Section 1 begins by outlining the natural resources provided by ecosystems and linkages with poverty by identifying the interdependencies and the importance of water. Section 2 details the ecology of aquatic ecosystems and their structure, processes and biodiversity. Section 3 takes a further step and describes the ecosystem services provided by these ecosystems. Section 4 looks at the over-exploitation of the services provided by aquatic ecosystems and how this can lead to ecosystem degradation. The final section concludes the unit by summarising scenarios and management response options. This unit includes an extended listing of recommendations for further reading with brief commentaries on each. These can extend study for the core topics of this unit but also cut across many of the topics covered in earlier units, given the linkages and interdependencies between water for nature and other human uses of water. Students should review the commentaries on these readings but only use this extended listing of reading as a resource to pursue specific interests as far as time allows. Concentration of study on the unit text and recommended Key Readings is sufficient for the examinations. Unit aims: To introduce the concept of natural resources with water being an important resource that supports both the livelihoods of the rural poor and aquatic ecosystems, whilst understanding their inter-linkages and interdependencies; To introduce key concepts of aquatic ecology by describing the variations and structure, the processes, species and genes, and inter-linkages; To introduce the concept of ‘ecosystem services’ in the context of aquatic ecosystems and to describe the role these play in maintaining the resource as well as supporting livelihoods of the rural poor; To provide an understanding of the key drivers of degradation and impacts on aquatic ecosystems and to describe available assessment tools and identify management approaches.
4 Nagabhatla, Nidhi; Wickramasuriya, R.; Prasad, N.; Finlayson, M.. 2010. A multi-scale geospatial study of wetlands distribution and agricultural zones, and the case of India. Tropical Conservation Science, 3(3):344-360.
(Location: IWMI HQ Call no: e-copy only Record No: H043503)
http://tropicalconservationscience.mongabay.com/content/v3/10-09-27_344-360_Nagabhatla_et_al.pdf
https://vlibrary.iwmi.org/pdf/H043503.pdf
https://vlibrary.iwmi.org/pdf/H043503.pdf
(0.67 MB)
This paper highlights the global and the regional scale representation of wetlands ecosystems using geospatial tools and multiple data sets. At global scale, the Ramsar database is investigated for representation of the wetlands sites of international importance against the “global agricultural zones” derived from the thematic aggregation of Global Irrigated Area Map databases. The analysis of “Ramsar sites” under cultivation reflects the present trend in wetlands use for agriculture. The scenario is also compared with the historical pattern derived from Vavilov’s food zones of 1926. Observed is an aggregate increase in cropped wetlands area from 25% (1926) to 43% (2006). The second component develops a regional partnership with Salim Ali Centre for Ornithology and Natural History in India. The partnership reviews the thematic national database of inland wetlands and “priority wetlands habitats” (PWH) in comparison with the bio-geographic and agro-ecological factors (regions/sub-regions) and by means of geographical information system (GIS) tools. We elaborate the strength of spatial tools to better understand the relationship between wetlands distribution and agricultural zones, both historically and at the present time. The disseminated message states, though from a technical perspective, the understanding of scale and resolution in combining information from diverse sources is essential; the effective implementation of spatial analysis requires a true cross-disciplinary approach. Complementing that, relevant policy support and appropriate institutional arrangements are fundamental to advance the management work required for unification of wetlands conservation with the existing challenges of food and livelihood security.
5 Nagabhatla, N.; Senaratna Sellamuttu, Sonali; Bobba, A. G.; Finlayson, M.; Wickramasuriya, R.; van Brakel, Martin; Prasad, S. N.; Pattanaik, C. 2012. Insight to Ecosystem Based Approach (EBA) at landscape level using a geospatial medium. Journal of the Indian Society of Remote Sensing, 40(1):47-64. [doi: https://doi.org/10.1007/s12524-011-0080-8]
Ecosystems ; Wetlands ; Landscape ; Multiple use ; Agroecology ; GIS ; Remote sensing ; Social aspects / Sri Lanka / India / Lake Kolleru / Muthurajawela Marsh / Negombo Lagoon
(Location: IWMI HQ Call no: e-copy only Record No: H044044)
(0.95 MB)
Ecosystem based approach (EBA) for resource management is a concerted, environmentally tuned and an integrated framework that holistically addresses the ecological character of the natural resource, its societal benefit spectrum and its environmental functions. In this paper, the EBA concept is closely linked with the emerging concept of multiple use systems (MUS) while taking account of environmental, economic, and social factors that govern the ecosystems services and benefits. We elucidate a multi-scalar approach and multiple case studies to understand EBA particularly in context of a wetlandscape. At the global scale, Ramsar sites of international importance are geospatially analyzed with reference to their agro-ecology and biodiversity. At regional scale, the agrarian use of inland wetlands in India was re-evaluated taking account of database from a recent inland wetland inventory. At the local scale, drawing on the landscape characterization and the ecological economics for fresh water Lake Kolleru in India and the Muthurajawela Marsh-Negombo Lagoon coastal marsh in Sri Lanka, we illustrate some of the practical challenges in balancing wetland conservation, development needs and the overall well-being of local people. We also discuss how variability in the scale, geophysical characteristics of the site and the data availability confines the ability to simplify a single complete approach to address issues in complex ecosystem such as wetlands. All levels of the study are supported by a variety of earth observation data and the geographical information system (GIS) tools. The site level analysis also draws on socio-economic assessment tools.
6 Molden, David; Vithanage, M.; de Fraiture, Charlotte; Faures, J. M.; Finlayson, M.; Gordon, L.; Molle, Francois; Peden, D.; Stentiford, D. 2011. Water availability and its use in agriculture. In Wilderer, P. (Ed.). Treatise on water science. Vol.4. Oxford, UK: Elsevier. pp. 707-732.
Water availability ; Water use ; Water scarcity ; Agriculture ; Water productivity ; Water demand ; Climate change ; River basin management ; Irrigated farming ; Rainfed farming ; Livestock ; Aquaculture ; Fisheries ; Ecosystems ; Health hazards ; Water governance
(Location: IWMI HQ Call no: e-copy only Record No: H044171)
(2.36 MB)
7 Boelee, Eline; Scherr, S. J.; Pert, P. L.; Barron, J.; Finlayson, M.; Descheemaeker, K.; Milder, J. C.; Fleiner, R.; Nguyen-Khoa, S.; Barchiesi, S.; Bunting, S. W.; Tharme, R. E.; Khaka, E.; Coates, D.; Solowey, E. M.; Lloyd, G. J.; Molden, D.; Cook, Simon. 2013. Management of water and agroecosystems in landscapes for sustainable food security. In Boelee, Eline. (Ed.). Managing water and agroecosystems for food security. Wallingford, UK: CABI. pp.156-170. (Comprehensive Assessment of Water Management in Agriculture Series 10)
Water management ; Water productivity ; Agroecosystems ; Landscape ; Food security ; Institutions ; Research priorities
(Location: IWMI HQ Call no: IWMI Record No: H046129)
(133 KB)
8 Finlayson, M.; Bunting, S. W.; Beveridge, M.; Tharme, R. E.; Nguyen-Khoa, S. 2013. Wetlands. In Boelee, Eline. (Ed.). Managing water and agroecosystems for food security. Wallingford, UK: CABI. pp.82-103. (Comprehensive Assessment of Water Management in Agriculture Series 10)
Wetlands ; Assessment ; Agroecosystems ; Food security ; Water security ; Aquaculture ; Fisheries ; Water productivity ; Water storage ; Rice ; Irrigation systems
(Location: IWMI HQ Call no: IWMI Record No: H046125)
(180 KB)
9 McCartney, Matthew; Finlayson, M.; de Silva, Sanjiv; Amerasinghe, Priyanie; Smakhtin, Vladimir. 2014. Sustainable development and ecosystem services. In van der Bliek, Julie; McCornick, Peter; Clarke, James (Eds.). On target for people and planet: setting and achieving water-related sustainable development goals. Colombo, Sri Lanka: International Water Management Institute (IWMI). pp.29-32.
Sustainable development ; Socioeconomic development ; Ecosystem services ; Living standards ; Wetlands ; Agriculture ; Reservoirs
(Location: IWMI HQ Call no: IWMI Record No: H046798)
(326 KB)
10 McCartney, Matthew; Finlayson, M.; de Silva, Sanjiv. 2015. Sustainable development and ecosystem services. New York, NY, USA: UN. Department of Economic and Social Affairs. 4p. (Global Sustainable Development Report Brief (GSDR))
Ecosystem services ; Environmental sustainability ; Sustainable development ; Natural resources ; Wetlands
(Location: IWMI HQ Call no: e-copy only Record No: H047234)
https://sustainabledevelopment.un.org/content/documents/629475-McCartney-Sustainable%20development%20and%20ecosystem%20services.pdf
https://vlibrary.iwmi.org/pdf/H047234.pdf
https://vlibrary.iwmi.org/pdf/H047234.pdf
(0.00 MB) (95.12 KB)
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