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Ecohydrological landscape management for human well-being.
Stockholm University, Faculty of Science, Department of Systems Ecology.
Stockholm University, Stockholm Resilience Centre.
2002 (English)In: Water International, ISSN 0250-8060, Vol. 25, no 2, 178-184 p.Article in journal (Refereed) Published
Abstract [en]

This paper introduces a new perspective on water resources emphasizing the role of water vapor flows for human well-being. The connections between freshwater and ecosystem services in terrestrial environments are addressed, particularly the role of freshwater for the biota that sustains the flow of ecosystem services and the role of the biota that modifies freshwater flows. First, the water dependence of terrestrial ecosystem sewices and food production are analyzed. Secondly, two examples of unintentional, large-scale, water-mediated cascading effects related to ecosystem services that result from local, uncoordinated decisions in Australia and South Africa are discussed These two countries are taking the lead in the management of freshwater flows and terrestrial ecosystem services. Issues including potential conflicts of interest and trade-offs between food (or timber) production and ecosystem sewices at the catchment scale are taken into account. A world-wine, intentional ecohydrological landscape approach to handle these issues is suggested. One important step towards a more integrated approach to freshwater is the development of flexible institutional structures

Place, publisher, year, edition, pages
Illinois: INT WATER RESOURCES ASSOC , 2002. Vol. 25, no 2, 178-184 p.
Keyword [en]
ecohydrology; ecosystem services; ecosystem management; water resources
National Category
Water Engineering
URN: urn:nbn:se:su:diva-23130OAI: diva2:190303
Part of urn:nbn:se:su:diva-16Available from: 2003-11-22 Created: 2003-11-22 Last updated: 2009-12-21Bibliographically approved
In thesis
1. Land Use, Freshwater Flows and Ecosystem Services in an Era of Global Change
Open this publication in new window or tab >>Land Use, Freshwater Flows and Ecosystem Services in an Era of Global Change
2003 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The purpose of this thesis is to analyse interactions between freshwater flows, terrestrial ecosystems and human well-being. Freshwater management and policy has mainly focused on the liquid water part (surface and ground water run off) of the hydrological cycle including aquatic ecosystems. Although of great significance, this thesis shows that such a focus will not be sufficient for coping with freshwater related social-ecological vulnerability. The thesis illustrates that the terrestrial component of the hydrological cycle, reflected in vapour flows (or evapotranspiration), serves multiple functions in the human life-support system. A broader understanding of the interactions between terrestrial systems and freshwater flows is particularly important in light of present widespread land cover change in terrestrial ecosystems.

The water vapour flows from continental ecosystems were quantified at a global scale in Paper I of the thesis. It was estimated that in order to sustain the majority of global terrestrial ecosystem services on which humanity depends, an annual water vapour flow of 63 000 km3/yr is needed, including 6800 km3/yr for crop production. In comparison, the annual human withdrawal of liquid water amounts to roughly 4000 km3/yr. A potential conflict between freshwater for future food production and for terrestrial ecosystem services was identified.

Human redistribution of water vapour flows as a consequence of long-term land cover change was addressed at both continental (Australia) (Paper II) and global scales (Paper III). It was estimated that the annual vapour flow had decreased by 10% in Australia during the last 200 years. This is due to a decrease in woody vegetation for agricultural production. The reduction in vapour flows has caused severe problems with salinity of soils and rivers. The human-induced alteration of vapour flows was estimated at more than 15 times the volume of human-induced change in liquid water (Paper II).

Place, publisher, year, edition, pages
Institutionen för systemekologi, 2003. 34 p.
freshwater, green water, ecosystem services, integrated water resources management, food production, land use and land cover change, vulnerability, resilience, hydrological cycle, global change, Australia
National Category
urn:nbn:se:su:diva-16 (URN)91-7265-755-3 (ISBN)
Public defence
2003-11-07, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 8 C, Stockholm, 10:00
Available from: 2003-11-22 Created: 2003-11-22Bibliographically approved

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Gordon, LineFolke, Carl
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