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Titolo:
Assessment of green water flows to sustain major biomes of the world: Implications for future ecohydrological landscape management
Autore:
Rockstrom, J; Gordon, L;
Indirizzi:
IHE Delft, NL-2601 DA Delft, Netherlands IHE Delft Delft Netherlands NL-2601 DA ft, NL-2601 DA Delft, Netherlands Univ Stockholm, Dept Syst Ecol, S-10691 Stockholm, Sweden Univ Stockholm Stockholm Sweden S-10691 Ecol, S-10691 Stockholm, Sweden
Titolo Testata:
PHYSICS AND CHEMISTRY OF THE EARTH PART B-HYDROLOGY OCEANS AND ATMOSPHERE
fascicolo: 11-12, volume: 26, anno: 2001,
pagine: 843 - 851
SICI:
1464-1909(2001)26:11-12<843:AOGWFT>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN APPROPRIATION; ECOSYSTEM SERVICES; CROP PRODUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Rockstrom, J IHE Delft, POB 3015, NL-2601 DA Delft, Netherlands IHE Delft POB 3015 Delft Netherlands NL-2601 DA Netherlands
Citazione:
J. Rockstrom e L. Gordon, "Assessment of green water flows to sustain major biomes of the world: Implications for future ecohydrological landscape management", PHYS CH P B, 26(11-12), 2001, pp. 843-851

Abstract

Global freshwater assessments tend to focus primarily on water flow in perennial rivers, lakes, and groundwater, so called blue water in the hydrological cycle. Little attention is paid to the role of green water, or vapour flows, in sustaining the generation of terrestrial ecosystem services, including biomass production. Ecosystem services (such as carbon sequestration,nutrient retention, pollination and pest control) are generated by ecological processes in different biomes of the World and essential for socio-economic development. In this paper we critically assess the limitations of thepast blue water bias for future ecohydrological landscape management. We present results from an effort of quantifying continental green water fluxesfor major terrestrial biomes indicating that the large biomes, generating essential ecosystem services depend on more than 90 % of the total average terrestrial return flow of green water to the atmosphere. The paper discusses the future implications of such large dependence on green water fluxes, and options of improving efficiency in water resources management. It points at the need of avoiding sectoral management and calls for an ecohydrological landscape management based on both ecological and hydrological knowledge. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 10:12:14