Temporary water resources

Water scarcity is a structural, persistent drought affecting resources and aquatic ecosystems, with implications in water quality and societal needs. Scarcity results in repeated drought episodes. While drought is a temporary (and often normally associated to climatic patterns) decrease in water resources, water scarcity occurs when water demand exceeds the water resources exploitable under sustainable conditions. 

Year-to-year variations in climate can also drive temporary imbalances in N supply and demand, particularly in water-limited systems. We evaluated this process by modifying the model above (Vitousek and Field, 1999) to include water as a resource—making production, decomposition, and losses all constrained ectuiva-lently by water supply. We ran the model with constant but low... 

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