aridity


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aridity

[ə′rid·əd·ē]
(climatology)
The degree to which a climate lacks effective, life-promoting moisture.
References in periodicals archive ?
Some species simply avoid aridity by living in riparian habitats, or by being active or growing only during the desert's brief wet periods.
Massive decline in forest cover from around 35 percent at the turn of the century to around 3 percent today is blamed for the loss of species; deforestation deprives wildlife of habitat and increases aridity.
Drawing his mental border of the American West at the one hundredth meridian (the "line of aridity"), Szasz surveys the history of religious institutional development from the Dakotas down through Texas and over to the Pacific Coast.
Environmental factors that have been hypothesized to be important in the evolution of the genus are temperature and aridity, herbivory by mammalian grazers, and different types of pollinators (Ezcurra & Crisci, 1987; Ezcurra et al., 1997).
Terra Fria winters match the aridity of the land, but the resourcefulness of its people has made the region bountiful.
"They play into the hands of demagogues who would like nothing better than to see waves of violence and destruction engulf all those countries, East and West, which hold such values dear, as they stand as constant reminders of the falseness and aridity of their own miserable world view." He added that Europe, with its relatively good record in the field of human rights, has no right to feel smug or morally superior about this.
And the aridity means that not many people, plants or animals can live in a given area.
Furthermore, changes in such strategies employed through time were not uni-directional but changed back and forth in relation to major fluctuations in environmental variability and aridity. From preliminary analysis of three excavated assemblages, it appears that this occurred as a gradual shift, from an early-to-mid-Holocene provisioning of places with cores at around 4000-5000 years ago, to the provisioning of individuals with transportable tool-kit by around 3000 years ago (Kuhn 1995).
But this audio book carries enough weight that the listener will be able to find value beyond the aridity and gain appreciation and empowerment from the message.
Severe aridity and wind turbulence led to the abandonment of great civilizations from the Aegean Sea, Egypt, Mesopotamia, and northern India (3).
This paper tests the hypotheses (1) that aridity (potential transpiration [E.sub.p]/rainfall P) in tropical alpine environments can be high despite low temperatures, and (2) that aridity in tropical alpine environments may be correlated with scleromorphic habit.
By choosing flowering plants that tolerate heat, aridity, and poor soil, Arnold was able to create a dazzling "lemonade" garden for owners Helen and Tom McCrea.