Vegetation and slope stability — are interrelated by the ability of the plant life growing on slopes to both promote and hinder the stability of the slope. The relationship is a complex combination of the type of soil, the rainfall regime, the plant species present, the slope… … Wikipedia
Erosion prediction — Soil erosion prediction models play an important role both in meeting practical needs of soil conservation goals and in advancing the scientific understanding of soil erosion processes. They are used to help land managers choose practices to… … Wikipedia
Wildfire — This article is about uncontrolled outdoor fire. For the New York rock band, see Forest Fire (band). For other uses, see Wildfire (disambiguation). Crown Fire redirects here. For the 2010 wildfire in Southern California, see 2010 California… … Wikipedia
Orography — (from the Greek όρος, hill, γραφία, to write) is the study of the formation and relief of mountains,[1] and can more broadly include hills, and any part of a region s elevated terrain.[2] Orography (also known as oreography, orology or oreology)… … Wikipedia
Logistic function — A logistic function or logistic curve is the most common sigmoid curve. It modelsthe S curve of growth of some set P . The initial stage of growth is approximately exponential; then, as saturation begins, the growth slows, and at maturity, growth … Wikipedia
GEOGRAPHICAL SURVEY — Names The name Ereẓ Israel (the Land of Israel) designates the land which, according to the Bible was promised as an inheritance to the Israelite tribes. In the course of time it came to be regarded first by the Jews and then also by the… … Encyclopedia of Judaism
Backcountry snowboarding — is a unique sport that is rapidly growing in popularity. The sport of backcountry snowboarding is characterized by the fresh tracks and deep powder that only the slopes of a remote mountainside can offer. The sport is a completely separate… … Wikipedia
river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… … Universalium
production, theory of — ▪ economics Introduction in economics, an effort to explain the principles by which a business firm decides how much of each commodity that it sells (its “outputs” or “products”) it will produce, and how much of each kind of labour, raw… … Universalium
analysis — /euh nal euh sis/, n., pl. analyses / seez /. 1. the separating of any material or abstract entity into its constituent elements (opposed to synthesis). 2. this process as a method of studying the nature of something or of determining its… … Universalium
Avalanche — This article refers to the natural event. For other uses, see Avalanche (disambiguation) An avalanche is an abrupt and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are among the biggest dangers in the… … Wikipedia