Throughfall

Throughfall

In Hydrology, throughfall is the process which describes how wet leaves shed excess water onto the ground surface. These drops have an erosive power because they are larger than rain drops, however, if they travel a shorter distance their erosive power is reduced. In the case of a high canopy, higher then what is required for the drops to reach terminal velocity, about 8 meters, the erosive power is increased.

Rates of throughfall are higher in areas of forest where the leaves are broad-leaved, this is because the flat leaves allow water to collect. Rates of throughfall are lower in coniferous forests as conifers can only hold individual droplets of water on their needles.

Throughfall can be reduced and prevented through the means of a cutback in green house emissions. It can be reduced because the main cause of throughfall is, in fact, global warming.

ources

Concepts about Forests and Water by Gordon Stuart, and Pamela J.Edwards


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Throughfall — Als Kronendurchlass bezeichnet man in der Hydrologie den Niederschlag, der durch das Kronendach eines Baumbestandes fällt. Zusammen mit dem Stammabfluss ergibt er den Bestandsniederschlag, das heißt den Niederschlag unter einem Kronen bzw.… …   Deutsch Wikipedia

  • throughfall — noun The shedding of excess water from leaves to the ground …   Wiktionary

  • throughfall —   precipitation falling through the vegetation cover to the surface. It is slowed by collisions with leaves and branches but does not get fully intercepted by them …   Geography glossary

  • throughfall —    A part of precipitation that reaches ground by falling through vegetative cover [16] …   Lexicon of Cave and Karst Terminology

  • throughfall — ˈ ̷ ̷ˌ ̷ ̷ noun : rainfall in a forest area that is not intercepted by the crown canopy and reaches the forest floor …   Useful english dictionary

  • Erosion — is the carrying away or displacement of solids (sediment, soil, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down slope movement in response to gravity or by living organisms (in the case …   Wikipedia

  • Spotted Owl — northern race plumage Conservation status …   Wikipedia

  • Throughflow — In Hydrology, throughflow is the movement of water horizontally beneath the land surface. It occurs once water has infiltrated the soil, the water moves downwards under gravity and because the soil becomes more compact and less permeable with… …   Wikipedia

  • Sparriger Runzelbruder — Moose Torfmoos (Sphagnum squarrosum) Systematik Domäne: Eukaryoten (Eucaryota) …   Deutsch Wikipedia

  • Stammabfluss — Als Stammabfluss bezeichnet man in der Hydrologie den Anteil des Niederschlags, der von den Baumkronen zum Stamm abgeleitet wird. Das Wasser fließt dabei entlang des Stammes nach unten ab. Zusammen mit dem Kronendurchlass, dem sogenannten… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”