Earth Floor: Biomes Deciduous Forest The mid-latitude deciduous forest biome is located between the polar regions and the tropics. Because of its location, air masses from both the cold polar region and the warm tropical region contribute to the changes of climate in this biome. Photo © 2000-www.arttoday.com Mid-latitude deciduous forests have both a warm and a cold season (see climograph). "Deciduous" means to fall off, or shed, seasonally. Back | Next
Deciduous Forest Deciduous biomes are located primarily in the eastern half of the United States, Canada, Europe, parts of Russia, China, and Japan. Climate The average temperature of the forest is about 50 degrees F. Animals Precipitation in the temperate deciduous forest is spread throughout the year. More Pictures of Deciduous Forest Animals: Aspic Viper Cardinal Gray Squirrel Raccoon Vegetation In the deciduous forest there are many flowers like the passion berry and the blue lily. The Deciduous forest does not have much vegetation but there are many trees that contain outrageous amounts of flowers. More Pictures of Deciduous Forest Vegetation: Dog Wood Leaves Fringe Leaf Ginkgo Leaves Health Issues Despite decreasing financial support, the International Red Cross Federation has distributed 100 tons of barley seeds in 11 areas of the Democratic People's Republic of Korea (DPRK). Also in areas around us, Eugene/Springfield, Oregon, flooding has become a huge problem, and the Red Cross has helped the victims.
How tall can a tree grow? - Valentin Hammoudi As explained in this lesson, at the base of the tree the phloem sap has delivered most of its sugar and is therefore quite watery. Just next to it, the xylem sap is rich in minerals, which were mostly absorbed by the roots. This unbalanced rate of water between phloem and xylem leads to water movement from the first one to the latter one, due to a phenomenon called osmosis. Unsurprisingly, a mirrored water exchange takes place at the top of the tree. Once it has delivered its nutrients and reached the tree’s top, the xylem sap is very watery, and by a similar osmotic movement, water goes from the xylem to the phloem enabling the production of new phloem sap. As water gets evaporated at the leaves, the pressure inside the xylem rises which creates the so-called follicular aspiration making the xylem sap move upwards. One of the additional characteristic of this circulatory system is its extreme low energy cost.
Temperate Deciduous Forest The Temperate Deciduous Forest The temperate deciduous forest occupies much of the middle of the Whittaker diagram, and to those of us who live here, it sure feels that way. Rapid changes from cold and dry to wet and warm or to any of the other corners of the climate envelope are often swift and dramatic. A favorite saying among the natives is "if you don't like the weather, wait a minute". As the diagram indicates, the average annual temperature ranges up to about 20 C down to freezing. Southern Ohio has a different feel to it. More on Forests - Forests in Europe Back UW - Brockman Memorial Tree Tour Dedication This tour is dedicated to the memory of Professor C. Frank Brockman (1902-1985), who capped an influential, productive career in forestry and outdoor recreation by producing in 1980 the original University of Washington tree tour. Edited by Louise M. Hastie, that eight-page publication featured 81 campus trees, and had to be reprinted by popular demand. Introduction About 480 different kinds of trees beautify the U.W. If you are using the print version of the Brockman Memorial Tree Tour, please see the addendum to the print booklet. Acknowledgements The C. Conceptual design: Suzanne Hellmuth and Jock Reynolds Tree tour text: Arthur Lee Jacobson and Carly Thornburg Editing: Sara Shores, Margaret Nailen, Seth Cowdery, Ellen Perry, Nora Strothman, Jessie Heasley, Linda Hanlon, Al Wagar, Ruth Thornburg, Dr. The C. These fine botanical resources and others exist on the UW campus due to the commitment of the University and the hard work of many generous volunteers. Works Cited
Glossaire de terminologie foresti re Débardeur: Engin forestier automoteur à châssis articulé, utilisé pour les opérations de débardage. Skidder Index Déboisement : Défricher un terrain forestier pour l'utilisation à long-terme (autre que la foresterie). Index Dendrologie (forestière) : Étude et identification des arbres. Dérivé/composés phénoliques : Substances organiques très complexes qui se trouvent dans toutes les plantes en concentration, dosage et rapport divers. Désertification : Transformation de régions arides ou semi-arides autrefois productives en déserts par suite d’une sécheresse prolongée ou d’un mauvais aménagement à long terme des ressources aquatiques et terrestres. Développement durable des forêts : Développement des forêts en fonction des besoins actuels sans nuire à leur productivité future, à leur diversité écologique ou à leur capacité de régénération. Dioxide de carbone :(CO2 ) Gaz incolore, inodore et incom-bustible. Domaine vital : Exigences d'espace vital d'une espèce donnée.
Glossaire | Forêt Investissement Abroutissement(s) Dégâts sur les plantations, liés à la consommation des pousses d’arbres par le bétail ou le gibier. Accompagnement (ou bourrage) Végétation ligneuse introduite ou laissée autour d'une tige avec l’objectif de gainer celle-ci. N’ayant pas de but propre de production, elle sera rabattue pour ne pas gêner le plant par la suite. Accroissement Augmentation des dimensions et du volume des arbres. Accroissement courant en volume : Différence de volume entre deux années successives.Accroissement moyen du volume : Moyenne réalisée sur plusieurs années Accru naturel Peuplement forestier obtenu par la colonisation naturelle d’un terrain dont l’utilisation précédente a été abandonnée (déprise des terres agricoles). Affranchi Se dit d’un rejet de taillis ou d’un drageon qui, en grossissant, s’est suffisamment enraciné pour prendre son indépendance vis-à-vis de la souche-mère. Agroforesterie Amélioration (coupe d’amélioration) Aménagement forestier Amendement Andainage Arbre Arbre de place Assiette
Forest*A*Syst Glossary of Common Forestry Terms Access road A temporary or permanent access route. Aesthetics An individual's appreciation of the forest landscape for its unique and varied components without regard to its utility or monetary value. Agroforestry The intentional act of combining agriculture and forestry to create integrated and sustainable land-use system. Alleycropping The planting of rows of trees and/or shrubs (single or multiple) at wide spacing, creating alleyways within which agricultural crops or horticultural crops are produced. Bedding A site preparation method using special equipment to form soil and forest litter into a ridge six to 10 inches high and 3 to 4 feet wide, on which tree seedlings are planted. Best Management Practices (BMP's) Effective economical practices associated with silvicultural operations that minimize nonpoint source pollution (soil erosion and stream sedimentation). Broad base dip A shallow depression constructed diagonally across a road to remove storm water runoff.
International Day of Happiness You might think the International Day of Happiness is a day to practise positive thinking or to give thanks for the things in your life that make you happy. But it's actually a United Nations project which has a more serious purpose. The UN thinks happiness will only be for everyone when the people of the world are equal. Why 20 March? On this date (and also on 23 September), the centre of the sun is directly above the Earth's equator, which is called an equinox. On the equinox, day and night last for almost equal time all over the Earth. How did the idea start? The idea goes back to 1972, when the King of Bhutan, Jigme Singye Wangchuck, said that we should measure a country's progress by its happiness and not just how much it produces or how much money it makes. The man behind the International Day of Happiness In 2011, a UN adviser called Jayme Illien suggested the idea of an international day to increase happiness. The World Happiness Report Source Why 20 March?