Pine trees (0)

Lõik failist

Sarnased õppematerjalid

17

pptx

Different types of forests and their forms of usage.

Different types of forests and their forms of usage TARTU 2010  Forest A forest (also called a wood, woodland, wold, weald, holt, frith) is an area with a high density of trees. Forests cover approximately 30% of land and 9.4% of all the planet earth. They are also responsible for regulating our planet's climate and act as large purifiers of airs, by absorbing carbon dioxide, and giving out oxygen.  Different types of forests Forests are divided into following main types: o Tropical forest o Subtropical forest o Plantations o Boreal forest o Temperate forest o Seasonal or monsoon forest  Tropical and Subtropical Forests

Geograafia

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doc

Metsatüübid

of the layer soil with fine texture and the duration of the period of superfluous 2 moisture. (Metsa kasvutingimused sõltuvad suuresti peene struktuuriga mullakihi tüsedusest ja liigse niiskusperioodi kestusest.)(Seda tüüpi metsade kooslus sõltub mullakihi tüseduasest ja peene tekstuuriga mullakihist, liigniiske perioodi kestvusest. The stands are mostly sparse pine forests belonging to the quality class IV ...V. Puistud on enamasti hõredad männimetsad, kuuludes boniteediklassi IV..V. The undergrowth consists of juniper, mountain currant, guelder rose, alder buckthorn, sporadically also shrubby cinquefoil. Alusmets koosneb kadakast, magesõstrast, harilikust lodjapuust, harilikust paakspuust, kohati ka maranapuhmastest. The ground vegetation is very varied, the most frequent species being: blue moor grass, glaucous sledge, tufted hair grass, tormentil

Inglise keel

46

pdf

wood properties

Bird Peck 4–33 ties vary considerably, even in clear material. This chapter provides information, where possible, on the nature and Extractives 4–33 magnitude of variability in properties. Properties of Timber From Dead Trees 4–33 Effects of Manufacturing and Service Environments 4–34 This chapter also includes a discussion of the effect of growth Moisture Content 4–34 features, such as knots and slope of grain, on clear wood Temperature 4–35 properties. The effects of manufacturing and service environ-

Ehitus materjalid ja konstruktsioonid

5

doc

Savanna

Savanna A savanna is a grassland ecosystem with scattered trees or shrubs. In savannas trees are small or widely spaced so that the canopy does not close. It is often believed that savannas are characterized by widely spaced, scattered trees, however in many savanna communities tree densities are higher and trees are more regularly spaced than in forest communities. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses. Savannas are also characterised by seasonal water availability, with the majority of rainfall being confined to one season of the year. Savannas can be associated with several types of biomes. Savannas are frequently seen as a transitional zone, occurring between forest and desert or prairie.

Inglise keel

5

doc

Estonia

and Finland in the north. The territory of Estonia covers 45,227km2 The Estonian climate resembles that of other countries on the Baltic littoral. On account of the country's proximity to the sea, the skies are often cloudy, and rain often falls in the spring and autumn, in the winter the rain turns to snow. The highest point in Estonia is Suur Munamäg It is in fact the highest point in the Baltic region Forest cover over one half of Estonia. The most common types of tree are pine, spruce and birch. Estonia, along with Finland and Sweden are the countries with the greatest percentage of forested land. Forest management and wood production are particularly important for the Estonian economy. One third of Estonian forests are protected areas. In these protected forests you can come across types of primeval forest cover, which have long ago disappeared from other parts of Europe. Examples of such primeval forests are the Järvselja forest in Tartumaa

Inglise keel

12

ppt

USA - west coast

the 1840s. Oregon became a state (33rd) on February 14, 1859. · Oregon enjoys a diverse landscape including a scenic and windswept Pacific coastline, the volcanoes of a rugged and glaciated Cascade Mountain Range, dense evergreen forests, and high desert across much of the eastern portion of the state. · The towering Douglas firs and redwoods along the rainy Western Oregon coast provide a dramatic contrast with the lower density and fire prone pine tree and juniper forests covering portions of the Eastern half of the state. The eastern portion of the state also includes semiarid scrublands, prairies, deserts, and meadows. These drier areas stretch east from Central Oregon. Mount Hood is the highest point in the state at 11,239 feet (3,425 m) above sea-level. Crater Lake National Park is the only National Park in Oregon.  Arizona

Maiskonnalugu

9

doc

Estonia topic

In Lake Peipsi you can find rare species of fish such as the lake whitefish and the Peipsi smelt. Võrtsjärv is famous for its catches of pike-perch and eel, which are regarded as a delicacy. Estonia has more than 7 000 rivers, streams and drainage ditches. Only nine are over 100 km in length. The longest, at 162 km, is the Võhandu River in the southeast, followed by the Pärnu, Põltsamaa and Pedja rivers. Forests Forest covers around one half of Estonia. The most common types of tree are pine, spruce and birch. The forests are rich in game. The forests contain elk, roe deer, wild boar, beavers, lynxes, bears and wolves. Estonia, along with Finland and Sweden are the countries with the greatest percentage of forest. Forest management and wood production are particularly important for the Estonian economy. Meadows Meadows in Estonia are much richer in different species than western Europe, and in summer

Inglise keel

7

odp

European yew - plant in Estonia

coldness and eventually heart failure. However, death occurs so rapidly that many times the symptoms are missed. Fatal poisoning in humans is very rare, only occurring after eating a lot of yew foliage.  Traditional uses In recent years it has been found that taxol, a chemical found in the bark of the yew, inhibits cell growth and cell division, and may have some promise in the fight against cancer. It was also one of the most important trees in the history of European warfare, as its wood was used exclusively for the making of the longbows, spears and dagger handles. In the past they were used as landmarks, because of their size and longevity, and their dark branches would make them stand out in the landscape. It is excellent for furniture making, interior, fences, gates, chairs, doors, tables, and rustic furniture.  Where the Yew Grows It is also possible to find small trees growing near bigger trees, which

Inglise kirjandus

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