An dëser Kategorie fannt dir all Artikelen zum Theema Klimazonen déi et op der Lëtzebuerger Wikipedia ze liese gëtt. Scandinavia lies at the same latitude as Alaska or Greenland, but the effect of the warm North Atlantic Current is even more pronounced here than it is in Britain and Ireland. The annual extreme minimum temperature is a useful indicator, but ultimately only one factor among many for plant growth and survival. In Central Europe, the relevant zones decrease from zone 8 on the Belgian, Dutch, and German North Sea coast, with the exception of some of the Frisian Islands (notably Vlieland and Terschelling), the island of Helgoland, and some of the islands in the Rhine-Scheldt estuary, which are in zone 9, to zone 5 around Suwałki, Podlachia on the far eastern border between Poland and Lithuania. Conversely, Fort Yukon, Alaska has the coldest hardiness zone for any city in the United States at 1a. Many zone boundaries were changed as a result of the more recent data, as well as new mapping methods and additional information gathered. The far northern portion on the central interior of the mainland have some of the coldest zones (zones 5, 4, and small area of zone 3) and often have much less consistent range of temperatures in winter due to being more continental, and thus the zone map has its limitations in these areas. Mount Isa has three climatic stations with more than a ten-year record. The Spanish and Portuguese Atlantic coast, much of Andalusia and Murcia, coastal and slightly inland southern Valencian Community, a part of coastal Catalonia, the Balearic Islands, southwestern Sardinia, most of Sicily, coastal southern Italy, some areas around Albania,[24][25] coastal Cyprus and southwestern Greece are in zone 10. The criterion is the average number of days per year when the temperature exceeds 30 °C (86 °F). Unless specifically noted, all zones in this section are USDA zones. Wikipedia® is een geregistreerd handelsmerk van de Wikimedia Foundation, Inc., een organisatie zonder winstoogmerk. Unless otherwise specified, "hardiness zone" or simply "zone" usually refers to the USDA scale. Afrika ist im Norden vom Mittelmeer, im Westen vom Atlantik, im Osten vom Indischen Ozean und dem Roten Meer umgeben. For example, a plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 °F (−1.1 °C) to 40 °F (4.4 °C). Klimazonerne siger blandt andet noget om frost, mængden af regn og plantevæksten. Wanneer men echter Noord- en Zuid-Amerika als één continent ziet, staat Afrika op de derde plaats. Er zijn ook landen die nog andere talen als officiële taal of talen hebben. Nord og syd for den brede tropezone omkring ækvator er klimaet subtropisk; de højeste bjerge i bl.a. Continens Madagascariam et varios archipelagos comprehendit et 54 civitates suarum iurum agnitas habet, cum duabus civitatibus partim agnitis. Vrati me na članak: Klima Afrike. Also, the plateaus and low mountain ranges in this region have a significant impact on how cold it might get during winter. [16] This index comes from a formula originally developed by Ouellet and Sherk in the mid-1960s. I tropiske områder er der aldrig frost. English; norsk bokmål; norsk nynorsk; polski; română; slovenščina [21] The cooler UK summers must be considered. Deze categorie bevat de volgende 3 ondercategorieën, van een totaal van 3. In addition to the USDA Hardiness zones there are American Horticultural Society (AHS) heat zones. Det tropiske klima er Jordens varmeste. Året rundt er middeltemperaturen over 15 °C. The west coast of Sweden (Gothenburg and southwards) enjoys particularly mild winters and lies in zone 7, therefore being friendly to some hardy exotic species (found, for example, in the Gothenburg Botanical Garden), the southeast coast of Sweden has a colder winter due to the absence of the Gulf Stream. Maar bijna iedereen die bekend is met de roep om zwerven en de geur van de aarde die verschroeid is onder de zon, droomt van een dergelijke reis. The COVID-19 pandemic in South Africa is part of the ongoing pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). [31], The USDA map published in 2012 shows that most of the US has become a half zone (5 °F) hotter in winter compared to the 1990 release. Afrika ist in den Klimazonen, die von heißen Temperaturen gekennzeichnet sind, und ein großer Teil des Gebietes durch den Subtropen besetzt. In 2003, the American Horticultural Society (AHS) produced a draft revised map, using temperature data collected from July 1986 to March 2002. It revised hardiness zones, reflecting generally warmer recent temperatures in many parts of the country, and appeared similar to the AHS 2003 draft. Vejret i bestemte områder er som regel det samme år efter år. Zone 6 covers the south of mainland Finland, Sweden north of 60°N, and the high plateau of Småland further south. Zone information alone is often not adequate for predicting winter survival, since factors such as frost dates and frequency of snow cover can vary widely between regions. Afrika er således et varmt kontinent; de fleste steder er det ikke temperaturen, der sætter grænser for plantevækst, men nedbøren, og her er der meget store forskelle. For instance, despite having similar daily means and temperature amplitudes to Nantucket, Massachusetts for each month, Sarajevo has recorded below-freezing temperatures in every month of the year.[28][29]. Deze pagina is voor het laatst bewerkt op 6 mrt 2021 om 12:57. United States hardiness zones (USDA scale), American Horticultural Society heat zones, "7a" areas not part of downtown Washington. Zie de categorie Rivers of South Africa van Wikimedia Commons voor mediabestanden over dit onderwerp. [15] They are numerically about 6 lower than the USDA system. [8] The Canadian government publishes both Canadian and USDA-style zone maps. [2] The Arnold map was subsequently updated in 1951, 1967, and finally 1971, but eventually fell out of use completely. It used uniform 10-degree Fahrenheit ranges, and gradually became widespread among American gardeners.[3][4]. Dit klimaat wordt beschouwd Aw te zijn volgens de … Najviše temperature zabilježene su u sjevernom djelu, u pustinji Sahari i prelaze 40 stepeni Celzijusa. Europa liegt Afrika an der Straße von Gibraltar und der Straße von Sizilien am nächsten. Smatra se „žarkim“ kontinentom, zato što veći deo njene površine ležu okviru izoterme od 50°C. Sydney residents are split between zones 3a and 4b. The southern middle portion of the mainland and central coastal areas are in the middle zones (zones 8, 7, and 6). Voor de Eerste Wereldoorlog was Kameroen een Duitse kolonie. [16], Owing to the moderating effect of the North Atlantic Current on the Irish and British temperate maritime climate, Britain, and Ireland even more so, have milder winters than their northerly position would otherwise afford. Generally speaking, the hardiness zones are high considering the latitude of the region, although not as high as Northern Europe with the Shetland Islands where zone 9 extends to over 60°N. Here one will find cities such as Gävle, Örebro, Sundsvall, and Helsinki. The first map was issued in 1960, and revised in 1965. As an extreme example, due to the Gulf stream most of the United Kingdom is in zones 8–9, while in the US, zones 8–9 include regions such as the subtropical coastal areas of the southeastern US and Mojave and Chihuahuan inland deserts, thus an American gardener in such an area may only have to plan for several nights of cold temperatures per year, while their British counterpart may have to plan for several months. Owing to its position in the Atlantic, its latitude and the effects of the Gulf Stream, the European Macaronesia has by far the warmest winters out of any place in Europe. Klima kommer af græsk (»hældning«) og blev af datidens geografer brugt om den hældningsvinkel, under hvilken solens stråler træffer jordens overflade. State-by-state maps, along with an electronic system that allows finding the zone for a particular zip code, can be found at the USDA Agricultural Research Service (USDA-ARS) website. The USDA system was originally developed to aid gardeners and landscapers in the United States. Deze categorie bevat de volgende 16 pagina’s, van in totaal 16. Zuid-Soedan, Afrika ten opzichte van andere continenten, Gebieden met betwiste status / bezette gebieden, Sint-Helena, Ascension en Tristan da Cunha, http://www.populationdata.net/index2.php?option=pays&pid=57&nom=egypte, http://www.populationdata.net/index2.php?option=pays&pid=152&nom=nigeria, http://www.populationdata.net/index2.php?option=pays&pid=176&nom=republique_democratique_du_congo, https://nl.wikipedia.org/w/index.php?title=Afrika&oldid=58442953, Wikipedia:Lokale afbeelding anders dan op Wikidata, Creative Commons Naamsvermelding/Gelijk delen, Mediabestanden die bij dit onderwerp horen, zijn te vinden op de pagina. In der Regel sind die Klimazonen gürtelförmig, in den Polarregionen kreisförmig, teilweise können sie aber auch unterbrochen sein. Het klimaat is tropisch in Kinshasa. Afrika - klima, Størstedelen af Afrika har tropisk klima. [6], In 2012 the USDA updated their plant hardiness map based on 1976–2005 weather data, using a longer period of data to smooth out year-to-year weather fluctuations. De zomers zijn hier een groot deel van de neerslag, terwijl de winters hebben heel weinig. Africa a Mari Mediterraneo ad septentriones, Canali Suesiensi Marique Rubro secundum Paeninsulam Sinaiticam ad boreorientalem, Oceano Indico ad meridio-orientem, et Oceano Atlantico ad occidentem cingitur. Der südlichste Punkt Afrikas ist Kap Agulhasauf 34… Er wonen meer dan 1 miljard mensen, wat ongeveer een zevende van de wereldbevolking is. Ordets oprindelse. Kiruna is the major exception here, which being located on a hill above frost traps, is in zone 5. Klimaatzones van Afrika, met de ecologische breuk tussen de Sahara (rood), het hete semi-aride klimaat van de Sahel (oranje) en het tropische klimaat van Centraal- en West-Afrika (blauw). Lithuania is in zones 5a, 5b, 6a, 6b, 7a and 7b. The hardiness scales do not take into account the reliability of snow cover in the colder zones. Jorden er inddelt i forskellige klimazoner: Polarklima, tempereret klima, subtropisk klima og tropisk klima. USDA Agricultural Research Service (USDA-ARS) website. Carolina, Puerto Rico has the warmest hardiness zone in the United States at 13b. The USDA rejected the AHS 2003 draft map and created its own map in an interactive computer format, which the American Horticultural Society now uses. In het verhaal wordt het continent Afrika overgestoken in een luchtballon en ligt ook de Kilimanjaro langs de route. The Mediterranean Sea acts as a temperature regulator, so this area is generally warmer than other parts of the continent; except in mountainous areas where the sea effect lowers, it belongs in zones 8–10; however, southern Balkans (mountainous Western and Eastern Serbia, continental Croatia, and Bulgaria) are colder in winter and are in zones 6–7. Vereinfachte Darstellung der Klimazonen in Afrika. Even the extreme minimum itself may not be useful when comparing regions in widely different climate zones. Deze index van de Verenigde Naties bevat 177 landen over de gehele wereld. Het beslaat zo'n 30.244.050 vierkante kilometer, wat 20,3% van de totale landoppervlakte van de aarde is. An extreme example of a cold sink is Funtensee, Bavaria which is at least in zone 3 and maybe even in zone 1 or 2. The original and most widely used system, developed by the United States Department of Agriculture (USDA) as a rough guide for landscaping and gardening, defines 13 zones by annual extreme minimum temperature. [32], Geographical regions defined by climatic conditions for horticultural purposes. These examples prove that local topography can have a pronounced effect on temperature and thus on what is possible to grow in a specific region. Klimazonen afrika wikipedia. Eine Reise durch den Kontinent! Stranica Klima Afrike dostupna je na 11 jezika. Zie de categorie Countries of Africa van Wikimedia Commons voor … Ander faktore, soos die uitwerking van land- en watermassas, topografie en seestrome beïnvloed ook die kontinent se klimaat. Afrika se klimaat kan as sewe klimaatstreke in drie algemene kategorieë geklassifiseer word. eilanden die niet op de Afrikaanse continentale plaat liggen maar gewoonlijk beschouwd worden als behorend tot Afrika (aangeduid met (1)); Het oostelijkste punt ligt op het schiereiland Hafun in, woestijnen en halfwoestijnen van de (sub)tropen. Dankzij een politiek stabiel klimaat heeft het land een goede infrastructuur opgebouwd. Diese Landschaft geht über in die Feuchtsavanne (1000–1500 mm Regen pro Jahr), die Trockensavanne (500–1000 mm Regen pro Jahr) und dann in die Dornenstrauchsavanne (250–500 mm Regen pro Jahr). Niederschlagsmengen Tropen /Außertropen im Vergleich (Flash): -> hier klicken! In Nordaf… Klimazonen in Afrika. In this method, common plants with known limits to their range are used. Ein Merkmal dieser Zone ist, daß im Sommer wehe äquatoriale Winde, die in der Region regen bringen und oft beschlagen. The warmest zone in the 48 contiguous states is the Florida Keys (11b) and the coldest is in north-central Minnesota (3a). Farmers, gardeners, and landscapers in the former two must plan for entirely different growing seasons from those in the latter. Klimadiagramme Afrikas. Klimasoner i Africa som viser skilje mellom varmt ørkenklima i Sahara (raudt), varmt steppeklima i Sahel (oransje) og tropisk klima i Sentral- og Vest-Afrika (blått). [7] Two new zones (12 and 13) were added to better define and improve information sharing on tropical and semitropical plants, they also appear on the maps of Hawaii and Puerto Rico. Tropisk klima. In Sweden and Finland generally, at sea level to 500 metres (1,600 ft), zone 3 is north of the Arctic Circle, including cities like Karesuando, Pajala, and Rovaniemi. The Croatian (Dalmatian) coast, Albania, and northern Greece are in zones 8–9, as are central-northern Italy (hills and some spots in Po Valley are however colder) and southern France; Central Iberia is 8–9 (some highland areas are slightly colder). As an example, Quebec City in Canada is located in zone 4, but can rely on a significant snow cover every year, making it possible to cultivate plants normally rated for zones 5 or 6. [9][3][12], An alternative means of describing plant hardiness is to use "indicator plants". Allerede Emil von Meyeren skrev så tidligt som i 1843, at: "Planterne er at anse som Forkyndere af det sande Klima." Climate variables that reflect the capacity and detriments to plant growth are used to develop an index that is mapped to Canada's Plant Hardiness Zones. The country is in zones 5a, 5b, 6a, 6b, 7a and 7b. Die Globale Erwärmung ist der beobachtete und prognostizierte Trend zu einer im Vergleich zu den vorindustriellen Werten höheren globalen Durchschnittstemperatur mit Folgen wie steigende Meeresspiegel, … The AHS Heat Zone Map for the US is available on the American Horticultural Society website. Some isolated, high elevation areas of the Alps and Carpathians may even go down to zone 3 or 4. The USDA map published in 2012 shows that most of the US has become a half zone (5 °F) hotter in winter compared to the 1990 release. The USDA hardiness zones are not used in Australia. E. Egypte‎ (3 C, 2 P) M. Marokko‎ (1 C, 8 P) Z. Zuud-Afrika‎ (1 C) Artikeln in categorie "Land in Afrika". For example, Australian zone 3 is roughly equivalent to USDA zone 9. [17][18][19], The formula used is: Y = -67.62 + 1.734X1 + 0.1868X2 + 69.77X3 + 1.256X4+ 0.006119X5 + 22.37X6 - 0.01832X7, For practical purposes, Canada has adopted the American hardiness zone classification system. Klimazonen sind sich in Ost-West-Richtung um die Erde erstreckende Gebiete, die anhand grundlegend unterschiedlicher klimatischer Verhältnisse voneinander abgegrenzt sind. Save for a very small spot near Karasjok, Norway, which is in zone 2, nowhere in the Arctic part of Scandinavia does it get below zone 3. Afrika is qua oppervlakte na Azië het grootste continent op Aarde. Other hardiness rating schemes have been developed as well, such as the UK Royal Horticultural Society and US Sunset Western Garden Book systems. Marokko (Aroabiesch: المغرب al-Maġrib; Berbersch: ⵍⵎⴰⵖⵔⵉⴱ Lmaġrib; Fransch: Maroc), officiêel Keunienkryk Marokko is e land in 't Westn van Nôord-Afrika. De tekst is beschikbaar onder de licentie. The Foundation also did away with the more detailed a/b half-zone delineations. Deze categorie omvat alleen subcategorieën van de landen. Østafrika har tempereret klima. The 1990 version of the USDA Plant Hardiness Zone Map included Canada and Mexico, but they were removed with the 2012 update to focus on the United States and Puerto Rico. Effects of climate change. Jezici. The Åland Islands, as well as coastal southern Sweden, and the Stockholm area are in zone 7. Learn how and when to remove this template message, "History of Plant Hardiness Zone Maps – The Rest of the Story", "New arborday.org Hardiness Zone Map reflects warmer climate : Latest hardiness zones, based on most current temperature data available, suggest up-to-date choices for best trees to plant", "What's New | USDA Plant Hardiness Zone Map", "Beyond Traditional Hardiness Zones: Using Climate Envelopes to Map Plant Range Limits", "Die Wärmezonen der Erde, nach der Dauer der heissen, gemässigten und kalten Zeit und nach der Wirkung der Wärme auf die organische Welt betrachtet [The thermal zones of the Earth according to the duration of hot, moderate and cold periods and of the impact of heat on the organic world]", "Natural Resources Canada – Plant Hardiness of Canada", "Woody Ornamental Plant Zonation: III. Different locations in the same city are suitable for different plants. The modern USDA system began at the US National Arboretum in Washington. Voor een deel klopt dit beeld, maar het klimaat van Afrika is toch echt wat genuanceerder dan wat veel mensen verwachten. Budući da ekvator preseca Afriku skoro po sredini, u severnom i južnom delu razvili … Coastal Ireland and Miami are both Zone 10, but have radically different insolation and summer heat and humidity. It has been adapted by and to other countries (such as Canada) in various forms. Die Klimazonen sind die Grundlage verschiedener geozonaler Modelle der Geo- und Biowissenschaften. Lower zones can be found in Alaska (down to 1). Many plants may survive in a locality but will not flower if the day length is insufficient or if they require vernalization (a particular duration of low temperature). [27] The Balkan area is also more prone to cold snaps and episodes of unseasonable warmth. [20], USDA zones do not work particularly well in the UK as they are designed for a continental climate. Über 80% neue Produkte zum Festpreis; Das ist das neue eBay. Mit Klimadiagrammen quer durch Afrika! In addition, the zones do not incorporate any information about summer temperature or insolation; thus sites which may have the same mean winter minima, but markedly different summer temperatures, will be accorded the same hardiness zone. South Africa. Tropischen Regenwald findet man in Afrika in den Regionen Oberguinea und in den Kongobecken. De Republiek Zuid-Afrika is een van die zeldzame plekken op de planeet waar niet elke toerist komt. Zie de categorie:territorium in Afrika voor de niet-onafhankelijke gebieden. Landinwaarts is ’s nachts vorst en sneeuw mogelijk, zeker in de hoger gelegen gebieden. Denne artikel gennemgår klimazoner og kommer desuden ind på fastlandsklima og kystklima. Zuid-Afrika zakte in de index van de menselijke ontwikkeling van een 85e (ten tijde van de verkiezing van het ANC in de jaren negentig) naar de 120e plaats in 2006 en naar de 125e in 2008. A hardiness zone is a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival. De categorie Land in Afrika biedt een overzicht van artikelen over landen in Afrika . Waksmund is in zone 3b while nearby Kraków, only 80 km (50 mi) to the north and 300 m (980 ft) lower is in zone 6a. [8] Research in 2016 suggests that USDA plant hardiness zones will shift even further northward under climate change. The low latitude and often stable weather in Florida, the Gulf Coast, and southern Arizona and California, are responsible for the rarity of episodes of severe cold relative to normal in those areas. Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation. On 5 March 2020, Minister of Health Zweli Mkhize confirmed the spread of the virus to South Africa, with the first known patient being a male citizen who tested positive upon his return from Italy . The first attempts to create a geographical hardiness zone system were undertaken by two researchers at the Arnold Arboretum in Boston: the first was published in 1927 by Alfred Rehder,[1] and the second by Donald Wyman in 1938. Sørlege Afrika omfattar overgangar mellom subtropisk og temperert klima (grønt) og meir ørken- eller halvtørre område ve Namibia og Botswana. Die Savanne besteht aus offenem Grasland, deren Wuchshöhe abhängig von der Regenmenge ist, und … Die einzige Landverbindung zu anderen Festlandmassen besteht zu Eurasien an der Stelle der Sinai-Halbinsel, die zwischen Afrika und der Arabischen Halbinsel liegt. Dit zijn de koelste en met uitzondering van het zuidwesten (de Kaap) de droogste maanden. Im Winter gibt es tropische Winde, trocken und sehr heiß, so dass die Menge des regen reduziert wird, und die Temperatur steigt. Een van de eerste vermeldingen in de literatuur is te vinden in Jules Vernes Vijf weken in een luchtballon uit 1863. Eirdrykskundig is Marokko gekenmerkt deur e ruw bergachtig binneland en grôote stikn woestyne. Zuidelijk Afrika heeft een overgang naar subtropische en gematigde klimaten (groen en geel), en meer woestijn- of semi-aride gebieden, met als middelpunt Namibië, Botswana en Zuid-Afrika. The USDA map was revised and reissued in 1990 with freshly available climate data, this time with 5-degree distinctions dividing each zone into new "a" and "b" subdivisions. Finde ‪Das Ist Afrika‬! Die Küstenlänge beträgt 30.490 km, was gemessen an der großen Fläche relativ wenig ist. All these coastal locations have one thing in common, though, which are cold, damp summers, with temperatures rarely exceeding 20 °C (68 °F), or 15 °C (59 °F) in Longyearbyen. The USDA plant hardiness zones for selected U.S. cities as based on the 2012 map are the following: As the USDA system is based entirely on average annual extreme minimum temperature in an area, it is limited in its ability to describe the climatic conditions a gardener may have to account for in a particular area: there are many other factors that determine whether or not a given plant can survive in a given zone. Ghana (/ ˈ ɡ ɑː n ə / ()), officially the Republic of Ghana which was formerly called Gold Coast, is a country along the Gulf of Guinea and the Atlantic Ocean, in the subregion of West Africa.Spanning a land mass of 238,535 km 2 (92,099 sq mi), Ghana is bordered by the Ivory Coast in the west, Burkina Faso in the north, Togo in the east, the Gulf of Guinea and the Atlantic Ocean in the south. In the United States, most of the warmer zones (zones 9, 10, and 11) are located in the deep southern half of the country and on the southern coastal margins. Ook kent het land goede landbouw en olie … The islands of Malta, Lampedusa, a few areas on the southernmost coast of Cyprus all belong to zone 11a[citation needed]. Man kan inddele jorden i fire klimazoner: polar, tempereret, subtropisk og tropisk klima. The map has a higher resolution than previous ones, and is able to show local variations due to things such as elevation or large bodies of water. It consists of three archipelagos, the Portuguese Azores and Madeira, belonging to zones 11a/11b and 11b/12a respectively and the Spanish Canary Islands, part of zones 12a/12b. Deze pagina is voor het laatst bewerkt op 28 okt 2016 om 04:08. Schau Dir Angebote von ‪Das Ist Afrika‬ auf eBay … There is a very small spot east of San Juan, Puerto Rico that includes the airport in coastal Carolina, where the mean minimum is 67 degrees F (19 C), which is classified as hardiness Zone 13b, the highest category, with temperatures rarely below 65 °F (18 °C). [citation needed], Sunset publishes a series that breaks up climate zones more finely than the USDA zones, identifying 45 distinct zones in the US, incorporating ranges of temperatures in all seasons, precipitation, wind patterns, elevation, and length and structure of the growing season. Mit Folgen der globalen Erwärmung werden zahlreiche die Menschheit und die Erde betreffende Veränderungen durch einen weltweiten Temperaturanstieg beschrieben. Tromsø, a coastal city in Norway at 70°N, is in zone 7, and even Longyearbyen, the northernmost true city in the world at 78°N, is still in zone 4. Afrika se klimaat is meestal tropies, want 70% van Afrika se grondgebied lê tussen die Kreef- en Steenbokskeerkring. Saam met die eilande beslaan dit ongeveer 30 221 532 km² wat 20,3% van die totale landoppervlakte van die aarde is en dit word bewoon deur meer as 1 miljard mense – ongeveer 'n sewende van die wêreldbevolking. Snow acts as an insulator against extreme cold, protecting the root system of hibernating plants. [30], South Africa has five horticultural or climatic zones. En klimazone er et område, hvor vejret er på en bestemt måde. One is in zone 4a, one in zone 4b, and the other is in zone 5a. Kameroen heeft 27.744.989 inwoners. [citation needed]. [21], In 2012 the United Kingdom's Royal Horticultural Society introduced new hardiness ratings for plants, from H7, the hardiest (tolerant of temperatures below −20 °C (−4 °F)) to H1a (needing temperatures above 15 °C (59 °F)). But, in Montreal, located to the southwest in zone 5, it is sometimes difficult to cultivate plants adapted to the zone because of the unreliable snow cover. If the snow cover is reliable, the actual temperature to which the roots are exposed will not be as low as the hardiness zone number would indicate. Hier ein wenig trockener als am Äquator, der Dschungel und immergrünen Wald verwandeln sich in Savanne. New growth may be insufficient or fail to harden off affecting winter survival. The Faroe Islands, at 62–63°N are in zone 8, as are the outer Lofoten Islands at 68°N. Central Europe is a good example of a transition from an oceanic climate to a continental climate, which reflects in the tendency of the hardiness zones to decrease mainly eastwards instead of northwards. The Australian National Botanic Gardens have devised another system more in keeping with Australian conditions. This shows the importance of taking heat zones into account for better understanding of what may or may not grow. There are many other climate parameters that a farmer, gardener, or landscaper may need to take into account as well, such as humidity, precipitation, storms, rainy-dry cycles or monsoons, and site considerations such as soil type, soil drainage and water retention, water table, tilt towards or away from the sun, natural or manmade protection from excessive sun, snow, frost, and wind, etc. [5], In 2006, the Arbor Day Foundation released an update of U.S. hardiness zones, using mostly the same data as the AHS. Their map purported to show finer detail, for example, reflecting urban heat islands by showing the downtown areas of several cities (e.g., Baltimore, Maryland; Washington, D.C. and Atlantic City, New Jersey) as a full zone warmer than outlying areas. Vrijwel geheel Afrika behoort tot de derde … Zone 4 lies between the Arctic Circle and about 64–65°N, with cities such as Oulu and Jokkmokk, zone 5 (south to 61–62°N) contains cities such as Tampere, Umeå, and Östersund.

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