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Valkjärvi (lake)
Valkjärvi is a lake located in the Nurmijärvi municipality in Southern Finland. It is an island-free lake in the immediate vicinity of Klaukkala's urban area. The water flows from the lake along the Luhtajoki River all the way to the Vantaa River. Valkjärvi is the most lushest lake of Nurmijärvi,Jorma Keskitalo: Kasviplanktonlajisto ja –biomassa Uudenmaan seurantajärvillä 2014 – 2015. (in Finnish) and it is part of the Nurmijärvi's lake monitoring program of the Central Uusimaa Environment Centre (''Keski-Uudenmaan ympäristökeskus'') due to its poor oxygen values near the bottom of the lake, which are observed especially in summer and winter under ice.Valkjärvi - Keski-Uudenmaan ympäristökeskus (in Finnish) |
Nurmijärvi
Nurmijärvi () is the most populated rural municipality of Finland, located north of the capital Helsinki. The neighboring municipalities of Nurmijärvi are Espoo, Vantaa, Tuusula, Hyvinkää and Vihti, and it is part of the Greater Helsinki. The population of the municipality is inhabitants. In recent decades, it has been one of the fastest growing municipalities in the Greater Helsinki and also in whole Finland in terms of population. The close proximity to Helsinki has led to a considerable growth of the major villages such as Klaukkala, Rajamäki and Röykkä. Klaukkala is the biggest built-up area of Nurmijärvi, which nowadays is considered a dormitory town of Helsinki. The Nurmijärvi church village (''Kirkonkylä'') is the administrative centre of the municipality, although the clear emphasis on population growth is in Klaukkala. Nurmijärvi literally means "lawn lake" although the lake that gave the municipality its name was drained in the early 20th century and is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uusimaa
Uusimaa (; sv, Nyland, ; both lit. 'new land') is a region of Finland. It borders the regions of Southwest Finland, Tavastia Proper (Kanta-Häme), Päijänne Tavastia (Päijät-Häme), and Kymenlaakso. Finland's capital and largest city, Helsinki, along with the surrounding Greater Helsinki area, are both contained in the region, and Uusimaa is Finland's most populous region. The population of Uusimaa is 1,723,000. While predominantly Finnish-speaking, Uusimaa has the highest total number of native speakers of Swedish in Finland even at a much lower share than two other regions. History The place name of Nuuksio derives from the Sami word which means ' swan.'' Later Finns proper and Tavastians inhabited the area. Some place names have traces of Tavastian village names, like Konala, which likely derives from the older Tavastian village name ''Konhola''. Estonians inhabited the region to a smaller extent, specifically for seasonal fishing. Swedish colonisation of coasta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luhtajoki
The Luhtajoki is a long river in Southern Finland. The river starts from Hyvinkää and flows as ''Kyläjoki'' into the church village of Nurmijärvi, where it flows 23 kilometers (14 mi) into the Klaukkala and from there to the River Vantaa where it connects. The Luhtajoki River is lush and its water is clayey. The river is subject to both point and diffuse loads. The loads are caused by, for example, sewage load and agriculture. There are extensive floodplains in the area. The river has been sprouted several times. The Luhtajoki River is classified as satisfactory and the River Kyläjoki as passable. The river is also quite demanding for canoeing due to its eutrophication and sometimes its low amount of water. See also * Kuhakoski Kuhakoski (; literally meaning "zander rapids") is a rapids near the village of Perttula in Nurmijärvi, Finland. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bothnia to the west and the Gulf of Finland across Estonia to the south. Finland covers an area of with a population of 5.6 million. Helsinki is the capital and largest city, forming a larger metropolitan area with the neighbouring cities of Espoo, Kauniainen, and Vantaa. The vast majority of the population are ethnic Finns. Finnish, alongside Swedish, are the official languages. Swedish is the native language of 5.2% of the population. Finland's climate varies from humid continental in the south to the boreal in the north. The land cover is primarily a boreal forest biome, with more than 180,000 recorded lakes. Finland was first inhabited around 9000 BC after the Last Glacial Period. The Stone Age introduced several differ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klaukkala
Klaukkala (; sv, Klövskog , ) is the southern-most urban area ( fi, taajama) of the Nurmijärvi municipality in Uusimaa, Finland, located near Lake Valkjärvi. It is the largest urban area in Nurmijärvi, and despite the fact that it officially has the status of a village, it's often mistakenly thought to be a separate town due to its size and structure. In the 2010s, Klaukkala's urban area grew to be part of the larger Helsinki urban area. Klaukkala has a population of over 20,000 and is the fastest-growing area of Nurmijärvi; almost half of the total population of the municipality lives in Klaukkala. Its population began to rise in the 1960s, when it surpassed the church village of Nurmijärvi. In the 1970s, Klaukkala also grew larger than Rajamäki, which until then was the largest of Nurmijärvi's villages. At that time, Klaukkala's population was over 2,500. Klaukkala has significant migration mainly from the Helsinki conurbation; being a rural village a half-hour's driv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake
A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger oceans, they do form part of the Earth's water cycle. Lakes are distinct from lagoons, which are generally coastal parts of the ocean. Lakes are typically larger and deeper than ponds, which also lie on land, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which usually flow in a channel on land. Most lakes are fed and drained by rivers and streams. Natural lakes are generally found in mountainous areas, rift zones, and areas with ongoing glaciation. Other lakes are found in endorheic basins or along the courses of mature rivers, where a river channel has widened into a basin. Some parts of the world have many lakes formed by the chaotic drainage patterns left over from the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Finland
Southern Finland ( fi, Etelä-Suomen lääni, sv, Södra Finlands län) was a province of Finland from 1997 to 2009. It bordered the provinces of Western Finland and Eastern Finland. It also bordered the Gulf of Finland and Russia. History On September 1, 1997 the Uusimaa Province, the Kymi Province and the southern parts of the Häme Province were joined to form the new Southern Finland Province. All the provinces of Finland were abolished on January 1, 2010. Administration The State Provincial Office was a joint regional authority of seven different ministries. It promoted national and regional objectives of the State central administration. The State Provincial Office of Southern Finland employed about 380 persons. Its service offices were located in the cities of Hämeenlinna, Helsinki, and Kouvola. The administrative seat was placed at Hämeenlinna. Regions Southern Finland was divided into six regions: *South Karelia (''Etelä-Karjala / Södra Karelen'') * Päi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vantaa (river)
The Vantaa ( fi, Vantaanjoki, ) is a long river in Southern Finland. The river starts from the lake in Hausjärvi and flows into the Gulf of Finland at ' in Helsinki. One of the tributaries of the Vantaa river is Keravanjoki that flows through the town of Kerava north of Helsinki. Use as water and power supply The country's capital, Helsinki, uses water from the Vantaa river as its backup water supply if the Päijänne Water Tunnel needs to be repaired. The Helsinki-based energy company Helsingin Energia has a working power station museum located at the mouth of Vantaanjoki. The Hydropower Plant produces an average of 500 MWh annually. Gallery Image:Vanhankapunginkoski.jpg, Vanhankaupunginkoski rapids Image:Ruutinkoski.JPG, Ruutinkoski rapids Image:Helsinki-Pitkakoski kevattalvi.jpg, Pitkäkoski rapids during winter, located between Helsinki and Vantaa Image:ADamInVantaanjoki.JPG, A dam in Vantaanjoki See also * Kaljakellunta, an annual social event on the river * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue-green Algae
Cyanobacteria (), also known as Cyanophyta, are a phylum of gram-negative bacteria that obtain energy via photosynthesis. The name ''cyanobacteria'' refers to their color (), which similarly forms the basis of cyanobacteria's common name, blue-green algae, although they are not usually scientifically classified as algae. They appear to have originated in a freshwater or terrestrial environment. Sericytochromatia, the proposed name of the paraphyletic and most basal group, is the ancestor of both the non-photosynthetic group Melainabacteria and the photosynthetic cyanobacteria, also called Oxyphotobacteria. Cyanobacteria use photosynthetic pigments, such as carotenoids, phycobilins, and various forms of chlorophyll, which absorb energy from light. Unlike heterotrophic prokaryotes, cyanobacteria have internal membranes. These are flattened sacs called thylakoids where photosynthesis is performed. Phototrophic eukaryotes such as green plants perform photosynthesis in plast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phytoplankton
Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater ecosystems. The name comes from the Greek words (), meaning 'plant', and (), meaning 'wanderer' or 'drifter'. Phytoplankton obtain their energy through photosynthesis, as do trees and other plants on land. This means phytoplankton must have light from the sun, so they live in the well-lit surface layers (euphotic zone) of oceans and lakes. In comparison with terrestrial plants, phytoplankton are distributed over a larger surface area, are exposed to less seasonal variation and have markedly faster turnover rates than trees (days versus decades). As a result, phytoplankton respond rapidly on a global scale to climate variations. Phytoplankton form the base of marine and freshwater food webs and are key players in the global carbon cycle. They account for about half of global photosynthetic activity and at least half of the oxygen production, despite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptomonad
The cryptomonads (or cryptophytes) are a group of algae, most of which have plastids. They are common in freshwater, and also occur in marine and brackish habitats. Each cell is around 10–50 μm in size and flattened in shape, with an anterior groove or pocket. At the edge of the pocket there are typically two slightly unequal flagella. Some may exhibit mixotrophy. Characteristics Cryptomonads are distinguished by the presence of characteristic extrusomes called ejectosomes, which consist of two connected spiral ribbons held under tension. If the cells are irritated either by mechanical, chemical or light stress, they discharge, propelling the cell in a zig-zag course away from the disturbance. Large ejectosomes, visible under the light microscope, are associated with the pocket; smaller ones occur underneath the periplast, the cryptophyte-specific cell surrounding. Except for the class ''Goniomonadea'', which lacks plastids entirely, and ''Cryptomonas paramecium'' (previo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beach
A beach is a landform alongside a body of water which consists of loose particles. The particles composing a beach are typically made from rock, such as sand, gravel, shingle, pebbles, etc., or biological sources, such as mollusc shells or coralline algae. Sediments settle in different densities and structures, depending on the local wave action and weather, creating different textures, colors and gradients or layers of material. Though some beaches form on inland freshwater locations such as lakes and rivers, most beaches are in coastal areas where wave or current action deposits and reworks sediments. Erosion and changing of beach geologies happens through natural processes, like wave action and extreme weather events. Where wind conditions are correct, beaches can be backed by coastal dunes which offer protection and regeneration for the beach. However, these natural forces have become more extreme due to climate change, permanently altering beaches at very rapid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_beach.jpg "Click for more on -> Nurmijärvi")
