|
Geding Lake
Geding Lake (Danish: Geding Sø) is a lake west of the Aarhus suburb of Tilst in Aarhus Municipality, Denmark. The stream Egå and the Egå river valley begins here. The lake is bounded by the Aarhus-Randers Rail Line to the west. Geding Lake is also known under the older name ''Gjeding Sø''. The lake is connected to a myth and folk story stating that Geding Lake, Brabrand Lake and ''Lading Lake'' was created during a battle between two giants that lived in the hills '' Hasle Høj'' and '' Borum Eshøj''.Se §108 fra Evald Tang KristensenDanske Sagn Silkeborg Bogtrykkeri (1895). Until 1997, the hills on the eastern side of the lake were used for skiing including a ski lift provided by ''Aarhus SKi Club'', but due to lack of snow for years these activities have stopped. Environmental conditions Geding Lake is rich in calcium. The ecosystem of the lake has experienced problems with heightened levels of chlorophyll some 3 times higher than the targeted levels. The catchment a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aarhus Municipality
Aarhus Municipality ( da, Aarhus Kommune), known as Århus Municipality ( da, Århus Kommune) until 2011, is a municipality in Central Denmark Region, on the east coast of the Jutland peninsula in central Denmark. The municipality covers an area of , and has a population of 349,983 as of 2020. The main town and the site of its municipal council is the city of Aarhus. Neighbouring municipalities are Syddjurs to the north, Favrskov to the northwest, Skanderborg to the southwest, and Odder to the south. Aarhus Municipality was not merged with other municipalities in the nationwide ''Kommunalreformen'' ("The Municipal Reform" of 2007) due to its already relatively large size and population. The municipality is part of Business Region Aarhus and of the East Jutland metropolitan area, which had a total population of 1.378 million in 2016. Politics Aarhus City Council (''Aarhus Byråd'') is also the municipal government. The city council consists of 31 members elected for four ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words , ("pale green") and , ("leaf"). Chlorophyll allow plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum. Hence chlorophyll-containing tissues appear green because green light, diffusively reflected by structures like cell walls, is less absorbed. Two types of chlorophyll exist in the photosystems of green plants: chlorophyll ''a'' and ''b''. History Chlorophyll was first isolated and named by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817. The presence of magnesium in chlorophyll was discovered in 1906, and was that element's first detection in living tissue. After initial work done by German chemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand and silt can be carried in suspension in river water and on reaching the sea bed deposited by sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification. Sediments are most often transported by water (fluvial processes), but also wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice-transported sediments. Classification Sediment can be classified based on its grain size, grain shape, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenic
Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but only the gray form, which has a metallic appearance, is important to industry. The primary use of arsenic is in alloys of lead (for example, in car batteries and ammunition). Arsenic is a common n-type dopant in semiconductor electronic devices. It is also a component of the III-V compound semiconductor gallium arsenide. Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated wood products, herbicides, and insecticides. These applications are declining with the increasing recognition of the toxicity of arsenic and its compounds. A few species of bacteria are able to use arsenic compounds as respiratory metabolites. Trace quantities of arsenic are an essential dietary element in rats, ham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geding-Kasted Bog
Geding-Kasted Mose is a bog about 7 kilometers north-west of Aarhus, in the western section of the Egå river valley though which the river Egå runs. The bog covers about 30 hectares of which a sizable portion is used as meadows for grazing cattle. Other parts are cultivated but as the area is low-lying it is more or less flooded during winter. The bog has some waterholes and old peat pits which are now mostly concealed by thickets of primarily downy birch and grey willow. Geding-Kasted Bog is one of the most important catchment areas for the water supply in Aarhus Municipality and the city of Aarhus. Flora and fauna Geding-Kasted Bog has a major biodiversity with many different plant and animal species. Especially downy birch and grey willow dominate but on the meadows there is also globeflower, branched bur-reed, western marsh orchid, saw-wort and Irish fleabane. Insects are important pollinators for the flowers in bog and as prey for toads, reptiles and birds. Due to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Metal (chemistry)
upright=1.2, Crystals of osmium, a heavy metal nearly twice as dense as lead">lead.html" ;"title="osmium, a heavy metal nearly twice as dense as lead">osmium, a heavy metal nearly twice as dense as lead Heavy metals are generally defined as metals with relatively high density, densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary depending on the author and context. In metallurgy, for example, a heavy metal may be defined on the basis of density, whereas in physics the distinguishing criterion might be atomic number, while a chemist would likely be more concerned with chemical property, chemical behaviour. More specific definitions have been published, but none of these have been widely accepted. The definitions surveyed in this article encompass up to 96 out of the 118 known chemical elements; only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mundelstrup
Mundelstrup is a village in east Jutland, Denmark, with a population of 412 (1 January 2022). It's located approximately 13 kilometres (8.1 mi) from central Aarhus Aarhus (, , ; officially spelled Århus from 1948 until 1 January 2011) is the second-largest city in Denmark and the seat of Aarhus Municipality. It is located on the eastern shore of Jutland in the Kattegat sea and approximately northwest .... Retrieved 2014-04-05. References External links * Towns and settlements in Aarhus Municipality[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danish Nature Agency
The Danish Nature Agency (Danish: ''Naturstyrelsen'') is part of the Ministry of Environment ( da, Miljøministeriet), and deals with a number of tasks in nature conservation and forestry. In addition, the agency is in charge of operation and administration of the state-owned forests and the rest of Miljøministeriet's areas. The agency advises the Secretary of State and the Government, and administers Danish planning law as to what makes it into the state's center for regional planning. The Forest and Nature Agency's sphere of operation is determined by Order nr. 963 as of 21 September 2004 and Order nr. 1485 as of 20 December 2005. Objectives *The agency aims for a balanced development throughout the country *It is responsible for maintaining and restoring a diverse countryside *It seeks to strike a balance between nature and industry Values In 2005 the Nature Agency re-examined its values, and the management and staff have chosen five values as benchmark agency working methods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Restoration
Environmental restoration is closely allied with (or perhaps sometimes used interchangeably with) ecological restoration or environmental remediation. In the U.S., remediation is the term used more in the realms of industry, public policy, and civil services. Environmental restoration is a term common in the citizens’ environmental movement. In the 1987 edition of his book ''Restoring the Earth: How Americans are Working to Renew our Damaged Environment'', scientific editor and writer John J. Berger defined environmental restoration (or “natural resource restoration”) as follows: ''"… A process in which a damaged resource is renewed. Biologically. Structurally. Functionally."'' Natural environment The ongoing growth of the human population in the world and its associated impacts, mean that the need for ecological restoration has become increasingly clear. The old adage "an ounce of prevention is worth a pound of cure" points to the fact that ecological restoration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colorless and odorless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element. Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids ( DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% nitrogen by mass, the fourth most abundant element in the body after oxygen, carbon, and hydrogen. The nitrogen cycle describes the movement of the element from the air, into the biosphere and organic compounds, then back into the atmosphere. Many indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphorus
Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare copper at about 0.06 grams). In minerals, phosphorus generally occurs as phosphate. Elemental phosphorus was first isolated as white phosphorus in 1669. White phosphorus emits a faint glow when exposed to oxygen – hence the name, taken from Greek mythology, meaning 'light-bearer' (Latin ), referring to the " Morning Star", the planet Venus. The term '' phosphorescence'', meaning glow after illumination, derives from this property of phosphorus, although the word has since been used for a different physical process that produces a glow. The glow of phosphorus is caused by oxidation of the white (but not red) phosphorus — a process now called chem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catchment Area
In human geography, a catchment area is the area from which a location, such as a city, service or institution, attracts a population that uses its services and economic opportunities. Catchment areas may be defined based on from where people are naturally drawn to a location (for example, labour catchment area) or as established by governments or organizations for the provision of services. Governments and community service organizations often define catchment areas for planning purposes and public safety such as ensuring universal access to services like fire departments, police departments, ambulance bases and hospitals. In business, a catchment area is used to describe the influence from which a retail location draws its customers. Airport catchment areas can inform efforts to estimate route profitability. Types of catchment areas Catchments can be defined relative to a location and based upon a number of factors, including distance, travel time, geographic boundaries or popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
