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Key Cave National Wildlife Refuge
Key Cave National Wildlife Refuge is a 1,060 acre (4.3 km2) National Wildlife Refuge located in northwestern Alabama, along the Tennessee River downstream from Florence, Alabama. Additional purchases are under negotiation which will increase the size of the refuge to 1,800 acres (7.3 km2). More than 6,000 visitors per year visit the refuge. The facility is unstaffed, but is administered by the Wheeler National Wildlife Refuge in Decatur, Alabama. Topography Caves Two caves, Key Cave and Collier Cave, lie within the refuge, approximately apart. Both caves are closed to the public. Each is on the northern shore of Pickwick Lake on the Tennessee River. The area also contains several sinkholes and cave systems, including a sinkhole lake. The sinkholes and cave systems provide a source of groundwater for the caves. The refuge is set up to minimize the pollution of this groundwater. Land The land suffers from severe erosion due to the extensive farming in the ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lauderdale County, Alabama
Lauderdale County is a County (United States), county located in the northwestern corner of the U.S. state of Alabama. At the 2020 United States census, 2020 census the population was 93,564. Its county seat is Florence, Alabama, Florence. Its name is in honor of Colonel James Lauderdale, of Tennessee. Lauderdale is part of the Florence-Muscle Shoals, Alabama, Muscle Shoals, AL Metropolitan Statistical Area, also known as "The Shoals". History Lauderdale County was named in honor of James Lauderdale, Col. James Lauderdale who was born in Virginia in about 1780. In the early 19th century, Lauderdale, who moved to West Tennessee, became a major in General John Coffee's cavalry of volunteers. Later promoted to lieutenant colonel, he commanded a brigade of mounted riflemen, serving under Andrew Jackson. According to reliable historians, Col. Lauderdale did not die in the Battle of New Orleans, but was wounded in the Battle of Talladega and died on December 23, 1814, seventeen days b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panicum Virgatum
''Panicum virgatum'', commonly known as switchgrass, is a perennial warm season bunchgrass native to North America, where it occurs naturally from 55th parallel north, 55°N latitude in Canada southwards into the United States and Mexico. Switchgrass is one of the dominant species of the central North American tallgrass prairie and can be found in remnant prairies, in native grass pastures, and naturalized along roadsides. It is used primarily for soil conservation, forage production, game cover, as an ornamental grass, in phytoremediation projects, fiber, electricity, heat production, for biosequestration of atmospheric carbon dioxide, and more recently as a biomass crop for ethanol and butanol. Other common names for switchgrass include tall panic grass, Wobsqua grass, blackbent, tall prairiegrass, wild Agrostis, redtop, thatchgrass, and Virginia switchgrass. Description Switchgrass is a hardy, deep-rooted, Perennial plant, perennial rhizome, rhizomatous grass that begins grow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alabama Cavefish
The Alabama cavefish (''Speoplatyrhinus poulsoni'') is a critically endangered species of amblyopsid cavefish found only in underground pools in Key Cave, located in northwestern Alabama, United States in the Key Cave National Wildlife Refuge. It was discovered underneath a colony of gray bats in 1967 by researchers Robert A. Kuehne and John E. Cooper and scientifically described in 1974.Cooper, J.E., and R.A. Kuehne (1974). "Speoplatyrhinus poulsoni, a New Genus and Species of Subterranean Fish from Alabama." Copeia 1974: 486-93. doi: 10.2307/1442539 On any single visit to the cave, no more than 10 individuals of this fish have been observed, and scientists estimate fewer than 100 are left. This species of fish is believed to be the rarest species of cavefish in the United States and one of the rarest of all freshwater fish, as researchers have failed to find the fish in any other location. The Alabama cavefish exists in a fragile ecosystem based on nutrient-rich guano of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Conservation Fund
The Conservation Fund is a U.S. nonprofit organization with a dual charter to pursue environmental preservation and economic development. From 2008–2018, it has placed more than 500,000 acres under conservation management through a program whose goal is to purchase and permanently protect working forests. Since its founding in 1985, the organization has protected land and water in all 50 states, including parks, historic battlefields, and wild areas. The Fund works with community and government leaders, businesses, landowners, conservation nonprofits and other partners to integrate economic and environmental objectives. The Conservation Fund was founded in 1985 by Pat Noonan, former head of the Nature Conservancy. The current CEO is Larry Selzer. About 140 full-time staff work in the Fund's headquarters, located in Arlington, Virginia, and in offices in several states across the U.S. including California, Florida, Michigan, Minnesota, North Carolina, Pennsylvania, Oregon, Texa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monsanto Company
The Monsanto Company () was an American agrochemical and agricultural biotechnology corporation founded in 1901 and headquartered in Creve Coeur, Missouri. Monsanto's best known product is Roundup (herbicide), Roundup, a glyphosate-based herbicide, developed in the 1970s. Later the company became a major producer of genetic engineering, genetically engineered crops. In 2018, the company ranked 199th on the Fortune 500 of the largest United States corporations by revenue. Monsanto was one of four groups to introduce genes into plants in 1983, and was among the first to conduct field trials of genetically modified crops in 1987. It was one of the top 10 US chemical companies until it divested most of its chemical businesses between 1997 and 2002, through a process of mergers and spin-offs that focused the company on biotechnology. Monsanto was one of the first companies to apply the History of biotechnology#Biotechnology and industry, biotechnology industry business model to agric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquifer
An aquifer is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials (gravel, sand, or silt). Groundwater from aquifers can be extracted using a water well. Aquifers vary greatly in their characteristics. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Related terms include aquitard, which is a bed of low permeability along an aquifer, and aquiclude (or ''aquifuge''), which is a solid, impermeable area underlying or overlying an aquifer, the pressure of which could create a confined aquifer. The classification of aquifers is as follows: Saturated versus unsaturated; aquifers versus aquitards; confined versus unconfined; isotropic versus anisotropic; porous, karst, or fractured; transboundary aquifer. Challenges for using groundwater include: overdrafting (extracting groundwater beyond the Dynamic equilibrium, equilibrium yield of the aquifer), groundwater-related subsidence of land, gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Runoff
Surface runoff (also known as overland flow) is the flow of water occurring on the ground surface when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil. This can occur when the soil is saturated by water to its full capacity, and the rain arrives more quickly than the soil can absorb it. Surface runoff often occurs because impervious areas (such as roofs and pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or man-made processes. Surface runoff is a major component of the water cycle. It is the primary agent of soil erosion by water. The land area producing runoff that drains to a common point is called a drainage basin. Runoff that occurs on the ground surface before reaching a channel can be a nonpoint source of pollution, as it can carry man-made contaminants or natural forms of pollution (such as rotting leaves). Man-made contaminants in runoff i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Table
The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. It can also be simply explained as the depth below which the ground is saturated. The water table is the surface where the water pressure head is equal to the atmospheric pressure (where gauge pressure = 0). It may be visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity. The groundwater may be from precipitation or from groundwater flowing into the aquifer. In areas with sufficient precipitation, water infiltrates through pore spaces in the soil, passing through the unsaturated zone. At increasing depths, water fills in more of the pore spaces in the soils, until a zone of saturation is reached. Below the water table, in the phreatic zone (zone of saturation), layers of permeable rock that yield groundwater are called aquifers. In less permeable soils, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cotton
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor percentages of waxes, fats, pectins, and water. Under natural conditions, the cotton bolls will increase the dispersal of the seeds. The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa, Egypt and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa. Cotton was independently domesticated in the Old and New Worlds. The fiber is most often spun into yarn or thread and used to make a soft, breathable, and durable textile. The use of cotton for fabric is known to date to prehistoric times; fragments of cotton fabric dated to the fifth millennium BC have been found in the Indus Valley civilization, as well as fabric remnants dated back ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hickory
Hickory is a common name for trees composing the genus ''Carya'', which includes around 18 species. Five or six species are native to China, Indochina, and India (Assam), as many as twelve are native to the United States, four are found in Mexico, and two to four are native to Canada. A number of hickory species are used for products like edible nuts or wood. Hickories are temperate forest trees with pinnately compound leaves and large nuts. Hickory flowers are small, yellow-green catkins produced in spring. They are wind-pollinated and self-incompatible. The fruit is a globose or oval nut, long and diameter, enclosed in a four-valved husk, which splits open at maturity. The nut shell is thick and bony in most species, and thin in a few, notably the pecan (''C. illinoinensis''); it is divided into two halves, which split apart when the seed germinates. Etymology The name "hickory" derives from a Native American word in an Algonquian language (perhaps Powhatan). It is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
