Entries - Entry Category: Land and Resources - Starting with I

Flowing through the Ozark borderlands of eastern Oklahoma and western Arkansas, the Illinois River is fed by 1,660 square miles of drainage area and serves as the primary tributary for the largest lake in eastern Oklahoma, Tenkiller Ferry Reservoir. The Illinois has historically represented an area of significant economic importance and ecological convergence between the hilly Ozarks and the southern plains. The watershed of the Illinois River comprises five counties in Oklahoma and Arkansas, providing more than 100 miles of recreational opportunities. The Illinois River system consists of the Illinois and its tributaries, Flint and Baron Fork creeks, both of which are major tourist destinations for the south-central United States and provide a substantial portion of tourism income for the …

The Independence Steam Electric Station (ISES) is a coal-fired electric-energy-generating plant consisting of two units nameplate-rated at 850 megawatts (MW). Located near Newark (Independence County), the units—constructed by Arkansas Power and Light Company (AP&L, now Entergy Arkansas)—were launched into service in 1983 and 1984 following vigorous litigation before the Arkansas Public Service Commission (APSC) in 1978. The ISES plant burns Powder River Basin low-sulfur coal transported to Arkansas from the Antelope Coal Mine in Wyoming by rail in cars owned by Entergy. ISES—originally proposed by AP&L, Arkansas Electric Cooperative Corporation (AECC), and City Water and Light (CWL) of Jonesboro (Craighead County), and now also co-owned or leased by several other Arkansas municipal utilities—operates in coordination with other generating plants within …

Industrial sand is a term normally applied to high-purity silica sand products with closely controlled sizing. Industrial sand is a more precisely sized and shape-graded product than common sand used as aggregates in construction materials, such as concrete and asphalt. Typically, sand is composed predominantly of quartz (SiO2), and, in the case of industrial sand, the shape, size, and composition of the grains are important to determining suitable uses for the product. Sizing of industrial sand is typically done by screening and air sorting of a dried product. The term “sand,” as used by geologists, generally refers to individual grains that range in particle size from 0.00246 to 0.0787 inch (0.0625–2.0 millimeter) in diameter. This grain size ranges from just …

An “invasive species” is defined as a species that is non-native (or alien) to the ecosystem under consideration and whose introduction causes or is likely to cause economic or environmental problems or harm to human health. It typically matures and reproduces quickly and increases its geographic range rapidly, establishing populations and persisting over large areas. There are several reasons for this spread, including favorable environmental conditions and lack of natural predators, competitors, and diseases that normally regulate their populations, allowing invasive species to thrive. Invasive biota not only includes a variety of plants but also incorporates a wide variety of invertebrates and higher taxa from their native sites. As invasive species extend and dominate ecosystems, they invariably reduce native biodiversity …

According to the U.S. Department of Agriculture (USDA) Forest Service, an invasive species is “a species that is non-native or alien to the ecosystem under consideration and whose introduction does or is likely to cause economic or environmental harm or harm to human health.” As such, there are a suite of negative effects from exotic plant species that include replacing rare and endangered species, hybridizing and competing with native species, killing trees and shrubs, altering hydrological patterns and stream function, preventing forest regeneration, possibly containing toxins that may be lethal to certain animals, changing fire patterns, and harboring pathogens. The cost to control invasive species and the damages they cause to property and natural resources in the United States is …

Shortly after experimental forests were authorized for the U.S. Forest Service (USFS)—an agency of the U.S. Department of Agriculture (USDA)—by the McSweeney-McNary Forest Research Act of 1928, the Ouachita National Forest (ONF) reached out to the USFS’s Southern Forest Experiment Station (SFES). The ONF staff members wanted the SFES to develop an experimental forest to help them learn about managing the shortleaf pine (Pinus echinata)–dominated forests of the Ouachita Mountains in Arkansas. In early 1931, the SFES dispatched a three-man crew to examine possible locations on the ONF, but they did not find any areas they thought were suitable for silvicultural research. The ONF and the USFS’s Washington DC office persisted, and a few years later the SFES suggested an experimental forest on a large tract of virgin and cutover timber along the Irons Fork …

Island 37 is a stretch of land that is in the legal possession of the State of Tennessee but is physically joined to Arkansas. Because competing claims of jurisdiction left it in something of a legal void, Island 37 became, in the early twentieth century, an outpost for bootleggers and other criminals. Police action taken against those criminals resulted in one of the many U.S. Supreme Court cases regarding ongoing boundary disputes between Arkansas and Tennessee. The Mississippi River is a dynamic waterway, often cutting new channels and thus either forming islands or causing former islands to merge with the eastern or western banks. The legal principle of avulsion holds that land cut off by the river from one state …

Long believed to be extinct, the ivory-billed woodpecker (Campephilus principalis) was apparently rediscovered in the Big Woods of east Arkansas in 2004. More than sixty years after the last confirmed sighting in the United States, a research team announced on April 28, 2005, that at least one male ivory-bill survived in the vast bottomland swamp forest. Published in the journal Science, the findings included multiple sightings of the elusive woodpecker and frame-by-frame analyses of brief video footage. The evidence was gathered during an intensive year-long search in the Cache River and White River National Wildlife Refuges in eastern Arkansas, involving more than fifty experts and field biologists working as part of the Big Woods Conservation Partnership, led by the Cornell …