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Little Patuxent River
The Patuxent River is a tributary of the Chesapeake Bay in the state of Maryland. There are three main river drainages for central Maryland: the Potomac River to the west passing through Washington, D.C., the Patapsco River to the northeast passing through Baltimore, and the Patuxent River between the two. The Patuxent drainage basin, watershed had a rapidly growing population of 590,769 in 2000. It is the largest and longest river entirely within Maryland, and its drainage basin, watershed is the largest completely within the state. Geography The river source, from the Chesapeake, is in the hills of the Maryland Piedmont (United States), Piedmont near the intersection of four counties – Howard County, Maryland, Howard, Frederick County, Maryland, Frederick, Montgomery County, Maryland, Montgomery and Carroll County, Maryland, Carroll, and only from Parr's Spring, the source of the south fork of the Patapsco River. Flowing in a generally southeastward direction, the P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowie, Maryland
Bowie () is a city in Prince George's County, Maryland, United States. Per the 2020 census, the population was 58,329. Bowie has grown from a small railroad stop to the largest municipality in Prince George's County, and the fifth most populous city and third largest city by area in the U.S. state of Maryland. In 2014, CNN Money ranked Bowie 28th in its Best Places to Live (in the United States) list. History 19th century The city of Bowie owes its existence to the railway. In 1853, Colonel William Duckett Bowie obtained a charter from the Maryland legislature to construct a rail line into Southern Maryland. In 1869, the Baltimore & Potomac Railroad Company began the construction of a railroad from Baltimore to Southern Maryland, terminating in Pope's Creek. The area had already been dotted with small farms and large tobacco plantations in an economy based on agriculture and slavery. In 1870, Ben Plumb, a land speculator and developer, sold building lots around the railroad jun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick County, Maryland
Frederick County is located in the northern part of the U.S. state of Maryland. At the 2020 U.S. Census, the population was 271,717. The county seat is Frederick. Frederick County is included in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Like other outlying sections of the Washington metropolitan area, Frederick County has experienced a rapid population increase in recent years. It borders the southern border of Pennsylvania and the northeastern border of Virginia. The county is the location of Catoctin Mountain Park (encompassing the presidential retreat Camp David) and the U.S. Army's Fort Detrick. Etymology The namesake of Frederick County and its county seat is unknown, but it was probably either Frederick, Prince of Wales, or Frederick Calvert, 6th Baron Baltimore. History Frederick County was created in 1748 by the Province of Maryland from parts of Prince George's County and Baltimore County. In 1776, following US independence, F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecosystems
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and microbes. Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which forms the soil and topography, control the overall structure of an ecosystem but are not themselves influenced by the ecosystem. Interna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agricultural
Agriculture or farming is the practice of cultivating Plant, plants and livestock. Agriculture was the key development in the rise of Sedentism, sedentary human civilization, whereby farming of Domestication, domesticated species created food Economic surplus, surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into Food, foods, Fiber, fibers, fuels, and raw materials (such as Natural rubber, rubber). Food clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calvert County, Maryland
Calvert County is located in the U.S. state of Maryland. As of the 2020 census, the population was 92,783. Its county seat is Prince Frederick. The county's name is derived from the family name of the Barons of Baltimore, the proprietors of the English Colony of Maryland Calvert County is included in the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area. It occupies the Calvert Peninsula, which is bordered on the east by Chesapeake Bay and on the west by the Patuxent River. Calvert County is part of the Southern Maryland region. The county has one of the highest median household incomes in the United States. It is one of the older counties in Maryland, after St. Mary's, Kent County and Anne Arundel counties. History Early History In 1608, Captain John Smith was the first European to sail past Calvert County while exploring the western shore of the Chesapeake Bay. On his map, he accurately represented the Patuxent River as well as several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anne Arundel County, Maryland
Anne Arundel County (; ), also notated as AA or A.A. County, is located in the U.S. state of Maryland. As of the 2020 United States census, its population was 588,261, an increase of just under 10% since 2010. Its county seat is Annapolis, which is also the capital of the state. The county is named for Lady Anne Arundell (c. 1615/1616–1649), a member of the ancient family of Arundells in Cornwall, England, and the wife of Cecilius Calvert, 2nd Baron Baltimore (1605–1675), founder and first lord proprietor of the colony Province of Maryland. Anne Arundel County is included in the Baltimore–Columbia–Towson metropolitan statistical area, which is also included in the Washington–Baltimore–Arlington combined statistical area. History The county was named for Lady Anne Arundell, (1615/1616–1649), the daughter of Thomas Arundell, 1st Baron Arundell of Wardour, members of the ancient family of Arundells in Cornwall, England. She married Cecilius Calvert, second Lord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Mary's County, Maryland
St. Mary's County, established in 1637, is a county located in the U.S. state of Maryland. As of the 2020 census, the population was 113,777. Its county seat is Leonardtown. The name is in honor of Mary, the mother of Jesus. St. Mary's County comprises the California-Lexington Park, Maryland Metropolitan Statistical Area, which also is included in the Washington-Baltimore- Arlington, DC-MD- VA- WV- PA Combined Statistical Area. It is part of the Southern Maryland region. The county was the home to the first Maryland Colony, and the first capitol of the Colony of Maryland. Settled by English Catholics, it is considered to be the birthplace of religious freedom in North America, at a time when the British colonies were settled primarily by Protestants. The county is home to the Patuxent River Naval Air Station and St. Mary's College of Maryland. Traditionally, St. Mary's County has been known for its unique and historic culture of Chesapeake Bay tidewater farming, fishing, and cra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles County, Maryland
Charles County is a county in Southern Maryland. As of the 2020 census, the population was 166,617. The county seat is La Plata. The county was named for Charles Calvert (1637–1715), third Baron Baltimore. Charles County is part of the Washington metropolitan area and the Southern Maryland region. With a median household income of $103,678, it is the 39th wealthiest county in the United States and the highest-income county with a Black-majority population. History Charles County was created in 1658 by an Order in Council. There was also an earlier Charles County from 1650 to 1654, sometimes referred to in historic documents as Old Charles County, which consisted largely of lands within today’s borders but "included parts of St. Mary’s, Calvert, present-day Charles and Prince George’s County". In April 1865, John Wilkes Booth made his escape through Charles County after shooting President Abraham Lincoln. He was on his way to Virginia. He stopped briefly in Waldorf ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waysons Corner, Maryland
Waysons Corner is an Unincorporated area, unincorporated community in Anne Arundel County, Maryland, Anne Arundel County, Maryland, United States, east of Upper Marlboro, Maryland, Upper Marlboro. Waysons Corner is located at the junction of Maryland Route 4, Maryland routes 4 and Maryland Route 4, 408 (Southern Maryland Boulevard), where the former changes names to Pennsylvania Avenue (Washington, D.C.), Pennsylvania Avenue. Geography Waysons Corner is five miles west of Lothian, Maryland, Lothian but hosts the current "Lothian" post office and is in the current Lothian postal zip code area. History In the 1950s, a bingo and slots machine parlor was opened in a warehouse here. When gambling was outlawed in Maryland in the 1960s, the Wayson family kept the bingo business running as Wayson's Bingo in a 750-seat hall.Washington Post, https://www.washingtonpost.com/wp-dyn/articles/A56500-2004Dec10.html Las Vegas business magnate Steve Wynn, whose resorts on the Las Vegas Strip inclu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prince George's County, Maryland
) , demonym = Prince Georgian , ZIP codes = 20607–20774 , area codes = 240, 301 , founded date = April 23 , founded year = 1696 , named for = Prince George of Denmark , leader_title = Executive , leader_name = Angela D. Alsobrooks ( D) , seat wl = Upper Marlboro , largest city wl = Bowie , area_total_sq_mi = 499 , area_land_sq_mi = 483 , area_water_sq_mi = 16 , area percentage = 3.2 , census yr = 2020 , pop = 967201 , pop_est_as_of = 2021 , population_est = , density_sq_mi = 1900 , district = 4th , district2 = 5th , time zone = Eastern , web = www.princegeorgescountymd.gov Prince George's County (often shortened to PG County) is a county located in the U.S. state of Maryland bordering the eastern portion of Washington, D.C. As of the 2020 U.S. census, the population was 967,201, making it the second-most populous county in Maryland, behind Montgomery County. The 2020 census counted an increase of nearly 104,000 in the previous ten years. Its c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Anne, Prince George's County, Maryland
Queen Anne in Prince George's County, Maryland, United States, is a former port on the Patuxent River. It was delineated as a CDP for the 2010 census, at which time it had a population of 1,280. Per the 2020 census, the population was 1,405. Geography Queen Anne is located at 38°53'55" North, 76°40'42" West (38.8987239 -76.6782992). Most of the town's former waterfront area is now part of Patuxent River Park, owned and operated by the Maryland-National Capital Park and Planning Commission. This includes hiking trails, two paddling launches, fishing locations, and an environmental education center operated by 4H. The head of tidewater on the Patuxent River is at the downstream (4H---a group not affiliated with the National 4H Club) launch site in Queen Anne. According to the U.S. Census Bureau, Queen Anne has a total area of , of which , or 0.25%, is water. History The town was created in 1706 when the colonial Maryland Legislature authorized surveying and laying out the to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
