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San Mateo Creek (Southern California)
San Mateo Creek is a stream in Southern California in the United States, whose watershed mostly straddles the border of Orange and San Diego Counties. It is about long, flowing in a generally southwesterly direction. Draining a broad valley bounded by the Santa Ana Mountains and Santa Margarita Mountains, San Mateo Creek is notable for being one of the last unchannelized streams in Southern California. One of the least developed watersheds on the South Coast, San Mateo Creek's drainage basin covers in parts of the Cleveland National Forest and Marine Corps Base Camp Pendleton. The first inhabitants were Native Americans primarily of the Acjachemen and Luiseño groups, followed by the Spanish who established ranchos in the area. The creek's usually perennial flow made it an important source of irrigation water, then in the later 19th century, there was a gold rush in the upper watershed. Most of the little development in the watershed was agriculture-based. The San Mateo Cree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cristianitos Creek
Cristianitos Canyon Creek, a stream or arroyo, tributary to San Mateo Creek, in the Santa Ana Mountains. its source is within Orange County, California. Its source is at an altitude of 800 feet, at the head of Cristianitos Canyon, in the foothills of the Santa Ana Mountains, in Orange County. It flows southwestward down Cristianitos Canyon, then turns south towards its confluence with San Mateo Creek, at an elevation of , in San Diego County. Along its course it has two major tributaries that come in from the left bank from the Santa Ana Mountains southwest and south of the Verdugo Potrero. First Gabino Canyon Creek, 7 miles long, that arises at an elevation of in the Santa Ana Mountains, in the extreme southwestern part of Riverside County, a mile north of the San Diego County line and flows southwest, adding the waters of La Paz Canyon Creek on its way to its confluence with Cristianitos Creek, at the mouth of Cristianitos Canyon, at an elevation of in Orange County. Sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riparian Zone
A riparian zone or riparian area is the interface between land and a river or stream. In some regions, the terms riparian woodland, riparian forest, riparian buffer zone, riparian corridor, and riparian strip are used to characterize a riparian zone. The word ''riparian'' is derived from Latin ''wiktionary:ripa, ripa'', meaning "bank (geography), river bank". Riparian is also the proper nomenclature for one of the terrestrial biomes of the Earth. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by aquatic plant, hydrophilic plants. Riparian zones are important in ecology, environmental resource management, and civil engineering because of their role in soil conservation, their habitat biodiversity, and the influence they have on terrestrial animal, terrestrial and semiaquatic fauna as well as aquatic ecosystems, including grasslands, woodlands, wetlands, and even non-vegetative areas. Riparian zones may be natural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Climate
A Mediterranean climate ( ), also called a dry summer climate, described by Köppen and Trewartha as ''Cs'', is a temperate climate type that occurs in the lower mid-latitudes (normally 30 to 44 north and south latitude). Such climates typically have dry summers and wet winters, with summer conditions being hot and winter conditions typically being mild. These weather conditions are typically experienced in the majority of Mediterranean-climate regions and countries, but remain highly dependent on proximity to the ocean, altitude and geographical location. The dry summer climate is found throughout the warmer middle latitudes, affecting almost exclusively the western portions of continents in relative proximity to the coast. The climate type's name is in reference to the coastal regions of the Mediterranean Sea, which mostly share this type of climate, but it can also be found in the Atlantic portions of Iberia and Northwest Africa, the Pacific portions of the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-arid
A semi-arid climate, semi-desert climate, or steppe climate is a aridity, dry climate sub-type. It is located on regions that receive precipitation below Evapotranspiration#Potential evapotranspiration, potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes. Defining attributes of semi-arid climates A more precise definition is given by the Köppen climate classification, which treats steppe climates (''BSh'' and ''BSk'') as intermediates between desert climates (BW) and humid climates (A, C, D) in ecological characteristics and agricultural potential. Semi-arid climates tend to support short, thorny or scrubby vegetation and are usually dominated by either grasses or shrubs as they usually cannot support forests. To determine if a location has a semi-arid climate, the precipitation threshold must first be determined. The method used to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grazing
In agriculture, grazing is a method of animal husbandry whereby domestic livestock are allowed outdoors to free range (roam around) and consume wild vegetations in order to feed conversion ratio, convert the otherwise indigestible (by human digestive system, human gut) cellulose within grass and other forages into meat, milk, wool and other animal products, often on land that is unsuitable for arable farming. Farmers may employ many different strategies of grazing for crop yield, optimum production: grazing may be continuous, seasonal, or rotational grazing, rotational within a grazing period. Longer rotations are found in ley farming, alternating arable and fodder crops; in rest rotation, deferred rotation, and mob grazing, giving grasses a longer time to recover or leaving land fallow. Patch-burn sets up a rotation of fresh grass after burning with two years of rest. Conservation grazing proposes to use grazing animals to improve the biodiversity of a site. Grazing has existed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agriculture
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least 105,000 years ago, nascent farmers only began planting them around 11,500 years ago. Sheep, goats, pigs, and cattle were domesticated around 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. In the 20th century, industrial agriculture based on large-scale monocultures came to dominate agricultural output. , small farms produce about one-third of the world's food, but large farms are prevalent. The largest 1% of farms in the world are greater than and operate more than 70% of the world's farmland. Nearly 40% of agricultural land is found on farms larger than . However, five of every six farm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Rush
A gold rush or gold fever is a discovery of gold—sometimes accompanied by other precious metals and rare-earth minerals—that brings an onrush of miners seeking their fortune. Major gold rushes took place in the 19th century in Australia, Greece, New Zealand, Brazil, Chile, South Africa, the United States, and Canada while smaller gold rushes took place elsewhere. In the 19th century, the wealth that resulted was distributed widely because of reduced migration costs and low barriers to entry. While gold mining itself proved unprofitable for most diggers and mine owners, some people made large fortunes, and merchants and transportation facilities made large profits. The resulting increase in the world's gold supply stimulated global trade and investment. Historians have written extensively about the mass migration, trade, colonization, and environmental history associated with gold rushes. Gold rushes were typically marked by a general buoyant feeling of a "free-for-al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ranchos Of California
In Alta California (now known as California) and Baja California, ranchos were concessions and land grants made by the Viceroyalty of New Spain, Spanish and History of Mexico, Mexican governments from 1775 to 1846. The Spanish concessions of land were made to retired soldiers as an inducement for them to settle in the frontier. These concessions reverted to the Spanish crown upon the death of the recipient. After independence, the Mexican government encouraged settlement in these areas by issuing much larger land grants to both native-born and naturalized Mexican citizens. The grants were usually two or more square league (unit), leagues, or in size. Unlike Spanish Concessions, Mexican land grants provided permanent, unencumbered ownership rights. Most ranchos granted by Mexico were located along the California coast around San Francisco Bay, inland along the Sacramento River, and within the San Joaquin Valley. When the Missions were secularized per the Mexican Secularizatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luiseño People
The Luiseño or Payómkawichum are an Indigenous people of California who, at the time of the first contacts with the Spanish in the 16th century, inhabited the coastal area of southern California, ranging from the present-day southern part of Los Angeles County to the northern part of San Diego County, and inland . In the Luiseño language, the people call themselves ''Payómkawichum'' (also spelled Payómkowishum), meaning "People of the West." After the establishment of Mission San Luis Rey de Francia (The Mission of Saint Louis King of France), "the Payómkawichum began to be called San Luiseños, and later, just Luiseños by Spanish missionaries due to their proximity to this San Luis Rey mission. Today there are six federally recognized tribes of Luiseño bands based in southern California, all with reservations. Another organized band is not federally recognized. History Pre-colonization The Payómkawichum were successful in utilizing a number of natural resources ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acjachemen
The Acjachemen () are an Indigenous people of California. Published maps often identify their ancestral lands as extending from the beach to the mountains, south from what is now known as Aliso Creek (Orange County), Aliso Creek in Orange County, California, Orange County to Las Pulgas Canyon in the northwestern part of San Diego County, California, San Diego County. However, sources also show that Acjachemen people shared sites with other Indigenous nations as far north as Puvunga in contemporary Long Beach. The Acjachemen language does not have any fluent speakers. It is closely related to the Luiseño language still spoken by the neighboring Payómkawichum (Luiseño) people. Name Spanish colonists called the Acjachemen Juaneños, following their conversion to Christianity at Mission San Juan Capistrano in the late 18th century. Today, many contemporary members of organizations for Acjachemen descendants prefer the term ''Acjachemen'' as their autonym, or name for themselves. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Club
The Sierra Club is an American environmental organization with chapters in all 50 U.S. states, Washington, D.C., Washington D.C., and Puerto Rico. The club was founded in 1892, in San Francisco, by preservationist John Muir. A product of the Progressivism in the United States, progressive movement, it was one of the first large-scale environmental preservation organizations in the world. It has lobbied for policies to promote sustainable energy and mitigating global warming, as well as Beyond Coal, opposing the use of coal, hydropower, and nuclear power. Its political endorsements generally favor Modern liberalism in the United States, liberal and progressive candidates in elections. In addition to political advocacy, the Sierra Club organizes outdoor recreation activities, and has historically been a notable organization for mountaineering and rock climbing in the United States. Members of the Sierra Club pioneered the Yosemite Decimal System of climbing, and were responsible fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
