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Forests Of The United States
It has been estimated that before European settlement, forests in the United States mainland covered nearly . Since the mid-1600s, about of forest have been cleared, primarily for agriculture during the 19th century. As of 2016, roughly 36.21% (about one-third of the U.S.) is forested.https://www.fs.fed.us/sites/default/files/fs_media/fs_document/publication-15817-usda-forest-service-fia-annual-report-508.pdf USDA - Forest Inventory And Analysis Fiscal Year 2016 Business Report. Page 71-72 (Page 79-80 of PDF). ''Table B-11. Land and forest area and FIA annualized implementation status by State and region, FY 2016.'' Data for territories: ''Table B-10. Status of FIA special project areas excluded from annualized inventory.'' Retrieved January 8, 2019. Excluding the U.S. territories, forested land in the U.S. covers roughly 818,814,000 acres (3,313,622 square kilometers). As of 2005, the United States ranked seventh in the rate of loss of its old growth forests. Current coverage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tongass National Forest Juneau Img 7501
Tongass may refer to: * Fort Tongass * Tongass Highway * Tongass Island * Tongass Narrows, a channel by Ketchikian, Alaska, which forms part of the Alaska Marine Highway * Tongass National Forest * Tongass Passage, a strait on the Canada-United States border {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watershed Management
Watershed management is the study of the relevant characteristics of a watershed aimed at the sustainable distribution of its resources and the process of creating and implementing plans, programs and projects to sustain and enhance watershed functions that affect the plant, animal, and human communities within the watershed boundary. Features of a watershed that agencies seek to manage to include water supply, water quality, drainage, stormwater runoff, water rights and the overall planning and utilization of watersheds. Landowners, land use agencies, stormwater management experts, environmental specialists, water use surveyors and communities all play an integral part in watershed management. Controlling pollution In agricultural systems, common practices include the use of buffer strips, grassed waterways, the re-establishment of wetlands, and forms of sustainable agriculture practices such as conservation tillage, crop rotation and inter-cropping. After certain p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Virginia
West Virginia is a mountainous U.S. state, state in the Southern United States, Southern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States.The United States Census Bureau, Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the Bureau of Labor Statistics classifies the state as a part of the Mid-Atlantic (United States), Mid-Atlantic regionMid-Atlantic Home : Mid-Atlantic Information Office: U.S. Bureau of Labor Statistics" www.bls.gov. Archived. It is bordered by Pennsylvania and Maryland to the northeast, Virginia to the southeast, Kentucky to the southwest, and Ohio to the northwest. West Virginia is the List of U.S. states and territories by area, 10th-smallest state by area and ranks as the List of U.S. states and territories by population, 12th-least populous state, with a population of 1,769,979 residents. The capital and List of municipalities in West Virginia, most populou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Mariana Islands
The Northern Mariana Islands, officially the Commonwealth of the Northern Mariana Islands (CNMI), is an Territories of the United States, unincorporated territory and Commonwealth (U.S. insular area), commonwealth of the United States consisting of 14 islands in the northwestern Pacific Ocean.Lin, Tom C.W.Americans, Almost and Forgotten 107 California Law Review (2019) The CNMI includes the 14 northernmost islands in the Mariana Islands, Mariana Archipelago; the southernmost island, Guam, is a separate U.S. territory. The Northern Mariana Islands were listed by the United Nations as a non-self-governing territory until 1990. During the colonial period, the Northern Marianas were variously under the control of the Spanish Empire, Spanish, German colonial empire, German, and Empire of Japan, Japanese empires. After World War II, the islands were part of the United Nations trust territories under American administration before formally joining the United States as a territory in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Samoa
American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island country of Samoa, east of the International Date Line and the Wallis and Futuna Islands, west of the Cook Islands, north of Tonga, and some south of Tokelau. American Samoa is the southernmost territory of the United States, situated southwest of the U.S. state of Hawaii, and one of two U.S. territories south of the Equator, along with the uninhabited Jarvis Island. American Samoa consists of the eastern part of the Samoan Islands, Samoan archipelagothe inhabited volcanic islands of Tutuila, Aunuʻu, Ofu-Olosega, Ofu, Ofu-Olosega, Olosega and Taʻū and the uninhabited Rose Atollas well as Swains Island, a remote coral atoll in the List of islands of Tokelau, Tokelau volcanic island group. The total land area is , slightly larger than Washing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Hampshire
New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec to the north. Of the List of states and territories of the United States, 50 U.S. states, New Hampshire is the List of U.S. states and territories by area, seventh-smallest by land area and the List of U.S. states and territories by population, tenth-least populous, with a population of 1,377,529 residents as of the 2020 United States census, 2020 census. Concord, New Hampshire, Concord is the List of capitals in the United States, state capital and Manchester, New Hampshire, Manchester is the List of municipalities in New Hampshire, most populous city. New Hampshire's List of U.S. state mottos, motto, "Live Free or Die", reflects its role in the American Revolutionary War; its state nickname, nickname, "The Granite State", refers to its ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maine
Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and territories of Canada, Canadian provinces of New Brunswick and Quebec to the northeast and northwest, and shares a maritime border with Nova Scotia. Maine is the largest U.S. state, state in New England by total area, nearly larger than the combined area of the remaining five states. Of the List of states and territories of the United States, 50 U.S. states, it is the List of U.S. states and territories by area, 12th-smallest by area, the List of U.S. states and territories by population, 9th-least populous, the List of U.S. states by population density, 13th-least densely populated, and the most rural. Maine's List of capitals in the United States, capital is Augusta, Maine, Augusta, and List of municipalities in Maine, its most populous c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical
The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's axial tilt; the width of the tropics (in latitude) is twice the tilt. The tropics are also referred to as the tropical zone and the torrid zone (see geographical zone). Due to the overhead sun, the tropics receive the most solar energy over the course of the year, and consequently have the highest temperatures on the planet. Even when not directly overhead, the sun is still close to overhead throughout the year, therefore the tropics also have the lowest seasonal variation on the planet; "winter" and "summer" lose their temperature contrast. Instead, seasons are more commonly divided by precipitation variations than by temperature variations. The tropics maintain wide diversity of local climates, such as rain forests, monsoons, sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only state not on the North American mainland, the only state that is an archipelago, and the only state in the tropics. Hawaii consists of 137 volcanic islands that comprise almost the entire Hawaiian Islands, Hawaiian archipelago (the exception, which is outside the state, is Midway Atoll). Spanning , the state is Physical geography, physiographically and Ethnology, ethnologically part of the Polynesian subregion of Oceania. Hawaii's ocean coastline is consequently the List of U.S. states and territories by coastline, fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Niihau, Kauai, Kauai, Oahu, Oahu, Molokai, Molokai, Lanai, Lānai, Kahoʻolawe, Kahoolawe, Maui, and Hawaii (island), Hawaii, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the northernmost, westernmost, and easternmost (the Aleutian Islands cross the 180th meridian into the eastern hemisphere) state in the United States. It borders the Canadian territory of Yukon and the province of British Columbia to the east. It shares a western maritime border, in the Bering Strait, with Russia's Chukotka Autonomous Okrug. The Chukchi and Beaufort Seas of the Arctic Ocean lie to the north, and the Pacific Ocean lies to the south. Technically, it is a semi-exclave of the U.S., and is the largest exclave in the world. Alaska is the largest U.S. state by area, comprising more total area than the following three largest states of Texas, California, and Montana combined, and is the seventh-largest subnational division i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreal Forest
Taiga or tayga ( ; , ), also known as boreal forest or snow forest, is a biome characterized by pinophyta, coniferous forests consisting mostly of pines, spruces, and larches. The taiga, or boreal forest, is the world's largest land biome. In North America, it covers most of inland Canada, Alaska, and parts of the northern contiguous United States. In Eurasia, it covers most of Sweden, Finland, much of Russia from Karelia in the west to the Pacific Ocean (including much of Siberia), much of Norway and Estonia, some of the Scottish Highlands, some lowland/coastal areas of Iceland, and areas of northern Kazakhstan, northern Mongolia, and northern Japan (on the island of Hokkaido). The principal tree species, depending on the length of the growing season and summer temperatures, vary across the world. The taiga of North America is mostly spruce; Scandinavian and Finland, Finnish taiga consists of a mix of Norway spruce, spruce, pines and Betula, birch; Russian taiga has spruces, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medicinal Plant
Medicinal plants, also called medicinal herbs, have been discovered and used in traditional medicine practices since prehistoric times. Plants synthesize hundreds of chemical compounds for various functions, including Plant defense against herbivory, defense and protection against insects, fungi, Plant disease resistance, diseases, against parasites and herbivorous mammals. The earliest historical records of herbs are found from the Sumerian civilization, where hundreds of medicinal plants including opium are listed on clay tablets, . The Ebers Papyrus from ancient Egypt, , describes over 850 plant medicines. The Greek physician Pedanius Dioscorides, Dioscorides, who worked in the Roman army, documented over 1000 recipes for medicines using over 600 medicinal plants in , ; this formed the basis of pharmacopoeias for some 1500 years. Drug research sometimes makes use of ethnobotany to search for pharmacologically active substances, and this approach has yielded hundreds of use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
