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Changdao County
Changdao County () was a county in Yantai, a prefectural area of Shandong in the People's Republic of China. It consists of the Changshan Islands within the Bohai Strait, directly north of Penglai. They are known for their sandy beaches and picturesque limestone cliffs. The total land area measured and the coastline . The population in 2020 was 40,898. In 2020, Changdao County was merged to Penglai county-level city and became Penglai District. Geography The Changshan Islands (), also known as the Temple Islands or Miaodao Archipelago () are an archipelago of 32 islands located across the southern portion of the Bohai Strait, the waterway connecting the Bohai Sea to the Yellow Sea, collectively named after the two largest islands. In Chinese, they are also known as the "Long Islands" (), and anciently as the "Sandy Gate Islands" (). The islands are located between Jiaodong and Liaodong Peninsula, at the confluence of the Yellow Sea and Bohai Sea. They face Yantai in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Li County, Gansu
Li County or Lixian is an administrative division of the prefecture-level city of Longnan in southeastern Gansu, a northwestern province of China. The 2010 Chinese census found a population of 458,237, a decline of around 25,000 from the year 2000 but still placing it second in size within its prefecture.National Bureau of Statistics of the People's Republic of China. Cited in ''Geohive''.China – Gansu Sheng". 2013. Accessed 5 December 2013. The county seat is also known as Lixian, formerly romanized as Li Hsien. It is located at the confluence of the Western Han and Yanzi rivers, tributaries of the Jialing and Yangtze watersheds. Commanding a valley connecting the Yellow and Yangtze river systems, it was an important outpost of the Shang and Zhou dynasties and was the initial seat of the Ying family who later established the kingdom and empire of Qin. Geography Lixian is bordered within Longnan by the counties of Xihe to the east, Wudu to the south, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tertiary Period
The Tertiary ( ) is an obsolete Period (geology), geologic period spanning 66 million to 2.6 or 1.8 million years ago. The period began with the extinction of the non-bird, avian dinosaurs in the Cretaceous–Paleogene extinction event, at the start of the Cenozoic, Cenozoic Era, and extended to the beginning of the Quaternary glaciation at the end of the Pliocene, Pliocene Epoch. The Tertiary has not been recognised by the International Commission on Stratigraphy (ICS) since the late 1980s, with the timespan of the Tertiary now being split in to the earlier Paleogene and the more recent Neogene periods, though the Tertiary continues to be used in some scientific publications. Historical use of the term The term Tertiary was first used by Giovanni Arduino (geologist), Giovanni Arduino during the mid-18th century. He classified geologic time into primitive (or primary), secondary, and tertiary periods based on observations of geology in Northern Italy. Later a fourth period, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelp
Kelps are large brown algae or seaweeds that make up the order (biology), order Laminariales. There are about 30 different genus, genera. Despite its appearance and use of photosynthesis in chloroplasts, kelp is technically not a plant but a stramenopile (a group containing many protists). Kelp grow from stalks close together in kelp forest, very dense areas like forests under shallow temperate and Arctic oceans. They were previously thought to have appeared in the Miocene, 5 to 23 million years ago based on fossils from California. New fossils of kelp holdfasts from early Oligocene rocks in Washington State show that kelps were present in the northeastern Pacific Ocean by at least 32 million years ago. The organisms require nutrient-rich water with temperatures between . They are known for their high growth rate—the genera ''Macrocystis'' and ''Nereocystis'' can grow as fast as half a metre a day (that is, about 20 inches a day), ultimately reaching .Thomas, D. 2002. ''Seaweed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bivalve
Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed by a calcified exoskeleton consisting of a hinged pair of half-bivalve shell, shells known as valve (mollusc), valves. As a group, bivalves have no head and lack some typical molluscan organs such as the radula and the odontophore. Their gills have evolved into ctenidium (mollusc), ctenidia, specialised organs for feeding and breathing. Common bivalves include clams, oysters, Cockle (bivalve), cockles, mussels, scallops, and numerous other family (biology), families that live in saltwater, as well as a number of families that live in freshwater. Majority of the class are benthic filter feeders that bury themselves in sediment, where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spine (zoology), spiny protective test (biology), tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessility (motility), sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their Echinoderm#Larval development, pluteus larvae featuring Bilateral symmetry, bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abalone
Abalone ( or ; via Spanish , from Rumsen language, Rumsen ''aulón'') is a common name for any small to very large marine life, marine gastropod mollusc in the family (biology), family Haliotidae, which once contained six genera but now contains only one genus, ''Haliotis''. Other common names are ear shells, sea ears, and, now rarely, muttonfish or muttonshells in parts of Australia, ormer in the United Kingdom, perlemoen in South Africa, and pāua in New Zealand. The number of abalone species recognized worldwide ranges between 30 and 130 with over 230 species-level taxa described. The most comprehensive treatment of the family considers 56 species valid, with 18 additional subspecies. The gastropod shell, shells of abalone have a low, open spiral structure, and are characterized by several open respiratory pores in a row near the shell's outer edge. The thick inner layer of the shell is composed of nacre, which in many species is highly iridescence, iridescent, giving rise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Cucumber
Sea cucumbers are echinoderms from the class (biology), class Holothuroidea ( ). They are benthic marine animals found on the sea floor worldwide, and the number of known holothuroid species worldwide is about 1,786, with the greatest number being in the Asia–Pacific region. Sea cucumbers serve a useful role in the marine ecosystem as detritivores who help recycle nutrients, breaking down detritus and other organic matter, after which microbes can continue the decomposition process. Sea cucumbers have a leathery skin and an elongated body containing a single, branched gonad, are named for their overall resemblance to the fruit of the cucumber plant. Like all echinoderms, sea cucumbers have a calcified dermal endoskeleton, which is usually reduced to isolated microscopic ossicle (echinoderm), ossicles (or sclerietes) joined by connective tissue. In some species these can sometimes be enlarged to flattened plates, forming an armoured cuticle. In some abyssal or pelagic species s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquaculture
Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. Nelumbo nucifera, lotus). Aquaculture involves cultivating freshwater, brackish water, and saltwater populations under controlled or semi-natural conditions and can be contrasted with commercial fishing, which is the harvesting of wild fish. Aquaculture is also a practice used for restoring and rehabilitating marine and freshwater ecosystems. Mariculture, commonly known as marine farming, is aquaculture in seawater habitats and lagoons, as opposed to freshwater aquaculture. Pisciculture is a type of aquaculture that consists of fish farming to obtain Fish as food, fish products as food. Aquaculture can also be defined as the breeding, growing, and harvesting of fish and other aquatic plants, also known as farming in water. It is an environme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Townships Of China
Townships ( zh, s=乡, labels=no), formally township-level divisions ( zh, s=乡级行政区, labels=no), are the basic level (fourth-level administrative units) of political divisions in the People's Republic of China. They are similar to municipalities and communes in other countries and in turn may contain village committees and villages. In 1995 there were 29,648 townships and 17,570 towns (a total of 47,218 township-level divisions) in China which included the territories held by the Republic of China and claimed by the PRC. Much like other levels of government in mainland China, the township's governance is divided between the Communist Party Township Secretary, and the " county magistrate" ( zh, s=乡长, hp=xiāngzhǎng, links=no). The township party secretary, along with the township's party committee, determines policy. The magistrate is in charge of administering the daily affairs of government and executing policies as determined by the party committee. A township o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towns Of China
When referring to political divisions of China, town is the standard English translation of the Chinese (traditional: ; zh, p=zhèn , w=chen4). The Constitution of the People's Republic of China classifies towns as fourth-level administrative units, along with, for example, townships ( zh, s=乡 , p=xiāng). A township is typically smaller in population and more remote than a town. Similar to higher-level administrative units, the borders of a town would typically include an urban core (a small town with the population on the order of 10,000 people), as well as a rural area with some villages ( zh, labels=no, s=村 , p=cūn, or zh, labels=no, s=庄 , p=zhuāng). Map representation A typical provincial map would merely show a town as a circle centered at its urban area and labeled with its name, while a more detailed one (e.g., a map of a single county-level division) would also show the borders dividing the county or county-level city A county-level city () is a Count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subdistricts Of China
A subdistrict ( zh, c= / , p=jiēdào / jiē, l=streets and avenues / streets) is one of the smaller administrative divisions of China. It is a form of township-level division which is typically part of a larger urban area, as opposed to a discrete town (zhèn, 镇) surrounded by rural areas, or a rural township (xiāng, 乡). In general, urban areas are divided into subdistricts and a subdistrict is sub-divided into several residential communities or neighbourhood A neighbourhood (Commonwealth English) or neighborhood (American English) is a geographically localized community within a larger town, city, suburb or rural area, sometimes consisting of a single street and the buildings lining it. Neighbourh ...s as well as into villagers' groups (居民区/居住区, 小区/社区, 村民小组). The subdistrict's administrative agency is the subdistrict office ( zh, s=街道办事处, p=jīedào bànshìchù)"【街道办事处】 jiēdào bànshìchù 市辖区、不 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Meteorological Administration
The China Meteorological Administration (CMA) is the national weather service of the People's Republic of China. The institution is located in Beijing. History The agency was originally established in December 1949 as the Central Military Commission Meteorological Bureau. It replaced the Central Weather Bureau formed in 1941. In 1994, the CMA was transformed from a subordinate governmental body into one of the public service agencies under the State Council.CMA.gov history Meteorological bureaus are established in 31 provinces, autonomous regions and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
