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Nanyang Lake
Nansi Lake (), or Weishan Lake, administrated by Weishan County and located in Shandong Province in China, is the largest freshwater lake in the north of the country. It consists of four connected lakes: Weishan (), Zhaoyang (), Nanyang (), Dushan (). It is 120 km long and 1266 square km in area. History Early records: Zhaoyang Lake alone The first of the four lakes to appear in contemporary sources is Zhaoyang Lake, which Zou Yilin identifies with the Yuan-era Shanyang Lake (山阳湖) or Diaoyang Lake (刁阳湖). It was one of four major reservoirs dredged by the early Ming, and it was described as being 80 '' li'' long, and lying between Teng County (now Tengzhou county-level city) in the north and Pei County in the south. It was apparently located on the east side of the canal, and on higher ground than the canal itself, making it ideal as a natural reservoir. Sluices were built at the lake mouths in 1410 and rebuilt in 1494. In 1528, a major flood of the Yellow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jining
Jining () is a former capital of Shandong. Is a prefecture-level city in southwestern Shandong province. It borders Heze to the southwest, Zaozhuang to the southeast, Tai'an to the northeast, and the provinces of Henan and Jiangsu to the northwest and south respectively. Jining, which is located directly to the north of Lake Nanyang (), is today the northernmost city reachable by navigation on the Grand Canal of China making it an important inland port. Its population was 8,081,905 at the 2010 census, of whom 1,518,000 lived in the built-up (''or metro'') area made up of Rencheng urban district on , Yanzhou district not being totally conurbated yet. History The name Jining was first given to the region in the year 1271 during the Song dynasty, although the exact area and type of administrative district it refers to have varied over the centuries. Jining has several distinctive associations in Chinese history and culture, as in antiquity it was the birthplace and home o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retention Basin
A retention basin, sometimes called a retention pond, wet detention basin, or storm water management pond (SWMP), is an artificial pond with vegetation around the perimeter and a permanent pool of water in its design. It is used to manage stormwater runoff, for protection against flooding, for erosion control, and to serve as an artificial wetland and improve the water quality in adjacent bodies of water. It is distinguished from a detention basin, sometimes called a "dry pond", which temporarily stores water after a storm, but eventually empties out at a controlled rate to a downstream water body. It also differs from an infiltration basin which is designed to direct stormwater to groundwater through permeable soils. Wet ponds are frequently used for water quality improvement, groundwater recharge, flood protection, aesthetic improvement, or any combination of these. Sometimes they act as a replacement for the natural absorption of a forest or other natural process ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamogeton Crispus
''Potamogeton crispus'', the crisp-leaved pondweed, curly pondweed, curly-leaf pondweed or curled pondweed, is a species of aquatic plant (hydrophyte) native to Eurasia but an introduced species and often a noxious weed in North America. Description Curly-leaf pondweed is a rhizome, rhizomatous perennial herb producing a flattened, branching stem up to a meter long. The submerged leaves are alternately arranged. The leaves are sessile, linear or oblong in shape, long and wide. The leaves may be bright green, olive green or (especially later in the season) fibrous and brownish and have noticeably serrated margins, a feature that distinguishes them from other pondweeds. The leaves usually have wavy edges but this is not always apparent, especially on new growth. Turion (botany), Turions occur in leaf axils and at stem tips. The inflorescence is a short spike of flowers emerging above the water surface. It flowers from May until October. The turions of the plant develop along w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potamogeton Lucens
''Potamogeton'' is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (''Elodea canadensis''). The genus name means "river neighbor", originating from the Greek ''potamos'' (river) and ''geiton'' (neighbor). Morphology ''Potamogeton'' species range from large (stems of 6 m or more) to very small (less than 10 cm). Height is strongly influenced by environmental conditions, particularly water depth. All species are technically perennial, but some species disintegrate in autumn to a large number of asexually produced resting buds called turions, which serve both as a means of overwintering and dispersal. Turions may be borne on the rhizome, on the stem, or on stolons from the rhizome. Most species, however, persist by perennial creeping rhizomes. In some cases the turions are the only means to differentiate species. The leav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrophyte
Aquatic plants, also referred to as hydrophytes, are vascular plants and non-vascular plants that have adapted to live in aquatic environments ( saltwater or freshwater). In lakes, rivers and wetlands, aquatic vegetations provide cover for aquatic animals such as fish, amphibians and aquatic insects, create substrate for benthic invertebrates, produce oxygen via photosynthesis, and serve as food for some herbivorous wildlife. Familiar examples of aquatic plants include waterlily, lotus, duckweeds, mosquito fern, floating heart, water milfoils, mare's tail, water lettuce, water hyacinth, and algae. Aquatic plants require special adaptations for prolonged inundation in water, and for floating at the water surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common.Sculthorpe, C. D. 1967. The Biology of Aquatic Vascular Plants. Reprinted 1985 Edward Arnold, by London.H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drainage Basin
A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the drainage divide, made up of a succession of elevated features, such as ridges and hills. A basin may consist of smaller basins that merge at river confluences, forming a hierarchical pattern. Other terms for a drainage basin are catchment area, catchment basin, drainage area, river basin, water basin, and impluvium. In North America, they are commonly called a watershed, though in other English-speaking places, " watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation, a common task in environmental engineering and science. In a closed drainage basin, or endorheic basin, rather than flowing to the ocean, water converges toward the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelagic
The pelagic zone consists of the water column of the open ocean and can be further divided into regions by depth. The word ''pelagic'' is derived . The pelagic zone can be thought of as an imaginary cylinder or water column between the surface of the sea and the bottom. Conditions in the water column change with depth: pressure increases; temperature and light decrease; salinity, oxygen, micronutrients (such as iron, magnesium and calcium) all change. In a manner analogous to stratification in the Earth's atmosphere, the water column can be divided vertically into up to five different layers (illustrated in the diagram), with the number of layers depending on the depth of the water. Marine life is affected by bathymetry (underwater topography) such as the seafloor, shoreline, or a submarine seamount, as well as by proximity to the boundary between the ocean and the atmosphere at the ocean surface, which brings light for photosynthesis, predation from above, and wind st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Plant
Aquatic plants, also referred to as hydrophytes, are vascular plants and Non-vascular plant, non-vascular plants that have adapted to live in aquatic ecosystem, aquatic environments (marine ecosystem, saltwater or freshwater ecosystem, freshwater). In lakes, rivers and wetlands, aquatic vegetations provide cover for aquatic animals such as fish, amphibians and aquatic insects, create substrate (marine biology), substrate for benthic invertebrates, produce oxygen via photosynthesis, and serve as food for some herbivorous wildlife. Familiar examples of aquatic plants include Nymphaeaceae, waterlily, Nelumbo, lotus, duckweeds, mosquito fern, floating heart, water milfoils, Hippuris, mare's tail, water lettuce, water hyacinth, and algae. Aquatic plants require special adaptation (biology), adaptations for prolonged inundation in water, and for buoyancy, floating at the water surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1851–1855 Yellow River Floods
The 18511855 Yellow River floods were a series of natural disasters along the Yellow River in China, culminating in the 1855 channel change event. Some data is missing from this period, especially 1854. but it seems that water levels were high for most of 1851-1855.Fei, J., Lai, ZP., He, HM. et al. Limnology (2012) 13: 117. https://doi.org/10.1007/s10201-011-0361-5 The Yellow River had flowed along various courses south of the Shandong Peninsula since the 1194 Yellow River flood, disastrous floods of 1194. These mid-19th century floods reversed that, shifting the river into a path north of Shandong once again and causing it to empty into the Bohai Sea near Tianjin rather than the Yellow Sea on the Jiangsu coast. This natural disaster is thought to have been a major cause of the Taiping Rebellion and Nian Rebellion. See also * Yellow River flood (other), Floods of the Yellow River References 1851 in China 1852 in China 1853 in China 1854 in China 1855 in China Ye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nansi Lake NASA
{{disambig ...
Nansi can refer to: *Nansi Lake, lake in Shandong Province in China *Nansi Richards (1888–1979), Welsh harpist *Nansi District, sometimes spelled Nanxi, a district in Tainan, Taiwan *Nansi Nevins, singer in Sweetwater (band) *Nansi, a variant spelling of mythological spider Anansi Anansi or Ananse ( ; literally translates to ''spider'') is a character in Akan religion and folklore associated with stories, wisdom, knowledge, and trickery, most commonly depicted as a spider. Anansi is a character who reflects the culture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
