Dalian in the context of "Islet"

Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward retreat of the shoreline can be measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes. Coastal erosion may be caused by hydraulic action, abrasion, impact and corrosion by wind and water, and other forces, natural or unnatural.

On non-rocky coasts, coastal erosion results in rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion. Softer areas become eroded much faster than harder ones, which typically result in landforms such as tunnels, bridges, columns, and pillars. Over time the coast generally evens out. The softer areas fill up with sediment eroded from hard areas, and rock formations are eroded away. Also erosion commonly happens in areas where there are strong winds, loose sand, and soft rocks. The blowing of millions of sharp sand grains creates a sandblasting effect. This effect helps to erode, smooth and polish rocks. The definition of erosion is grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles.

Land reclamation, often known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamation ground, reclaimed land, or land fill.

The Kwantung Leased Territory (traditional Chinese and Japanese: 關東州; ; pinyin: Guāndōng zhōu; Wade–Giles: Kuan-tung-chou; rōmaji: Kantō-shū) was a leased territory of the Empire of Japan in the Liaodong Peninsula from 1905 to 1945.

Japan first acquired Kwantung from the Qing Empire in perpetuity in 1895 in the Treaty of Shimonoseki after victory in the First Sino-Japanese War. Kwantung was located at the militarily and economically significant southern tip of the Liaodong Peninsula at the entrance of the Bohai Sea, and included the port city of Ryojun (Port Arthur/Lüshunkou). Japan lost Kwantung weeks later in the Triple Intervention and the Qing transferred the lease to the Russian Empire in 1898, who governed the territory as Russian Dalian and rapidly developed infrastructure and the city of Dairen (Dalniy/Dalian). Japan re-acquired the Kwantung lease from Russia in 1905 in the Treaty of Portsmouth after victory in the Russo-Japanese War, continued to rapidly develop the territory, and obtained extraterritorial rights known as the South Manchuria Railway Zone. Japan extended the lease with the Republic of China in the Twenty-One Demands and used Kwantung as a base to launch the Second Sino-Japanese War. The Kwantung Leased Territory ceased to exist following the Surrender of Japan in World War II in September 1945 when the Soviet Red Army began to administer the region until Kwantung and the Lüshun base was handed over to the People's Republic of China on 16 April 1955.

Strictly speaking, China's legal system neither recognizes the concept of "sub-provincial administrative divisions" (Chinese: 副省级行政区; pinyin: Fùshěngjí xíngzhèngqū) or "sub-provincial cities" (Chinese: 副省级城市; pinyin: Fùshěngjí chéngshì) nor provides specific legislation for such designations, and these categories are absent from official statistical classifications. The so-called sub-provincial divisions or sub-provincial cities refer to special administrative status granted to selected prefecture-level cities during specific historical periods. This status is operationally defined by appointing deputy provincial-level (deputy ministerial-level) officials as the top leaders of municipal party and government organs. Correspondingly, institutional heads under these jurisdictions hold ranks half a grade higher than their counterparts in regular prefecture-level administrative divisions – specifically, party and government department leaders are designated as deputy departmental-level officials.

China has 15 sub-provincial cities, including Dalian, Qingdao, Ningbo, Xiamen and Shenzhen and 5 separately planned cities (Chinese: 计划单列市). Additionally, the Ili Kazakh Autonomous Prefecture in Xinjiang holds sub-provincial status as an autonomous prefecture, governing three administrative prefectures: the directly-administered counties and cities under Ili Prefecture, this refers specifically to the core jurisdictional area of Ili Profecture in its narrow administrative sense and also the administrative division-based statistical scope of the Ili Kazakh Autonomous Prefecture, and Tacheng (Tarbagatay) Prefecture and Altay Prefecture.

The Liaodong or Liaotung Peninsula (simplified Chinese: 辽东半岛; traditional Chinese: 遼東半島; pinyin: Liáodōng Bàndǎo) is a peninsula in southern Liaoning province in Northeast China, and makes up the southwestern coastal half of the Liaodong region. It is located between the mouths of the Daliao River (the historical lower section of the Liao River) in the west and the Yalu River in the east, and encompasses the territories of the whole sub-provincial city of Dalian and parts of prefectural cities of Yingkou, Anshan and Dandong.

The word "Liaodong" literally means "Liao region's east", referring initially to the Warring States period Yan commandery of Liaodong, which encompassed an area from modern Liaoning-Jilin border in the north to the Chongchon River on the Korean Peninsula in the south, and from just east of the Qian Mountains to a now-disappeared large wetland between the western banks of middle Liao River and the base of Yiwulü Mountain, historically known as the "Liao Mire" (遼澤, Liáo zé) roughly in between the modern Xinmin, Liaozhong, Tai'an, Panshan and Beizhen). The modern usage of "Liaodong", however, simply refers to the half of Liaoning province to the left/east bank of the Liao/Daliao River.

Xinghai Square (simplified Chinese: 星海广场; traditional Chinese: 星海廣場; pinyin: Xīnghǎi Guǎngchǎng), is a city square in Dalian, Liaoning, China. It is located to the north of Xinghai Bay. It covers a total area of 110 ha (270 acres), created entirely through land reclamation, making it the largest city square in the world. Its name literally means "the Sea of Stars".

The South Manchuria Railway (Japanese: 南満州鉄道, romanized: Minamimanshū Tetsudō; simplified Chinese: 南满洲铁道; traditional Chinese: 南滿洲鐵道; pinyin: Nánmǎnzhōu Tiědào), officially The South Manchuria Railway Company, Ltd. (南満州鉄道株式会社, kyujitai: 南滿洲鐵道株式會社, Minamimanshū Tetsudō Kabushikigaisha), Mantetsu (Japanese: 満鉄, romanized: Mantetsu) or Mantie (simplified Chinese: 满铁; traditional Chinese: 滿鐵; pinyin: Mǎntiě) for short, was a large National Policy Company [ja] of the Empire of Japan whose primary function was the operation of railways on the Dalian–Fengtian (Mukden)–Changchun (called Xinjing from 1931 to 1945) corridor in northeastern China, as well as on several branch lines.

In 1905, after Russia's defeat in the Russo-Japanese War, this area was taken over by Japan as the South Manchuria Railway Zone. Mantetsu was established in 1906 to operate the railways taken over from the Russians. Subsequently, Mantetsu expanded by building new lines for itself and for Chinese-owned undertakings, and after the establishment of the puppet state of Manchukuo in 1932, it was also entrusted with the management of the Manchukuo National Railway. Between 1917 and 1925, Mantetsu was also responsible for the management of the Chōsen Government Railway in Japanese-occupied Korea.