Dongsha Islands is one of the four archipelagos of Nanhai Zhudao and is located as an important transportation hub for international navigation.
Satellite image of the Dongsha Islands.
Location:South China Sea.
Coordinates:20°43′00″n 116°42′00″e
Area:1.74 square kilometers.
In July 1965, the USS Frank Knox destroyer of the U.S. Navy's Seventh Fleet departed from Zuoying Naval Base and ran aground in the Dongsha Islands while cruising in the South China Sea.
Dongsha Islands were placed under the jurisdiction of Huizhou Prefecture in Guangdong Province during the Kangxi period of the Qing Dynasty, and were occupied by the Japanese army during World War II and included in the New South Islands of Kaohsiung Prefecture, Taiwan, and were included in the Hainan Special Administrative Region of China after the war; In 1990, it was assigned to Zhongxingli, Qijin District, Kaohsiung City.
Before February 1, 2000, the 99th Division of the Marine Corps of Taiwan, China, was stationed there, and on January 17, 2007, Taiwan also established the "National Park" of Dongsha Atoll, the seventh "national park" in Taiwan, China, and on October 4 of that year, the "Marine National Park Management Office" was established (under the Construction Administration of the "Ministry of the Interior" of Taiwan, China). The "National Park" of Dongsha Atoll includes Dongsha Island and its atolls in the South China Sea, as well as the nearby waters of the atoll, which extends outward for 12 nautical miles, with a total area of 3,536With 6,795 square kilometers, it is currently the largest "national park" in Taiwan, China, with a land area of 174 hectares, and the remaining part is a sea area; The "National Park" management office is located in Kaohsiung Metropolitan Park, Nanzi District, Kaohsiung City, and has set up a research station of Dongsha Management Station on Dongsha Island. The park is mainly Dongsha Island and a circular atoll with a diameter of 25 kilometers including the former, which has a tropical monsoon climate and is 445 kilometers away from Kaohsiung City. For a long time, for the sake of ecological conservation and "national" safety, it was not open to the general public.
Dongsha Islands (1969).
Map including Dorr Islands (1955).
Dongsha Islands is located in the South China Sea, composed of three coral atolls, namely Dongsha Atoll, Nanweitan Atoll and Beiweitan Atoll, surrounded by the sea on all sides, Dongsha Island on the west side of the atoll, Dongsha Island is about 80 kilometers away from Nanwei and Beiwei Beach.
The main island, Dongsha Island, is northwest west to southeast east, the island shape is like horseshoe, tooth, ancient "crescent island" said; It is about 2,800 meters long from east to west, 865 meters wide, and has a land area of about 1It is 74 square kilometers and is surrounded by sea water to become an inland sea (lagoon) with an area of about 0It is 64 square kilometers and is formed by coral reefs. The entire island is surrounded by reefs of 10 to 15 nautical miles.
With an area of 5,000 square kilometers, the Dongsha Islands are one of the largest islands in the South China Sea. It is the northernmost border of Nanhai Zhudao, 240 nautical miles (444 km) from Kaohsiung Port in the northeast and 640 nautical miles (1,185 km) from Nansha Taiping Island in the south. It is 420 nautical miles (778 km) from Manila to the southeast, 360 nautical miles (667 km) from Hainan Island to the southwest, about 170 nautical miles (315 km) from Hong Kong to the northwest, and 140 nautical miles (259 km) from Shantou to the north.
Nanwei Beach and Beiwei Beach are a continuous shallow, the reef body is oval, submerged in water, and there are no islands and reefs exposed, which is a kind of submerged atoll.
Official name: Location: Elevation (m) Land area (hectares).
Dongsha Island 20°43 n 116°42 e 0+ 108
East Sand Reef 20°40 14 N 116°54 31 e 0+ 70
North Guard Beach 21°04 n 115°58 e -60
South Guard Beach 20°58 n 115°55 e -58
Pinnacle seamounts. Beacon seamounts.
Beibo Seamount. The topography of Dongsha Islands is complete, including reefs, lagoons, sandbanks, shoals, waterways and islands, and is a standard atoll terrain. Dongsha Atoll is a circular atoll with a diameter of about 25 km, formed by reef-building corals. The reef platforms around the atoll, which are mostly exposed or close to the surface at low tide, are about 46 km long and 2 km wide. The interior of the atoll is a water area with a depth of only 16 meters, and there are many coral mounds, small sandbanks and shallow reefs, while the water depth outside the atoll is 25 meters, which is a steep slope or cliff, and almost vertically descends to the deep sea. There is a natural gap in the northwest and southwest of the atoll, and Dongsha Island is located in the middle of this gap, forming the so-called south and north waterways, which are the main channels into the waters of the inner atoll. According to scholars' estimates, it would take at least a million years for such a large atoll to form.
The lagoon is shallow, rises and falls with the tides, with an average depth of about 1 metre, the water is mostly calm, the wind and waves are not prosperous, and it is very different from the large swells outside the atoll, and the tide sometimes has sediment silting inward, and in recent years it has become shallower. The depth of this lagoon is less than 1 metre at low tide, and the width of its outlet is only about 20 metres. The bottom of the lake is mostly covered by silt and organic debris, but the sediment is still composed of gravel where the water is urgent.
The water depth of Dongsha Atoll is 06-17 meters, but mostly less than 5 meters, the atoll is nearly circular, with a radius of about 10 kilometers, and the waters in the atoll are about 300 square kilometers.
Dongsha Island is located in the northern part of the tropics and has a tropical monsoon climate, which is affected by the northeast monsoon in winter and the southwest monsoon in summer. From April to November every year, typhoons occasionally strike, but the most are in the month, and the wind and waves are generally weak except for typhoons. Rainfall is more in summer and autumn and less in winter.
The surface water temperature in Dongsha sea area is about 21 30, 26 in spring, 30 in summer, 28 in autumn and 24 in winter, with an average annual temperature of 253 degrees, with a minimum average of 22 in December2 degrees; The highest temperature is June, with an average temperature of 295 degrees. The salinity of the sea water generally does not change much, at 33 parts per thousand throughout the year4 to 346, which is slightly lower in the typhoon season and slightly higher in winter.
The seaweed near Dongsha Island is a tropical seaweed that bears a high resemblance to the seaweed in the northern waters of the Philippines and a slight difference from the seaweed in southern Taiwan. Since most of the seaweed surveys are confined to the area around Dongsha Island, and the seaweed facies in the vast inner atoll, outer atoll and reef area are still poorly understood, it is estimated that the seaweed facies of Dongsha Islands may be much richer than currently known. There are currently 300 species of coral and 120 species of seaweed. In addition to corals, there are also invertebrates such as crustaceans, echinoderms, and molluscs, as well as fish. According to surveys, there are more than 500 species of coral reef fish, several of which are extremely rare.
Due to the good coral coverage, large invertebrates are often seen. The surface of the reef is very flat, with occasional large reef protrusions, most of which are composed of coral detrital and live coral colonies. There are tidal lands of various sizes on the surface, and there are many circadian clocks in the tide pools, including many species of macroalgae and seagrass. The small number of crustaceans is related to the massive bleaching and death of corals in the 1998 El Niño phenomenon, which caused large shrimp and crabs to be unable to inhabit coral branches and affected by overfishing.
In 2004, fishermen who went fishing in the waters near Dongsha Island were poisoned by eating the mollusc poisonous shellfish acorn snail (pufferfish poison), and six people were poisoned and sent to the hospital, two of whom died.
Compared with the sea, the species of flora and fauna on Dongsha Island are slightly rarer, and the plants are all tropical plants, and the main vegetation is vine-like climbing plants and dwarf shrubs: there are forest trees, mulberry trees, jatropha trees and wild pineapples, etc., with an average height of about five meters to form a natural shade. The animals are mainly snails, crabs, insects, and spiders, and most of them are rare species. There are about 140 species of birds, most of which are migratory birds, and in 1866, a large breeding population of white-bellied boobies was discovered, which has now disappeared, and the remaining guano was also mined in the Japanese occupation.
Vegetable cultivation is planted by the officers and soldiers on the island, and the types of vegetables are roughly divided into: cabbage (very small), cabbage, tomato, green beans, radish, etc., and in summer, melons are mainly cultivated, such as pumpkins and loofahs. Watermelon is occasionally grown, but others such as red beans, peppers, amaranth, water spinach, etc. are also cultivated.
The Shixing Stone Pond in Zheng He's nautical chart is the Dongsha Islands.
Map of the Dorr Islands drawn by the British in 1858.
From ancient times to the present, there have been many ships stranded and sunk in different periods in the Dongsha area, so it is reasonable to speculate that the underwater cultural assets in the Dongsha area should be very rich.
Dongsha Island is the earliest developed in the history of Nanhai Zhudao, and fishermen go to the Dongsha sea area to carry out fishing activities, which can be pushed back to Pei Yuan's "Guangzhou Chronicles" in the Jin Dynasty more than 1,000 years ago, "Coral Island is 500 miles south of (Dongguan, Guangdong) County. In the past, people fished in the sea to get coral." "Coral Island" refers to Dongsha Island and its atolls.
On the occasion of the Nanyue Kingdom (Nanyue Kingdom), the Wu King of Nanyue sought to grandiosely promote his culture and martial arts, and there were Jiaoluan, Jiuzhen, and Ninan Pioneering, and Vietnam claimed that Sisha was included in the territory of Nanyue (Nanyue Kingdom) at that time. According to Liang Sheng, a Qing Dynasty fisherman, in the 1860s (during the reign of Tongzhi in the Qing Dynasty), fishermen from Guangdong and Hainan had already visited the site in large numbers to fish, collect algae and catch sea turtles, and set up wooden factories on Dongsha Island to process fish and seaweed. However, because Dongsha Island is slightly smaller and located in a remote corner, it has always been an uninhabited island for a long time, and it is only used for boatmen to fish and rest.
Since the Ming Dynasty, Chinese have developed and operated the Dongsha Islands. In the 15th century, Zheng He's navigation chart in the Western era of Zheng He's navigation chart is the Dongsha Islands. From 1710 to 1712 (49 to 51 years of the Kangxi reign of the Qing Dynasty), the Qing court sent Wu Cheng, the deputy general of the Qing Dynasty, and in 1907 (the 33rd year of Guangxu), Li Zhun, the commander of the navy, to inspect and survey the Xisha and Dongsha islands respectively, and then they were officially incorporated into the Chinese territory and were under the jurisdiction of Jieshi Town, Lufeng County, Huizhou Prefecture, Guangdong Province.
In 1851, the British steamer Lena Fox ran aground here, and the British authorities in Hong Kong planned to build a lighthouse on the island. In 1858, the British sailboat Saracen published a map of the Dongsha Islands, marking the latitude and longitude and the location of the lighthouse. In 1878, the British hydrographer Alexander George Findlay published The Navigation Guide to the Indies, China, and Japan, which recorded:
Dongsha Island is located on the western edge of Dongsha Atoll, close to the atoll subsidence zone. It is made of sand, with no solid particles or dirt to be found, and is saddle-shaped, surrounded by a shallow bay, or lagoon, which goes about half a mile deep to its western end, providing shelter from the winds for Chinese fishermen who come here to fish earlier in the year. Dig a few feet in the sand to find water with a salty taste. There are plenty of gannets that can be knocked down with sticks. ”
In August 1907, the Japanese businessman Nishizawa Yoshiharu gathered people to occupy Dongsha, planted a flag and changed its name to "Nishizawa Island", and built wharves, railroad tracks and other buildings on the island, with the purpose of mining aquatic resources such as phosphate minerals, marine grass, fish shellfish and turtles, building more than 20 wooden houses, building a seawater desalination plant and a pool for storage and turtle breeding, and setting up ** lines and water suction pipelines and other equipment. The Qing court did not know about this matter, and the following year because the British wanted to build a lighthouse on the island and the ownership of the issue forced the Qing court to face up to the problem of Dongsha Island occupied by the Japanese, and in 1909 to the Japanese Consulate General in Guangzhou, and finally the Qing court put forward the book "Atlas of China's River and Sea Dangers" and other relevant classics, confirming that Dongsha is indeed Chinese territory, and the Qing court reimbursed the Japanese businessmen for the cost of developing Nishizawa with 160,000 silver dollars, deducted 30,000 yuan as compensation for the loss of fishermen, paid 130,000 yuan, and signed the terms of returning Dongsha Island, by the Qing ** After paying 160,000 silver dollars to the Japanese merchants, the Guangdong Navy personnel immediately landed on the island to drive away the fishermen on the island and officially took over Dongsha Island, and then sent personnel to receive it in October of the same year and officially recovered Dongsha Island. On November 19, Cai Kang, the governor of Guangdong Province, held a monument and flag-raising ceremony on Dongsha Island to reaffirm its sovereignty. In the same year, Li Zhun, the commander of the Guangdong Navy Division, once patrolled the sea here. After Qing ** took over Dongsha Island, it was stipulated that fishermen from all provinces who wanted to go to the island for activities must obtain a permit from Guangdong Province**.
At that time, all the historical buildings and inscriptions on the ground in Dongsha, the old "Dawang Temple", etc., were destroyed by the invading Japanese in the early 20th century, and then suffered heavy damage in the Second World War. The only existing relics of early Chinese ancestors are the "Dongsha Ruins" under the sand on the northeast side of the lagoon and several ancient Chinese-style wells. During World War II, it was occupied by Japan and a small airfield and a naval canning factory were built. The fallacy that has been widely circulated after the war is mostly said that in March 1939 (the 14th year of Showa in Japan), it was transferred to the jurisdiction of Kaohsiung City, Kaohsiung Prefecture, and that this should be the first time in history that Dongsha Islands, Xisha Islands, and Nansha Islands were included in the administrative system. However, according to Order No. 31 of the Taiwan Governor-General's Office and Taiwan Governor-General's Office Circular No. 122 of March 30, Showa 14 (1939), the scope of the New South Islands is defined as the area north of 7 degrees north latitude, south of 12 degrees north latitude, east of 111 degrees 30 minutes east longitude, and west of 117 degrees east longitude. In other words, the New South Islands were limited to a part of the present-day Nansha Islands, excluding the Dongsha and Xisha Islands, which were under Japanese military occupation and were not under the administrative jurisdiction of Kaohsiung City. But many of the post-war ** tend to confuse the two.
In 1945, after the end of World War II, the Chinese **national** first took over the jurisdiction of Nanhai Zhudao by the Office of the Chief Executive of Taiwan Province, and then placed it under the jurisdiction of Guangdong Province. In 1947, the Nationals** also explicitly announced that Nanhai Zhudao was the territory of China, published newspapers and periodicals to announce it to the world, and set up a monument as a memorial.
Hainan Special Administrative Region set up by China**.
At the beginning of 1949, it was placed under the jurisdiction of the Hainan Special Administrative Region. In December 1949, the Kuomintang retreated to Taiwan and continued to control Dongsha, and in July 1990, it was placed under the jurisdiction of Kaohsiung City along with the Nansha Islands. The People's Republic of China will still give it to Guangdong Province. At present, the Dongsha Islands are under the de facto control of Taiwan, China, and are managed by the Coast Guard.
The "Dongsha Ruins" excavated in 1995 by Professor Chen Zhongyu of the Institute of History and Philology of the ** Research Institute in Taiwan, China, are located on the north shore of the lagoon in Dongsha Island, which should have been able to moor small boats or sampans hundreds of years ago. Although no obvious remains of a HOS house have been found, the unearthed nails suggest that there may have been a temporary wooden structure. The site is at least 50 meters long and 20 meters wide, and it has obvious fire, fire charcoal, cinders, flint, animal bones, etc., and it is obviously a cooking activity, and it is by no means a temporary small camping site. From the excavation of a large number of ceramic pieces and the cultural layer of about 20 centimeters thick, it is inferred that the ancient ancestors occupied the residence for a short time. In addition, from the observation of the unearthed blue and white porcelain, it is inferred that it is about a relic from the middle of the Qing Dynasty; The investigation also found a batch of ancient coins at a depth of 2 meters outside the island, and they were found from the Tang Dynasty to the early Ming Dynasty, which is speculated to have been left behind by ancient ships after they ran aground, and the period should be during the Ming Dynasty.
On November 12, 1998, the Taiwan Amateur Radio Promotion Association carried out eight days and seven nights of communication activities on Dongsha Island, and for the first time tried to open the short-range VHF144MHz channel, and successfully completed the communication with the temporary radio station of the "ham clan" of Taiwan, which was set up 850 kilometers away from Datunshan and Linkou Changgung Hospital in Taipei City, and also set a record of completing the communication with ultra-low power below one watt.
In May 1999, the mayor of Kaohsiung City*** went to the fishermen's service station on the island to hang up the door sign "No. 31, Dongsha, 18 Zhongxingli, Qijin District" to declare sovereignty.
On July 28, 2005, the leader of Taiwan, China, visited Dongsha Island for the second time.
In 2007, the Dongsha Atoll "National Park" was established, and Dongsha Island was placed under the jurisdiction of the newly established Marine "National Park" Management Office. On February 10, 2008, ** went to Dongsha Island for inspection.
On January 8, 2013, Dongsha Island established a Chunghwa Post agency.
In January 2019, Taiwan's Ministry of the Interior announced that it would open its doors for tourism in that year, but this policy was not implemented due to experts' suggestions that ecological measures needed to be strengthened.
South China Sea Barrier Monument.
In ancient times, Dongsha Island was a safe haven for ships in the South China Sea, but in modern times, it has become a strategic point because of its location, and it has been stationed by troops for a long time, so it has a battlefield color. Dongsha Island also has cultural monuments, and part of the man-made landscape.
Dongsha Dawang Temple: the old "Dongsha Dawang Temple", I don't know what god to worship, destroyed in the war at the beginning of the 20th century, in the winter of 1948, the statue of Guan Gong, drifting with the canoe, the statue of the god does not stick to the water, the officers and soldiers of the Marine Corps stationed in that year then built a temple to worship, still called "Dawang Temple", also known as the Guandi Temple, regarded as the patron saint of Dongsha. The canoe from that time is still preserved on the side of the temple. The couplet of the temple pillar: "A piece of loyalty runs through the sun and the moon, full of righteousness and thin clouds." ”；The red face and the red heart ride the red rabbit to chase the wind and gallop without forgetting the red emperor, the green lantern view of the green history, the green dragon and the moon are hidden in the blue sky. The temple also enshrines the "goddess of the South China Sea" Mazu (Yuan Dynasty seal), and the Taiwan Coast Guard stationed today in addition to offering incense, also hangs a gold medal in front of the statue.
Dongsha site: In 1995, the professor of the "* Research Institute" excavated the Dongsha site, which is located on the north shore of the lagoon on the island. It is speculated from the unearthed cultural relics that the occupation time of the ancient ancestors was not short.
South China Sea Barrier Monument: On the south side of Dongsha Island, it was built by the Ministry of the Interior in 1989 to introduce the strategic location of Dongsha Island and briefly describe the topography and climate of Dongsha Island.
Han Xinjiang Tang Soil Monument: Built in 1992 by the Ministry of the Interior of Taiwan, China, it is located around the South China Sea barrier monument to strengthen the maintenance of the territory and show sovereignty. In view of the strong wind on Dongsha Island, in order to prevent weathering and fragmentation, the warranty was strengthened, and a ring monument was built with a range of 11 meters and a height of 2A 5-meter glazed tile concave cloister.
Dongsha Island Monument: The Dongsha Island Monument was built in January 1954 by Du Zhen, director of the Dongsha Island Management Office of the Taiwan Navy, China, to describe the historical evolution of Dongsha Island.
Dongsha Spiritual Fortress: It was built during the Japanese occupation period, and it is easy to see everywhere on the island, which has the effect of exerting spirit and inspiring the morale of the army. There is a statue of Jiang Zhongzheng in front of the fortress, and the stone engraved around the pedestal is not only the inscription, but also the inscriptions such as "the father of the National Revolutionary Army" and "taking the rise and fall of the country as his own responsibility, and putting personal life and death out of the degree".
Dongsha Cadastral Survey Monument: Located in front of the headquarters, it was built in 1991, and Kaohsiung Mayor Wu Dunyi inscribed, indicating that Dongsha Island is managed by Kaohsiung City and belongs to Qijin District.
Dongsha Library: In 2005, the collection exceeded 20,000 volumes.
Evergreen Pavilion: The most green place on the island. There is a couplet on the pavilion: "Shapo cloud trees are like thousands of trees, singing the immortal years of southern Xinjiang." ”
*Dongsha Cemetery: The cemetery of the Taiwanese army of China.
Water source
The groundwater on the island is abundant, and the groundwater level is high, about 20 to 2Water can be obtained from 5 meters, but the water is slightly salty and not suitable for drinking. The area near the centre of the island is less salty, and the island's water source is available for irrigation and washing. At present, drinking water depends on Tianyu reservoirs (more than 10 large and small storage tanks) and reservoirs, and now with seawater desalination, it can produce 7,500 gallons a day, mainly for washing, and drinking water still has to rely on Taiwan (mostly from the Kaohsiung area) to replenish the supply.
There are Keqiang and Congliang power plants, which can provide all-weather power on the island**. The main power equipment on the island is connected by three sets of 500kw oil-fired generators installed at the end of 2005, and the important equipment on the island is equipped with two sets of generators (one is standby). At present, there are about 220 people on the island on average every day, and the electricity consumption is only 180 190kw, so it should still be enough in terms of the construction of a new wharf in the future and the opening of the island for research and tourism in the later stage. On March 17, 2016, the solar photovoltaic system was put into operation, with a total area of 310The 6-square-metre plant has a total capacity of 40 kWp, and is expected to generate 58,000 kWh of electricity per year, reducing fuel consumption by 15,000 litres and reducing fuel emissions by 400,000 tonnes of CO2.
Architecture
It has an airport, a dinghy wharf, a meteorological observation station, Dongguang Hospital, Dongsha Library, a fishermen's service station, a satellite tracking station, Dongsha Dawang Temple, and the "national" Dongsha International Oceanographic Research Station of Sun Yat-sen University. There is also a marine "national park" management office (Dongsha management station), located at No. 52, Dongsha, Qijin District, Kaohsiung City, and has an AED on the first floor.
Population
At present, there are 225 officers and men of the Coast Guard under the Dongnansha Branch of the "Coast Guard" of the Oceanic Commission, officers and men of the Dongsha Branch of the Fifth Coast Guard of the Fleet Branch, and many officers and men of the Chinese Navy and Air Force have also been dispatched to the airport and stayed at the airport. The Marine "National Park" Management Office has set up a local Dongsha management station, and in recent years, scholars have often been stationed to restore the ecology.
Highways
The main roads on Dongsha Island are asphalt, while the rest of the roads are made of fine sand, and the road conditions are poor. Generally, the main mode of transportation is bicycles, and it takes about 30 minutes to get around the island. At present, there are 1 10-ton semi-large truck, 3 small trucks (mainly carrying supply goods, water, garbage and water fertilizer), 3 vans, 1 15-ton crane and 2 forklifts, and Kaohsiung City** donated a bus to operate the only bus "Dongsha No. 1" on the island.
By air
There is a small airport on Dongsha Island, namely Dongsha Airport, with a runway that is 30 meters wide and 1,550 meters long, and the runway thickness is about 023 meters. When the lagoon on the island is flooded during high tides or heavy rains, flooding often occurs near the airport apron. In addition, the runway concrete is affected by salt damage, and the deterioration of the surface layer is serious. At present, there are mainly military aircraft and civil aircraft to and from Taiwan and Dongsha Island, among which the military aircraft are C-130 transport aircraft of the Taiwan Air Force of China, which is used for material supply and official purposes, and travels on Tuesday of the second week of each month, with a passenger capacity of 70 people and a load of 8,000 kilograms; The aircraft is a UNI Air passenger aircraft with a capacity of 70 passengers and 1,696 kilograms of cargo, which is available to and from Kaohsiung International Airport on the main island of Taiwan every Thursday for the arrival of garrison personnel.
As the coast of Dongsha Island is a shallow reef terrain with a depth of about 1 to 2 meters, large ships cannot approach, so they must dock in the open sea and then be connected to the shore by small boats. There is a wharf for the patrol boats of the "Coast Guard" on the island, which can dock three 20-ton coastal patrol boats of the "Coast Guard", but at present, the "Coast Guard" has only established three 10-ton coastal patrol boats and three M8 speedboats, and the patrol capability is obviously insufficient, and it has been planned that there will be nine ships of various types cruising in the Dongsha waters in the future.
At present, there are military supply ships that make one voyage every month every year, patrol speedboats that mainly carry **, ammunition, gasoline, and assist in maritime investigations, and civilian merchant ships that carry civilian materials on 30-day voyages.
The zip code for Dongsha Island, Taiwan, China: 817.
Taiwan Army Post Office: "67 Bureau". There is a Chunghwa Post agency.
Through satellite communications, there are public utilities on the island**.
In terms of mobile** communications, Chunghwa Telecom's 4G and 3G base stations can be used.
In terms of network, Chunghwa Telecom has completed the network system of Dongsha Island, so that it can use the Internet and mobile communications to access the Internet on the island.