The hectare ( / ˈ h ɛ k t ɛər , - t ɑːr / ; SI symbol: ha ) is a non-SI metric unit of area equal to a square with 100- metre sides (1 hm ), that is, 10,000 square metres (10,000 m ), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectares and one hectare contains about 2.47 acres.
47-635: Kent Ridge Park is a 47- hectare public park located in Kent Ridge , Singapore , between the National University of Singapore and the Singapore Science Park . Due to its undisturbed habitat and abundant plant life, it is a popular venue for bird-watchers and eco-tourists . During the Second World War , a hill in the park was the site of one of the last and fiercest battles fought by
94-661: A dash ; for example, 1-21-00.26 ha would mean 1 hectare, 21 ares, and 0.26 centiares (12,100.26 m ). The metric system of measurement was first given a legal basis in 1795 by the French Revolutionary government. The law of 18 Germinal, Year III (7 April 1795) defined five units of measure: In 1960, when the metric system was updated as the International System of Units (SI), the are did not receive international recognition. The International Committee for Weights and Measures ( CIPM ) makes no mention of
141-404: A double prefix is non-standard. The decimilliare is (100 mm) or roughly a four-inch-by-four-inch square. The centiare is one square metre. The deciare (rarely used) is ten square metres. The are ( / ɑːr / or / ɛər / ) is a unit of area, equal to 100 square metres ( 10 m × 10 m ), used for measuring land area. It was defined by older forms of the metric system , but
188-562: A considerable force of artillery, attacked the ridge during the morning. One of the units defending the line was B Company of the Malay Regiment. Under heavy fire from the Japanese, who had artillery and tank support, B Company was forced to retreat to the rear. However, before the retreat could be completed, the Japanese succeeded in breaking through B Company's position. In the battle, the troops fought hand-to-hand combat using bayonets against
235-439: A few other units including the are (and implicitly the hectare ) whose use was limited to the measurement of land. The names centiare , deciare , decare and hectare are derived by adding the standard metric prefixes to the original base unit of area, the are . The decimilliare (dma, sometimes seen in cadastre area evaluation of real estate plots) is 1 ⁄ 10,000 are or one square decimetre. Such usage of
282-542: A measure of land area. The names of the older land measures of similar size are usually used, redefined as exactly one decare: The most commonly used units are in bold . One hectare is also equivalent to: The Unicode character U+33CA ㏊ SQUARE HA , in the CJK Compatibility block, is intended for compatibility with pre-existing East Asian character codes. It is not intended for use in alphabetic contexts. U+3336 ㌶ SQUARE HEKUTAARU
329-462: A new defence position sited at Bukit Chandu. Bukit Chandu (meaning "Opium Hill" in Malay) was so named after an opium-processing factory located at the foot of the hill. This was also where C Company of the Malay Regiment made their final stand against the imminent Japanese attack. Bukit Chandu was a key strategic defence position for two important reasons. Firstly, it was situated on high ground overlooking
376-510: A public parking lot. There are three life-size statues and a plaque outside the museum, honoring the Malay Regiment and commemorating the lives of those who died. Kent Ridge Park, Labrador Park , and the war museum, are part of the Pasir Panjang Historic District, which focuses on World War II battlefield events in western Singapore. Together with Fort Siloso at Sentosa and The Battle Box at Fort Canning , they serve as
423-548: A reminder of an important chapter in Singapore's modern history. Near to the top of the ridge, there is a commemorative heritage site marker which shows the area where the Battle of Pasir Panjang of 1942 was fought. The park also has some decommissioned Singapore Army military equipment, consisting of two WWII-vintage US M114 155mm field howitzers and a French AMX-13 light tank on permanent outdoor display until December 2015, donated by
470-534: A significant part of the total strength of 36,000 Japanese troops deployed in the invasion of Singapore. The 1st Malaya Infantry Brigade , comprising the British 2nd Loyal Regiment under the command of Lieutenant-Colonel Mordaunt Elrington, together with the 1st Malaya Regiment commanded by Lieutenant Colonel J. R. G. Andre, consisted of less than three sections of the Mortar Platoon, Anti-Aircraft Platoon along with
517-658: A unit of SI, is the only named unit of area that is accepted for use with SI units . The name was coined in French, from the Latin ārea . In practice the hectare is fully derived from the SI, being equivalent to a square hectometre. It is widely used throughout the world for the measurement of large areas of land, and it is the legal unit of measure in domains concerned with land ownership, planning, and management , including law ( land deeds ), agriculture, forestry , and town planning throughout
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#1732872661058564-441: Is a combination of ヘクタール ( hekutāru ), the Japanese translation of "hectare". Battle of Pasir Panjang Japanese victory [REDACTED] United Kingdom 1941 1942 Second Sino-Japanese War Taishō period Shōwa period Asia-Pacific Mediterranean and Middle East Other campaigns Coups The Battle of Pasir Panjang , which took place between 13 and 15 February 1942,
611-521: Is a panoramic view of the coast of Pasir Panjang and some of the Southern Islands , approximately 5 km off the south-western coast of Singapore. Islands such as Pulau Bukom and Pulau Semakau are visible on a clear day. Kent Ridge park, Telok Blangah Hill Park , and Mount Faber Park are part of the Southern Ridges trail that links all 3 parks via connecting bridges and paths. The park
658-582: Is managed by the National Parks Board, and is open daily to the public. Admission is free except for entrance to the war museum. The park is accessible via entrances on Vigilante Drive and Pepys Road, off Pasir Panjang Road . Most of the remaining wild part of the park comprises secondary forest with plants native to Singapore and Peninsular Malaysia such as tembusu , angsana , white leaf fig , common pulai , Singapore rhododendron , pitcher plants , cicada tree and simpoh air . The trails through
705-451: Is now outside the modern International System of Units (SI). It is still commonly used in speech to measure real estate, in particular in Indonesia, India, and in various European countries. In Russian and some other languages of the former Soviet Union , the are is called sotka (Russian: сотка : 'a hundred', i.e. 100 m or 1 ⁄ 100 hectare). It is used to describe
752-471: The Bren Gun Carrier Platoon under Captain R. R. C. Carter, all of which were held in reserve. These units were tasked with defending the approach to Pasir Panjang Ridge, also known as "The Gap". The 44th Indian Brigade were positioned on their right flank. A Malay platoon, consisting of 42 soldiers and their officers, commanded by Second Lieutenant Adnan Saidi , was holding a critical part of
799-569: The British Indian Army battalions at the Farrer Park concentration area. It remains unclear as to how many casualties the Japanese suffered. The battle of Pasir Panjang had little strategic significance. From a purely military operational perspective, the Battle of Pasir Panjang could not change the outcome of the fate of Singapore and it was a matter of time before the British would surrender to
846-599: The Duke of Kent , on 3 October 1952. The plaque was erected at the junction of what is now Kent Ridge Road and South Buona Vista Road. The park contains Bukit Chandu , alternatively known as Opium Hill (in Malay ), after the opium processing factory owned by the British East India Company that was at the foot of the hill until 1910. During 12–14 February 1942, it was the site of the Battle of Bukit Chandu , fought by
893-1130: The European Union , New Zealand and Australia (since 1970). However, the United Kingdom, the United States, Myanmar (Burma), and to some extent Canada, use the acre instead of the hectare for measuring surface or land area. Some countries that underwent a general conversion from traditional measurements to metric measurements (e.g. Canada) required a resurvey when units of measure in legal descriptions relating to land were converted to metric units. Others, such as South Africa, published conversion factors which were to be used particularly "when preparing consolidation diagrams by compilation". In many countries, metrification redefined or clarified existing measures in terms of metric units. The following legacy units of area have been redefined as being equal to one hectare: In Mexico, land area measurements are commonly given as combinations of hectares, ares, and centiares. These are commonly written separated by
940-557: The Malay Regiment against the invading Japanese army, the Battle of Bukit Chandu (also known as the Battle of Pasir Panjang ), 12–14 February 1942. The park was officially opened in 1954, and was gazetted by the National Heritage Board as one of 11 World War II sites in Singapore in 1995. It is one of over 300 parks managed by Singapore's National Parks Board, NParks. The area occupied by Kent Ridge Park and
987-547: The Ministry of Defence as part of its adoption of Kent Ridge Park as The Army Green Park in support of the National Parks Board "Adopt-a-Park" scheme to inculcate a greater ownership among the public of local parks and greenery. The park's facilities include fitness corners, look-out points, a nature trail, a multi-purpose court and a canopy walk. The highest point of the park is 61 metres above sea level , from where there
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#17328726610581034-404: The National University of Singapore was formerly known as Pasir Panjang Ridge, and was originally a lowland evergreen rainforest . The park's natural vegetation now consists of groves of Tembusu , Acacias and Dillenias . When the first settlers arrived in Singapore in the early 19th century, they grew crops such as rubber, pepper, gambier and pineapple on the ridge. During World War II , it
1081-546: The Nature Society Singapore and the Raffles Museum of Biodiversity Research , for students and the general public. 1°17′1.53″N 103°47′25.98″E / 1.2837583°N 103.7905500°E / 1.2837583; 103.7905500 Hectare In 1795, when the metric system was introduced, the are was defined as 100 square metres , or one square decametre , and the hectare (" hecto- " + "are")
1128-573: The are in the 2019 edition of the SI brochure, but classifies the hectare as a "Non-SI unit accepted for use with the International System of Units". In 1972, the European Economic Community (EEC) passed directive 71/354/EEC, which catalogued the units of measure that might be used within the Community. The units that were catalogued replicated the recommendations of the CGPM, supplemented by
1175-688: The flora and fauna in the park. At the half-way point, there is a shelter for visitors to take a short break or to enjoy a scenic view of Normanton Park and the National Parks Board's plant nursery . It is one of four popular birdwatching sites on mainland Singapore along with Pasir Ris Park , Fort Canning Park and Sungei Buloh Wetland Reserve . Birds found in the park include: white-crested laughing thrush , collared kingfisher , white-bellied sea eagle , banded woodpecker , pink-necked pigeon , blue-tailed bee-eater , white-breasted waterhen , and spotted dove . Eco-tours and heritage tours are regularly organised by various special interest groups such as
1222-470: The 42 survivors of the Malay Regiment led by Lieutenant Adnan Bin Saidi against the 13,000 men of Lieutenant-General Mutaguchi Renya 's 18th Division. The Malay Regiment's position on the hill was overrun by the Japanese and the battle ended in hand-to-hand combat after the last few defenders ran out of ammunition. All the officers except one, Lieutenant Abbas Abdul-Manan, and most of the men, were massacred in
1269-511: The Alexandra area, indirectly contributing to the Alexandra Hospital massacre . Adnan Saidi is described by many Singaporeans and Malaysians today as a hero for his actions on Bukit Chandu – he encouraged his men not to surrender and instead fight to the death. In Singaporean and Malaysian school textbooks, he is also credited as the soldier who noticed the error in the marching style of
1316-597: The British Indian Army . C Company saw through this trick as they knew that soldiers of the British Army typically marched in a line of three columns while the supposed Punjabi soldiers in front of their lines were moving in a line of four columns. When they reached the Malay Regiment's defensive line, C Company's troops opened fire, killing 22 disguised Japanese soldiers and wounding many others. Those who survived escaped downhill back to friendly lines. Two hours later,
1363-434: The British defences at Bukit Chandu . Adnan and his men would take the brunt of the Japanese assault shortly after. The first battle between the Malay Regiment and Japanese soldiers occurred on 13 February at around 1400 hours. The Japanese 18th Division started to attack the southwestern coast along Pasir Panjang Ridge and astride Ayer Rajah Road . The Japanese 56th Infantry Regiment under Colonel Yoshio Nasu, supported by
1410-473: The Japanese 25th Army. The Allied units stationed there were simply tasked with defending the approach to the ridge, but instead had to resist the main invasion force. Bukit Chandu itself is situated on high ground overlooking the island to the north, and it controlled the direct passage to the Alexandra area where the British army had its main ammunition and supply depots, military hospital and other key installations. The fall of Bukit Chandu allowed Japan access to
1457-400: The Japanese continuously kicked, punched and beat him before tying him to a tree and stabbing him to death with their bayonets (some sources claim that Adnan was brutally beaten up before being thrown into a tied-up gunny sack , which was then stabbed repeatedly by his Japanese captors, while others indicate that they stabbed him to death before hanging him upside down from a tree). During
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1504-578: The Japanese forces launched an all-out banzai charge in great numbers in an attempt to wipe out the Malay troops ahead through sheer numbers and overarching strength. The attack, conducted again with artillery shelling and tank support, overwhelmed the Malay Regiment and the defence line eventually broke. Despite being greatly outnumbered and short of ammunition (with only a few grenades at hand and not many rounds for their machine guns and rifles left) and much-needed combat supplies (including medication and bandages),
1551-612: The Japanese soldiers disguised as Indian troops. Fighting continued after his death and the subsequent British signing of surrender of Singapore to the Empire of Japan at 1810 hours on 15 February 1942 in the area around Alexandra Hospital , Tanjong Pagar and Pulau Belakang Mati ( Sentosa ) where some of the Malay Regiments regrouped. The Malay Regiment showed what esprit de corps and discipline can achieve. Garrisons of posts held their ground and many of them were wiped out almost to
1598-503: The Japanese. A few from B Company managed to save themselves while others were captured as prisoners-of-war. This penetration led to the withdrawal after dark, of both the 44th Indian and 1st Malay Brigade, to the general line at Mount Echo (junction of Ayer Rajah and Depot Road, around present-day Buona Vista ). On 14 February, the eve of Chinese New Year , the Japanese again launched a large-scale attack at 0830 hours with heavy support by intense mortar bombardment and artillery gunfire, on
1645-425: The Malay Regiment continued to resist the Japanese. Both sides engaged in fierce hand-to-hand combat as well as using bayonets. Adnan was seriously wounded but refused to retreat or surrender and instead encouraged his men to fight to the end. Soon after, with the whole area of Pasir Panjang falling under Japanese control, Adnan, who was badly wounded and unable to fight, was captured. Instead of taking him prisoner,
1692-399: The aftermath. Formerly used to house senior British Army officers, the last remaining black and white colonial bungalow at 31K Bukit Chandu has been restored and converted into a World War II war museum called Reflections at Bukit Chandu, commemorating the war and those who fought in it. Originally there were two smaller bungalows below 31K, but they were demolished in 1987 to make way for
1739-402: The battlefront held by the 1st Malay Brigade. The defenders managed to beat this off and a number of other attacks, despite suffering considerable casualties. The fighting also included bitter hand-to-hand combat and losses on the Japanese side were as heavy as their Malay foes. At 1600 hours, another attack, this time also supported by tanks, eventually succeeded in penetrating the left flank and
1786-444: The defenders on this side were forced back to a line running from the junction of Ayer Rajah Road to Depot Road through to Alexandra Brickworks and along the canal leading to Bukit Chermin further southeast. Owing to the failure of units on both of its flanks to hold their ground, the 1st Malay Brigade had to withdraw at 1430 hours the following day. It was at this point that C Company of the Malay Regiment received instructions to move to
1833-491: The entire Malayan Campaign , but mostly from 13 to 15 February 1942 in Singapore, the Malay Regiment suffered a total of 159 killed. Six of them were British officers, seven Malay officers, 146 other ranks and a large but unspecified number wounded. About 600 surviving Malay Regiment soldiers reassembled in the Keppel Golf Link area. Here, they were separated from their British officers. They later joined prisoners-of-war from
1880-467: The island to the northwest and secondly, if the Japanese gained control of the ridge, it gave them direct passage to the Alexandra area just behind. The British military in Singapore had its main ammunition bases and supply depots, one of their military hospitals ( Alexandra Hospital ) and other key installations (such as the Normanton Oil Depot) located right next to Alexandra. C Company's position
1927-451: The last desperate defensive battle at Pasir Panjang. The Japanese military pressed on their attack on Bukit Chandu in the afternoon, but this time they did so under the guise of a deception attempt. They sent a group of their soldiers, dressed in captured British Indian troops' uniforms (with their faces and skin smeared with dirt and soot and the wearing of turbans to pass off as Punjabis ), to present themselves as allied Indian soldiers in
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1974-519: The park, including one for mountain biking, run almost parallel along the ridge. There is a natural pond with fishes and turtles in the north-west of the park. A 280-metre long canopy walk was completed in the eastern part of the park in October 2003, linking Kent Ridge Park to the war museum, Reflections at Bukit Chandu, enhancing the park's and museum's accessibility to the public. Along the walk, there are information boards providing educational information on
2021-580: The size of suburban dacha or allotment garden plots or small city parks where the hectare would be too large. Many Russian dachas are 6 ares in size (in Russian, шесть соток ). The decare or dekare ( / ˈ d ɛ k ɑːr , - ɛər / ) is derived from deca and are , and is equal to 10 ares or 1000 square metres. It is used in Norway and in the former Ottoman areas of the Middle East and Bulgaria as
2068-512: Was part of the final stage of the Empire of Japan 's invasion of Singapore during World War II . The battle was initiated upon the advancement of elite Imperial Japanese Army forces towards Pasir Panjang Ridge on 13 February. 13,000 Japanese troops had made an amphibious landing in northwestern Singapore near Sarimbun (see Battle of Sarimbun Beach ) and had started to advance south towards Pasir Panjang. They had already captured Tengah Airfield en route. The 13,000 soldiers constituted
2115-436: Was separated from D Company by a big canal. Oil was burning in the canal, which flowed from the bombed-out and severely-destroyed Normanton Oil Depot. The burning oil in the canal prevented C Company's soldiers from retreating further. The company was under the command of Second Lieutenant Adnan Bin Saidi. He encouraged his men to defend Bukit Chandu to the last soldier, and was killed together with many of his fellow soldiers in
2162-654: Was thus 100 ares or 1 ⁄ 100 km (10,000 square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units ( SI ), the are was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa (1,000 m ) and are (100 m ) are not officially "accepted for use", they are still used in some contexts. The hectare ( / ˈ h ɛ k t ɛər , - t ɑː r / ), although not
2209-632: Was used as a fortress by the British in the defence of Singapore. Many of these plantations were either abandoned or destroyed during the Japanese Occupation (1942–1945), which allowed such crops to grow wild. On 23 February 1954, the Governor of Singapore, Sir John Fearns Nicoll unveiled a plaque which declared the area had been renamed Kent Ridge to commemorate the visit by the Duchess of Kent and her son,
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