A tulou is usually a large, enclosed and fortified earth building, rectangular or circular in configuration, with very thick load-bearing rammed earth walls between three and five storeys high and housing up to 80 families. Smaller interior buildings are often enclosed by these huge peripheral walls which can contain halls, storehouses, wells and living areas, the whole structure resembling a small fortified city.
The fortified outer structures are formed by compacting earth, mixed with stone, bamboo, wood and other readily-available materials, to form walls up to 6 feet (1.8 m) thick. Branches, strips of wood and bamboo chips are often laid in the wall as additional reinforcement. The end result is a well-lit, well-ventilated, windproof and earthquake-proof building that is warm in winter and cool in summer. Tulous usually have only one main gate, guarded by 4–5-inch-thick (100–130 mm) wooden doors reinforced with an outer shell of iron plate. The top level of these earth buildings has gun holes for defensive purposes.
A total of 46 Fujian Tulou sites, including Chuxi tulou cluster, Tianluokeng tulou cluster, Hekeng tulou cluster, Gaobei tulou cluster, Dadi tulou cluster, Hongkeng tulou cluster, Yangxian lou, Huiyuan lou, Zhengfu lou and Hegui lou, have been inscribed in 2008 by UNESCO as World Heritage Site, as "exceptional examples of a building tradition and function exemplifying a particular type of communal living and defensive organization harmonious relationship with their environment".
Terminology
Since the 1980s, the Fujian Tulou has been variously called "Hakka tulou", "earth dwelling", "round stronghouse" or simply "tulou". Tu lou (土樓) literally translates as earthen structures. Whereas Fujian Tulous's literal translation is "Fujian earthen structures", and scholars of Chinese architecture have recently standardized the term Fujian Tulou, it would be incorrect to assume that all tulou-dwellers were Hakka people; large numbers of southern Fujian
Parts of Hakka tulou belong to the Fujian Tulou category. While all south Fujian
The Fujian Tulou is defined as: "A large multi storey building in southeast Fujian
Chuxi Tulou cluster
Chuxi Tulou cluster 初溪土樓群, located as Yongding County Xiayang township Chuxi village. Inscribed as UNESCO World Heritage site 1113-001.
Jiqinglou, the largest rotunda tulou also the oldest in this cluster, built in 1419 during the reign of Emperor Yongle Ming dynasty. It consists two concentric rings, the outer ring building is four storeys tall, with 53 rooms on each level. The outer ring has 72 staircases. The second ring is a one-storey building.
Zhencheng lou
Zhenchenglou 振成樓, nicknamed "the prince of tulou", belongs to Hongkeng Tulou cluster. It is located in Hongkeng village, Hukeng township of Yongding
Western influence is evident in the Greek style columns of the ancestral hall, and in the wrought iron railing of the second level corridor.
Chengqi lou
Chengqilou 承啟樓 nicknamed "the king of tulou", of Gaobei Tulou cluster 高北土樓群 at Gaotou village of Yongding County was built in 1709. Inscribed as UNESCO World Heritage Site 1113-003 in 2008. It is massive rotunda tulou with four concentric rings surrounding an ancestral hall at the center, the outer ring is 62.6 metres in diameter and four storeys tall, 288 rooms, with 72 rooms on each level, circular corridor on 2nd to 4th floor, with four sets of staircases at cardinal points connecting ground to top floors. A big roof extending out ward covers the main ring. The ground floor rooms are kitchens for family branches, the second level rooms are grain storage rooms, and the 3rd and 4th floor rooms are living quarters and bedrooms. The second ring of 80 rooms is two storeys high, with 40 rooms on each level, the third ring served as community library, one storey with 32 rooms; there are 370 rooms in all. The 4th ring is a circular covered corridor surrounding the ancestral hall. If a person stayed for one night in each room, it would take him more than a year to go through all the rooms. The ancestral hall is at the centre. Chengqilou has two main gates and two side gates. 15th generation Jiang clan with 57 families and 300 people live here. At its heyday, there were more than 80 family branches lived in Chengqilou.
Other buildings in this cluster include: a three ring Shenyuanlou, outer ring 70m diameter; a Wujiaolou (pentagon) with irregular pentagonal floor plan and a rectangular tulou, the Shi-Ze lou.
Tianluokeng Tulou cluster
Tianluokeng Tulou cluster 田螺坑土楼群is tulou quintet cluster located at Fujian province, Zhangzhou City , Nanjing County , Shuyang Township , Tian Luo Keng Village (literally "Snail Pit" Village) in southern China , about four hours drive by motor coach or taxi from Xiamen
The square Buyunlou (Reaching the Cloud building) at the center of the quincunx. It was the first tulou at this site, built in 1796. It is three storeys high, each storey has 26 rooms, four sets of stairs, and a go around corridor in front of the rooms at each level. The Buyun building was burnt down by bandits in 1936, rebuilt in 1953 according to the original plan.
The Hechang building, a three-storey-high round earth building,
Zhenchang building, three storeys, round shape, 26 rooms per storey, built in 1930
Ruiyun building, built in 1936, three storeys, 26 rooms per floor.
The oval shape Wenchang building of 1966, three storeys, 32 rooms per floor.
Yuchang lou
Yuchanglou 裕昌樓 is a five-storey tulou located at Nangjing county Shuyang district Xiabanliao village. It was built in 1308 Yuan dynasty by the Liu family clan. It is one of the oldest and tallest tulou in China
Each of the 25 kitchens on the ground floor at the back half of the circle has a private water well beside its stove. This is the only tulou in all Fujian
There was a one storey inner-ring house surrounding the ancestral hall as late as 2003. This part of the building stood nearly 700 years intact until, unfortunately, it was dismantled after 2003
Eryilou
Eryilou 二宜樓 of Dadi Tulou cluster is located at Zhangzhou City Hua-an County Xiandu township Dadi Village
Architecture
Chinese dwelling tradition of "closed outside, open inside" concept: an enclosure wall with living quarters around the peripheral and a common courtyard at the centre. A small building at the center with open front served as an ancestral hall for ancestry worshipping, festivals, meetings, weddings, funerals and other ceremonial functions. Ground floor plan includes circle, semicircle, oval, square, rectangle, and irregular pentagon.
The foundation of tulou building was built with paved stones on top of compacted earth ground, in two to three tiers. There is a circular drain around the top tier foundation to prevent rainwater from damaging the tulou wall.
In most cases, the weight bearing outer wall of tulou consists of two sections, the lower section is built from cut stone blocks or river cobbles held together with a lime, sand and clay mixture to a height of about one or two metres, depend upon the regional flood water level. The compacted earth wall stacked on top of the stone section. The construction of earth wall from compacted earth mixed with sticky rice and reinforced with horizontal bamboo sticks was described first in Song dynasty building standard the Yingzao Fashi.
The walls were built inclined toward the centre, such that the natural force of gravity pushes the wall together. This inward inclination method was also used in the construction of Pagoda of Fogong Temple. The thickness of the Tulou wall decreases with height as specified in Yingzao Fashi. The bottom two storeys of tulou are solid with no window nor gun hole, windows are open only from the third to fifth storeys, because rooms at the bottom storey served as family storage rooms and the upper storeys were living quarters.
The rooftops were covered with baked clay tiles, arranged radially;λ insertion technique was used at regular intervals to compensate for larger circumference at the outside.( Majority of roof tiles were laid from top to bottom, the gap caused by radial layout was compensated by small sections of tiles laid in λ shape inserts). This technique allowed the tiles to be laid radially without visible gaps, and without the use of small tiles at top, larger tiles at bottom.
The eaves usually extend about two metres, protecting the earth wall from damage by rainwater pouring from the eaves.
The wooden frame supporting the rooftop had no dougong elements common in traditional Chinese building.
Circular corridors from 2nd to uppermost level were made of wood boards laid on horizontal wooden beams with one end inserted into the earth wall. The corridors are protected with a circle of wooden railings.
Stairwells are distributed evenly around the corridors, four sets of stairwells being the usual number. Each stairwell leads from ground floor to the highest floor.
Public water wells in groups of two or three are usually located at the centre court; more luxurious tulou has in-house water well for each household in ground floor kitchen.
Housing for a community of equals
Unlike other housing types around the world with architecture reflecting social hierarchy, Fujian Tulou exhibits its unique characteristic as a model of community housing for equals. All rooms were built the same size with the same grade of material, same exterior decoration, same style of windows and doors, and there was no "penthouse" for "higher echelons"; a small family owned a vertical set from ground floor to "penthouse" floor, while a larger family would own two or three vertical sets.
Tulous were usually occupied by one large family clan of several generations; some larger tulou had more than one family clan. Besides the building itself, many facilities such as water wells, ceremonial hall, bathrooms, wash rooms, and weaponry were shared property. Even the surrounding land and farmland, fruit trees etc. were shared. The residents of tulou farmed communally. This continued into the 1960s even during the people's commune period; at that time a tulou was often occupied by one commune production team. Each small family has its own private property, and every family branch enjoys its privacy behind closed doors.
In the old days, the allotment of housing was based on family male branch; each son was counted as one branch. Public duties such as organization of festivals, cleaning of public areas, opening and closing of the main gate, etc., was also assigned to a family branch on a rotational basis.
All branches of a family clan shared a single roof, symbolizing unity and protection under a clan; all the family houses face the central ancestral hall, symbolizing worship of ancestry and solidarity of the clan. When a clan grew, the housing expanded radially by adding another outer concentric ring, or by building another tulou close by, in a cluster. Thus, a clan stayed together.
Nowadays newer housing with modern facilities is popping up in rural China
Effective strongholds for defense
From the 12th century to 19th century, armed bandits plagued southern China Fujian
The thick (two metres at bottom, tapered to one metre on top) outer walls of tulous were immune to arrows and gunfire. The lower one- to two-metre section of the outer wall was sometimes built with granite blocks or large river cobbles. This granite or cobble section was immune to digging, since the outer layer of cobbles was purposely laid with the smaller ends pointing outwards—it would be futile for any attacker to dig out such cobbles. Digging a tunnel under the wall was not possible either, because the cobble section wall was extended deep down more than one metre.
The earth wall section was built with rammed earth together with lime-sand-clay mixture and reinforced with horizontal bamboo strips for lateral binding. It was solid as a castle, immune even to cannon fire. In 1934, a group of uprising peasants of Yongding County
The weak link in a walled system was usually the gate. But the gate of Fujian
Fujian Tulou residents used firearms for active defense, shooting at enemies from gun ports at the top level of the building. Some Fujian
Research
The term "tulou" first appeared in a 1573 Zhangzhou county record of the Ming dynasty; it was on record that due to the growth of bandits, many villagers built walled strongholds and tulous as a means of defence. Many families banded together in a stronghold, and several strongholds or tulous joined hand in hand with sentinels constantly on guard and lookout; loud drums and gongs were sounded as an alarm signal for any sign of approaching bandits or invaders. Due to the massive solidarity of tulou residents, even large powerful bandit gangs with tens of thousands of men dared not attack the inhabitants of tulou.
The term "tulou" also came out occasionally in some poems; other than that, the existence of tulou bypassed mainstream literature, and was not mentioned in literature published before 1956 dedicated to the study of the people's habitat.
In 1956 professor Liu Guo-zhen was the first scholar to carry out research on Fujian Tulou, his article Hakka dwellings in Yongding County of Fujian Province was published in The Journal of Nanjing Polytech Institute.
In 1980 Chengqi tulou appeared in a book titled History of Ancient Chinese Architecture. From then on, streams of scholars from mainland China , Taiwan , Japan , Europe and America
The book Fujian Tulou by Huang Han-min published in Taiwan in 1994, revised and republished in China in 2003 is at present one of the more authentic studies on Fujian Tulou, covering the history of tulou, its characteristics and style, its geographic distribution, folklore about tulou etc., with hundreds of color plates and drawing. English literature on this topic is still absent.
Transportation
The Fujian tulou buildings are scattered in mountainous SE region of Fujian
The tulous in Nanjing County are connected to the town of Nanjing Nanjing can be easily reached from the Zhanglong highway that connects Zhangzhou City with Longyan City Xiamen to Nanjing
There are commuter buses from Xiamen and Fuzhou
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