Previous Page  107 / 156 Next Page
Information
Show Menu
Previous Page 107 / 156 Next Page
Page Background

[

] 107

A

CCORDING TO THE

relevant data shown by the

International Network for Bamboo and Rattan (INBAR),

more than 1 billion people lives in houses made of

bamboo; the global annual trade volume of bamboo and rattan

is about USD1.4 billion. Bamboo has a long and well-established

tradition as a building material throughout the world’s tropical

and subtropical regions. Even now, bamboo houses are common

in the rural areas of South China, Southeast Asia and Latin

America. Bamboo is widely used for many forms of construction,

in particular for dwelling houses in rural areas. It is a renewable

and versatile resource, characterized by high strength and light

weight, and it can be easily processed by simple tools. Bamboo

constructions are quite easy to build, particularly resistant to

earthquakes and readily repairable after a disaster. With the advan-

tages of flexibility, endurance and light weight, bamboo is quite

suitable for use in building seismic-resistant constructions.

Bamboo houses can provide shelter for earthquake victims

China is a country afflicted severely by earthquake disasters with a

high frequency of occurrences, vast affected territories and grave

losses. Since 1949, earthquakes in China have killed nearly 300,000

people, injured and disabled nearly 1 million people and destroyed

more than 10 million houses. Yunnan Province is located in

Southwest China, a fierce collision zone for the Indian Ocean

tectonic plate and the Europe-Asia tectonic plate. Yunnan Province

frequently suffers severe earthquakes, which often result in grave

loss of life and property. A large number of dwelling houses have

been destroyed and damaged due to earthquakes in Yunnan. Thus,

lots of dwelling houses will be reconstructed or repaired to resettle

victims by local governments in the post-disaster period. Often,

there is insufficient consideration of disaster reduction in recon-

struction projects, due to limited reconstruction funds, and the

newly built houses are probably still vulnerable to earthquakes, espe-

cially in rural areas.

In the aftermath of a severe earthquake, local governments often

find it difficult to provide enough safe shelters to resettle the victims.

The central government might dispatch some tents to local govern-

ments to alleviate this problem, but the transportation of tents takes

a lot of time. Sometimes it is difficult for the tents to reach disaster-

hit areas in time, due to road damage and rugged landforms. Local

governments need an effective and efficient resolution project.

Yunnan Province is a region of undeveloped, ethnic minorities

habitat and also a region prone to earthquakes. Abundant bamboo

resources are distributed in this region, and bamboo is used as a

major building material by local residents, especially ethnic minori-

ties. Bamboo can be used as a better quakeproof material due to its

toughness and light weight. Because of its cheap price and short

growth period, bamboo is widely used to build and reinforce

dwelling houses in earthquake prone areas so as to improve the

earthquake resistance of local dwelling houses.

In order to improve the effectiveness and efficiency of local govern-

ment emergency relief systems, the Recovery and Reconstruction

Management Office – the key management unit on the recovery

and reconstruction work at the national level – proposes a research

project aimed at facilitating the development and construction of

bamboo dwelling houses and bamboo shelters in the earthquake-

prone rural areas of Yunnan. This project is funded by the

ProVention Consortium’s programme for Applied Grants for Disaster

Risk Reduction. The Asian Disaster Preparedness Center is respon-

sible for managing the grant and the research progress of project.

Through this project, we will carry out some on-site surveys and

complete a research report, then deliver it to the local governmen-

tal stakeholders and community leaders in earthquake-prone areas

of Yunnan. We will encourage and guide them to build more seismic-

resistant bamboo dwelling houses in the post-disaster reconstruction

period and bamboo shelters in the pre-disaster period as a part of

disaster preparedness efforts, so as to provide victims with enough

safe shelters to protect themselves from the aftershock, and reduce

the loss of life and property to a minimum.

Bamboo houses will benefit earthquake-prone rural areas

in Yunnan

In this research project, the Xishuangbanna region is taken as a

research model area. It is located in the southern part of Yunnan with

a rich bamboo resource and a high frequency of earthquakes. Bamboo

houses (also called pile-supported houses) are the main type of

dwelling houses in Dai People’s village in Xishuangbanna. The

bamboo house, an embodiment of bamboo culture among ethnic

minorities in Yunnan, has distinctive ethnic characteristics and has

recorded the vicissitudes of history and culture. The culture of

bamboo building has survived and thrived through historical changes.

Since the economic prosperity and improved living conditions of

the 1980s, people have wanted better living environments and better

dwelling houses. Some Dai people’s new-built houses have gradu-

ally lost their traditional characteristics – some new houses are

made of iron-cement and bricks, with no traditional bamboo mate-

rials. The quantity of bamboo houses is decreasing. More

importantly, the bamboo house as a traditional culture of ethnic

minorities is gradually declining. But local residents are now begin-

ning to renew the tradition of bamboo houses. The bamboo house

The development of bamboo houses in

earthquake prone rural areas, Yunnan, China

Dr Hongzhou Lai, Recovery and Reconstruction Management Office,

National Disaster Reduction Center of China