Analysis of post-earthquake reconstruction for Wenchuan earthquake based on night-time light data from DMSP/OLS

2017 ◽  
Author(s):  
Yang Cao ◽  
Jing Zhang ◽  
Mingxiang Yang ◽  
Xiaohui Lei
2014 ◽  
pp. 427-445 ◽  
Author(s):  
Ping Xu ◽  
Xiaoli Lu ◽  
Kelvin Zuo ◽  
Huan Zhang

2010 ◽  
Vol 14 (4) ◽  
pp. 314-331 ◽  
Author(s):  
Yan Chang ◽  
Suzanne Wilkinson ◽  
Regan Potangaroa ◽  
Erica Seville

Post‐disaster reconstruction is likely to suffer resource shortages and supply disruptions. The devastating Wenchuan earthquake on 12 May 2008 in China served as a typical example. After the catastrophe, resource problems such as price escalation and market inflation posed a significant challenge to Chinese policy makers and reconstruction team. Based on field surveys, the study attempts to examine the Wenchuan earthquake reconstruction practice and identify the most vulnerable resources along with their resourcing impediments inherent in the reconstruction process. The research findings show that at the early stage of reconstruction, labour and materials such as brick, cement, steel and aggregate were the most needed yet vulnerable resources. Procurement of these resources was mainly hindered by (1) reconstruction schedule and speed, (2) the impacts of the 2008 global financial crisis, (3) inadequate local transportation capacity, (4) dysfunction of the construction market, and (5) insufficient engagement of local construction industry. While the interventions and measures Chinese government adopted after the earthquake seem to be able to deal with resourcing bottlenecks in a short time; different efforts to reduce the impacts of these five areas are needed with a view to expediting longer‐term disaster recovery and reconstruction. Santruka Atstatant po nelaimiu tiketina, kad truks ištekliu ir kartais nutruks tiekimas. 2008 m. gegužes 12 d. Kinija supurtes niokojantis Wenchuan žemes drebejimas – būdingas pavyzdys. Po katastrofos kilusi ištekliu problema, kaip antai pakilusios kainos ir padidejusi rinka, Kinijos politikams ir atstatymo komandai tapo rimtu iššūkiu. Remiantis praktiniais tyrimais, darbe meginama išnagrineti atstatymo veikla po Wenchuan žemes drebejimo ir nustatyti sunkiausiai gaunamus išteklius kartu su atstatymo procesui būdingomis kliūtimis ju gauti. Tyrimo išvados rodo, kad ankstyvajame atstatymo darbu etape labiausiai reikejo, bet daugiausiai trūko tokiu ištekliu, kaip darbo jega ir medžiagos: plytos, cementas, plienas ir užpildai. Šiu ištekliu isigyti labiausiai trukde (1) atstatymo darbu tvarkaraštis ir sparta, (2) 2008 metu pasaulines finansu krizes poveikis, (3) nepakankamas vietinio transporto našumas, (4) sutrikusi statybu rinka ir (5) nepakankamas vietines statybu pramones dalyvavimas. Nors po žemes drebejimo Kinijos valdžios pasirinktos priemones ir intervencijos būdai lyg ir leido trumpam pašalinti ištekliu trūkumus, šiu penkiu punktu poveikiui mažinti reikia ivairiu pastangu, kad spartus atsigavimas ir atstatymas po nelaimiu būtu ilgalaikis.


2018 ◽  
Author(s):  
Jianfei Wang ◽  
Jingfa Zhang ◽  
Lixia Gong ◽  
Qiang Li ◽  
Dan Zhou

Abstract. Seismic indirect economic loss not only has a major impact on regional economic recovery policies, but also related to the economic assistance at the national level. Due to the Cross-regional economic activities and the difficulty of obtaining data, it's difficult that the indirect economic loss survey covers all economic activities. However, night-time light in an area can reflect the economic activity of the region. This paper focuses on the indirect economic losses caused by the Wenchuan earthquake in 2008 and evaluated the progress of restoration and reconstruction based on night-time light Images. First, the functional relationship between GDP and night-time light parameters was established based on the pre-earthquake data. Next, the indirect loss of the earthquake was evaluated by the night-time light attenuation in the disaster area after the earthquake. Then, the capacity recovery, which is characterized by the brightness recovery process of the light area, was evaluated. Lastly, the process of light expansion in the disaster area was analyzed to evaluate the economic expansion speed and efficiency.


2011 ◽  
Vol 250-253 ◽  
pp. 1256-1261
Author(s):  
Wen Bin Jian ◽  
Run Li

Based on the field investigation for secondary geological hazards induced by 5.12 Wenchuan Earthquake, the types of geological disasters during or after earthquake are analyzed in this paper. The main secondary geological hazards are rock fall and collapse, landslide, debris flow, dammed lake,sand liquefaction and so on. The development and distribution rules of secondary geo-hazards, with a long-term sustainability and a formation of hazard chains, are of relation with earthquake fault zone, and consistent with seismic intensity. The buildings located in secondary geo-hazards areas with a high risk are damaged severely, thus the site selection for post-earthquake reconstruction and related geotechnical engineering issue are discussed, which are useful in reconstruction of Wenchuan earthquake area.


2012 ◽  
Vol 174-177 ◽  
pp. 3611-3614 ◽  
Author(s):  
Ming Ming Xiang ◽  
Xiao Ning Li ◽  
Juan Lin Fu

Through case studies of Japan's post-disaster reconstruction, the author thought that Wenchuan earthquake reconstruction needed to evaluate. After researched and analyzed the situation and characteristics of the city's reconstruction in three represents which are the new county seat of Beichuan, Weizhou in Wenchuan and Dujiangyan City, the author proposed 10 selected evaluation elements, in order to supply a technical reference for building evaluation system and carrying out the evaluation.


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