The clogging and outbreak processes of debris flow with large wood in Jiuzhaigou Valley, China

2020 ◽  
Author(s):  
Xiaoqing Chen ◽  
Jiangang Chen ◽  
Wanyu Zhao
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
World Heritage ◽  
Design Parameters ◽  
Amplification Coefficient ◽  
Large Wood ◽  
World Heritage Sites ◽  
Heritage Sites ◽  
Geological Disasters ◽  
Jiuzhaigou Valley

<p>UNESCO designated 1121 properties with outstanding universal value, including 869 cultural sites, 213 natural sites and 39 mixed sites, from 167 states parties as world heritage sites at the end of 2019. Some of them are threatened by geological disasters, especially, the landslides and debris flows become the most frequent hazard type at world heritage sites. Until 2019, China has 55 world heritage sites and ranks first in the world, with 24 places under threat from different types of geological disasters and these disasters directly or indirectly threaten the security of heritage points. The forest coverage rate in Jiuzhaigou valley is more than 80%, and the collapse, rock fall, landslide and other disasters induced by the Jiuzhaigou earthquake on August 8, 2017 have caused extensive forest destruction. We found that there are a lot of large wood (LW) in Jiuzhaigou valley that can be transported. According to previous study results, the process of blocking-outburst in gullies will appear with a large number of LW when transported along with debris flows. Compared with the discharge amplification effect of the debris flow in natural gully, the blocking-outburst effect of LW also intensifies the damage. The process of blockage and outburst with LW movement causes the discharge amplification of debris flow, while the discharge amplification coefficient determines the accuracy of discharge calculation, in further it affects the accuracy of engineering design parameters. Moreover, the LW carried in the debris flow may cause strong impact damage to check dams and other engineering measures. Therefore, we take the debris flow occurred in the Jiuzhaigou valley as an example to investigate the characteristics of the magnitude amplification ratio.</p>

A Synthetic Analysis on the Effective Protection and Management of World Heritage Sites in the Geological Disaster Area: A Case Study of Sichuan, China

2012 ◽  
Vol 524-527 ◽  
pp. 2702-2711
Author(s):  
Wen Jing Fan ◽  
Jian Hua Sun ◽  
Ke Qin Sun
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
World Heritage ◽  
World Heritage Sites ◽  
Chain Reactions ◽  
Heritage Sites ◽  
Geological Disasters ◽  
Geological Disaster ◽  
Secondary Disasters

In recent years, natural disasters occur frequently all around the world. Earthquakes and other geological disasters not only are destructive but also lead to serious secondary disasters. In south China’s Sichuan Province, on May the 12th 2008, an earthquake struck Wenchuan area followed by avalanches, landslides and debris flows, threatening the very existence of the 5 world heritage sites, designated by UNESCO, and reducing them to a vulnerable state. In this paper a summary is presented to show the characteristics of the geological disasters such as short duration, strong chain reactions, clear patterns, etc. Based on geological principles and methods and with the application of GIS and fuzzy comprehensive evaluation method, the potential damage and threats will be evaluated and analyzed together with the experience of heritage restoration and protection. With the ample analysis, this present thesis attempts to provide theoretical and practical basis for heritage conservation and management of geological disaster areas.

NESCO World Heritage Sites as a key for intercultural dialogue, humanist ideals and interfaith harmony

2021 ◽  
Vol 27 (2) ◽  
pp. 74-82
Author(s):  
А. Belekova ◽  
Keyword(s):  
World Heritage ◽  
Intercultural Dialogue ◽  
World Heritage Sites ◽  
Heritage Sites ◽  
World Heritage List ◽  
The World ◽  
Cultural Component ◽  
Set Up ◽  
Cis Countries ◽  
Education Science

The article focuses on promoting intercultural cooperation and strengthening international community on the example of UNESCO World Heritage sites, inscribed into the World Heritage List that is being formed on the basis of the World Heritage Convention of 1972. UNESCO is a universal intergovernmental UN structure responsible for international cooperation in the sphere of education, science, culture and communication. One of the main activities of the Organization is the world heritage conservation and intercultural dialogue. The article analyzes the UNESCO role in the geopolitical architectonics of Eurasia in which the World Heritage gains a qualitatively new meaning. In the context of a sustainable development the integration of promoting intercultural interaction and heritage safeguarding becomes particularly urgent. The article deals with several initiatives aimed at enhancing the cultural component of the Eurasian integration, including the goals and perspectives of discussion platforms set up for experience exchange in the sphere of World Heritage sites’ conservation and their management. The article seeks to identify the most important challenges and goals of the cooperation strategy between UNESCO and the institutions concerned in the field of the intercultural dialogue promotion in the Eurasian area that seems to be very important both for Russia and the CIS countries, and for the perspectives of the emerging global civilization of the future

A WOODEN-COLUMNED MOSQUE FROM ANATOLIA. BEYŞEHİR EŞREFOĞLU MOSQUE

2021 ◽  
Vol 14(63) (1) ◽  
pp. 89-100
Author(s):  
Alev ERARSL
Keyword(s):  
World Heritage ◽  
Structural System ◽  
Islamic Architecture ◽  
Structural Group ◽  
World Heritage Sites ◽  
Distinctive Features ◽  
Heritage Sites ◽  
Roof Structure ◽  
Master Builders

Wooden-columned mosques constitute a major structural group in Turkish mosque architecture. Inspired by the abundance of forestation in the region in which they were built, the mosques that made use of wood boasted of rich architectural ornamentation. It is the aim of this study to offer a presentation of Beyşehir Eşrefoğlu Mosque, one of the wooden-columned mosques that were widely constructed in the Anatolian Selçuk Era, taking their place in Anatolian Turko-Islamic architecture. A product of the local master builders of its time, the structure was included in UNESCO’s List of Provisional World Heritage Sites. In this context, the paper will describe the characteristics and elements of the layout of the Beyşehir Eşrefoğlu Mosque, its structural system, roof structure, and the distinctive features of the materials and adornments used.

Culture, tourism and World Heritage Sites

2017 ◽  
Vol 24 ◽  
pp. 111-116 ◽  
Author(s):  
Francisco González Santa-Cruz ◽  
Tomás López-Guzmán
Keyword(s):  
World Heritage ◽  
World Heritage Sites ◽  
Heritage Sites
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