• Journal of the Korean association of regional geographers
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• v.9 no.4
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• pp.437-460
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• 2003

It is recorded that the orignal Nam-Suk Bridge is constructed at the first year of Oh-Bong(B.C. 57). But I believe that it can be back to the 19 year of Jin-Hung King(AD. 558) by discovered bibliographies. The Nam-Suk Bridge is improved and remodelled from past to the late of Zosun dynasty by the development of walled city of Chongju. By the late of Gojong Empire, the Nam-Suk Bridge has stone post and monument of Nam-Suk Bridge. Because the alternations of Mu-Sim River channel, heavy floods, extension of built, up area and Japanese unconcern, the stone post and monument of Nam-Suk Bridge is lost approximately by 1910s and Nam-Suk Bridge is completely buried by the early 1930s. The Mu-Sim Hiver has negative aspects from past to the Japanese rule but has increasingly the positive aspects after the liberation of Korea. We must reconstruct these buried cultural resources to highlight the cultural identity of Chongju City.

• Journal of the Korean association of regional geographers
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• v.10 no.1
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• pp.132-150
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• 2004

According to cultural characteristics, Jung-Won cultural region are divided 10 sub-regions. These regions must be highlighted cultural image as core symbols and created new and regional culture to differentiate development strategy of cultural resources: (1) Chungju: historical and cultural region(stone pagoda of Tap-Pungri), (2) Zechun: cultural region of the righteous soldiers (captain Yu, In-Suk), (3) Dunyang: cultural region of Gogurue(mountain castle of On-Dal), (4) Chongju: educational and cultural region(Zikzi and Chull Dandgan), (5) Boeun: cultural region of buddhism(Bupzoo temple,) (6) Okchun: cultural region of Silla and Bakje(war of Silla and Bakje), (7) Yongdong: cultural region of three provinces(harmony monument stone of Samdobong), (8) Eunsung: cultural region of scholar spirit(Monument of 6. 25 war), (9) Goessan: cultural legion of cofucianism(confucianist Song, Shi-Reull), (10) Zinchun: cultural region of Sam-Guk unification spirit (general Kim, You-Shin).

• Journal of the Korean Geographical Society
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• v.44 no.4
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• pp.497-509
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• 2009

Records on natural hazards such as droughts, floods, smallpox and attacks of grasshoppers are classified and analyzed during the Ancient Times(BC 57$\sim$AD 935) based on the Historical Records of the Three Kingdoms Age(Samguksaki main record), and influences on human activities and relationships of each natural hazard are studied. The strongest influences on the agricultural productivity were the drought and the influences of floods were weak. The most floods were not destructive hazards because the cultivated lands were distributed in the valley plains and the towns and villages were constructed in the area free from the floods during the Ancient Times. The attacks of grasshoppers have the high frequencies with the droughts. The smallpox of the Ancient Times has no relationships with the dearth, floods and droughts. This means that the waterborne infections happened periodically and after the unification, the infectious diseases happened continuously due to the urbanization leading the concentration of population on the capital. Two cycles of droughts are recognized, and they happened with the time intervals of approximately 500 years during approximately 1000 years in Shilla dynasty.

• Journal of the Korean Geographical Society
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• v.51 no.6
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• pp.761-777
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• 2016

This study is to suggest landform and environmental problems of border region of N. Korea and China by analyzing results of field work for the Dumangang and the Amnokgang from year 2000 up to year 2016. By the social system in North korea, access of study material is possible with satellite image and published statistical data, but impossible direct data collection. We gathered field work data on landform and environment in border Region of N. Korea and China. Before field survey, we analysed geometrical landform and geology using DEM and digital geology map. We analyzed landform and environmental problems occurring in upper, midstream, and downstream region of the Dumangang and the Amnokgang using field work data. Resultingly, this study will be expected to support as basic data for resonable management on natural resources and empirical research activities on North Korea.

• Journal of the Korean association of regional geographers
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• v.11 no.4
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• pp.453-462
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• 2005

The study deals with surface erosion patterns due to the development of cropland toward hillslope and hilltop in the Oncheon-gun, pyeongbuk province and Nampo city of west coast area in the North Korea, using Quick Bird satellite images with 60cm resolution. In North Korea, for national economic difficult after 1980 year, newly developed croplands have been along the gentle hillslope, in which it is possible for individual man power different from the tideland which needs large scaled man-power and equipment. The new croplands are named Darakbat(terraced farm with embankment) and Bitalbat(titled farm developed on the original hill slope), neighboring with orchard and grouped settlement in lower valley. For supplying agricultural water, irrigation ditches and temporal crop storages have been constructed, connecting Darakbat, Bitalbat and orchard. These cropland developments have caused surface erosion composed of 3 types such as pit, linear and headward erosion, together with rill and gully. Owing to poor management of cropland and irrigation system, topsoil erosion and, collapse and sedimentation of ditch and pool, caused the decrease of agricultural productivity. These analysis using Quick Bird images can suggest original raw data about geographical facts on North Korea agriculture and help to recover their agricultural system and plan future national unified land.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.3
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• pp.407-418
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• 2011

The southern region including Guangzhou(黃州), the capital of Guangdong Province, was called "South of the Mountain Range" (嶺南) because it is located south of the Five Mountain Ranges (五嶺) which made mobility difficult prior to unification of China by Qin dynasty (秦) in 221 BCE. The Guangdong region of the South of the Mountain Range (嶺南) was an administratively independent unit and, as such, called the Nanyue kingdom (南越國). This is the origin of the Chinese character "yue", and terms such as yueyu (Cantonese), yuecai (Cantonese cuisine), yueju (Cantonese opera) are still in use today. Guangzhou, called Panyu (番禹) during the Nanyue kingdom period, was settled early in the northern part of the Pearl River (珠江, Zhu Jiang) delta. It became the first port to open its doors to the great powers of the West during the Qing period. Although it has now fallen behind Shanghai which developed later, Guangzhou is still the third largest city after Beijing and Shanghai, and thus, it is an influential open coastal city. Today, not only is Guangzhou the world center of the light textile industry, it also spurs development in various manufacturing industries. Along with nearby Hong Kong, Macao, and Shenzhen, it plays the role of cradle of the Pearl River delta economic zone. Firmly established early on as the greatest central city in southern China, Guangzhou is simultaneously a hub in various aspects such as regional politics, economics, and culture; it was also the center of revolution and resistance which attempted to challenge the northern political powers. Guangzhou is known for the history of the rise and fall of its port, but with developmental efforts, it still maintains its influence. Guangzhou's dynamic development of today brings with it issues such as the environment and moral system which must be dealt with.

• Journal of the Korean Geographical Society
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• v.50 no.5
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• pp.485-503
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• 2015

This study aims at evaluating geomorphological classification systems to predict the occurrence of landslides in mountainous region in Korea. Geomorphological classification systems used in this study are Catena, TPI, and Geomorphons. Study sites are Gapyeong-gun, Hoengseong-gun, Gimcheon-si, Yeoju-si/Yicheon-si in which landslide occurrence data were collected by local governments from 2001-2014. Catena method has objective classification standard to compare among regions objectively and understand the result intuitively. However, its procedure is complicated and hard to be automated for the general public to use it. Both TPI and Geomorphons have simple procedure and GIS-extension, therefore it has high accessibility. However, the results of both systems are highly dependent on the scale, and have low relevance to geomorphological formation process because focusing on shape of terrain. Three systems have low compatibility, therefore unified concept are required for broad use of landform classification. To assess the effectiveness of prediction on landslide by each geomorphological classification system, 50% of geomorphological classes with higher landslide occurrence are selected and the total landslide occurrence in selected classes are calculated and defined as 'predictive ability'. The ratio of terrain categorized by 'predictive ability' to whole region is defined as 'vulnerable area ratio'. An indicator to compare three systems which is predictive ability divided by vulnerable area ratio was developed to make a comprehensive judgment. As a result, Catena ranked the highest in suitability.

• Journal of the Korean association of regional geographers
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• v.11 no.2
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• pp.278-290
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• 2005

This study deals with the geomorphic, environmental and land use changes by comparative analysis using Landsat TM images of 1988 year and ETM ones of 2002 year, partly together with the new Quick Bird images having 60cm resolution for more detail analysis, focusing on the Oncheon gun(county) in Pyeongnam Province, west coast zone of North Korea. The main analysis methodology is neural network classification, which is more advanced techniques for the classification of land cover and land use, with higher accuracy rate and lower errors. The TM images of 1988 year show, mainly, the on-construction tide embank for the reclamation at Gwangryangman bay and salt farm on the reclaimed tidal flat. But, ETM images of 2002 year present stabilized reclaimed land, salt farm and rice field, recently transformed from salt farm. Especially, new tidal land has been naturally developed on the coastal shallow out of tide embank and salt farm. The results of the study may help to database coastal environmental changes and to support for reasonable and productive land use of North Korea, and to manage and plan unified national land in the near future.

• Journal of the Korean association of regional geographers
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• v.17 no.4
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• pp.459-476
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• 2011

This research aims to figure out the impact of different reflective thinking methods on pre-service geography teachers' teaching knowledge. Four pre-service teachers in the same level were selected through the first simulated instruction, Then, different reflective methods were given them to carry out the reflection. Afterwards, they carried out their second simulated instruction. The change of average score of pre-service teachers was analyzed through the peer reviews and Paired samples T-test. The results are as follows. First, when the first peer review score were compared with second peer review, average score of all pre-service teachers improved. But, pre-service teachers who got cooperative reflection with a specialist had the widest variation in the increase level of average score comparing to those without reflection or reflective journal writing. Second, reflective journal writing through self-reflection led to their reflective thinking, but it did not induce them to reflective practice. Finally, pre-service teacher who got cooperative reflection with experienced teachers got the significant improvement in PCK through the T-test. In particular, it had significant statistical value in instruction section and understanding of students section. It demonstrates that the contextual section could be improved by self-reflection or repetitive class practices, while instruction section and understanding of students section needed consulting by assistants.

• Journal of the Korean association of regional geographers
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• v.5 no.2
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• pp.29-45
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• 1999

This study reviewed theories on entrepreneurial local governance and inquired the changing regional policy in Chonnam region. The region became exposure as the direct investment unit of global capital by globalization of capital, the inter-regional competition and the relative reduction of the role and function of nation state. Therefore local government have the relative autonomy and the region is effected as the chosen space by capital according to the free movement of capital. It has been argued that there has been a reorientation of urban governance away from the local provision of welfare and services to a more outward-orientated stance designed to foster and encourage local growth and economic development. These profound changes in the way that cities operate have seen the public sector taking over characteristics once distinctive to the private sector leading many commentators to term such modes of governance as entrepreneurial. In Chonnam region, many local governments are introducing entrepreneurial policies for regional development. It appears as place marketing strategy to attract capital and tourists. This strategy is very important to used identity or culture of region in order to make the attractive region. The entrepreneurial characteristics and strategies appear as image unification of region, commodity development of natural or cultural resource, event and business projects. From this point of view, the entrepreneurial policy that is based upon regional growth can cause the problem of social justice like distributional distortion and inequality.