Demilitarized Zone Research Articles

Passive Restoration Achieved through Natural Processes over 70 Years in the Korean DMZ

The Korean Demilitarized Zone (DMZ) is an area where human disturbance has been strictly restrained for about seven decades since 1953. As a result, compared with rural and urban areas in Korea with similar ecological conditions, the landscape structure of the Korean DMZ today shows a big difference in that it has a riparian forest and lacks any of the artificial landscape elements, such as agricultural and residential areas. The vegetation maps made in the 1950s and those made in recent years of a model site that extends throughout the DMZ, the Civilian Control Zone (CCZ), and adjacent rural areas show that successional changes in the DMZ and CCZ areas are remarkable, while changes in the rural areas are not clear. Rice fields have been replaced by riparian forests, whereas young forests in areas previously subjected to excessive use and pine forests have been replaced by broad-leaved forests. Among the three landscape elements that changed, it was found that riparian zones, where natural disturbance is usually frequent, could mitigate the impacts of human disturbance and restore the original features of nature sooner than any other elements. The results of analyses on landscape change that focused on rice fields before the Korean War also showed similar results: most of these fields had turned into riparian vegetation. Stand ordination of riparian vegetation investigated in the CCZ, rural areas, and urban areas showed clear differences in species composition and diversity among regions. In this study, we confirmed the passive restoration of the Korean DMZ and CCZ through natural regeneration processes as a result of restricted human disturbance over a period of about seven decades.

Heritage tourism and allegiance development: A study of the Korean demilitarized zone

The Korean Demilitarized Zone (DMZ) stands as a compelling destination for heritage tourism due to its rich historical and sociocultural significance. This study employs the psychological continuum model to explore allegiance development across four dimensions—awareness, attraction, attachment, and allegiance—within the context of DMZ tourism. The investigation delves into how DMZ tourists’ sociocultural motivation shapes their destination engagement, subsequently influencing emotional attachment and ultimately impacting revisit intention. Through a survey of DMZ visitors and the application of structural equation modeling, this study explores the dynamics of DMZ tourists’ allegiance. The findings reveal a positive relationship between sociocultural motivation and destination engagement, emotional attachment, and revisit intention. Destination engagement positively affects emotional attachment, albeit indirectly influencing revisit intention. Emotional attachment positively influences revisit intention. Furthermore, this study identifies notable moderating effects of DMZ tourists’ residency. Specifically, sociocultural motivation more strongly influences revisit intention, and destination engagement has a stronger impact on emotional attachment in international tourists compared to domestic tourists.

South Korean DMZ tourists’ experience co-creation explained by motivation, interaction, and emotional solidarity

Despite the military and political tensions surrounding the Korean Demilitarized Zone (DMZ), over 1.2 million individuals visit the destination each year. Considering various tourist motivations and the group-oriented tour setting at the DMZ and employing the Interaction Ritual Theory as a theoretical guide, this study examined how South Korean DMZ tourists' motivations and interaction led to emotional solidarity, thereby facilitating the co-creation of their DMZ experience. Study results (N = 409) revealed that politics and curiosity motivations significantly influenced their interaction, while knowledge and war motivations only impacted emotional solidarity. Emotional solidarity directly contributed to experience co-creation, whereas interaction only had an indirect impact mediated through emotional solidarity. The findings enrich the understanding of the distinctive roles of South Korean DMZ tourists' motivations and highlight interaction as a key in evaluating their experience co-creation. It especially offers new insights that emotional solidarity is a critical antecedent to experience co-creation. The findings provide government officials and destination managers with practical suggestions for further management and marketing of DMZ tourism. Future research can further consider group differences when testing the conceptual model—such as DMZ tourists' travel pattern (e.g., individuals or groups) or nationality (e.g., South Korean or foreigners)—and utilize qualitative research methods to complement the quantitative findings.

North Korean CO emissions reconstruction using DMZ ground observations, TROPOMI space-borne data, and the CMAQ air quality model

Emission uncertainty in North Korea can act as an obstacle when developing air pollution management plans in the country and neighboring countries when the transboundary transport of air pollutants is considered. This study introduces a novel approach for adjusting and reallocating North Korean CO emissions, aiming to complement the limited observational and emissions data on the country's air pollutants. We utilized ground observations from demilitarized zone (DMZ) and vertical column density (VCD) data from a TROPOspheric Monitoring Instrument (TROPOMI), which were combined with the Community Multi-Scale Air Quality (CMAQ) chemistry transport model simulations. The Clean Air Support System (CAPSS) and Satellite Integrated Joint Monitoring of Air Quality (SIJAQ) emissions inventories served as the basis for our initial simulations. A two-step procedure was proposed to adjust both the emission intensity and the spatial distribution of emissions. First, air quality simulations were conducted to explore model sensitivity to changes in North Korean CO emissions with respect to ground concentrations. DMZ observations then constrained these simulations to estimate corresponding emission intensity. Second, the spatial structure of North Korean CO emission sources was reconstructed with the help of TROPOMI CO VCD distributions. Our two-step hybrid method outperformed individual emissions adjustment and spatial reallocation based solely on surface or satellite observations. Validation using ground observations from the Chinese Dandong site near the China-North Korea border revealed significantly improved model simulations when applying the updated CO emissions. The adjusted CO emissions were 10.9 times higher than those derived from the bottom-up emissions used in this study, highlighting the lack of information on North Korean pollutants and emission sources. This approach offers an efficient and practical solution for identifying potential missing emission sources when there is limited on-site information about air quality on emissions.

가상박물관 플랫폼을 활용한 DMZ의 문화적 확장성 방안 연구

The purpose of this study is to use a virtual museum platform to expand the cultural and artistic experiences related to the DMZ (Demilitarized Zone). The DMZ, with its historical, political, military, ecological, and geographical significance, has gained global attention, vividly illustrating the unique geopolitical characteristics of the Korean Peninsula involving peace, confrontation, and coexistence. It is noteworthy that existing cultural and artistic activities in the DMZ often rely on direct participation. However, due to the challenges of accessibility, limited information, and cultural differences over time associated with the DMZ, there are difficulties in expanding cultural and artistic content.Therefore, in this study, we assume that digital platforms such as virtual museums utilizing 3D laser projection mapping or 3D scanning will play a crucial role in addressing these limitations. We aim to analyze the current situation and potential solutions by examining existing cultural and artistic activities within the DMZ, considering the role of these digital platforms in overcoming the identified challenges.

Establishing an Ecological Network to Enhance Forest Connectivity in South Korea’s Demilitarized Zone

This investigation delineated an ecological network within South Korea’s Demilitarized Zone (DMZ) to enhance ecosystem functionality, with a focus on forest landscape connectivity. The study employed spatial autocorrelation analysis and the minimum cumulative resistance model to identify key source patches. These patches are vital for maintaining connectivity across various topographies and land uses in the DMZ. Morphological spatial pattern analysis in the DMZ’s forest area showed a variation in forest patch types. The core class, less affected by external influences, was more prevalent in the eastern part. In contrast, the edge class, influenced by different environmental boundaries, was dominant in the western part. A 452.36 km long ecological network was constructed, serving as an essential corridor linking habitats of endangered species. This network covers a total forest area of 730.17 km2, which includes an existing forest protection area of 165.84 km2 (22.7%). The study also identified 564.33 km2 (77.3%) of previously non-designated forest regions as potential conservation areas. This aims to significantly increase forest connectivity within the DMZ. The research highlights the effectiveness of spatial planning tools in promoting ecosystem integrity in politically sensitive and restricted-access areas.

PERANCANGAN DE-MILITARISED ZONE (DMZ) BERBASIS INTRUSION DETECTION SYSTEM (IDS) PADA INFRASTRUKTUR JARINGAN KOMPUTER PEMERINTAH DAERAH KOTA SUKABUMI

De-Militarized Zone (DMZ) is a mechanism to protect the internal system from attacks by hackers or other parties who want to enter the system without access rights. The internal system is a confidential information system, the DMZ consists of all open ports that can be seen by outside parties so that hackers attack to crack the server that has the DMZ, so the hacker can only access hosts located in the DMZ. This is done so that internet users who can access the server cannot easily access and reach users on the local network. Within a network, hosts are most vulnerable to attacks that provide services to users outside. As computer networks develop in the Sukabumi City Regional Government, implementing a computer network security system model should be the main focus considering that there are many public services with high security risks and also the absence of a security system that can minimize data or application security risks on computer networks.

Identification of breeding habitats and kdr mutations in Anopheles spp. in South Korea

BackgroundMalaria is still endemic in South Korea. However, limited information is available on the current Anopheles breeding sites and the occurrence of insecticide resistance-associated genetic mutations and their distribution needed to control the malaria vector efficiently.MethodsThis study explored breeding sites of Anopheline adults in Gimpo-si, near the demilitarized zone (DMZ) in Gyeonggi-do province, South Korea, from 2022 to 2023. Genetic diversity was investigated based on the internal transcribed spacer (ITS2), cytochrome c oxidase subunit I (COI), and knockdown resistance (kdr) genes of Anopheles mosquitoes. A natural environment associated with the seasonal abundance of Anopheles larvae was characterized.ResultsTwo breeding sites of Anopheles larvae and adults were found at a stream margin or shallow freshwater near the forest in Wolgot-myeon in Gimpo-si without cattle shed within 1 km and in Naega-myeon in Ganghwa-gun with cow shed within 100 m in 2022 and 2023, respectively. Both sites were located between the newly cultivated lands and the forest. Besides, both breeding sites were in the valley at a slight elevation of 60–70 m from ground lands and maintained the shadow all day. Overall, the Wolgot-myeon breeding site showed various Anopheles spp. larvae, including Anopheles sinensis. Naega-myeon, an additional breeding site found in 2023, had Anopheles sineroides larvae, and approximately 59.7% (89/149) of An. sinensis adults inhabited within a 100-m distance. The total collection, including larvae and adults, revealed that An. sinensis, Anopheles pullus, Anopheles kleini, An. sineroides, Anopheles belenrae, and Anopheles lindesayi accounted for 44.2% (118/267), 0.7% (2/267), 0.7% (2/267), 22.1% (59/267), 1.9% (5/267), and 30.3% (81/267), respectively. Furthermore, various kdr mutant genotypes (F/F, C/C, L/F, L/C and F/C) in An. sinensis, and the first kdr allele mutant (L/F1014) in An. belenrae were identified in South Korea.ConclusionsTwo breeding sites of Anopheles larvae were studied in Wolgot-myeon and Naega-myeon. Various Anopheles spp. larvae were detected in both habitats, but overall, An. sinensis was the most prevalent adults in both study sites. The occurrence of kdr allele mutant of An. belenrae in South Korea was reported. Rigorous larvae monitoring of Anopheles spp., continuously updating information on Anopheles breeding sites, and understanding the environmental conditions of Anopheles habitats are required to develop an effective malaria control programme in South Korea.

Analysis of geometric morphometrics and molecular phylogeny for Anopheles species in the Republic of Korea

Human malaria, transmitted by Anopheles mosquitoes, is the most predominant mosquito-borne disease that is responsible for hundreds of thousands of deaths worldwide each year. In the Republic of Korea (ROK), there are currently several hundred malaria cases annually, mostly near the demilitarized zone (DMZ). Eight species of Anopheles mosquitoes are currently known to be present in the ROK. Similar to other major malaria vectors in Africa and India, it is very challenging to morphologically differentiate Anopheles mosquitoes in the ROK due to their extremely similar morphology. In this study, wing geometric morphometrics (WGM) were used to differentiate the eight Anopheles species collected at six locations near the DMZ, Seoul and Pyeongtaek from April–October 2021. Phylogenetic analysis was also performed using cytochrome c oxidase subunit 1 (COI), internal transcribed spacer 2 (ITS2), and tyrosine hydroxylase (TH) genes for comparison with WGM analysis and to infer evolutionary relationships. The results of cross-validation (overall accuracy = 74.8%) demonstrated that species identification using WGM alone was not possible with a high accuracy for all eight species. While phylogenetic analyses based on the COI region could not clearly distinguish some species, the analysis based on ITS2 and TH was more useful for resolving the phylogenetic correlation of the eight species. Our results may improve Anopheles species identification strategies for effective identification and control of malaria vectors in the ROK.

Vascular plant distribution in the Korean demilitarized zone and its surrounding areas

Previous studies examining the flora in the Korean Demilitarized Zone and its surroundings focused only on specific locations or ways to utilize these areas. We investigated vascular plant distribution in this area across the entire Korean Peninsula. Species richness, endemism, and alien species richness were examined for 54,948 occurrence records. Biodiversity and protection status were assessed, and a self-organizing map algorithm was used to divide the flora distribution into an Eastern region (including the Central region) and a Western region. Environmental factors of each distribution type were analyzed. The whole study area had 1,790 taxa of 655 genera and 151 families. The flora of the Central region was similar to that of the Eastern region, which had the richest biodiversity, whereas the Western region contained various invasive alien plants. Most areas with high biodiversity were classified as protected by international agreements. In the self-organizing map, the Eastern and Central regions exhibited large distribution of endemic and northern lineage plants, and the Western region showed high abundances of invasive alien plants. The considerable biodiversity of this area is threatened due to continuous housing development and military operations. Therefore, policies to ensure sustainable conservation of plant biodiversity “hotspots” are required.

통일과 안보 전략상 비무장지대(DMZ) 제도화에 관한 입법적 검토

The current Yoon Suk Yeol administration has clearly defined North Korea and strengthened cooperation between South Korea, the U.S., and Japan, but there is still room for inter-Korean summits due to peaceful unification and national security strategies. Therefore, in the long run, various strategies are needed to improve inter-Korean relations, and one of the issues that can be suggested is the institutionalization of the Demilitarized Zone (DMZ).
 The Demilitarized Zone should be converted from a military zone to a peace zone, developed into a clean ecological zone, and transformed into an inter-Korean joint cooperation project site that creates high added value. In addition, it is important to consistently convey and gain sympathy with North Korea by excluding any political considerations and using them together only from the perspective of economic and social benefits and environmental protection.
 In order to promote inter-Korean cooperation projects in the Demilitarized Zone, new normative systems such as new agreements and treaties that supplement and update the armistice agreement must be derived. South Korea may also consider forming a multilateral consultative body led by the United Nations, the United Nations Command, North Korea, and interested countries.
 Therefore, there is a fundamental limit to planning and implementing a master plan for the Demilitarized Zone and the border area unless compatible measures between legislation are taken suddenly under the current individual law system. Therefore, it is necessary to prepare an “institutional platform” so that all policies and discussions related to the Demilitarized Zone can be implemented consistently within the legal framework.
 Accordingly, an institutional platform for establishing cooperative projects is established through the enactment of the Special Act on Conservation and Sustainable Utilization of Environmental Resources in Demilitarized Zone. A practical project model is needed.

Empirical Comparison of Supervised Learning Methods for Assessing the Stability of Slopes Adjacent to Military Operation Roads

The Civilian Access Control Zone (CACZ), south of the Demilitarized Zone (DMZ) separating North and South Korea, has functioned as a unique bio-reserve owing to restrictions on human use. However, it is now increasingly threatened by damaged land and slope failures. In this study, a machine-learning-based method was used to assess slope stability by introducing the random forest (RF), support vector machine (SVM), extreme gradient boosting (XGBoost), and logistic regression (LR) approaches. These classification models were trained and evaluated on 393 slope stability cases from 2009 to 2019 to assess slope stability in the northern area of the Civilian Control Line, South Korea. For comparison, the performance of these classification models was measured by considering the accuracy, Cohen’s kappa, F1-score, recall rate, precision, and area under the ROC curve (AUC). Furthermore, 14 influencing factors (slope, vegetation, structure conditions, etc.) were considered to explore feature importance. The evaluation and comparison of the results showed that the performance of all classifier models was satisfactory for assessing the stability of the slope, the ability of LR was validated (accuracy = 0.847; AUC = 0.838), and XGBoost proved to be the most efficient method for predicting slope stability (accuracy = 0.903; AUC = 0.900). Among the 14 influencing factors, the external condition was the most important. The proposed supervised learning method offers a promising method for assessing slope status, may be beneficial for government agencies in early-stage risk mitigation, and provides a database for efficient restoration management.

Avian species survey with citizen-science data in Janghang Wetland, Goyang, Republic of Korea.

Monitoring of avian populations in Janghang Wetland, Goyang, Republic of Korea (ROK) is based on citizen science (also called community-based monitoring). This monitoring data can be used to track avian density, population status and waterbird census at local, national and regional levels. The Ministry of Environment (MoE) ROK has surveyed since 1999, including Odusan Unification Tower to Ilsan Bride, which connects the cities of Gimpo and Goyang along the Han River estuary. However, it has not covered Janghang Wetland, which is located in the Han River estuary at the transboundary between the two Koreas. The Janghang Wetland is a protected wetland in the Demilitarized Zone (DMZ) between the two Koreas. In 2019, Janghang Wetland was designated as a Flyway Network Site by Goyang City and the East Asian-Australasian Flyway Partnership. This Network site is a voluntary collaboration and includes many internationally significant wetlands for waterbirds that still lack formal national protection. In addition, it was designated as a Ramsar site in 2021. The wetland currently supports wintering population of White-naped Crane (Grusvipio), species listed as vulnerable and Tundra Bean Goose (Ansercygnoides), spring-autumn migration population of Swan Goose (Ansercygnoid), species listed as vulnerable and a breeding population of Black-faced Spoonbill (Plataleaminor), species listed as endangered in summer. We provide data that the Janghang Wetland is a significant area for migration and breeding for waterbirds; and that Han River estuary is also internationally important for waterbirds during the migratory bird season. We observed 14 orders, 42 families and 132 species. The surveys also observed the critically-endangered Black-faced Spoonbill (Plataleaminor), Swan Goose (Ansercygnoides), White-naped Crane (Grusvipio), Whooper Swan (Cygnuscygnus) and Peregrine Falcon (Falcoperegrinus). We also observed the Black-faced Spoonbill, Great Egret, Little Egret, Great Cormorant, Eastern Spot-billed Duck, Pheasant and Brown-eared Bulbul at the sensor camera point and White-naped Crane, Hooded Crane, Bean Goose, White-fronted Goose, Snow Goose, Swan Goose, Great Cormorant and Eastern Spot-billed Duck at the closed-circuit television camera point from the camera-trap surveys. Based on the species recorded, the survey area is of clear importance for biodiversity conservation.

Resource allocation in two‐layered cyber‐defense

AbstractA common network security approach is to create a De‐Militarized Zone (DMZ) comprising two layers of network defense. The DMZ structure provides an extra layer of security between the sensitive information in a network (e.g., research and development files) and the component of the network that must interface with the general internet (e.g., the mail server). We consider a cyber‐attack on a DMZ network where both attacker and defender have limited resources and capabilities to attack and defend, respectively. We study two optimization problems and one game‐theoretic problem. Given that the attacker (defender) knows the potential capabilities of the defender (attacker) in the two layers, we obtain the optimal allocation of resources for the attacker (defender). The two‐optimization problems are not symmetrical. Absent any knowledge regarding the allocation of the adversary's resources, we solve a game‐theoretic problem and obtain some operational insights regarding the effect of combat (e.g., cyber) capabilities and their optimal allocation.

Vascular flora near the iron fences in South Korea’s demilitarized zone

The demilitarized zone (DMZ), a military buffer zone between South and North Korea, is an ecological treasury free from human interference and a core ecological axis of the Korean Peninsula, making its conservation crucial. However, surveys have been insufficient because of restricted civilian access and ecosystem fragmentation. We aimed to investigate the ecological value of the DMZ and the regional characteristics of plants. A flora survey was conducted along the iron fences in the South Korean DMZ and analyzed by region. We recorded 1,051 vascular plant taxa comprising 121 families, 484 genera, 936 species, 25 subspecies, 81 varieties, and 9 formae. The region requires habitat protection because of the presence of 36 rare and 38 endemic taxa, and 35 floristic target species of Stage IV or higher. Invasive alien plants require further monitoring because 89 invasive taxa were recorded. Changes in military facilities or barren land operations can threaten habitats or create habitat edges. Biological resources, including plants, should be monitored for a multifaceted evaluation of the DMZ ecosystem value. Habitat restoration research and conservation activities should be conducted by establishing an environmental database linking environmental conditions with native plant habitats.

A city in a bunker in a city: Demilitarizing art in South Korea

AbstractLocated mere feet from the busy Yeouido Bus Transfer Center, the Seoul Museum of Art (SeMA) Bunker is a former military bunker from 1970s authoritarian South Korea that now showcases changing art exhibits. Debuting in November 2019, Paju (by artist Kim Seung Rea) features a series of paintings and statues capturing life in the town of Paju in the Geyeonggi Province near the border of the Demilitarized Zone (DMZ) that separates North and South Korea. As a critique of militarization, Paju not only offers a glimpse into the life that blossoms amidst the guard towers, bulwarks, and barbed wire, it challenges the power dynamic implicit in the space of the bunker. Cold War ideologies overlap in SeMA Bunker, for while the bunker was purportedly designed to keep the former president, Park Chung‐hee, safe during potential North Korean attack, the town of Paju was to act as human and infrastructural sacrifice to keep the rest of the country secure. Therefore, to bring Paju into the bunker via the exhibit is to inverse that power relationship and thus work to demilitarize the space, the town, and ultimately the patrons.

The Paradox of the DMZ: Making War, Division, and Unification Intelligible Through Korean Picture Books

Abstract: In South Korea, remnants of the Korean War are everywhere, especially at the Demilitarized Zone (DMZ), the 160-mile strip separating the two Koreas. The DMZ is a paradox: a site of intense militarism and great biodiversity, virtually untouched over decades of division. Inspired by Sohyun An's research on how American and international children's books portray the Korean War, we examine how South Korean picture books portray the paradox of the DMZ, specifically how it exists and what its future might be. We analyze five picture books alongside our observations at a DMZ peace park and war museum, and consider how these books contribute to what South Korean children might learn about division and war, the DMZ, and the complexities of unification and commercialization.

Applying mixed methods to explore lighter and darker shades in hybrid dark tourism experiences

Aplicación de métodos mixtos Para explorar los matices más claros y más oscuros en las experiencias híbridas de turismo oscuroDiseño/metodología/enfoqueEl propósito de este estudio es demostrar el encendedor (entretenimiento y estética) experiencias) y los lados más oscuros (experiencias educativas y escapistas) de las experiencias de turismo oscuro. Este El estudio también examina el efecto de los lados más claros y más oscuros de las experiencias de turismo oscuro en funcional y valor emocional.PropósitoPara investigar cómo y dónde los visitantes experimentan más claro y más oscuro lados del turismo oscuro, los autores realizaron entrevistas en profundidad a visitantes del desmilitarizado coreano zona desmilitarizada (DMZ). Demostrar las consecuencias de los lados más claros y más oscuros de las experiencias de turismo oscuro en valor funcional y emocional, los autores recopilaron datos de encuestas de campo. En conjunto, los autores utilizaron métodos mixtos con diseño secuencial exploratorio.HallazgosLos entrevistados describieron vívidamente su entretenimiento (cruzar el puente colgante) y Experiencias estéticas (ver una familia de pájaros grulla desde una corta distancia) en la DMZ coreana. Ellos también describió experiencias educativas (comprendiendo los antecedentes de la guerra civil) y escapistas (limitar las entradas diarias les hizo sentir como si estuvieran entrando en un lugar especial o incluso en un país extranjero). Los resultados de la encuesta mostraron que las experiencias educativas y estéticas aumentaron el valor emocional, mientras que Las experiencias educativas y escapistas mejoraron el valor funcional de un recorrido por la DMZ coreana.Originalidad/valorInvestigaciones anteriores operacionalizaron los lados más claros y más oscuros del turismo oscuro con base en Características de los sitios de turismo oscuro. Específicamente, los aspectos más oscuros y más claros del turismo oscuro fueron determinado, dependiendo de si tales sitios están directamente relacionados con la muerte humana o no. sin embargo, el El estudio actual se basa en las experiencias turísticas para operacionalizar los lados más claros y más oscuros del turismo oscuro. Si bien la investigación anterior se centró en el lado de la oferta, este estudio cambia el enfoque hacia el lado de la demanda, por lo que avanzar en el conocimiento de experiencias híbridas de turismo oscuro.

Autonomous Vehicles: The Cybersecurity Vulnerabilities and Countermeasures for Big Data Communication

The possible applications of communication based on big data have steadily increased in several industries, such as the autonomous vehicle industry, with a corresponding increase in security challenges, including cybersecurity vulnerabilities (CVs). The cybersecurity-related symmetry of big data communication systems used in autonomous vehicles may raise more vulnerabilities in the data communication process between these vehicles and IoT devices. The data involved in the CVs may be encrypted using an asymmetric and symmetric algorithm. Autonomous vehicles with proactive cybersecurity solutions, power-based cyberattacks, and dynamic countermeasures are the modern issues/developments with emerging technology and evolving attacks. Research on big data has been primarily focused on mitigating CVs and minimizing big data breaches using appropriate countermeasures known as security solutions. In the future, CVs in data communication between autonomous vehicles (DCAV), the weaknesses of autonomous vehicular networks (AVN), and cyber threats to network functions form the primary security issues in big data communication, AVN, and DCAV. Therefore, efficient countermeasure models and security algorithms are required to minimize CVs and data breaches. As a technique, policies and rules of CVs with proxy and demilitarized zone (DMZ) servers were combined to enhance the efficiency of the countermeasure. In this study, we propose an information security approach that depends on the increasing energy levels of attacks and CVs by identifying the energy levels of each attack. To show the results of the performance of our proposed countermeasure, CV and energy consumption are compared with different attacks. Thus, the countermeasures can secure big data communication and DCAV using security algorithms related to cybersecurity and effectively prevent CVs and big data breaches during data communication.

Fish Diversity and Ichthyofauna of Areas Adjacent to the Demilitarized Zone in South Korea

The Korean Demilitarized Zone (DMZ) was established in 1953 during the cessation of the Korean War, which divided the Korean Peninsula into North and South Korea. The DMZ is a representative biodiversity resource because it limits human activities. The current status of faunal diversity in adjacent areas of the DMZ was investigated in five regions at 91 sites from 2015 to 2019. A total of 19,562 individuals were collected and identified, including 81 species, 19 families, and 11 orders. Zacco koreanus was the most abundant fish species (relative abundance of 21.9%), while other key species were Zacco platypus (18.2%), Rhynchocypris oxycephalus (5.2%), Rhynchocypris steindachneri (4.9%), and Pungtungia herzi (3.7%). Notably, twenty-nige endemic and seven Red Data Book species were recorded, and three exotic species, Carassius cuvieri, Micropterus salmoides, and Lepomis macrochirus were found at five sites. Human activities and disturbances were found at 34.0% of all sampling sites, and the highest disturbance factors were river dredging and agricultural use (seven sites), sewage (five sites), and fisheries and development (two sites). We recommend that the governments of South and North Korea collaboratively manage the DMZ to protect ecological diversity and maintain its status as a symbol of peace.