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동시출현단어 분석을 이용한 토양침식 연구동향 비교 분석

A Comparison of Current Trends in Soil Erosion Research Using Keyword Co-occurrence Analysis

  • 투고 : 2020.06.05
  • 심사 : 2020.09.03
  • 발행 : 2020.10.31

초록

최근의 환경정책과 산업은 사후관리에서 사전예방 중심으로 그 패러다임이 변화하고 있다. 이에 따라 국토의 유한자원으로서의 표토의 기능과 가치에 대한 인식 제고를 바탕으로 보전예방적으로 관리하기 위한 정책이 추진되고 있다. 이러한 배경을 바탕으로 이 연구에서는 국제·국내 전문학술지의 검색 데이터베이스(Web of science)를 기반으로 최근 10년간의 연구논문에 대하여 VOSviewer를 이용한 동시출현단어 분석을 실시하여 국내·외 토양침식 연구동향을 비교·분석하고 향후 연구방향을 제안하고자 하였다. 그 결과, 우리나라의 국토면적 대비 토양침식 관련 논문 게재건수는 세계적으로 비교적 상위에 속하고, 특히 토양침식 제어와 관련된 연구가 외국에 비해 큰 비중을 차지하고 있는 것으로 나타났다. 이러한 결과로부터 우리나라에서는 기후·지형·토지이용 여건에 따른 토양침식의 심각성을 인식하고 비교적 활발한 연구가 진행되고 있는 것으로 판단되었다. 그러나 토양침식 제어에 관한 연구영역은 외국에 비해 키워드 수가 적게 나타나 연구항목을 보다 다양화·확장할 필요가 있으며, 특히 토양침식의 프로세스와 이와 관련한 토양의 물리·화학적 특성에 대한 연구는 토양침식에 따른 문제의 근본적인 해결을 위하여 활발히 추진할 필요가 있는 분야로 나타났다.

Environmental policies and industry practices have recently seen a gradual paradigm shift from reactive management to proactive prevention of environmental impacts. Accordingly, preventive conservation policies are carried out to address the increasing value of protecting soils and soil functions as resources are limited. To propose a direction for future soil erosion research, we analyzed domestic and international research trends of soil erosion, based on journal papers retrieved from the Web of Science databases over the last decade, using VOSviewer for keyword co-occurrence analysis. The results showed that the number of publications on soil erosion per land area in Korea ranked high worldwide. In particular, studies on the soil erosion control were found to account for a more significant proportion than other countries. The active ongoing studies on soil erosion in Korea indicate that the country has recognized the severity of soil erosion resulting from climate, topography, and land use. However, the number of keywords found in the studies on the soil erosion control in Korea was relatively smaller than those found at the international level, indicating the need to diversify and expand the study subjects. In particular, studies on the soil erosion process and the related physical and chemical soil properties are necessary to find the fundamental solutions to soil erosion problems.

키워드

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