[논문]머신러닝기법을 활용한 가리왕산과 유명산 지역 주요 밀원수의 서식지 적합성 평가

이용주; 이민기; 이해인; 이창배; 심형석

doi:10.5532/kjafm.2023.25.4.311

머신러닝기법을 활용한 가리왕산과 유명산 지역 주요 밀원수의 서식지 적합성 평가
Evaluation of Habitat Suitability of Major Honey Trees in the Mt. Gariwang and Mt. Yumeong through Machine Learning Approach 원문보기

한국농림기상학회지 = Korean Journal of Agricultural and Forest Meteorology, v.25 no.4, 2023년, pp.311 - 325

이용주 (국민대학교 산림자원학과) , 이민기 (국민대학교 산림자원학과) , 이해인 (국민대학교 탄소흡수원 특성화대학원) , 이창배 (국민대학교 산림자원학과) , 심형석 (국민대학교 산림자원학과)

초록
AI-Helper

본 연구는 가리왕산, 유명산에 자생하는 주요 밀원수종인 음나무, 벚나무류, 피나무류 및 쪽동백나무를 대상으로 머신러닝기법(i.e., MaxEnt)을 활용하여 서식지 적합성 분석을 수행하였다. 분석 결과, 모형의 예측정확도인 AUC 값은 대부분의 밀원수종이 0.7 이상이었으며, 주요 환경 변수에 대한 반응 곡선 결과 주요 밀원수종의 서식지 적합성에 영향을 미치는 환경적 요인은 고도, 연평균 강수량, 연평균 기온으로 나타났다. 이는 고도 구배에 따른 기후 인자가 주요 밀원수종의 분포 패턴 설명에 있어 주요한 환경 변수임을 의미한다. 본 연구는 우리나라 밀원수림의 조성 및 관리 전략수립 뿐만 아니라 밀원수종의 분포도 제작 시 근거 자료로써 기여할 수 있을 것이다. 향후 다양한 층위에서의 꿀과 화분의 생산량 증대 및 꿀의 주년 생산을 위해서는 생물학적 변수를 반영한 다양한 지역 단위의 추가적인 데이터 수집 및 분석이 필요할 것이다.

Abstract ▼ AI-Helper

This study was conducted to analyze the habitat suitability of the major honey trees including Kalopanax septemlobus Koidz., Prunus spp., Tilia spp., and Styrax obassia Siebold & Zucc. indigenous to mountain Gariwang and Yumeong using the machine learning approach (i.e., MaxEnt model). The AUC values of the model predictions were mostly above 0.7, and the results of the response curves showed that the environmental drivers that had effects on the habitat suitability of the major honey trees were elevation, mean annual precipitation, and mean annual temperature. These results indicate that climatic drivers along the elevation gradient are the main environmental drivers in explaining the distribution patterns of the major honey trees. In addition, the results of the response curves of Prunus spp. and Styrax obassia Siebold & Zucc. differed slightly in terms of slope and mean annual solar radiation as the main environmental drivers. The results of this study will be valuable for the establishment of honey tree forests and management plans for the natural and artificial forests in South Korea, as well as for the mapping the distribution of honey trees. Further studies at different regional levels, reflecting biotic drivers, will be needed to expand the production of honey and pollen at different strata and to produce honey annually.

주제어

표/그림 (9)

그림 Fig. 1. Locations of study areas; (a) Mt. Gariwang and (b) Mt. Yumyeong.
그림 Fig. 2. Distribution maps of major honey trees, Kalopanax septemlobus Koidz., Prunus spp., Tilla spp., and Styrax obassia Siebold & Zucc., observed through field survey in Mt. Gariwang and Mt. Yumyeong.
표 Table 1. Summary data of environment factors for the Mt. Gariwang and Mt. Yumyeong. Abbreviations: Min, minimum; Max, maximum; SE, standard error; TPI, topographic position index; TWI, topographic wetness index; MAT, mean annual temperature; MAP, mean annual precipitation
표 Table 2. Results of principal component analyses (PCAs) of elevation and mean annual precipitation in Mt. Garwang and Mt. Yumyeong
표 Table 3. Categories and value ranges of habitat suitability
그림 Fig. 3. Potential distribution maps of major honey trees, Kalopanax septemlobus Koidz., Prunus spp., Tilla spp., and Styrax obassia Siebold & Zucc., in Mt. Gariwang and Mt. Yumyeong.
그림 Fig. 4. The relative importance (training gain) of 6 variables for major honey trees, Kalopanax septemlobus Koidz., Prunus spp., Tilla spp., and Styrax obassia Siebold & Zucc., in Mt. Gariwang and Mt. Yumyeong. Abbreviations for the environmental variables are shown in Table 1.
그림 Fig. 5. Response curves of variables affecting MaxEnt prediction for major honey trees, Kalopanax septemlobus Koidz., Prunus spp., Tilla spp., and Styrax obassia Siebold & Zucc., in Mt. Gariwang and Mt. Yumyeong. Abbreviations for the environmental variables are shown in Table 1.
그림 Fig. 6. Proportions of potential distributional areas of major honey trees based on suitability values from MaxEnt model in (a) Mt. Gariwang and (b) Mt. Yumyeong. The numbers in the graph represent the area (ha). The categories and value ranges of habitat suitability are shown in Table 3.

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표제어: PCR

동의어: Packet Collision Rate

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