• Journal of Life Science
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• v.29 no.7
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• pp.762-768
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• 2019

Doellingeria scabra Thunb. (syn. Aster scaber Thunb.), a perennial herb in the family Asteraceae, is frequently found in the wild mountain regions of Korea. This aim of this work was to measure the characteristics of patchiness of D. scabra in a local population on Mt. Maebong in Taeback-ci, Gangwon-do. The spatial distribution pattern of this species was estimated by analyzing ecological data by methods including the index of dispersion, Lloyd's mean crowding, and Morisita's index. The mean population density of the D. scabra population was 2.94. The D. scabra individuals were uniformly or randomly distributed in small-scale plots and were aggregately distributed in two large-scale plots ($16{\times}32m^2$ and $32{\times}32m^2$). The mean crowding ($M^*$) was 0.916. The mean patchiness index (PAI) was 0.796. Morisita's coefficient tended to decrease the density of the population as the plot size increased. The expected value of Eberhardt's index ($I_E$) in the local population was 2.623. Moran's I of D. scabra significantly differed from the expected value in 6 of 8 cases (75.0%). The first five classes were positive, with four showing statistical significance, indicating similarity among individuals in the first four distance classes (I-IV, 8 m), The results presented here could provide a theoretical basis for the conservation of D. scabra (Korean: chamchwi) and for the rehabilitation and sustainable management of forest ecosystems on Mt. Maebong, as well as on other mountains.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.20 no.6
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• pp.1-19
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• 2017

This study set out to identify problems with amphibian habitation by the wetland types and improve their habitation environment in urban forest wetlands, thus creating a habitat for amphibians. Study site include forest swamps in Jatjul Park as well as Yeoji neighborhood Park in Guro-gu, and in Choansan neighborhood Park in Dobong-gu. The forest swamp in Jatjul Park gets its water from Mt. Maebong and it is a former escalated farmland-turned wetland. The swamp area is $2,500m^2$, a forest zone and a landscape planting site are 83.27% and 6.70% each. Target species Seoul pond frogs are inseparable from rice fields because they live in a short radius of and lay eggs in or near paddy fields, and Rana nigromaculata have similarities with Rana plancyi chosenica in choosing their habitats. There was need for paths that would lead to other paths so amphibians would spread to other parts of the forest and for measures to secure open water. Modifying a variety of routes for water, human and animals along with building a buffer to keep the core habitation zones were required. The forest swamp in Yeonji neighborhood Park used to be a water reservoir on the foot of Mt. Gunji. The swamp area is $1,980m^2$, a forest zone and farmland account for 80.61% and 4.88% each. Non-point pollutants from upstream along run into the subject forest marsh, bare ground on the around swamp and steep stone embankments obstructed amphibians. Target species was Bufo gargarizans that live in forests and edges of hills and spawn in deep water. The forest swamp in Choansan neighborhood Park gets its water from Mt. Choan and it is close to its water source that it is a mountain stream forest wetland. The basin and the swamp are $35,240m^2$ and $250m^2$ in size respectively. A forest zone accounts for 90.20%, high stone embankments laid in refurbishing the valley obstruct amphibians and there is water shortage in times of droughts. Target species were Rana coreana, Rana dybowskii and Hynobius leechii that live in mountain valleys, streams and wetlands and lay eggs in forest marshes and rocks in valleys. Looking into the three swamps of amphibian habitation, I came to conclusions that those wetlands were suitable for their amphibians but man-made facilities blocked their corridors leading to other corridors and even killed off target species in some parts of those swamps by destroying those parts. Amphibians live in water, on ground and underground at different stages of life. Hence, we should take this fact into consideration when planning their habitats and design core habitation zones, buffers zone and use zones accordingly. Buffer zones ought to be between core habitation zones and surrounding trees. Aiming at protecting core habitation zones, buffers should be in harmony with habitation zones. Use zones should be minimized in size and not in direct contact with core habitation zones.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.04a
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• pp.28-28
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• 2018

본 연구는 강원도 인제군 매봉 지역 일대를 중심으로 식물상 조사를 수행하였다. 관속식물은 73과 173속 228종 3아종 28변종 6품종으로 총 265분류군으로 조사되었다. 분류군별로는 양치식물이 5과 14분류군, 나자식물 1과 3분류군, 쌍자엽식물 60과 182분류군, 단자엽식물 7과 29분류군으로 확인되었다. 주요 식물로는 특산식물 고려엉겅퀴(Cirsium setidens), 무늬족도리풀(Asarum versicolor), 병꽃나무(Weigela subsessilis) 등 8과 9분류군, 희귀식물은 멸종위기종(CR) 긴개별꽃(Pseudostellaria japonica), 애기가물고사리(Woodsia glabella) 2분류군, 위기종(EN) 댕강나무(Abelia mosanensis) 1분류군, 취약종(VU) 멱쇠채(Scorzonera austriaca subsp. glabra) 1분류군, 약관심종(LC)인 과남풀(Gentiana triflora var. japonica), 금강제비꽃(Viola diamantiaca), 너도바람꽃(Eranthis stellata) 등 9분류군으로 총 13분류군이 확인되었다. 환경부지정 특정식물종은 V등급 1분류군, IV등급 2분류군, III등급 13분류군이 확인되었다. 귀화식물은 단풍잎돼지풀(Ambrosia trifida), 달맞이꽃(Oenothera biennis), 닭의덩굴(Fallopia dumetorum) 등 6과 11분류군이 확인되었다. 산림청에서 지정한 특별산림보호대상종은 댕강나무(Abelia mosanensis), 참배암차즈기(Salvia chanryoenica)가 확인되었다. 유용식물로는 용도를 모르는 96분류군(36.2%)를 제외하면 169분류군(63.8%)이 자원식물로 이용가치가 있는 것으로 나타났다. 이들을 용도에 따라 구분해보면 식용 114분류군(33.2%), 섬유용 5분류군(1.5%), 약용 82분류군(23.9%), 관상용 33분류군(9.6%), 사료용 94분류군(27.4%), 산업용 1분류군(0.3%), 염료용 3분류군(0.9%), 목재용 11분류군(3.2%)으로 확인되었다.