지리산 식물군락의 분포와 지형적 특성

연명훈 ( Myung Hun Yeon ),서민환 ( Min Hwan Suh ),양금철 ( Keum Chul Yang ),최상규 ( Sang Kyoo Choi ),심재국 ( Jae Kuk Shim ) 한국지형학회 2006 한국지형학회지 Vol.13 No.4

CDMA 망의 단일 셀을 이용한 위치 추정 방법

연명훈(Meung Hoon Yeun),유흥렬(Heung-Ryeol You),홍대식(Daesik Hong),윤대희(Dae-Hee Youn),이충용(Chungyong Lee) 한국통신학회 2000 한국통신학회 학술대회논문집 Vol.2000 No.7

인위적 광구배에서 몇몇 목본식물의 초기성장 분석

장민규,연명훈,양금철,심재국 中央大學校 基礎科學硏究所 2002 基礎科學硏究所 論文集 Vol.16 No.-

Seedlings of Zelkova serrata, Fraxennus rhynchophylla, Quercus mongolica, Q. dentata and Q. acutissima were raised to compare the ecological responces to the light gradient between them during 116 days in 0.1%, 15.4%, 27.6%, 55.4% and 100% of daylight. Growth analyses were carried out with data obtained from two harvests during the growing season. The first harvest was carried out after adaptation periods of 53days in each light condition. The second harvest was performed after adaptation periods and 63 days growing periods. Total dry weight, RGR and NAR increased with increasing relative light intensity in all tree specics. Q. acutissima showed the highest increasing rate and Q. mongolica showed the lowest rate. In the deepest shade, RGR and NAR of Q. mongolica were higher than the other Quercus species. SLA and LAR decreased with increasing light intensity in all species. Q. mongolica showed the lowest LAR in all light intensity. LWR of Z. serrata increased with increasing light, but that of F. rhynchophylla and Q. mongolica showed high level of LWR in the deepest shade. Shoot/Root ratio of Z. serrata, Q. acutissima was higher than the other species. SHWR increased with decreasing light in all species. Z. serrata was showed the highest SHWR in al light treatments. As increasing of light intensity, Fraxennus rhynchophylla showed decreasing leaf weight and constant stem weight, but Zelkova serrata showed the opposite to Fraxennus rhynchophylla. Chlorophyll contents and changing amounts according to changes of light intensity were higher in Q. acutissima, Z. serrata than F. rhynchophylla and Q. mongolica. According to these results, A. serrata and Q. acutissima has the characteristics of faster response of growing and allocation of photosynthetic material to the changes of light intensity than F. rhynchophylla and Q. mongolica. These results indicated that F. rhynchophylla and Q. mongolica were more shade tolerant than the other species. Z. serrata and Q. acutissima showed the characteristic of shade-intolerant, Q. dentata was intermediate response.

靑溪山의 植生에 關한 硏究

宋政勳,延明訓,梁金喆,沈載國 中央大學校 基礎科學硏究所 2001 基礎科學硏究所 論文集 Vol.15 No.-

A study on the forest vegetation of Mt. Cheong-gye was conducted from March 2000 to Rugust 2001. By the physiognomy and the ZM method, the vegetation of the Mt. Cheong-gye was classified into six plant communities and two plantations ; Quercus acutissima, Quercus mongolica, Quercus aliena, Quercus variabilis, Pinus densiflora, Betula davurica community, and Larix leptolepis, Robina pseudo-acacia plantation. Q. mongolica community occupy the largest area. Oak plant communities whow high appearance frequency at mesic soil condition such as western side slope and saline. On the other hand P. densiflora community appears at xeric condition such as sidgeline of the mountain. Considering the frequency distribution of DBH-class in each plant community, this area is recognized as secondary forest and intermediate succesional phase after disturbance.

시화공단 완충녹지대의 식생과 조류의 분포 특성

강종현,연명훈,김용기,서경옥,박성준 한국자연보호학회 2016 한국자연보호학회지 Vol.10 No.2

The buffer green space of Sihwa industrial complex is located on the boundary of residential areas and industrial areas, and this regions have been the ability to mitigate environmental impact of noise, vibration, atmospheric. In this area, the survey of vegetation and bird was conducted to understand the biology structures and function of buffer green space from biology habitats and natural recovery for ecology restoration. The survey was performed four times according to the season. As a result, vegetation were distributed to the most widely Pinus thunbergii community (72.2%) in the whole survey area (approximately 0.32 km2), and grasslands (6.6%), Amorpha fruticosa community (4.1%), Koelreuteria paniculata community (4.0%), Acer buergerianum community (3.9%) in the order of distribution. The characteristics of vegetation distribution were mainly planted Pinus thunbergii in outlying areas, and Koelreuteria paniculata, Acer buergerianum, Sophora japonica, Quercus acutissima were planted in the middle areas. The birds observed in this area were a total of 37 species, 912 individuals, the species of legal protection were observed Falco tinnunculus 1 individuals. The most of birds observed in this area were the resident that can be observed easily in the park and greenland surrounding urban. The waterfowl almost were not observed because of lacking water space. Thus, as providing safe habitats and movement passageway of wildlife, the connection of ecological green areas will be strengthened.

실내수영장 내 자유수영 운영 방식에 대한 고찰

서민기(서평자),연명훈(Myeongheum Yeoun) 한국디자인학회 2022 한국디자인학회 학술발표대회 논문집 Vol.2022 No.11

대형 수생 식물의 초기 분해에 관한 연구

신진호,최상규,연명훈,김정명,심재국 한국생태학회 2006 Journal of Ecology and Environment Vol.29 No.6

This study examined the decomposition of blades and culms of aquatic emergent plant species,Zizania latifolia, Phragmites comunis and Typha angustata, The experiment was carried out from July to December, 205 in fresh water of Lake Paldang using litter bag method. The liter bags had 1.2 mm mesh size and were suspended at 1 m depth of water surface. Remaining mas of blades and culms of each species after 97 days was 21.2% and 22.6% of initial mas in Z. latifolia, 32.5% and 56.4% in P. comunis and 44.7% and 38.1% in T. angustata, respectively. The plant tisue having high N concentration and low C/N exhibited the faster decay rate than the others. rate. Water temperature was the most effective environmental factor on the emergent macrophyte liter decomposition in aquatic ecosystems. According to the water temperature, DO, NO3--N, and total phosphate concentration were changed in the linear way. The mas loss of plant tissue of emergent macrophytes showed positive relationship with P concentration in water. The experiments on the decomposition of the liter using diferent mesh sized liter bag did not show significant diferences betwen them. The results suggest lentic and lower part of a stream, was afected by microbial activities better than the micro-invertebrates such as shredders.

Decomposition and Nutrient Dynamics of Aquatic Macrophytes in Lake Paldang

신진호,양금철,연명훈,심재국 한국생태학회 2007 Journal of Ecology and Environment Vol.30 No.3

This tudy examined the decomposition of blades and culms of aquatic emergent plant species,Zizania latifolia, Phragmites comunis and Typha ngustata , and changes in utrient contents during decom-position. Z. latifolia,P. comunis and T. angustata were the most frequently ocuring species in Lake Paldangof Han River, Korea. Experiments were caried out from July 27 to December 14, 205 in Lake Paldang usingthe liter bag method. The remaining mases of blade liter of each species at he nd of experimental periodwere 21.2% of initial dry weight in Z. latifolia, 32.5% in P. comunis , and 4.7% in T. angustata. In adition, theremaining mas of culm was 2.6% of initial dry mas in Z. latifolia, 56.4% in P. comunis , and 38.1% in T.angustata . During the liter decomposition period, P, K, Na, and Mg concentration decreased rapidly within 10days, but Ca nd Mn concentration declined slowly. K content s remained below 10% of initial values in al itersamples retrieved uring decomposition, whereas Ca nd Mg c oncentration remained above 40% and 50%during decomposition in al thre species. Na, P and Mn conte nts in liter varied among species and plant parts.P concentration in culms ofP. comunis remained at about 60% of initial concentration throughout he study,but he remaining P content in culms of Z. latifoliawas only 10% of the original value at he nd of the studyperiod. The Mn concentration in blades of P. comunis increased about 15-fold relative to the initial contentby the nd of experiment.

멸종위기종 한계령풀(Leontice microrhyncha S. Moore)의 서식지 및 분포 특성

이상훈 ( Sang Hoon Lee ),연명훈 ( Myung Hun Yeon ),심재국 ( Jae Kuk Shim ) 한국환경생태학회 2011 한국환경생태학회지 Vol.25 No.6

최근 범지구적 문제가 되고 있는 지구온난화와 이로 인한 서식처의 환경변화는 고위도 지방의 식물이나 고산식물의 생존에 중대한 문제가 되고 있다. 본 연구는 강원도 태백산맥 고산지대에 분포하는 환경부지정 멸종위기종인 한계령풀 10개 집단에 대해 서식지와 분포 특성을 조사하기 위해 수행되었다. 한계령풀은 고도 940m~1,350m 의 범위에 분포하였으며, 이는 온도기후적으로 온량지수 (WI) 53℃·month~WI 75℃·month에 해당하여 냉온대북부림대에 속한다. 이 종은 5°~23° 경사의 북동사면에 주로 출현하였다. 한계령풀 분포지의 교목층은 신갈나무, 거제수나무, 층층나무, 고로쇠나무가 우점 하였으며, 관목층에는 고추나무, 물참대, 국수나무 등이 우점 하였다. 한계령풀 집단의 초본층 종다양도(Shannon`s Index)는 0.21에서 0.98이며 각 집단에서 한계령풀의 중요치는 개화기에 가장 높은 값을 나타내었다. 서식지의 특성에 대한 본 연구는 한계령풀의 보전과 복원 전략의 수립 결정에 중요한 기초자료로 이용될 수 있을 것이다. Climate change is recognised as the best serious environmental problem in recent time, and high alpine or high latitudinal organisms especially endangered by its change. Leontice microrhyncha is recorded one of the endangered species by the Ministry of Environment Korea. We surveyed ten L. microrhyncha populations distributed at Taebaek Mountains, high mountain area in Kangwon province. L. microrhyncha is distributed 940m~1350m high altitude which equivalent of Warmth Index 53℃·month to 75℃·month, the range of conspicuous cool temperate forest zone. The plant species distributed at slope of 5°~23° on northeast slopes. The vegetation structure at tree layer of L. microrhyncha distribution area is dominated by Quercus mongolica, Betula costata, Cornus controversa, Acer mono in tree layer, and by Staphylea bumalda, Deutzia glabrata, Stephanandra incisa in shrub layer. The species diversity of herb layer of each L. microrhyncha population showed from 0.21 to 0.98, and the importance value of L. microrhyncha in each population was the highest at blooming time of L. microrhyncha. These results will provide the basic information for the development of conservation strategies for this endangered species.

식생 분포 확률 추정을 통한 북한산 국립공원의 잠재자연식생 추정

신진호 ( Jin Ho Shin ),연명훈 ( Myung Hun Yeon ),양금철 ( Keum Chul Yang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2013 한국환경복원기술학회지 Vol.16 No.3

The study for the estimation potential natural vegetation was estimated the occurrence probability distribution using geographic information system (GIS) in Bukhansan National Park. Correlation and factor analysis were analyzed to estimate probability distribution. Coefficients were calculated by logistic regression analysis. Correlation coefficients were significantly at the 0.01 level. Commonality of elevation, annual mean temperature, warmth index and potential evapotranspiration were high value, but topographic index was low value. Communities of over the 0.3 points distribution probability, Quercus mogolica communities were the largest area, 76,940,900 m2, Pinus densiflora communities area was 860,800 m2, Quercus acutissima communities area was 500,100 m2 and Quercus variabilis communities area was 1,000 m2, but Q. aliena, Q. serrata, Carpinus laxiflora and Zelcova serrata communities was not appeared. Therefore, potential national vegetation of Bukhansan national park was likely to be Q. mongolica community, P. densiflora community, Q. acutissima community and Q. variabilis community.