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      • SCOPUSKCI등재

        서해안 간척지 토양의 탈염특성

        민병미,김준호 한국생태학회 1997 Journal of Ecology and Environment Vol.20 No.4

        Vertical and temporal characteristics of desalinized reclaimed soil were analyzed from reclaimed coastal land on the western coast of Korea. Of the vertical changes during desalting, pH valuse were the lowest at the topsoil without regard to reclaimation time. The content of C1 were designated as the early period (the first 2-4 years) which decreased exponentially and the later period(the last 5-7 years) which was almost constant, from top to down. In temporal changes of the soil attributes, pH values increased for 5 years and decreased at 6 year after reclamation. Chlorine leaches more rapidly than Na does, K and Ca are constant but Mg increases as time elapsed after reclamation. Sometimes the content of Ca and K in the reclaimed soil are of higher concentration than that of the seawater after reclamation. During desallinization as exemplified by decreasing EC of the soil, Cl and Na are rapidly leached, but K, Ca and Mg are somewhat enhanced. The ration of Na/Cl in the soil equals 1 when the EC registers 5 mmho and then increases dramatically as the EC decreases. Rapid leaching of $Cl^{-}$ elicits an increasing pH valus. The electrostatic balance of the soil is achived by replacement of $Cl^{-}$ with $OH^{-}$ until stationary or until a decreasing pH value is reached again.

      • SCOPUSKCI등재

        수 종 목본식물의 생육초기 기온과 잎의 생장

        민병미 한국생태학회 1994 Journal of Ecology and Environment Vol.17 No.1

        To investigate the relationship between leaf growth of several woody plants and ait tempera ture in early growing season (from April to June) in deciduous forests, I surveyed the changes of leaf area (LA), leaf weight (LW) and specific leaf area (SLA) of 19 specles, in two areas Namhansansung (NA) and Taegwallyong (TA) area in which that the latitudes are similer ($37^{\circ}28'N$ at NA and $37^{\circ}27'N$ an TA), but annual mean-temperatures were different ($11.8^{\circ}C\;in\;NA, \;6.3^{\circ}C$ in TA) for two years, 1991 and 1992. In the same species, the plants of NA began to grow 10-25 days earlier than those of TA, but the latter grew faster than the former. On 10 June the values of LA and LW per leaf were similar in the two areas but the maximum values of SLA were higher in NA. In the same plant, the values of LA and LW were constant year by year, except for PYIOLUS leveilleana, Quercus mongolica, Symplocos chznensis for. pilosa and S t y a r ubussiu. In N A , the leaves be gan to grow during the first ten days of April, and eariler in 1992 than in 1991, and daily mean temperature (DMT) of the former from 27 March to 6 April were higher than those of thc latter. But the LA increased faster in 1991 than in 1992. and DMT from 10 April to 16 April were higher in 1991 than in 1992. 온대 낙엽수림에서 생육초기 기온과 잎의 생장과정 사이에 관계를 규명하기 위하여, 연평균기온이 크게 다른 두 지역-남한산성과 대관령 지역-에서 1991년과 1992년의 2년간 수 종 목본식물을 대상으로 잎의 생장 즉, 엽면적과 잎의 건중량 변화를 조사하였다. 동일 수종에서 연평균기온이 5.5$^{\circ}C$ 낮은 대관령 지역의 것은 남한산성 지역의 것에 비하여 생장의 시작은 10~25일 늦으나 생장이 완료된 시기는 0~20 일 차이를 보였다. 그리고 엽면적과 잎의 건중량은 두 지역이 유사하였으나, 생육초기 비엽면적의 최대치는 기온이 낮은 대관령 지역의 것이 적었다. 동일 개체의 경우, 생장이 거의 완료된 시기의 엽면적과 잎의 건중량은 대부분의 수종에서 매년 일정하였으나 신갈나무, 노린재나무, 개벗나무, 쪽동백 등은 변이가 컸다. 남한산성 지역에서 1992년이 1991년보다 3월 하순과 4월 초순의 일평균기온이 높았고 잎이 이른 시기에 생장을 시작하였으나, 4월 중순의 일평균기온 및 잎의 생장속도는 그 반대이었다.

      • KCI등재

        Growth Properties of Central and Peripheral Ramets in a Zoysia sinicas Clone

        민병미 한국생태학회 2006 Journal of Ecology and Environment Vol.29 No.2

        A natural, tidal-flat clone of Zoysia sinica was studied to compare ramet growth properties incentral area with in peripheral area. In new stolon and rhizome, internode length, weight, shoot height and weight, and spike production were monitored on July 25, 2004. The weight/height rate of shoot between stolon and rhizome, the shoot/stolon (or rhizome) rate in weight between central and peripheral area were not different. differed: 1. The rhizome in central area had a larger node number, shorter internode length, higher shoot height, larger shoot biomass, and higher rate of non-shoot nodes than that in peripheral area. 2. The stolon in central area had a smaller node number, shorter internode length, and smaller biomass than that in peripheral area. 3. In the same area, the rhizome had a larger node number (except for central area), shorter internode, higher shoot height, larger shoot biomass, higher rate of non-shoot node, and higher rate of node having over two shoots than the stolon. No relationship could be found between shoot size and spike production in shoot on vertical rhizome (lower node of old shoot).

      • KCI등재

        Relationship between Phenological Stages and Cumulative Air Temperature in Spring Time at Namsan

        민병미,이동훈,정상진 한국생태학회 2007 Journal of Ecology and Environment Vol.30 No.2

        To certify predictability for the times of phenological stages from cumulative air temperature in springtime, the first times of budding, leafing, flower budding, flowering and deflowering for 14 woody plants were monitored and air temperature was measured from 2005 to 2006 at Namsan. Year day index (YDI) and Nuttonson's Index (Tn) were calculated from daily mean air temperature. Of the 14 woody species, mean coefficient of variation was 0.04 in Robinia pseudo-acacia and 0.09 in Alnus hirsuta. However, mean coefficient of variation was 0.30 in Forsythia koreana and Stephanandra incisa and 0.32 in Zanthoxylum schinifolium. Therefore, the times of each phenological stage could be predicted in the former two species but not in latter three species by two indices. Of the five phenological stages, mean coefficient of variation was the smallest at deflowering time and the largest at budding time. In five phenological stages, mean coefficient of variation of YDI was in the range of 0.11~0.21 but that of Tn was in the range of 0.15~0.26. Therefore, the former was a better index than the latter. Of the species-phenological stage pair, coefficient of variation of YDI was 0.01 in Acer pseudo-sieboldianum - flower budding and below 0.05 in 11 pairs, whereas the YDIs over 0.40 were 4 pairs comprising of Prunus leveilleana - budding (0.51). Coefficient of variation of Tn was 0.01 in A. hirsuta - budding and below 0.05 in 8 pairs. The Tns over 0.40 were 5 pairs comprising of F. koreana - flower budding (0.66)

      • SCOPUSKCI등재

        수 종 목본식물의 화력학적 연구

        민병미,최재규 한국생태학회 1993 Journal of Ecology and Environment Vol.16 No.4

        온대낙엽수림의 수 종 목본식물에서 생육초기의 기온과 개엽시기와 관계를 규명하기 위하여 남한산성과 지역에서 1991, 1992 및 1993년 대관령 지역에서 1992년, 3월부터 5월까지 겨울눈의 파열 시기, 개엽이 완료된 시기, 개화 및 낙화의 시기를 관찰 조사하고 이것을 기상자료와 관련시켜 분석하였다. 남한산성 지역에서 개엽이 이른 종은 신갈나무, 진달래, 개벚나무, 노린재나무 등으로 4월 초순이었으며, 늦은 종은 굴참나무, 떡갈나무, 다릅나무 등으로 4월 하순이었다. 그리고 가장 빠른종인 진달래 (4월 8일)와 가장 늦은 종인 굴참나무, 다릅나무 및 떡갈나무 (5월 4일)의 차이는 27일 이었다. 두 지여간 동일 수종의 개엽시기를 비교하면, 남한산성의 것은 대관령 지역의 것보다 8~24일 빨랐다. 한편, 두 지역간 개화시기의 차이는 0~22일로 개엽시기의것보다 적었다. 겨울눈의 파열시기는 일적사온량지수(YDI)와 관계가 있지만 개엽이 완료되는 시기나 개화시기를 예측하는 데는 YDI보다 Nuttonoson의 온량지수(Tn)가 더욱 유효한 것으로 나타났다. To investigate phenological differences among species, and relationship between phenology and air temperatures, we surveyed foliation and flowering times of several woody plants in two temperate forests, Namhansansung and Taegwallyong area, for three years, 1991, 1992 and 1993. In Namhansansung area, the leaves of Quercus mor~golica, Rhododendron mucronulatum, Prunus levezlleana and Symplocos chinensis for. pilosa expanded in the early season(about 10 April), and those of Quercus variabilis, Quercus dentata and Maackia amurensis in the late season(about 5 May). The foliation time of the earliest species(Rhododendron mucronulatum) was 27 days earlier than thzt of the latest(Maackia amurensis, Quercus variabilis and Quercus dentata). In Taegwallyong area, the leaves of Staphylea bumalda and Rhamnus yoshinoi foliated on 25 April and those of Rhus verniciflua and Fraxinus rhynchophylla on 25 May. The annual mean air temperature of Narnhansansung area was $5.5^{\circ}C$ higher than that of Taegwallyong area. Foliation times of the same species were earlier in the former: the differences between two areas were 8~24 day among species. In contrast, flowering times of the same species were 0~22 days earlier in the former. It is concluded that the budding time of leaves was related to year day index(YDI), and foliation time of leaves was related to Nuttonson's index(Tn).

      • SCOPUSKCI등재

        초식성 곤충유충과 선호 식이식물의 관계

        민병미 한국생태학회 1997 Journal of Ecology and Environment Vol.20 No.3

        Taxa of the herbivorus insect larvae and their foodplant species were surveyed in a temperate forest of Namhansansung Area, Sungnam City, Kyonggi Province, in 1994-1996 growing season, Sixty two taxa of insect larvae fed on leaves of 18 woody species in 11 families during three growing season. Larvae began to be detected from the mid-April when the leafing time began. The number of larvae taxa reached to the maximum value(32 taxa) early in May, 1994. It was the time that the value of specific leaf area reached to the maximum. It decreased up to 3-4 taxa in the mid-June. Taxa of insect larvae were different year by year even in the same season. Most of larvae fed on various plant species, suggesting that they were generalist or polyphagous species. Fagaceae, Betulaceae, Ulmaceae, Rosaceae. Aceraceae, Ericaceae, Oleaceae and Styracaceae were fed on by many taxa of insect larvae, while Euonymus spp. (Celastraceae). Lindera obtusiloba(Lauraceae) and Symplocos chinensis for. pilosa(Symplocaceae) were mainly fed on by a few taxon.. Erannis, Calospilos and Phigalia were observed to feed on various species, but Illiberis, Pryeria and Chalocosia fed on only Rosaceae, Euonymus spp.(Cerastraceae) and Symplocos chinensis for. pilosa(Symplocaceae), respectively. An unidentified larva was observed only on Lindera obtusiloba (Lauraceae).

      • SCOPUSKCI등재

        넓은잎천남성 (Arisaema robustum) 개체군의 동태

        민병미,유진숙 한국생태학회 1998 Journal of Ecology and Environment Vol.21 No.1

        Arisaema robustum, which has the ability to change sex, was studied in a temperate broadleaf forest of Sanseong-ri, Joongbu-myeon, Gwangju-gun, Kyonggi Province, Korea. \ulcornerThe study, carried out from 1993 to 1997, focused on population dynamics energy budget among organs, size distribution, mortality, the relationships between sex and size, seed production and germination rate. In terms of energy budget among the organs, the ratio of aboveground to belowground biomass was 36.6 : 63.4 in non-female plants, and 81.4 : 18.6 in female plants. Also, in female plants, the ration of leaf to sexual organ biomass was 39.5 : 41.9. Therefore, the belowground ratio of female plants was lower than that of non-female plants. Plants were classified into 8 levels relative to the amount of leaf area by $100cm^2$. The rates of the smallest and the largest classes were 49% and 1%, respectively, and population distribution by size was relatively stable. The mortality averaged 13.1% per year and decreased in inverse proportion to leaf size (6.6% in the smallest and 0.0% in the largest size classes). Leaf areas were $64.1{\pm}48.5cm^2$ in non-flowering plants, $232.1{\pm}123.9cm^2$ in males and $444.8{\pm}153.9cm^2$ in females. The increase rates of leaf area per year varied from 1.9% in plants changing from female tomale, to 152.4% in plants changing from non-flowering to female. But plants which remained female for 2 years showed a decrease of 34.7%. >From this result, it is thought that the female plants invest more energy to reproduction than to vegetative organs. The correlation coefficient (CC) value between plant size and the number of seeds produced (0.55) was larger than the CC value between plant size and total seed weight (0.73). That is, the larger the plant size, the heavier the seed produced. The germination rate increased along with seed weight, and it was 95% in plants which were over 60mg fresh weight/seed.

      • KCI등재후보

        Typical Coastal Vegetation of Korea

        민병미,제종길 한국해양과학기술원 2002 Ocean and Polar Research Vol.24 No.1

        It was found that 14 coastal habitats in South Korea have comparetively natural vegetation. The habitats were classified into three types - intertidal flats, sand dunes, and estuaries. There were four inter-tidal flats, five sand dunes and five estuaries. Except for Cynodon dactylon and Tetragonia tetragonoides, all of the main halophytes and sand dune plants were found in the habitats. These two species were mainly distributed on the southern coast. This study identified coastal vegetation, such as pure stands of Suaeda japonica on intertidal flats, mixed halophyte communities around the high-water mark, pure stands of Vitex rotundifolia on stable sand dunes, mixed communities dominated by Carex kobomugi on unstable sand dunes, and pure stands of Phragmites communis in estuaries. The types of coastal vegetation may depend on sediment types, the inundation time of seawater and the stability of sediments.

      • KCI등재

        통보리사초(Cartex kobomugi)의 생육특성

        민병미 한국생태학회 2004 Journal of Ecology and Environment Vol.27 No.1

        해안사구 식물인 통보리사초에 대해 생육 특성을 규명하기 위해 충청남도 태안군 원북면 신두리 해안사구에서 2001년 4월부터 2003년 6월까지 통보리사초의 지상부와 지하부를 조사하였다. 그 결과, 해안사구에서 통보리사초는 갯그령 다음으로 만조선에 가까이 출현하는 식물종이었으며 밀도는 퇴적이 일어나는 지역에서 150개체/m2으로 가장 높았다. 그리고 개화율은 모래 퇴적지역에서 70% 이상을 유지하였으나 안정지역에서는 10% 이내이었다. 따라서 통보리사초는 모래의 퇴적지역에 적응력이 탁월한 식물종으로 나타났다. 그리고 지상부는 대단히 불규칙한 분포를 하였다. 모래의 퇴적지역과 안정지역에서 토양의 깊이별 지하경의 분포를 조사한 결과 전자에서는 깊이별로 큰 차이가 없었으나 후자에서는 대부분 20 ㎝ 이내에 위치하였다. 이러한 결과에 의하면 지하경은 퇴적지역에서는 수직방향으로, 안정지역에서는 수평방향으로 생장하는 것으로 판단할 수 있었다. 새로운 지하경을 발생시킬 수 있는 지하경의 능력은 지표면으로부터 150 ㎝ 이하 혹은 5년 전의 것이었다. 새로 발생하는 지하경의 수와 평균길이는 전년도의 지상부 크기와 관계가 깊었다. 즉, 지상부의 건중량이 0.5 g 미만에서는 1개, 2.0∼2.5 g에서는 2개, 3 g 이상에서는 5개의 지하경을 각각 생산하였다. 한편, 지하경의 길이는 10∼100 ㎝ 범위에 있었으며 전년도 지상부의 건중량이 0.5 g 미만일 경우는 13.0 ㎝이었지만 3 g 이상의 경우 평균 57.6 ㎝로 약 4.4배에 달하였다. To verify growth properties of Carex kobomugi, above and belowground parts of C. kobomugi were surveyed on coastal sand dune at Sinduri, Choongnam Province from April, 2001 to June 2003. The results were the same as follows. In coastal sand dune, C. kobomugi followed Elymus mollis from mean high tide line. Density of C. kobomugi was the highest at unstable sand dune and 150 plants/m2. And rates of flowering plant were 70% at unstable area and 10% at stable area. C. kobomugi is thus plant that adapted to unstable sand dune. Shoot distributed irregularly. The rhizome of C. kobomugi gradually decreased with the soil depth in unstable area, but mainly distributed to 20 ㎝ depth. New rhizome could be generated from the rhizome which was below 150 ㎝ depth or 5 years old. The number and length of new rhizome were related to biomass of previous year's shoot. That was, shoots which were below 0.5 and over 3 g/shoot in dry weight generated 1 and 5 rhizomes, respectively. And the mean lengths of rhizome from small (below 0.5 g) and large (over 3.0 g) shoots were 13.0 ㎝ and 57.6 ㎝, respectively.

      • KCI등재

        조간대 내에서 칠면초(Suaeda japonica) 종자의 분포 및 매토 특성

        민병미 한국생태학회 2005 Journal of Ecology and Environment Vol.28 No.3

        To clarify seed distribution in sediment and its burial properties of Suaeda japonica, the vertical and horizontal distribution of seeds, organic content of sediment, and sediment content delivered by crabs were studied in mud tidal-flat of Walgot-dong, Siheung, Gyeonggi Province, from March 1999 to October 2000. The 94% and 6% of S. japonica seeds were buried under and outside the maternal plant crown, respectively. Organic matter contents of sediment were higher at the area (17%) covered than at the one (8%) uncovered by S. japonica. In the area covered by S. suaeda, organic matter profiles of sediment showed vertical variation from 19% in surface (1 cm depth) to 14% in 6 cm depth. S. japonica seeds buried in sediment decreased from 45% in 2 mm depth to 0% in 12 mm depth. The density of crabs was higher in the vegetated area than in the non-vegetated one. Especially, the density of Cleistostoma was about 8 times higher in the former than in the latter. In the vegetated area, the amount of sediment delivered by crabs was estimated to be 2,409 cm3․m-2, and this could ascend the height of sediment to 2.4 mm. Consequently, it might be interpreted that plant debris (organic matters) of maternal plants and sediment delivered by crabs made the S. japonica seeds bury well. By relationship between crab distribution and vegetation, it was thought that crabs got a benefit from S. japonica.

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