• 원예과학기술지
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• 제33권5호
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• pp.638-646
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• 2015

본 연구는 자원식물 종자의 유용성을 증대시키는 방법의 하나로 쑥부쟁이속 6종(가새쑥부쟁이, 눈개쑥부쟁이, 벌개미취, 참취, 해국, 쑥부쟁이) 새싹채소의 최적 생산방법을 개발하고자 수행되었다. 적정 발아조건 구명은 온도(15, 20, 25, $30^{\circ}C$) 및 광조건을 달리하여 종자를 파종한 다음 발아율 조사를 실시하였다. 이후 길이생장 기간은 온도(15, 20, 25, $30^{\circ}C$)를 달리하여 암조건에서 10일간 진행하였다. 적정 녹화기간을 알아보기 위하여 최적의 발아조건과 길이생장 기간 동안 재배한 유묘를 0-3일간 광조건에서 재배하였다. 저장환경 및 기간을 알아보기 위해 최적조건에서 재배한 새싹 채소를 통기구가 있는 용기와 밀폐 용기에 각각 넣은 다음 $4^{\circ}C$와 $10^{\circ}C$에서 저장하였다. 연구의 결과, 종자는 발아율 조사를 통해 12일 이내에 50% 이상 발아하는 것을 선발하였다. 길이생장은 $20-25^{\circ}C$에서 생육이 우수하였고 최적의 재배기간은 7-9일로 구명되었다. 녹화기간이 길어질수록 길이생장은 지체되었으나, 하배축의 부피생장 및 떡잎의 생육이 왕성해지는 경향을 보였다. 여러 가지 요인을 고려하였을 때, 2일간의 녹화처리가 가장 좋을 것으로 생각되었다. 저장성 실험은 $4^{\circ}C$에서 저장한 밀폐 용기에서 저장성이 좋았으며 부패는 환기에 의해 방지되었으나, 수분함량이 감소하였다. 모든 새싹채소는 $4^{\circ}C$에서 3-6일간 신선도를 유지하였으며, 특히 눈개쑥부쟁이와 쑥부쟁이는 높은 저장성을 가져 $10^{\circ}C$에서도 3일 이상 저장이 가능하였다.

• 환경위생공학
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• 제5권1호
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• pp.63-88
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• 1990

1980년 7월부터 1981년 12월까지 20회에 걸쳐 전라남도 도립공원인 조계산의 식물상을 조사한 결과는 다음과 같다. 조사지에서의 식물은 총 122과, 424속, 597종 107변종, 10품종이었으며, 식용식물이 204종, 약용식물이 199종 기타 유료섬유자원식물이 30종으로 나타났다. 상록활엽수는 차나무, 조릿대, 붉가시나무 등 22종이고 상록침엽수는 비자나무, 소나무, 금송, 편백나무 등 15종이었다. 식물군락은 참나무류와 서어나무, 조릿대 등 활엽수림으로 우점종은 조록싸리, 덜꿩나무, 물푸레나무, 가막살나무, 개옻나무, 느티나무 등이고 초본류는 참억새, 그령, 지리대사초, 새이삭여뀌, 갈퀴나물, 밀나물, 쑥부쟁이 등이 군락을 이루고 있었다. 조계산에서 선암사지구는 식생이 양호하였으나 타지역은 식물상이 많이 파괴되었으며 굴목치지구는 산화의 피해를 많이 받은 지역으로 산화에 비교적 강한 참나무류가 우점종이었다. 특징 수종은 털조장나무, 박쥐나무, 대팻집나무, 히어리, 노목인 자귀나무, 고로쇠나무, 차나무 군락, 노각나무, 흰말채나무 종이며, 초본으로는 관엽식물인 족제비고사리, 꼬리고사리, 거미고사리, 일엽초 등과 천마, 보춘화, 새이삭여뀌군락 등은 부호가 요망된다. 조계산의 소나무림은 1650~1963년 인력에 의해 대채되었던것이 복구되지 못하여 조계산을 중심으로 접치지구와 오두치지구의 700m이상 지역은 거의 무송림지역으로 되어 있었다.

• 한국환경복원기술학회지
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• 제19권1호
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• pp.61-71
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• 2016

The purpose of the research is to identify the optimal seeding quantity of Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria as leguminous woody plants for the cut-slope revegetation. To investigate the coverage ratio and appearance frequency, we divided Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria into five treatment groups with various quantities of $0.0g/m^2$, $1.0g/m^2$, $2.4g/m^2$, $3.8g/m^2$, and $5.2g/m^2$. For each treatment group, we mixed the identical quantities of herbaceous flowers (Lotus corniculatus var. japonicus, Dianthus sinensis, Aster yomena and Pennisetum alopecuroides) seeds and cool-season turfgrasses (Festuca arundinacea and Poa pratensis) seeds. In this result, as the seeding quantity of Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria increased in the spray, the coverage ratio for leguminous woody plants appeared to increase whereas the coverage ratio decreased in herbaceous flowers and cool-season turfgrasses. However, when the seeding quantity of Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria exceeded $3.8g/m^2$ in the spray, the coverage ratio of leguminous woody plants rather decreased compared to four treatment groups less than $3.8g/m^2$ seeding ratio. Based on the longitudinal data of coverage ratio in five treatment groups, we observed the gradual process of a short-term succession in which the dominant species shifted in the following order: First, cool-season turfgrasses; Second, herbaceous flowers; Third, leguminous woody plants. Comparing the appearance frequency of Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria, Lespedeza cyrtobotrya appeared more frequent in 2014 whereas Indigofera pseudo-tinctoria appeared to be relatively more frequent in 2015. As a result, Indigofera pseudo-tinctoria was discovered to be a dominant species among woody plants. In this study, we observed that the optimal seeding quantity of Lespedeza cyrtobotrya and Indigofera pseudo-tinctoria was $2.4g/m^2{\sim}3.8g/m^2$. Moreover, the coverage ratio of 29.1%~35.4% and appearance frequency of 4.6plants~5.8plants were found in the condition of optimal seeding quantity.

• 한국환경복원기술학회지
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• 제18권3호
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• pp.97-107
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• 2015

Research was initiated to investigate a vegetation characteristics of the species of ground cover plants mixed with herbeceous and woody plants on a cut slope. 4 different ground cover plants (Miscanthus sinensis var. purpurascens, Pennisetum alopecuroides, Festuca arundinacea and Zoysia japonica) were seeded at the same rate of $10.0g/m^2$ with herbaceous plants (Lotus corniculatus var. japonicus, Dianthus sinensis, Aster yomena, Chrysanthemum zawadskii and Coreopsis drummondii L) at the total seeding rate of $7.5g/m^2$ and native woody plants (Lespedeza bicolor Turcz, Indigofera pseudo-tinctoria and Albizzia julibrissin) at the total seeding rate of $7.5g/m^2$, respectively. This experiment was treated with 3 replications on a randomized block design. Data such as surface coverage rate(%), the germinating number, plant height and visual quality were analyzed. There were no statistic differences observed in the soil hardness and the soil moisture content while a significant difference was observed in the surface coverage rate and the germinating number. The surface coverage rate and the germinating number were significantly high in the Pennisetum alopecuroides plot when compared with the Miscanthus sinensis var. purpurascens plot, the Festuca arundinacea plot and the Zoysia japonica plot, respectively from the viewpoint of ground covers. Especially, the surface coverage rate was considerably low in the Festuca arundinacea plot. However, the surface coverage rate and the germinating number were no statistic differences observed in this treatment from the viewpoint of herbaceous and woody plants. Also, both of the plant height and visual quality were high in the Pennisetum alopecuroides plot when compared with the Miscanthus sinensis var. purpurascens plot, the Festuca arundinacea plot and the Zoysia japonica plot, respectively. We concluded that Pennisetum alopecuroides was the optimum plant from the treated ground covers mixed with native woody and herbaceous plants for the balanced emergence from the viewpoint of the ecological slope vegetation.

• 한국환경복원기술학회지
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• 제15권4호
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• pp.119-132
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• 2012

The unmanaged abandoned concrete roads are vulnerable toward the issues on soil and water pollution, which requires flexible managing method such as eco-corridor after the process of ecological restoration. Among various alternations of abandoned concrete-paved roads, ecological restoration technique may be the most suitable method in sites including high quality of natural environment. Therefore, as in Young dong province, GyungBu express highway (227.24~229.04km), which is near to Hwang-gan IC, the survey to measure its effect of soil under the paving and water pollution by abandoned concrete roads was discussed. Then, the restoration method of plantings of landscape trees and hydro-seeding methods of artificial soil media was appraised through consecutive monitoring. The soil adequacy analysis shows lower percentage of heavy metal substance in each depth level compared to standard limit stated by the Ministry of Environment, along with low concerns raised after the analysis on heavy metal content of the spilled water on the concrete roads. Meanwhile, Korean Weigela (Weigela subsessilis L.H. Baily) was found to be withered in small-scale landscape trees planting sites. Among the seeding plants. the family of leguminosae, Silene armeria, Dendranthema boreale, Caryopteris incana and Aster yomena show good establishment results. Overall studies on planting of small and large landscape trees, planting method of container plants, planting method of ground cover plants, and germination and development trend of seeding plants of the experimental restoration site on abandoned concrete roads are revealing specific trends in the way landscape woody plants establishment and growth. Finally, this study suggests further studies and survey on varied plant restoration methods on abandoned concrete-roads for developed design guidelines of their methods.

• 한국환경과학회지
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• 제28권11호
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• pp.907-915
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• 2019

This study aims to identify the most tolerant species under salinity stress from amongst Asteraceae and Poaceae. The seeds of six species were exposed to different concentrations of $CaCl_2$ (0, 9, 18, 45, 90 mM) and NaCl (0, 17, 34, 85, 170 mM), and germination was measured once every two days. The results indicated that percent germination of the six species of Asteraceae and Poaceae seeds were affected differently by changes in salinity concentration. Seed germination was reduced as salinity levels increase, and longer mean germination times correlated to lower percent germination and earlier germination cessation. Both Asteraceae and Poaceae seeds had the highest germination rates at 18 mM $CaCl_2$ and 34 mM NaCl, and seed germination and growth were severely reduced at salinities greater than 90 mM $CaCl_2$ and 170 mM NaCl. In the seeds of Poaceae, salt resistance was strong in the order of Miscanthus sinensis Andersson, Pennisetum alopecuroides (L.) Spreng., and Phragmites communis Trin. In the seeds of Asteraceae, salt resistance was strong in the order of Dendranthema zawadskii var. latilobum (Maxim.) Kitam, Aster yomena (Kitam.) Honda, and Dendranthema boreale (Makino) Ling ex Kitam.. Overall, the germination rate was higher in Asteraceae than in Poaceae. This study demonstrated that Dendranthema zawadskii var. latilobum (Maxim.) Kitam. is the most tolerant species and that a relationship exists between the salt tolerance of percent germination and the mean germination time in the leaves.