• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.77-77
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• 2019

본 연구는 DMZ일원에서 생육하고 있는 자생식물에 대하여 우선순위를 설정하고, DMZ일원 종다양성의 지속적인 건강성 유지 및 보전을 위한 중장기 모니터링 기술을 개발하기 위하여 중점관리종을 선정하고자 하였다. 또한, 이를 토대로 DMZ지역과 북방계지역에 대한 생물자원을 연구할 수 있는 기본틀을 마련하고 생물권보전지역을 지정함으로써 국제교류 및 이해에 기여하는 연구를 수행하였다. 현재 DMZ일원의 관속식물상은 157과 754속 2,047종 12아종 340변종 105품종 총 2,504분류군이 생육하고 있다. 이 중 희귀식물은 총 285분류군, 특산식물은 총 124분류군, 침입외래식물은 130분류군이 분포하고 있다. 전체 2,504분류군 중 희귀식물, 특산식물, 침입외래식물을 대상으로 전국분포정보 및 DMZ일원 분포정보를 수집하였다. 이를 토대로 희귀 특산식물에 해당하는 보호종 선정을 위한 평가지표는 IUCN 적색목록기준 의 국내수준 및 DMZ일원의 희귀 특산식물의 등급을 CR종 3점, EN종 2점 VU종 1점으로 점수를 평가한 뒤 국내 분포 지역수(IUCN red list criteria B)에 대한 가중치를 적용하여 보호우선순위를(I$10,576.9km^2$) 대비 종 분포면적의 0~20% 1점, 21~40% 1.5점, 41~60% 2점, 61~80% 2.5점, 81~100% 3점으로 분포등급을 평가한 뒤 생태교란종(14분류군) 및 산림침입종(181분류군)에 대한 가중치를 적용하여 관리우선순위를(I

• 수목보호
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• s.10
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• pp.34-40
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• 2005

• Ecology and Resilient Infrastructure
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• v.10 no.3
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• pp.51-63
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• 2023

Riverine tree management is crucial in realizing a balance between flood control and ecological preservation, which requires an accurate assessment of the impact of trees on river water elevations. In this study, eight different formulas for evaluating vegetation roughness considering the drag force acting on trees, were reviewed, and the characteristics and applicability of these methods were evaluated from a practical engineering perspective. The study compared the characteristics of vegetation roughness measurement methods for calculated roughness coefficients at different water depths and analyzed factors such as effects of tree canopy width, tree density and diameter, and tree stiffness coefficient, and water level estimation results. A comparison of roughness coefficients at the same water depths revealed that the Kouwen and Fathi-Moghadam formulas and the Fischenich formula yield excessive drag coefficients compared to other formulas. Factors such as channel geometry, tree diameter, and tree density showed varying trends depending on the formula but did not exhibit excessive outliers. Formulas considering the tree stiffness coefficient, such as the Freeman et al.'s formula and the Whittaker et al.'s formula, showed significant variations in drag coefficients depending on the stiffness coefficient. When applied to small- and medium-sized virtual rivers in South Korea using the drag coefficient results from the eight formulas, the results indicated a maximum increase in water level of approximately 0.2 to 0.4 meters. Based on this review, it was concluded that the Baptist et al., Huthoff et al., Cheng, Luhar, and Nepf's formulas, which exhibit similar characteristics and low input data uncertainties, are suitable for practical engineering applications.

• Journal of Environmental Impact Assessment
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• v.32 no.1
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• pp.41-48
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• 2023

This study was conducted to confirm the possibility of a new carbon stock in the Sejong National Arboretum, a major urban greenspace in Sejong-si. This study involved field and ground surveys of 1,336 trees, including 794 Pinus densiflora trees with a diameter at breast height (DBH) of above 5.5cm, which are the most planted in the Sejong National Arboretum, Chionanthus retusus 154 trees planted, Metasequoia glyptostroboides 216 trees, and Aesculus turbinata 172 trees as street trees. Measurements were performed from April to November. Based on the results of the survey, the carbon storage and annual carbon stock were calculated using the annual carbon stock estimation equation used in the forest carbon offset projects. As a result of comparing the carbon stock of the 12cm diameter class, which is the most distributed of four major trees, it was found in the order of C. retusus (0.0136tC/tree), P. densiflora (0.0126tC/tree), M. glyptostroboides (0.0092tC/tree), and A. turbinata (0.0076tC/tree). In addition, the field survey measurement data compared with terrestrial LiDAR measurement data for 20 trees showed a difference of 10.0cm in tree height and 1.7cm in diameter at breast height (p<0.05). In the future, additional carbon stock and annual uptake of other species planted in the arboretum are expected to promote the carbon uptake effect of the arboretum and contribute to the achievement of the national NDC. In the long term, it is also necessary to develop the carbon uptake factor of trees and shrubs mainly used to calculate the exact carbon uptake amount of trees mainly used in urban forests and gardens.

• Journal of Korean Society of Forest Science
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• v.111 no.4
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• pp.538-547
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• 2022

In this study, the population and community structure of Berchemia berchemiaefolia stands located at Mt. Naeyon (Gyeongbuk, Korea) were quantified, and multivariate analysis was done to determine the correlations between vegetation group types and environmental factors and to have reference data for the conservation and restoration of this species. In total, there were 164 B. berchemiaefolia trees in Mt. Naeyon. The average DBH of the trees was 24.5 cm, forming a normal distribution. It rarely appeared in an understory vegetation height of 3 m. About37.1% of the trees were branched. B. berchemiaefolia stands were classified into two groups: B. berchemiaefolia-Quercus serrata community and B. berchemiaefolia-Carpinus laxiflora community. Canopy gap, organic matter, exchangeable Ca, and cation exchange capacity were the major site characteristics affecting the distribution pattern of the stands. Currently, B. berchemiaefolia trees dominate in Mt. Naeyon, but depending on different habitat positions, the species was in a natural successional stage to C. laxiflora or C. cordata, which is a shade-tolerant species.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.37 no.1
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• pp.33-40
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• 2019

The purpose of this study is to analyze historical records of what the trees had been planted like by establishment and management of the Royal Tombs of the Joseon Dynasty so that it could be utilized for historical records to manage the trees in the Royal Tombs. The research method was to analyze the related keywords for 40 trees out of 42 trees in the Royal Tombs of the Joseon Dynasty reffering to "The Annals of the Joseon Dynasty(朝鮮王朝實錄)," and "Neungji(陵誌)". There are two types of planting called Jeongsik(定植) Bosik(補植) in the Royal Tombs. Jeongsik(定植) is a planting method by Salleungdogam(山陵都監), the office in charge of construction of the royal tomb when they were building the royal tomb. Every tree additionally planted after building up the royal tomb was called Bosik(補植). The types of tree planting the composition and management of the royal tombs of Joseon are as follows. First, the first planting for landscaping was carried out during the process of building the province. Second, after the formation of Shanung, all the plants were planted by Wangmyung as additional plants. Third, due to the deforestation in the late Joseon period, additional plants were planted in the fertile plains. Fourth, trees were damaged due to natural disasters, and trees were planted together with the construction of the botanical gardens. Fifth, in the 22nd year of King Jeongjo, all the royal families' graves were regularly planted. This study aims to investigate the history of forest landscape management for the restoration of the royal tombs of Joseon.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2023.04a
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• pp.10-10
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• 2023

투구꽃속(Aconitum L.)은 미나리아재비과(Ranunculaceae)의 가장 큰 속(Genus) 중 하나로 300-400 여종(Species)이 북반구 온대지역에 분포한다(Tamura, 1993). 둥근 투구모양의 꽃받침이 특징적이며, aconitine과 같은 알칼로이드 성분을 함유하고 있어 전통적으로 약용소재로서 활용되었다(Khorana, 1968). 세뿔투구꽃(Aconitum austrokoreense Koidz.)은 한국 경상도, 전라남도에만 국지적으로 자라는 한국 특산식물이자, IUCN에서 CR(Critical Endangered) 등급으로 지정된 희귀식물이다. 이 종은 다년생이지만, 서식지에서 개체수가 적거나 유묘의 발견이 어려운 등 자생지 축소 및 절멸의 우려가 높다. 세뿔투구꽃을 보호하고 종을 보존하기 위해서는 종자 발아 · 휴면에 대한 지속적 연구와 종자번식법의 개발이 필요하다. 본 연구에서는 세뿔투구꽃의 종자의 휴면유형을 분석하고 호르몬에 의해 휴면타파를 유도하였으며, 특히 발아 2단계에서 일어나는 생리적 변화를 단백질체학적 관점에서 분석하였다. 세뿔투구꽃 종자는 미발달된 배를 가지고 있으며, 충분한 수분과 온도의 조건에서도 발아가 관찰되지 않아 형태 · 생리적 휴면으로 판단되었다. 종자는 BAP 처리에서 휴면이 타파되는 것을 확인하였으며, 특히 BAP 농도에 따른 발아율은 통계적으로 유의한 값을 가졌다 (F=23.208, P<0.01). 건조된 종자에 비해 BAP 처리된 종자는 발아 2단계에서 몇가지 단백질의 증가가 관찰되었다. 대부분의 종자는 30S ribosomal protein subunit으로, 휴면상태에서 발아상태로 변환이 일루어지는 생리적 변화의 증거로 확인된다. 특히 발아2단계를 지나는 세뿔투구꽃 종자에서는 cytochrome subunit과 photosystem II protein의 급격한 증가가 관찰되었는데, 이는 배아의 발달 결과인 자엽이 발아 즉시 광합성이 가능하도록 준비하는 과정에서 발현 된 것으로 추정한다. 본 연구는 발아2단계에서 휴면타파에 직접적인 영향을 미치는 요인을 발견하지 못하였으나, 휴면타파에 중요한 단계인 발아 2단계 종자의 생리학적 변화를 이해하기 위한 기초자료로 활용 될 수 있을 것이다.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.1
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• pp.132-138
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• 2015

Trees, cultivated in containers, are appropriate in soil deformation such as road sites with cutting and filling. This study tested the effectiveness of trees produced in containers for early rootage in street tree transplantation. For the study, Korean Mountain Ashes(Sorbus alnifolia) were used for experimental groups. The groups were categorized into three categories: trees cultivated in containers with mulching treatment(group A), trees cultivated outdoors with mulching treatment (group B), and trees cultivated in containers with weeding treatment(group C). Each group consisted of ten trees of the same size and transplanted to the experimental site. In order to compare each group's rootage, the study was carried out with the chlorophyll fluorescence method by the analysis of photochemical reaction. As a result of the study, group B had the lowest the maximum fluorescence amount(P). The amount of fluorescence increased by OJ transition of the process, and appeared to reduce the photosystem II electron transport efficiency. In photosystem II, electron transfer energy flux through photosystem I(RE1o/RC, RE1o/CS) was also reduced by more than 20% in group B. These results may imply that transplantation of container-cultivated trees with mulching treatment provides the most rapid rootage among the groups. The weeding treatment is also more effective than mulching treatment for rapid rootage of street trees.

• Landscaping Tree
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• s.128
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• pp.44-47
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• 2012

수목은 이식 후 여러 원인에 의해 수분스트레스를 받게 된다. 특히 성토지역이거나 상식(上植)하여 식재된 경우 수분스트레스가 심하게 나타나게 된다. 식재상황별 수분스트레스 원인을 살펴보면 다음과 같다.

• Journal of Korean Society of Forest Science
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• v.98 no.6
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• pp.703-711
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• 2009

This study was conducted to suggest to establish more effective and differential management strategy of arboretum, through the analysis and comparison between arboretum and representative forest recreational sites. The data was collected through questionnaire at the six fields of forest recreational sites in Daegu and Gyeongsangbuk-do, 447 people who visited these forest recreational sites took part in the questionnaire. As the result of this research, arboretum was positively evaluated by the six strengths from the participants; natural area, experiences and observation activity, conservation of natural environment, promotion of health, reasonable charge of use and a lot of things to see and do. But there is the need for arboretum to develop characteristic rest culture and raise efficiency because arboretum is in keen competition with recreation forests and national parks by several characteristics.