• 식물병연구
• /
• 제28권4호
• /
• pp.248-251
• /
• 2022

2022년 10월 충청남도 예산군(36°40'12.7"N, 126°51'36.4"E)에서 좀돌팥 흰가루병을 조사하였다. 병징은 주로 잎의 앞면에 발생하였으며 뒷면에는 흰가루병이 약하게 발병하였다. 흰가루병의 자낭구는 잎의 뒷면에서 확인하였다. 흰가루병균 무성세대 및 유성세대의 형태적 특징과 더불어 internal transcribed spacer rDNA, 28S large subunit 염기서열을 계통분석한 결과, 흰가루병균은 Podosphaera xanthii로 동정되었다. 이는 한국에서 Podosphaera xanthii에 의한 좀돌팥 흰가루병을 처음으로 보고한다.

• The Korean Journal of Ecology
• /
• 제16권4호
• /
• pp.501-514
• /
• 1993

한반도 남부 지역에 분포하는 아까시나무(Robinia pseudo-acacia L.) 종자의 생태학적 형질 변이를 추적하기 위하여, 북위34$^{\circ}$18'~38$^{\circ}$36'사이에 위치한 15재역 (대진, 속초, 강릉, 수락산, 홍천, 광릉, 남한산성, 충주, 예산, 안동, 전주, 달성, 창원, 목포, 완도)을 선정하여 채종한 종자를 재료로, 발아 및 유식물 생장 실험을 실시하였다. 지역에 따른 발아 최적 온도는 저위도로 갈수록 높아지는 경향을 보여, 25$^{\circ}C$를 최적 온도로 하는 중북부형(대진, 속초, 강릉, 수락산, 홍천, 광릉)과 30$^{\circ}C$가 최적 온도인 중 남부형 (남한산성, 충주, 예산, 안동, 전주), 그리고 35$^{\circ}C$를 최적온도로 하는 남부형(달 성, 창원, 목포, 완도)의 3가지 유형이 식별되었다. 유식물의 신장 생장과 건량 새？에 대한 최적 온도는 모든 지역에서 25$^{\circ}C$로 나타났으나, 온도에 따른 생장 서열에 있어서 는 발아 경향과 유사한 경향을 보여 남부형(달성, 창원, 목포, 완도), 중남부형(남한산 성, 충주, 예산, 안동, 전주) 및 중북부형(대진, 속초, 강릉, 수락산, 홍천, 광릉)의 3가 지 유형이 식별되었다.

• 한국환경생태학회지
• /
• 제28권6호
• /
• pp.705-714
• /
• 2014

본 연구는 이차림 잠재식생 변화의 기초자료로 제공하기 위하여 예산군의 침엽수림과 활엽수림 지상부 (현존식물)와 지하부 (매토종자 발아식물) 식생을 파악하고 비교하였다. 매토종자 발아의 관속식물은 침엽수림이 20과 27속에 딸린 28종 1변종의 29분류군이었고, 활엽수림은 18과 32속에 딸린 34종 2변종의 36분류군이었다. 국화과는 침엽수림과 활엽수림 모두 가장 많이 발아한 매토종자의 식물 집단이었고, 조사구 출현빈도는 침엽수림의 방동사니와 활엽수림의 고들빼기가 높게 나타났다. 토심별 분류군은 침엽수림이 토심 0~10cm, 활엽수림이 토심 0~5cm에서 가장 많았고, 개체수는 침엽수림과 활엽수림 모두 토심 0~2cm에서 가장 많이 나타났으며 토심이 깊을수록 감소하였다. 매토종자의 발아 개체수가 가장 많은 식물은 침엽수림과 활엽수림 모두 고들빼기이었다. 지상부와 지하부의 유사도지수는 평균 0.22로서 낮았으며, 침엽수림과 활엽수림은 유사도지수가 평균 0.40으로서 지상부와 지하부 비교보다 유사성이 높게 나타났다.

• 한국토양비료학회지
• /
• 제51권2호
• /
• pp.101-110
• /
• 2018

There is an increasing concern over arsenic (As) contamination in rice since Codex Committee on Contaminants in Food (CCCF) discuss on maximum levels for As in rice in 2010. This study was conducted to reduce As concentration in rice by soil amendment treatments in paddy field soils contaminated by As. The selected four amendments were poultry manure, agri-lime, steel slag, and gypsum with the addition of 3% or 5% (w/w) on a dry basis. The As reduction effect could not be verified, as a result of the pot test by adding poultry manure to the paddy soil around the mine located in Yesan. Among the agri-lime treated rice cultivated pots, the As concentration increased up to 32.1%. On the other hand, the content of As in the sample pots treated with steel slag and gypsum decreased by 65.4% and 63.4%, respectively. On the basis of the results of these pot experiments, the field test was carried out in the As polluted rice field around the mine located in Yesan, and when the four amendments were treated, the As content in the brown rice reduced in all the amendment treatments compared with the control plot. The As reduction in brown rice of the amendment was confirmed to be higher efficiency by the order of gypsum > steel slag > poultry manure > agri-lime. As a result of pot experiments using paddy soil around the mine located in Seosan, As stabilization efficiency in rice and As reduction effect could not be determined by comparison to the control. From the rice cultivated from agri-lime treated pot, As concentration increased by 15.8% in rice. On the other hand, the As content of the pots treated with steel slag and gypsum decreased by 39.1% and 60.2%, respectively. In conclusion, distinguished As reducing effectiveness could be expected by soil amendment treatments for rice cultivation.

• 농촌계획
• /
• 제20권4호
• /
• pp.77-87
• /
• 2014

Ecotourism has the potential to boost the energy of a village as it pays keen attention to the ecosystem and the residents of the village. It is empowered by participation of and cooperation among stakeholders who are closely involved in ecotourism. However, many of them express difficulty in striking a right balance between development and conservation with regard to promoting ecotourism. Against this backdrop, this research paper investigates the structure of conflict that the stakeholders, especially those in Stork Village in Yesan County, South Chungcheong Province of Korea, experience during the process of establishment of government-led ecotourism. In addition, this study examines the problems of government-led ecotourism model and how they can be addressed. To analyze conflict structure, this paper used Q methods and found out that the budget-related stakeholders are largely divided into four groups as who; a) complain about how business profits are distributed; b) secure profits by expanding programs; c) consider human settlement, and; d) broaden people's participation. The biggest contributor to the conflicts is found that compensation was given discriminately to different jurisdictions. The second finding is that residents became less cooperative when the financial compensation did not live up to their expectation. For instance, they would demand the tourism facility physically expanded, repeatedly complain about the process of the work, and even accuse the government of degrading ecosystem. In other words, unless the compromise is reached with the residents regarding financial compensation, it could be difficult to encourage their participation and develop as a program-oriented tour. Lastly, the tour program needs to induce voluntary participation of the residents and deliver proper information on ecosystem and natural resources so as to last as sustainable ecotourism. The success of ecotourism will be subject to the cooperation of stakeholders in a region, conservation of our fragile ecosystem, and realization of sustainable growth through sharing economic benefits. This study looks into the cause of the conflicts of ecotourism sites and their structure. If this paper can bring about cooperation of stakeholders, the management and operation of ecotourism sites would be more sustainable.

• 한국식품영양과학회지
• /
• 제44권6호
• /
• pp.847-853
• /
• 2015

본 연구는 한국 전통간장을 각기 다른 지역별 옹기에서 숙성시키면서 변화하는 색도, protease 활성과 항산화 활성을 비교하였다. 120일간 지역별 옹기에서 발효한 간장의 색도는 적색도에서만 유의적인 차이를 나타내었다. 간장의 갈색도는 발효가 진행될수록 증가하였으며 발효 120일째 예산 옹기 간장의 갈색도가 가장 높았다. 간장의 protease 활성은 발효하는 동안 지속적으로 증가하였으며 강진 옹기의 간장에서 가장 높았다. 모든 지역 옹기에서 발효된 간장은 발효될수록 총 페놀 함량과 항산화 활성이 증가하였다. 강진 옹기의 간장은 총 페놀 함량(16.6 mg GAE/mL), FRAP(54.3 mg AAE/mL), DPPH 라디칼 소거 활성(43.6%)이 지역별 옹기 중에서 가장 높았다. 갈색도와 항산화 활성과의 상관성은 낮으나 protease 활성과 총 페놀 함량과의 상관은 높았다(R=0.85). 120일 동안 발효된 간장의 항산화 활성, protease 활성, 갈색도, 총 페놀 함량은 지역별 옹기에 따라 차이가 있었다.

• 한국농촌건축학회논문집
• /
• 제21권2호
• /
• pp.19-26
• /
• 2019

Pungsu theory is important one in the site selection and lay-out of traditional Korean village and house. In this aspect, Study with a view of Pungsu theory might be used as a proper method for understanding the traditional architecture in Korea. In this context, this study analyzes the Jeong, Dong-Ho's house which is designated no. 19 as an important folk cultural heritage, located in Jigok Ochu-gil 133-62, Godeok-myon, Yesan-gun, Chungnam province. The analysis of the site and space lay-out is carried out by Yong(Dragon), Hyoel(Auspicious Spot), Sa(Sands), Su(Water) aspects of the Pungsu(Fengshui) Hyungsei-ron. The house is depending upon soft dragon vein connecting with a earth type rear mountain. It looks southeast direction, Gonjwasonhyang(乾坐巽向). The hyeolseong(穴星) has classical venus shape, and there is no faults relatively. The Sasinsa condition is almost perfect that right blue dragon and left white tiger surround the hyeol with 3-4 layers and the facing mountain covers the front open area. The water flowing from inside of left and right mountain is joined in front of the house so it could stop flowing out of vital energy. Bibo forest(裨補樹) is placed properly to protect the easy disclose of water outlet. The house is well organized western house(西四宅) by analysis of Dongseosataek-ron(東西四宅論). Through the analysis, I found that the house has good Pungsu(Fengshui) environment fitted with Pungsu Hyungsei-ron. The house composed of small thatched roof is enclosed several times by low hills of back, left and right side. So it is believed that the site might be carefully evaluated by Yong, Hyoel, Sa, Su of Hyeongsei-ron for knowing whether the site condition could minimize the demage by strong winds and protect from the winter cold wind and secure water for drinking and farming and then selected. The method of Pungsu for evaluating the geographical condition of surrounding of a site is used as a traditional site analysis method for evaluating the suitability of long-term well and safe residence.

• The Plant Pathology Journal
• /
• 제20권4호
• /
• pp.297-301
• /
• 2004

A Tomato spotted wilt virus (TSWV-KP) was isolated from Paprika (Capsicum annuum var. grossum) showing necrosis spot on the leaves and malformation of the fruit in Yesan, Korea. The virus infected Chenopodium amaranticolor, C. quinoa, Petunia hybrida, Nicotiana glutunosa, Gomphrena globosa, and Physalis floridana. Ten plants including tomato were observed to have systemic TWSV-KP infection. The virus produced necrosis or necrotic ring spots on the inoculated leaves and mosaic, vein necrosis or death on the upper leaves of Datura stramonium, N. clevarandii, N. rustica, and N.tabacum cvs. Thin sections of the infected leaf tissue contained spherical to oval particles, a characteristic of a Tospovirus. The virion contained three molecules of genomic RNAs, which were approximately 9.0, 4.9 and 3.0 kb. The nucleocapsid (N) protein of the purified virion migrated as a single band with molecular weight of about 29 kDa in SDS-PAGE. The N gene of TSWV-KP showed 96.5-97.2% and 97.7-98.5% identities to the three different TSWV isolates of Genbank Database at the nucleotide and amino acid, respectively.

• 아시안잔디학회지
• /
• 제6권2호
• /
• pp.113-119
• /
• 1992

전국 70개 골프 코스의 토양통을 정밀토양토에서 판독하여 토양특성을 해석한 결과, 골프장의 토양통 수는 17개이고 대토양군(구분류)은 6매, 대군(신분류)은 8개였다. 대토양군은 적황색토에 50%의 골프코스가 분포하고 암쇄토에는 44%가 분포되었다. 대군은 Dystrochrepts에 74% Eutrochrepts에 8.6% Hapludults에 7.1%가 분포되었다. 주요 토양통은 오산(27.1%), 삼각(18.6%), 예산(11.4%) 송산(8.6%), 대구(7.1%)의 순이었다. 골프장 토양통 17개의 간략한 설명과 5매 주요 토양통과, 주요 대토양군과 대군에 대한 상세한 설명을 제시하여 골프 코스 관리에 참고토록 하였다.

• KIEAE Journal
• /
• 제15권4호
• /
• pp.13-20
• /
• 2015

Purpose: Pungsu is can be seen as an ecological architectural science regarding native natural environment of east asia. Even though the language used in Pungsu is different from that of ecological architecture, Pungsu considered the surrounding environment of the traditional house by various Pungsu method for making and keeping more healthy life and sustainable environment. The research is for finding out how the surrounding natural environment was considered with Pungsu, a traditional ecological architectural science in case of site selection and planning house by the confucian scholar in late Joseon period. Method: Sudan Nam-Gyu Lee's traditional house of Yesan in the middle of korea is selected. The study is processed as follows. The site was analyzed with feature and flow of mountains expressed as dragon in chapter 2 and four important hills around the house are analyzed in chapter 3. Finally Pungsu applied in architectural space is analyzed in chapter 4. Result: we can see that the traditional house of Sudang Lee Nam-Gyu has been planned considering Pungsu in details to minimize the negative factors and utilize the positive factors of nature as much as possible thinking nearby natural environment as environmental factors that can affect the residents of the house through Pungsu.