• Title/Summary/Keyword: Haenam

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A Study on the vulnerability of the agricultural infrastructure based on the product of garlic and onions - Focused on Jeolla-do and Gyeongsang-do - (마늘 및 양파 주산지 농업생산기반시설의 취약성 분석 - 전라도, 경상도를 중심으로 -)

  • Jung, hyunwoo;Paik, sinwon;Kim, hanjoong
    • Journal of Korean Society of Rural Planning
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    • v.23 no.4
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    • pp.143-152
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    • 2017
  • In recent years, the proportion of arable land in the nation has grown from 36.2 percent in 1990 to 43.7 percent in 2013. The study first performed the vulnerability assessment of agricultural production, transportation, processing facilities, agricultural machinery leasing facilities, and water supply facilities. It was developed for the evaluation of the vulnerability of each gun of garlic and onions based on the distance from the three groups of arable bodies to the facility and the processing capacity of facilities. In view of these regional imbalances, the store, distribution and processing facilities in the main stream were found in Haenam, South Jeolla-do, and the relatively low regions of the gun were located in Goheung-gun and Hampyeong-gun. Among other regions, agricultural machinery rental facilities were high in Changnyeong-gun, Haenam, and two regions, while the water supply facilities were high in the southern area of Haenam and South Jeolla-do. The Gyeongsang-do showed relatively high levels of comparison vulnerability index compared to Jeolla-do regions. In particular, through the management plan to improve the facilities needed to improve agricultural production infrastructure, it is necessary to increase the competitiveness of agricultural productuivity through the planning of the need for additional support through the rural readjustment project.

The Amino Acid Content and Antioxidant Activities of Glasswort (Salicornia herbacea L.) (퉁퉁마디의 아미노산함량과 항산화 활성)

  • Kim, Hae-Seop;Park, Jeong-Wook;Lee, Young-Jae;Shin, Gung-Won;Park, In-Bae;Jo, Yeong-Cheol
    • Food Science and Preservation
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    • v.16 no.3
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    • pp.427-434
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    • 2009
  • We collected glasswort (Salicornia herbacea L.) from the Jollanam-do area (Hwangsan-myeon in Haenam, Jeungdo-myeon in Sinan, and Yeomsan-myeon in Yeonggwang) from June to October 2007, and analyzed levels of total amino acids, free amino acids, and total polyphenolic compounds and electron donating ability and SOD-like activity. The total amino acid content was $3,338.75{\sim}4,491.63\;mg$/100 g in the sample from Haenam, $3,086.48{\sim}3,782.89\;mg$/100 g in the sample from Sinan, and $3,134.3{\sim}4,364.17\;mg$/100 g in the sample from Yeonggwang. Proline was the main free amino acid from June through to September, and the level increased during June, the early period of maturation, and then decreased with further ripening. The total content of free amino acids was $472.75{\sim}1,080.98\;mg$/100 g in the sample from Haenam, $440.46{\sim}621.77\;mg$/100 g in the sample from Sinan, and $387.64{\sim}669.28\;mg$/100 g in the sample from Yeonggwan. Total polyphenolic compound level was $11.1{\sim}15.61\;mg/g$ in the sample from Haenam, $12.71{\sim}21.03\;mg/g$ in the sample from Sinan, and $13.13{\sim}22.28\;mg/g$ in the sample from Yeonggwang. Electron donating ability was 53.8.70.9% in the sample from Haenam, $62.7{\sim}88.8%$ in the sample from Sinan, and $63.0{\sim}72.7%$ in the sample from Yeonggwang. SOD-like activity was $28.7{\sim}41.0%$ in the sample from Haenam, 28.5{\sim}36.5% in the sample from Sinan, and 23.5.39.6% in the sample from Yeonggwang.

Oxygen and Hydrogen Isotope Studies of the Hydrothermal Clay Deposits and Surrounded Rocks in the Haenam Area, Southwestern Part of the Korean Peninsula (한국 서남부, 해남지역의 열수 점토광상과 주변암에 대한 산소 및 수소동위원소 연구)

  • Kim, In Joon;Kusakabe, Minoru
    • Economic and Environmental Geology
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    • v.26 no.1
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    • pp.11-20
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    • 1993
  • In the present study, three representative hydrothermal clay deposits, named the Seongsan, Ogmaesan and Haenam deposits, were selected for oxygen and hydrogen isotope studies. Oxygen and hydrogen isotopic compositions of quartz, sericite, alunite and kaolin minerals from Seongsan, Ogmaesan, Haenam deposits and surrounded rocks of clay deposits have been measured. The ${\delta}^{18}O$ values of quartz, kaolin, sericite and alunite in the Seongsan mine are +8.4 to +11.1‰, +3.6 to 5.4‰, +4.8 to +5.8‰ and + 3.0 to +6.6‰, respectively. In the Ogmaesan mine, the ${\delta}^{18}O$ values of quartz, kaolin, sericite and alunite are +8.0 to +13.6‰, +2.8 to +6.7‰, +4.8 to +8.4‰ and +0.9 to +2.4‰, respectively. The ${\delta}^{18}O$ values of the Haenam mine range from +7.9 to +10.1‰ for quartz and from +4.5 to +6.5‰ for sericite. The ${\delta}^{18}O$ values of the whole-rocks range from + 3.0 to + 7.8‰ for the granitic rocks. The ${\delta}^{18}O$ values of the whole-rocks range from + 3.2 to + 10.7‰ for the volcanic rocks. The 8D values of kaolin, sericite and alunite in the Seongsan mine are -78 to -86‰, -71 to -90‰ and -43 to -77‰, respectively. In the Ogmaesan mine, the ${\delta}D$ values of kaolin, sericite and alunite are -73 to -80‰, -74 to -88‰ and -57 to -98‰, respectively. The ${\delta}D$ values of the Haenam mine range from -76 to -85‰ for sericite. The ${\delta}D$ values of the whole-rocks range from -77 to -105‰ for the granitic rocks. The ${\delta}D$ values of the wholerocks range from -76 to -100‰ for the volcanic rocks. The main result obtained oxygen and hydrogen isotope data can lead to the following interpretations on the origin of hydrothermal fluids in the clay deposits: Through the oxygen isotopic study, the formation temperature of the clay deposits was estimated from the coexisting minerals such as quartz-kaolin minerals and -sericite. Formation temperature of the acidic alteration zone is 165 to $280^{\circ}C$ in the Seongsan deposits, 175 to $250^{\circ}C$ in the Ogmaesan deposits and 250 to $350^{\circ}C$ in the Haenam deposits. Three clay deposits has been formed by magmatic water mixed with meteoric water. Furthermore, from this isotopic data, it is clarified that kaolin minerals and alunite are hypogene in origin, and has been formed by oxidation of hydrogen sulfide in the steam-heated environment, and that alunite has been produced in the spectacular solfataric alteration observed at the surface of some present-day hydrothermal systems. Oxidation of the $H_2S$ is thought to be generated when the vapor phase generated by boiling of the deep-seated water under the water table.

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Regional Early Growth Performances of Planted Chamaecyparis obtusa Seedlings in Relation to Site Properties (편백 조림목의 입지 특성에 따른 지역별 초기 생육 특성)

  • Yang, A-Ram;Hwang, Jaehong;Cho, Min Seok
    • Journal of Korean Society of Forest Science
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    • v.103 no.3
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    • pp.375-382
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    • 2014
  • The objective of this study was to investigate suitable plantation site for planted Chamaecyparis obtusa seedlings from the analysis of regional early growth performances. Two years old C. obtusa seedlings were planted with the density of $3,900seedlings{\cdot}ha^{-1}$ in late March, 2011 at Haeman and Jangseong, Jeollanamdo. In each study site, three plots ($400m^2$ per plot) were established and root collar diameter (mm) and tree height (cm) of each C. obtusa were measured in April, 2011 and October from 2011 to 2013. We also analyzed soil physical and chemical properties of sites and compartmental nitrogen and phosphorus concentrations of C. obtusa. Although the concentrations of soil nitrogen, organic matter, and C.E.C. at Haenam site were higher than those at Jangseong site, early growth performances of planted C. obtusa at Jangseong site were significantly better than those at Haenam site. The reasons for these results were probably related to deep available soil depth at Jangseong site and relatively low annual precipitation and sea wind at Haenam site, which was adjacent to the sea. The compartmental nitrogen and phosphorus concentrations of C. obtusa was in the order of needles > current twigs > fine root > stem and branches root above 2 mm in diameter. The phosphorus concentration of needles at Haenam site was significantly higher than that at Jangseong site. The results of this study might be useful for the selection of suitable plantation site for C. obtusa.

Laxative Activity of the Hot-Water Extract Mixture of Hovenia dulcis Thunb. and Phyllostachys pubescens Mazel in Chronic Constipation Model SD Rats

  • Oh, Kyo-Nyeo;Kim, Yujin;Choi, Eun Jin;Lee, Hyunmi;Hong, Ji Ae;Kim, Miri;Oh, Dool-Ri;Jung, Myung-A;Park, Ro-Dong;Kim, Seong-il;Yong, Ju-seon;Lee, Hui-Seop;Ban, SangOh;Choi, Chul-yung
    • Journal of Microbiology and Biotechnology
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    • v.30 no.5
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    • pp.649-661
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    • 2020
  • This study examined the laxative effects of hot-water extracts of Hovenia dulcis Thunb. (HD), Phyllostachys pubescens Mazel (PM), and a 2:8 mixture of both (HP) in two chronic constipation models. For the loperamide-induced constipation model, animals were divided into an untreated group, negative control group (loperamide 4 mg/kg), positive control group (bisacodyl 4 mg/kg) group, and six treatment groups (HP 100 or 400, HD 50 or 100, and PM 100 or 400 mg/kg). For the low-fiber diet-induced constipation model, animals were divided into an untreated group (normal diet), negative control group (low-fiber diet), positive control group (Agio granule, 620 mg/kg), and the same treatment groups. Fecal number, weight, fecal water content, and intestinal transit ratio were higher in the groups treated with HP, HD, and PM than in the groups treated with loperamide or low-fiber diet. Thickness of colon mucosa and muscle layers were increased in the treated groups. Colon tension increased in the HP groups, and [Ca2+]i measurements using fura-2 as an indicator showed that HP inhibits ATP-mediated Ca2+ influx in IEC-18 cells. These results showed that the HP mixture has laxative activity by increased mucin secretion and inducing contractile activity and relaxation. It may be a useful therapeutic strategy for ameliorating in chronic constipation.

Phylogenetic analysis of Locusta migratoria (Orthoptera: Acridae) in Haenam-gun, Jeollanam-do, Korea using Two Mitochondrial Genes (마이토콘드리아 유전자 2개를 이용한 대한민국 전라남도 해남군 발생 풀무치 Locusta migratoria (메뚜기목: 메뚜기과)의 계통분석)

  • Kim, Young-Ha;Jung, Jin-Kyo;Lee, Gwan-Seok;Koh, Young-Ho
    • Korean journal of applied entomology
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    • v.55 no.4
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    • pp.459-464
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    • 2016
  • An outbreak of the migratory locust, Locusta migratoria, in the environment-friendly reclaimed plantations of forage crops in Sanyimyeon, Haenam-gun, Jellanam-do, Korea in August 2014 caused severe damages to various crops. Owing to its first occurrence in the Korean history, the causes underlying the outbreak and phase-transition of the migratory locust were not known. It is critical to establish the genetic relationship of the migratory locust in Sanyimyeon, Haenam-gun with the other previously reported strains in the world in order to understand the mechanisms responsible for its outbreak. The gene sequences of the 16S ribosomal RNA (rRNA) and displacement-loop (D-loop) of the mitochondria of various regional species of the migratory locust were used to perform the phylogenetic analysis. Our results suggested that the migratory locusts in Sanyimyeon, Haenam-gun are closely related with the Eurasian strains of the northern lineage. In future, these two mitochondrial genes can be used for elucidating the genetic population structures in migratory locusts in various regions. In addition, the sequence information of these genes can be used to enhance our understanding of the genetic basis of the outbreak of migratory locusts.

Infection status with the metacercariae of heterophyid flukes in the brackishwater fish from Haenam-gun, Chollanam-do, Korea (전남 해남군산 반염수어의 이형흡충류 피낭유충 감염상)

  • 손운목;한경근
    • Parasites, Hosts and Diseases
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    • v.32 no.3
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    • pp.163-170
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    • 1994
  • An epidemiological survey was performed to know the infection status of heterophyid fluke metacercariae in the brackish water fishes purchased from a local market in Haenam-gun, Chollanam-do, Korea from November to December, 1991. A total 20 out of 30 shads (Konosiw punctatus) examined were infected with the metacercariae of H. continua (average number of larvae per an infected fish: 2.71). Of 20 perches (Lateolabroxjoponicurs), 19 were Infected with the metacercariae of H. continua (average number per an infected fish: 17.21. Of 30 mullets (Mugil cepholus) examined, 11 were Infected with the metacercariae of H. nocens (average number per an Infected fish: 51.5), 10 mullets harboured 31 and 349 metacercariae of f summa and 5. lucatum respectively. Of 30 gobies (Acnnthogobin jlcvimonus) examined, 3 were infEcted with the metacercariae of H. nucens (average number per an Infected fish: 32.0), 8 with those of H. continua (average number per an infected flesh: 12.6) and 3 with those of 5. JuscntuwL From the above results, It has been confirmed that the brackish water Ash from Haenam-gun, Chollanam-do are infected with numerous metacercarlae of H. nocens, H. continua, P. summo and S. fuscatum.

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Physicochemical properties and sintering behavior of pottery stone as a raw material in porcelain products (국내 도석 광물의 물리화학적 물성 및 도자기 원료로서 소결 특성 평가)

  • Kim, Jong-Young;Kim, Ung-Soo;Hwang, Kwang-Taek
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.29 no.5
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    • pp.192-202
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    • 2019
  • Physicochemical properties and sintering characteristics of pottery stone (Taebaek, Haenam, Aphae, Haengnam) were evaluated as a raw material for porcelain products. Due to acid leaching procedure, the concentration of iron oxide ($Fe_2O_3$) was decreased to < 1.0 wt%, which affects the whiteness of sintered samples. Mean particle size of acid leached samples is $5.7{\sim}10{\mu}m$ with narrow particle size distribution (PSD), which is lower than that of the pristine ($8{\sim}18{\mu}m$) with broad PSD. According to phase analysis by X-ray diffraction, most of pottery stones (PS) have Quartz phase as a main phase with Pyrophyllite as a second phase, however, Haenam PS shows halloysite phase. The absorption rate was in order of Taebaek (A, B, C)~Aphae (A, B) < Taebaek (Special A) < Haengnam < Haenam, and the samples sintered in reductive atmosphere showed lower absorption rate. This result might be due to the concentration of feldspar contained in PS, working as a flux in sintering process. Comparing the color of the sintered samples, the whiteness of refined PS (Taebaek special A, Haenam, Hangnam) is higher than acid leached PS (Taebaek A/B/C, Aphae A/B). The whiteness (L*) for refined PS is 95~97 %, which is higher than acid leached (82~96 %). This might be due to lower iron oxide concentration of the refined PS (0.11~0.58 %) than those of the acid leached PS (0.41~1.91 %) even though most of iron oxide was removed by acid leaching.