• Title/Summary/Keyword: 국립대학교

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Analysis of Climate and Topographical Factors of Economical Forests in Korea to Select the Restoration Safe Site of 5 Dominant Oak Species (참나무 5종의 생태 복원 적지 추정을 위한 경제림 육성단지의 기후와 입지 요인 분석)

  • Lee, Seung-Yeon;Kim, Eui-Joo;Lee, Eung-Pill;Cho, Kyu-Tae;Park, Jae-Hoon;Lee, Young-Keun;Chung, Sang-Hoon;Hong, Yong-Sik;Park, Jin-Hee;Choi, Seung-Se;Kim, Hae-Ran;You, Young-Han
    • Korean Journal of Ecology and Environment
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    • v.53 no.4
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    • pp.427-435
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    • 2020

  • The most important thing to successfully restore an oak forest is finding suitable climatic conditions and topographic factors for the oak species to be introduced. In this study, in order to find suitable environmental conditions for the five dominant oak trees on the Korean Peninsula, we carried out analysing the information on the location of forest vegetation on the Korean Peninsula. The range of annual mean temperature of the five oak trees was narrow in the order of Q. mongolica (7.7~14.3℃), Q. variabilis (9.2~13.8℃), Q. acutissima (10.5~14.3℃), Q. serrata (11.4~13.7℃), Q. aliena (11.0~12.9℃). The range of annual precipitation of oaks was narrow in order of Q. mongolica (1072.7~1780.9 mm), Q. variablis (1066.6~1554.9 mm), Q. acustissima (1036.5~1504.8 mm), Q. serrata (1062.6~1504.7 mm). The range of altitude was in order of Q. mongolica (147~1388m), Q. serrata (93~950m), Q. variabilis(90~913m), Q. acustissima (60~516m), Q. aliena (55~465 m). The range of slope was in the order of Q. mongolica (8~56°), Q. variabilis(5~52°), Q. serrata (11~45°), Q. aliena (15~38°), Q. acustissima (16~37°). These results are considered to be very useful in the case of ecological restoration using deciduous oak trees on the Korean Peninsula.

  • https://doi.org/10.11614/KSL.2020.53.4.427 인용 PDF KSCI

Ammonia Gas Emission Factor at different Application Rate of Urea in Chinese Cabbage Cultivation (배추 재배지에서 요소시비에 따른 암모니아 배출계수 산정)

  • Lee, Su-Lim;Lee, Jae-Hoon;Rho, Jun-Suk;Park, Yu-Jin;Choi, Ah-Young;Kim, Sin-Sil;Lee, Seul-Rin;Park, Jong-Hwan;Seo, Dong-Cheol
    • Korean Journal of Environmental Agriculture
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    • v.41 no.1
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    • pp.41-49
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    • 2022

  • BACKGROUND: The main source of ammonia in soils, South Korea is agricultural emissions (e.g., fertilizer application and livestock manure), with the recent emission inventories reporting them to be approximately 80% of the total emissions. Ammonia as a pollutant is originated largely from agricultural activity and is an important contributor to air quality issues in South Korea. The importance of ammonia in agricultural land is also emerging. In this study, the characteristics of ammonia emission from Chinese cabbage cultivation fields with application rates of urea sere were evaluated. METHODS AND RESULTS: The ammonia emission characteristics were investigated at the different urea application rates (0, 160, 320, and 640 kg ha-1) and the ammonia emission factor in the Chinese cabbage cultivation field was calculated. As application rate of urea application increased, ammonia emissions increased proportionally. In 2020 and 2021, cumulative ammonia emissions with urea 320 kg ha-1 treatment were 39.3 and 35.2 kg ha-1, respectively for 2020 and 2021. When urea fertilizer was applied, the ammonia emission factors were 0.1217 and 0.1358 NH4+-N kg N kg-1 in 2020 and 2021, respectively. CONCLUSION(S): Ammonia emissions increased as application rate of urea increased, and the average ammonia emission factor of the Chinese cabbage cultivation field for two years was 0.129 NH4+-N kg N kg-1.

  • https://doi.org/10.5338/KJEA.2022.41.1.06 인용 PDF KSCI

Analysis of Plant Quarantine Insect Interception Data in South Korea from 2015 to 2022 (2015-2022년 식물검역 해충 검출동향 분석)

  • Seokyoung Son;Ki-Joeng Hong;Heungsik Lee;Hyobin Lee;Na Ra Jeong;Jaehyeon Lee;Sanghyo Park;Inhyeok Han;Hyeongsu Kim;Jaewon Kim;Wonhoon Lee
    • Korean journal of applied entomology
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    • v.62 no.4
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    • pp.261-266
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    • 2023

  • Interception data pertaining to Coleoptera, Hemiptera, Lepidoptera, Diptera, Thysanoptera, and Hymenoptera collected at the Korean quarantine border were cross-checked with new recorded species in Korea from 2015 to 2022. Overall, 45,084 interceptions belonging to the six orders were detected, and 545 species belonging to the six orders were newly reported in Korea. Of the 545 species, nine species were recorded as being intercepted at the quarantine border. Among the six orders, Coleoptera, Thysanoptera, and Hemiptera showed high numbers of interception; however, Hymenoptera revealed the highest number in new recorded species. These results indicate that recent newly recorded species in Korea are not subject to inspection at Korean borders and that the current quarantine system needs improvement.

  • https://doi.org/10.5656/KSAE.2023.10.0.047 인용 PDF