• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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• pp.382-386
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• 1998

The objectives of this study are to reveal relationship between tree physiology and spectral reflectance on effects of artificial acid rain and to obtain basic data on optimal wave length for forest of LRC sensor on KOMPSAT-2. Three pH levels of artificial acid rain - control, pH4.5 and pH3.0 - were applied to Pinus and Quercus species. Three types of the acid rain were spraied at the amount of 500m1 in every two days. Spectral reflectance data was collected once in a month by using GER 1500 (350~2500nm) or Ll 1800(300~1100nm) Spectroradiometer. The data was measured three times in a pH level. The results of this study are as follows; in April, the spectral reflectance of Pinus species was high in order at the level of pH3.0, control and pH4.5; in May, control, pH3.0 and pH4.5; in June, control, pH4.5 and pH3.0. That of Quercus species was high in the order of control, pH4.5 and pH3.0 in May; in June, control, pH3.0 and pH4.5, especially, within infrared wave length range, control, pH4.5 and ph3.0.

• 한국가구학회지
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• 제12권2호
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• pp.1-10
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• 2001

As finger joint method has a high rate of yield and high strength and ease in working, it has been widely used as an end joint method for solid wood and wood based-material. Therefore, we end-joined the material of Pinus densiflora, Quercus variabilis and populus euramericana with polyvinyl acetate adhesive and resorcinol phenol resin adhesive. The effect of difference (0, 0.15, 0.3, 0.45mm) between the dimensions of tip width and root width of the finger (DTRW) on bending strength properties was as follows: 1. In the case of polyvinyl acetate adhesive, DTRW had no effect on bending modulus of elasticity(MOE) and modulus of rupture(MOR) of the three kinds of species, because their bonding layers were destroyed by slippage, not their woody parts. 2. In the case of resorcinol phenol resin adhesive, the material of Quercus variabilis showed an optimal result at 0.15 or 0.3 of DTRW, while the poplar did at 0 of DTRW 3. The differences in efficiency ratio of bending MOR of populus euramericana, Pinus densiflora and Quercus variabilis species according to the kind of adhesive were 13-29%, 23-30% and 45-53%, respectively.

• 한국환경복원기술학회지
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• 제16권5호
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• pp.93-118
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• 2013

In this study, the forest vegetation of Jirisan National Park were classified into 20 communities, 3 subcommunities by the Z-M method. In the analysis of environmental factors, the organic matter and total nitrogen had the highest correlation on the subalpine forests. among them Picea jezoensis community showed the highest, Betula ermanii community, Taxus cuspidata community, Pinus koraiensis community, Abies nephrolepis community and Abies koreana community were represented in order. the K, Mg, Ca had correlation on th montane forests; Quercus mongolica community, Quercus serrata community, Stewartia pseudocamellia community, Pinus densiflora community, Quercus variabilis community were in order. the total nitrogen, electrical conductivity and organic matter had the highest correlation of the montane ravine forests; Fraxinus mandshurica community, Abies holophylla community, Betula costata community, Cornus controversa community and Carpinus laxiflora community were in order.

• 한국식생활문화학회지
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• 제27권2호
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• pp.225-232
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• 2012

This study was conducted to investigate the effects of acorn ($Quercus$ autissima carruther) powder on the antioxidant activity and quality characteristics of cookies. Cookies were prepared with different amounts of acorn powder (at ratios of 0, 0.5, 1, 3 and 5% to total flour quantity). Antioxidant activity was estimated based on DPPH free radical scavenging activity and total phenol content in acorn powder and cookies. To analyze quality characteristics, bulk density, pH of the dough, spread factor, loss rate, leavening rate, color, texture profile analysis, and sensory evaluations were measured. Loss rate, a values, total polyphenol contents and DPPH free radical scavenging activity of cookies significantly increased with increasing acorn powder content (p<0.01), whereas pH of the dough, L values and b values of the cookies significantly decreased with increasing acorn powder content (p<0.01). The results of sensory evaluation (appearance, taste, flavor, texture and overall preference) demonstrate that the 3% acorn cookie group showed the highest degree of preference among all items of added acorn powder. From these results, we suggest that acorn is a good ingredient for increasing the consumer acceptability and functionality of cookies.

• 한국산림과학회지
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• 제35권1호
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• pp.33-35
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• 1977

한독산림경영사업기구(韓獨山林經營事業機構) 양산사업소(梁山事業所) 묘포장(苗圃場)(경남(慶南) 양산군(梁山郡) 하북면(下北面) 순지리)에서 양묘(養苗)한 2개(個) 산지(産地)의 독일 가문비 1-1묘(苗)와 red oak 1~0묘(苗)의 묘고(苗高)를 특정(測定)한 결과(結果)는 다음과 같다. 1. Fichtel산지(産地)의 독일가문비가 Harz의 것에 비해 묘고성장(苗高成長)이 우수하였으며 Harz산(産)의 묘고성장(苗高成長) Fichtel 것의 70%에 불과 하였다. 2. 그러나 반복(反復)에 의(依)한 분산(分散)은 Harz의 것보다 Fichtel의 것이 크게 나타났다. 3. Red oak 1-0의 묘고성장(苗高成長)은 빠른 것으로 보인다.

• 임산에너지
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• 제21권1호
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• pp.25-31
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• 2002

경상북도 포항 지역에서 생육하는 평균 수령 37년생 상수리나무 천연림 생태계의 지상부 현존생물량 및 연순생산량을 분석하기 위해 2001년 8월에 총 10주의 표본목을 선정 벌목하였다. 수식 Wt=aD/sup b/ 를 사용하여 추정한 지상부 총 현존생물량은 115.47ton/ha으로 나타났다. 부위별 구성비는 수간목부 63.9%, 생지부 19.8%, 수피 14.0%, 그리고 잎 1.2%의 순으로 높았다. 총 연순생산량은 7.89ton/ha이었으며, 부위별 구성비는 현존생물량의 경우와는 다르게 수간목부, 수피, 생지부, 그리고 잎의 순 이었다.

• The Korean Journal of Ecology
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• 제12권4호
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• pp.257-284
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• 1989

This study was carried out to characterize pinus densiflora forests in middle province (Mt. Seolag, Mt. Taebaik) south province (Mt. Sokli, Mt. Jiri) and south-coast province (Mt. Daedun) of Korea. The appearance species in the P. densiflora alliance included 325 taxa and varied according to the direction of slopes. The steeper the slope was, the fewer number of taxa were observed. The floristic composition of south-coast province was gradually changing to the south hemispheric factors. Dominant species groups of P. densiflora alliance were classified into P. densiflora, Quercus serrata ( layer), Rhus trichocarpa ( layer), Lespedeza maximowiczii var. tomentella (S layer), Artemisia keiskeana, Carex humilis var. nana, Spodiopogon sibiricus (K layer). Quercus variabilis, Fraxinus sieboldiana and Styrax japonica association were formed under the P. densiflora alliance. Quercus, Rhus, Lespedeza and Rhododendron groups maintained high ecological relationships one another. The soil factors (pH, organic matters, and water field capacity)and relative light intensity tended to show negative correlation, which were significantly different among provinces. The P. densiflora forests of Korea were classified into one alliance and four associations, that is, pinion densiflorae Suz.-Tok. 1966, Quercetum variabilae ass. nov., Quercetum mongolicae ass. nov. Fraxinetum sieboldianae ass. nov. and Styraxetum japonicae ass. nov.

• The Korean Journal of Ecology
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• 제11권3호
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• pp.145-152
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• 1988

The potential natural vegetation of Naejangsan national park area, southwestern Korea, was inferred from the actual vegetation. With the phytosociological classification, ordinatins and field surveys, the actual vegetation map of the area was made in scale 1:25, 000, including ten communities of Pinus densiflora, quercus mongolica, Quercus variabilis, Carpinus laxiflora, Daphnipyllum macropodum, Carpinus tschonoskii, Quercus aliena-Carpinus tschonoskii, Cornus controversa-Lindera erythrocarpa, Torreya mucifera-Zelkova serrate and Acer mono-Zelkova serrata community. The analyses of species richness, age structure and various informations on vegetation changes suggest the three pathways of late stage succession from P. densiflora forest to climatic climax. The first of them is through Q. variabilis forest to Q. monogolica forest in the upper parts of the mountain, the second through Q. variabilis and Q. serrata forest to C. laxiflora forest in the middle parts and the third through Q. aliena forest to C. tschonoskii forest in lower parts. Considering the actual vegetation and informations on the vegetation changes including human activities, the potential natural vegetation of the mountain mainly composed of Q. monogolica, C. laxiflora, C. tschonoskii, P. densiflora and Z. serrata forest as climatic climax and/or edaphic climax was inferred. The present situration of nature conservation in the area was estimated by the examination on the actual vegetation and potential natural vegetation map.

• 한국환경생태학회지
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• 제15권4호
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• pp.330-343
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• 2002

백두대간상의 피재-도래기재구간 능선부에서 43개소 조사지(면적 500$m^2$)를 설정하여 식생구조를 파악하였다. TWINSPAN분석에 의하여 조사지의 식물군집을 분류한 결과, 아고산대 혼효림, 신갈나무-당단풍군집, 신갈나무-소나무군집, 신갈나무군집, 일본잎갈나무림으로 분리되었다. 백두대간 피재-도래기재구간의 능선부는 대부분 신갈나무가 우점하고 있었으며, 국지적으로 분비나무, 주목 등의 한대 기후대 침엽수와 낙엽수종들이 혼효하고 있었다. 조사지의 산림군집의 종다양성지수(면적 1,000$m^2$)는 2.0149~3.0139로서 백두대간에 위치한 국립 공원들의 능선부 식생구조와 유사하였다.

• 임산에너지
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• 제19권1호
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• pp.38-48
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• 2000

한국산 참나무아속 화분형태의 유사관계 및 종내변이를 조사하기 위하여 화분립의 국축길이, 적도면 폭, 구의 길이, 구의 폭을 측정하고 화분립의 국축길이에 대한 적도면 폭의 비율을 계산하였다. 본 연구 결과를 근거로 하여 군집분석을 수행한 결과 상수리나무와 굴참나무의 화분형태가 가장 유사관계가 높은 것으로 나타났다. 조사된 수종 중 화분립의 크기에 있어서 폭 넓은 변이를 나타내는 떡갈나무의 경우에는 polypoid와 (또는) aneuploid의 형태가 존재하는 것으로 추정되었다. 참나무아속 수종들의 ploidy levels에 대한 연구가 수행되어야 할 것이다.