경기도 광주지역 잣나무 침엽의 분광특성에 관한 연구

주영특,김영채,정동준,김홍률 한국농림기상학회 1999 한국농림기상학회지 Vol.1 No.2

This study was carried out investigate spectral characterisistics and chlorophyll contents of Pinus koraiensis needles in Gwangju-gun, Kyunggi-do. In spectrum analysis by each age, needle showed difference on 700~1,100 nm(NIR : near in frared ray). Light reflexibility keeps constant between lst year needle and 3rd year needle, current year needle's value was higher than others and that was higher for 400~500 nm at 550 nm, Transmission to needle's age showed the highest result in current year needle. It showed in order of current, lst, 2nd and 3rd year needle at 550 nm and 750 nm. Especially, current year needles of Pinus Koraiensis showed a tendency to change transmission coefficient in NIR. The result of transmission coefficient measurement by each position of slope showed in order of middle slope, upper slope and lower slope. But the gathered needle in middle slope made marked change at NIR. Chlorophyll a content of the upper slope's needles was higher than other 4 positions but a component ratio was lower. In needle of the oppressed tree, Chlorophyll a content was rather low than others. Chlorophyll a content by slope positions, the upper slope's needle showed a highest value(4.48 mg/g) and lower slope was lowest value(1.35 mg/g). Chlorophyll b content also showed a similar tendency to chlorophyll a and chlorophyll(a+b) contents.

강원대 학술림(홍천)과 경춘가도(청평)변 잣나무 엽과 수피의 pH 및 수용성 황 함량에 관한 연구

주영특,이상덕,김홍률 한국산림과학회 2004 한국임학회 정기학술발표논문집 Vol.2004 No.-

소나무 임분내 강설의 산성도 및 화학적 조성

주영특,김홍률,김영채,이상덕 한국임학회 2005 한국임학회 학술발표논문집 Vol.2005 No.-

학술연구 발표논문집 : 포스터 발표 ; 상주대학교 애일당 안 : 산림지역을 통과하는 안개의 화학적 조성 변화

주영특,김홍률,이상덕,임홍우,이숙희 한국임학회 2003 한국임학회 정기학술발표논문집 Vol.2003 No.-

잣나무 침엽의 엽록소 함량의 경사면, 수관 부위, 방위의 차이에 따른 엽령별 변화

주영특,김영채,이찬호 경희대학교 환경연구소 1995 環境硏究 論文集 Vol.6 No.-

This study was carried out to examine the variation of chlorophyll contents in the needle of Pinus koraiensis by the difference of micro-environments. The sample needles were collected by the slope divided with lower, middle and upper slopes, tree crown with lower and upper parts, direction with northern and southern, forest edge and surpressed tree. Chlorophyll contents of current, 1 year old, 2 years old and 3 years old needle were measured. Total chlorophyll(a+b) contents of the needle in middle slope was the highest followed by upper and lower slope. In the total chlorophyll(a+b) contents by the needle age, the 1 year old needle showed the highest value and the current year old needles were the lowest. Total chlorophyll(a+b) contents of the needle in lower part of tree crown was higher than in upper part. The needle in northern direction had more chlorophyll than in southern. It was appeared that the chlorophyll contents in the needle of Pinus koraiensis were varied by the difference of micro-environment.

잣나무임분 내 초기 강우와 후속 강우의 분리채수에 따른 화학적 조성의 변화

주영특,김홍률,이상덕 한국산림과학회 2002 한국임학회 학술발표논문집 Vol.2002 No.-

N/A N/A

잣나무 종자형질에 미치는 몇 개 기상인자의 영향 : 구과 무게 및 구과당 종자 무게 The weight of cone and seed per cone

朱營特,全尙根,鄭東浚 한국농림기상학회 1999 한국농림기상학회지 Vol.1 No.1

This study was conducted to reveal the effect of some meterological factors on the weight of cone and seed per cone in Korean white pine (Pinus koraiensis SIEB. et ZUCC.). The weight of cone and seed per cone for 7 years from 1992 to 1998 on 45 (1992) year - old trees and some meterological factors for 9 year s from 1990 to 1998 were surveyed in Hongcheon - Gun region, Gangweon - Do. Simple correlations and multiple regression between weight of cone and seed per cone and some meterological factors were analyzed. The results obtained from the above experiments were as follows : 1. Positive correlations were found between weight of cone and monthly mean temperature of February in flower bud differentiation year, number of annual hoarfrost days of the cone production year, monthly mean temperature of may in the cone production year, as July respectively. There were negative correlations between weight of cone and monthly mean temperature of august in the flowering year, wind speed of April in the flower bud differentiation year, number of clear days of december in the flowering year, number of annual cloudy days of the flowering year, number of precipitation days of june in the flowering year, number of annual precipitation days of the flowering year, number of annual cloudy days of March in the cone production year, number of annual cloudy days from march to October in the flowering year as well as number of precipitation from march to october in the flowering year. 2. Positive correlation between weight of seed per con e and number of hours with sunshine duration of June in the flowering year, the percentage of sunshine duration of June in the flowering year, number of clear days of June in the flowering year, monthly mean temperature of may in the cone production year, as well as monthly mean temperature of July in the cone production year were found. Negative correlations were recognized between weight of seed per cone and monthly mean temperature of January in the flowering year, monthly mean temperature of august in the flowering year, wind speed of april in the flower bud differentiation year, number of annual cloudy days of the flowering year, number of precipitation days of June in the flowering year, number of annual cloudy days from March to October in the flowering year as well as number of precipitation from march to October in the flowering year.

잣나무 毬果무게 및 毬果當種子무게에 미치는 몇개 氣象因子의 影響

朱榮特,全尙根 경희대학교 부설 식량자원개발연구소 1988 硏究論文集 Vol.9 No.-

This study was conducted to know the effect of some meterological factors on the weight of cone and seed per cone in Korean white pine (Pinus koraiensis SIEB. et ZUCC.). The weight of cone and seed per cone for 7 years from l974 to 1980 on 45(1974) year-old trees and some meterological-factors for 9 years form l972 to 1980 were surveyed in Hongcheon-Gun region, Gangweon-Do. Simple correlations and multiple regression between weight of cone and seed per cone and some meterological factors were analyzed. The results obtained from the above experiments were as follows ; 1. Positive correlations were found between weight of cone and X₂, X_(10), X_(11), as well as X_(22) respectively. 2. There were negative correlations between weight of cone and X₃, X₄, X_(5), X_(6), X_(7), X_(8), X_(9), X_(13) as well as X_(14). 3. Positive correlations between weight of seed per cone and X_(5), X_(6), X_(7), X_(11) as well as X_(12) were found. 4. Negative correlations were recognized between weight of seed per cone and X₂, X₃, X₄, X_(9), X_(10), X_(13) as well as X_(14). 5. The equations estimated from multiple regression among weight of cone and some meterological factors were as follows ; Y_(i)=378.73462+5.17899 X₂-9.79481 X₃ Y_(i)=-62.08844-7.41643 X_(9)-0.55197 X_(10)-10.13006 X_(11)-11.41351 X_(12)+7.60457 X_(13) Y_(i)=359.76071-3.80000 X₃-1.92589 X_(5)-0.73423 X_(6)-0.51902 X_(8)+0.20864 X_(14) Y_(i)=199.86570+2.83985 X₂-2.46432 X₃-0.5199 X_(5)+6.28469 X_(7)-0.53510 X_(9) Y_(i)=9.31631+0.12641 X_(11)+0.12641 X_(11)+5.18549 X_(12)-1.23839 X_(13) 6. The equations estimated from multiple regression among weight of seed per cone and some meterological factors were as follows ; Y_(i)=125.74375-3.87758 X₂-3.04731 X₃ Y_(i)=128.59011-1.35191 X₃-26.01429 X₄+0.65898 X_(5)-2.89627 X_(6)+2.83274 X_(7) Y_(i)=105.30285-0.70249 X_(10)-0.83589 X_(8)+0.31191 X_(7)-17.25096 X₄-1.26644 X₂ Y_(i)=86.97105-0.99237 X_(10)-0.83444 X_(8)+2.45465 X_(7) Notes ; Dependent and independent variables used for statistical analysis were as follows ; Y_(i) ; Weight of cone. X₂ ; Monthly mean temperature of Feburary in the flower bud differentiation year. X₃ ; Monthly mean temperature of August in the flowering year. X₄ ; Wind speed of April in the flower bud differentiation year. X_(5) ; Number of clear days of December in the flowering year. X_(6) ; Number of annual cloudy days of the flowering year. X_(7) ; Number of precipitation days of June in the flowering year. X_(8) ; Number of annual precipitation days of the flowerign year. X_(9) ; Number of annual cloudy days of March in the cone production year. X_(10) ; Number of annual hoarfrost days of the cone production year. X_(11) ; Monthly mean temperature of May in the cone production year. X_(12) ; Monthly mean temperature of July in the cone production year. X_(13) ; Number of annual cloudy days from Mach to October in th flowering year. X_(14) ; Number of precipitation from March to October in the flowering year. Y_(i) ; Weight of seed per cone. X₂ ; Monthly mean temperature of January in the flowering year. X₃ ; Monthly mean temperature of August in the flowering year. X₄ ; Wind speed of April in the flower bud differentiation year. X_(5) ; Number of hours with sunshine duration of June in the flowering year. X_(6) ; The percentage of sunshine duration of June in the flowering year. X_(7) ; Number of clear days of June in the flowering year. X_(8) ; Number of clear days of December in the flowering year. X_(9) ; Number of annual cloudy days of the flowering year. X_(10) ; Number of precipitation days of June in the flowering year.

학술연구 발표논문집 : 포스터 발표 1 ; 산림과학관 2층 국제회의실 앞 : 소나무 임분에서 분할 채취한 강우의 화학적 조성의 변화

주영특,김홍률,이상덕 한국임학회 2003 한국임학회 학술발표논문집 Vol.2003 No.-

잣나무림의 林冠構造 및 分光特性에 關한 硏究

朱榮特,金英彩,金洪律 경희대학교 부설 식량자원개발연구소 1996 硏究論文集 Vol.17 No.-

잣나무 인공림의 林冠構造의 분석과 분광특성, 엽록소 함량을 비교 조사하기 위하여 Standard Cosine Receptor(LI-COR-1800-11)와 Portable Spectroradiometer(LI-COR-1800-22), 比色計(UV-spectrophotometer)를 이용, 경기도 광주군 퇴촌면 소재 경희대학교 연습림에 시험조사구를 설치 측정 조사한 결과를 요약하면 다음 과 같다 1. 조사대상지의 林冠構造는 평균수고 11.03±0.10(m)에 대하여 平均 樹冠長은 6.69±0.67(m)로서 약 63.4%의 수관심도를 갖는 우수한 林冠溝造를 나타내었다. 2. 樹冠構造에 따른 光合成 效率을 알아보기 위한 分光特性에서 잣나무 잎의 연령별 光反射 係敎는 당년생 잎이 가장 높은 값(0.063~0.49)를 보였으며 대체로 엽령이 높아질수록 광반사계수는 낮아졌다. 3. 또한 엽령별로 측정된 光透過率에 있어서 透過係數는 당년생 잎이 가장 높은 값(0.003~0.139)을 보였으며, 1년생, 2년생, 3년생의 葉齡別 順으로 점차 잎의 노령화에 따른 감소경향을 보이고 있었다. 4. 이상의 光透過率과 反射率에 있어서 斜面 位置別로 채취한 잎에서 나타난 결과는 항상 태양광선을 많이 받는 임목의 상부에서 가장 높은 反射率(0.06~0.47)을 보였으며, 光透過率은 斜面 中部의 잎에서 그 값이 가장 높게(0.002~0.130) 나타났다. 5. 각 조사 대상목의 잎에 대한 전체적인 葉綠素의 含量은 1년생 잎에서 Chlorophyll a : 1.59㎎/g, Chlorophyll b : 0.54㎎/g 로 제일 높게 나타났으나, 葉綠素 構成比에 있어서는 Chlorophyll a/b : 3.51 로 당면생 잎이 가장 높은 측정치 를 보였는데, 연령이 낮을수록 이들 값은 감소하는 경향을 보였다. This study was carried out to examine the variation of chlorophyll contents and spectral properties in the needle of Pinus koraiensis. The sample needles were collected from Kyung Hee Univ. experimental forest located on kyunggi province by slope gradients with lower, middle and upper levels. Clorophyll contents and spectrum analysis was conducted on current year, 1 year old, 2 years old and 3 years old needles. The best condition of forest canopy structure of investigation area was approximately 63.4% of crown depth. This study also shows the following results on the photosynthesis effiency of crown structure : (1) The higest values of reflection coefficient was 0.063∼0.490 obtained from the needle of current year. (2) The highest tansmittance coefficient was 0.003∼0.139 from the needle of current year. (3) Reflexibillity at upper position of trees and the transmittance at the middle slope had the highest values(0.06-0.47 and 0.002∼0.130, respectively). (4) The chlorophyll content of the 1 year old needle had the highest values(chlorophyll a : 1.59㎎/g), but a rate of chlorophyll content of current year showed highest values(chlorophyll a/b : 3.51).