곰솔 및 삼나무의 흉고형수 (胸高形數) 결정에 관한 연구

박남창,정영관 ( Nam Chang Park,Young Gwan Chung ) 한국산림과학회 1985 한국산림과학회지 Vol.70 No.1

In order to estimate breast-height form factors of Pinus thunbergii and Cryptomeria japonica, 8 models based on tree age, diameter at breast height and tree height were suggested and evaluated. It was the following equations that turned out to be most fit for estimating them; for Pinus thunbergii, F = 0.553 - 4.567 1/A + 71.409 1/A² (R² = 0.928), based on tree age, (6.727^(**)) (14.100^(**)) F = 0.356 + 1.774 1/D - 0.770 1/D² (R² = 0.944), based on diameter at breast height, (15.102^(**)) (2.908^(**)) F = 0.316 + 1.546 1/H + 0.397 1/H² (R² = 0.941), based on tree height, (8.380^(**)) (3.896^(**)) for Cryptomeria japonica, F = 0.400 + 2.348 1/A + 17.053 1/A² (R² = 0.889), based on tree age, (3.501^(**)) (3.298^(**)) F = 0.353 + 2.118 1/D - 1.462 1/D² (R² = 0.923), based on diameter at breast height, (14.873**) (3.545**) F = 0.403 + 0.427 1/H + 2.843 1/H² (R² = 0.887 ), based on tree height. (3.254^(**)) (5.742^(**)) The above estimated breast-height form factors proved to be overestimated for young trees and small diameter trees, and to be underestimated for old trees and large diameter trees, in comparison to generally accepted figure in Korea, that is, the form factor of 0.45.

토양의 물리화학적 성질에 의한 소나무림 임지생산력 추정

박남창(Nam-Chang Park),이광수(Kwang-Soo Lee),정수영(Su-Young Jung) 한국토양비료학회 2009 한국토양비료학회지 Vol.42 No.3

We estimated site productivity for unstocked land based on the relationship between site index (i.e., average height of dominant trees at fixed age) and soil physico-chemical properties of Pinus densiflora stands. Site index relates to a direct method of determining a tree"s response to a specific environment such as forest soil and climate conditions. We selected 78 sites in 22 P. densiflora stands of central temperate forest zone, and sampled soils for physicochemical analyzing. And 13 properties of soils were statistically treated by stepwise regression. In the degree of contribution of the variables to site index, the highly effective variables in A horizon were OM, clay content, sand content, available P2O5, and Exch. Ca<SUP>++</SUP> inorder, and in B horizon T.N., O.M., Soil pH, cation exchange capacity(C.E.C.), and sand content in order. In both A and B horizon of the soil for P. densiflora stands, the variables commonly contributed to the site index were sand content and OM. These results may be useful to provide not only important criteria for establishment of Pinus densiflora stand sespecially in unstocked land but also aguidance for reforestation.

산림 토양의 이화학적 성질과 낙엽송 임분의 지위지수와의 관계

박남창 ( Nam Chang Park ),이광수 ( Kwang Soo Lee ),박문섭 ( Mun Sueb Park ),신현철 ( Hyeon Chul Shin ),전권석 ( Kwon Seok Jun ),정수영 ( Su Young Jung ) 한국산림과학회 2008 한국산림과학회지 Vol.97 No.6

간벌 후 붉가시나무 임분의 토양 특성 변화

황재홍 ( Jae Hong Hwang ),이상태 ( Sang Tae Lee ),박남창 ( Nam Chang Park ),최재채 ( Jae Chae Choi ),신현철 ( Hyun Cheol Shin ),이경재 ( Kyung Jae Lee ),이광수 ( Kwang Soo Lee ) 한국산림과학회 2006 한국산림과학회지 Vol.95 No.6

한국산 맹종죽 (孟宗竹) 죽순의 (竹筍) 성분에 관한 연구

정종성,박남창,이창우,원주상 ( Jong Seong Cheong,Nam Chang Park,Chung Woo Lee,Joo Sang Whon ) 한국산림과학회 1989 한국산림과학회지 Vol.78 No.1

To find the nutritive values of the edible bamboo shoot (Playllostachys edulis) produced in Korea, the component analysis was conducted using the fresh and canned bamboo shoot. As the principal component: water, protein, lipid, sucrose, ash, cellulose and calorie content were measured in fresh bamboo shoot and canned bamboo shoot. Also the content of minerals ; K, P, Ca, Fe and Vitamins were analysed and compared between fresh and canned bamboo shoot. The contents of component were devided into upper, middle and bottom bamboo parts, The contents of protein, lipid, ash, cellulose and calories of raw bamboo shoot were higher than those of canned shoot. Generally, the components of bamboo shoot produced in Korea were not significantly different to those of Ueda`s results in Japan, But the contents of lipid, calcium and potassium were higher in Korean bamboo shoot.

뽕나무 숯 처리가 Kentucky Bluegrass의 염해에 따른 생육과 생리적 반응에 미치는 영향

배은지,정성우,박남창,이광수,신현철,허무룡,Bae, Euu-Ji,Jeong, Sung-Woo,Park, Nam-Chang,Lee, Kwang-Su,Shin, Hyun-Cheol,Huh, Moo-Ryong 한국잔디학회 2011 한국잔디학회지 Vol.25 No.1

본 시험은 뽕나무 숯이 염해의 내성에 미치는 영향에 대해 알아보고자 한지형 잔디인 Kentucky bluegrass를 공시하여 수행하였다. 잔디의 생체중과 건물중 등의 생육은 NaCl 400 mM의 처리에 의해 크게 억제되었으며 NaCl처리에 의해 엽록소 농도의 저하와 전해질의 누출상승 등 생리적 장해를 초래하였다. 이러한 생육의 억제와 생리적 장해는 뽕나무 숯의 전처리에 의해 크게 경감될 수 있었다. 뽕나무 숯의 전처리는 K이온의 흡수를 도와 Na이온을 체외로 배출시키는 것을 확인하였다. 본 시험의 결과 뽕나무 숯의 처리는 염해에 약한 잔디류의 간척지 및 염류가 높은 토양에서 식생조성이 가능할 것으로 사료되었다. This research was conducted to determine the effect of the pre-treatment of mulberry charcoal on the salt tolerance response in Kentucky bluegrass 'Perfection'. As this results, 400 mM NaCl treatment reduced turf growth such a fresh and dry weight, and induced physiological damages like decreased chlorophyll content and increased electrolyte leakage. The pre-treatment of mulberry charcoal, however, mitigated those growth and physiological responses associated with NaCl stress, regardless of the concentrations of charcoal solution. Furthermore, it was observed that higher K ion concentration by mulberry charcoal pre-treatment reduced Na ion in shoot. This research suggests to be a possibility of planting turf grasses in reclaimed land or higher salt accumulated area using a mulberry charcoal treatment.

국내에서 수집된 버뮤다그래스의 입자환경 및 형태적 특성

배은지,이광수,박남창,이상명,신현철,양근모,Bae, Eun-Ji,Lee, Kwang-Su,Park, Nam-Chang,Lee, Sang-Myung,Shin, Hyun-Cheol,Yang, Geun-Mo 한국잔디학회 2011 한국잔디학회지 Vol.25 No.1

본 연구는 국내 해안 및 도서지역에 자생하고 있는 버뮤다그래스를 지역별로 수집하여 입지환경에 따른 형태적 변이 정도를 알아보고자 수행되었다. 이들 입지환경, 토양의 화학성과 형태적 특성을 조사하였다. 수집된 자생지에 따라 초장, 엽폭, 엽장, 잎털, 포복경 및 화수당 종자수 등에서 큰 변이를 보여 조사 형질 간에 다양한 변이를 보이는 것을 확인할 수 있었다. 광엽과 세엽 특성의 버뮤다그래스가 존재하고 있었으며, 광엽형의 버뮤다그래스의 경우 열악한 환경에서의 적응성이 매우 높아 중 저관리의 잔디면에 이용 가치가 높을 것으로 생각된다. 상기 입지 환경과 형태적 특성 조사 결과 및 수집된 유전자원들은 앞으로 유전자원으로서 보존 가치가 높으며, 유용유전자를 보존할 수 있는 체계가 마련되어야 할 것으로 판단된다. This study was conducted to identify the morphological characteristics and variations level by site environment of native bermudagrass (Cynodon spp.) from costal and island region in South Korea. Soil chemical properties and morphological characteristics were investigated. There were significant differences in plant height, leaf width, leaf length, cotton on leaf blade, stolon, and number of seed per spike depending on where they were collected from natural habitat. We have discovered a variety of variation among the investigated traits in Korean native bermudagrass ecotypes. There were broad leaf and fine leaf types of native bermudgarass in S. Korea. Adaptability was in very high on inadequate environment in bermudagrass with broad leaf types, it has also been suggested that management worth in terms of use. These results may provide basic information for bermudagrass breeding development and the collected types during this investigation would be worth being preserved as genetic resources for further breeding purposes.

솔수염하늘소 제어를 위한 소나무림 숲가꾸기의 하한(下限)시기 구명

전권석 ( Kwon Seok Jeon ),박남창 ( Nam Chang Park ),윤희탁 ( Hee Tak Yoon ),홍성천 ( Sung Cheon Hong ) 한국임학회 2011 한국산림과학회지 Vol.100 No.3

소나무재선충병의 방제법 중 임업적 방제법을 개발하기 위한 일환으로 소나무재선충의 매개충인 솔수염하늘소가 서식처로 이용할 수 없는 소나무림 숲가꾸기의 하한(下限)시기를 구명하기 위하여 2010년 2월 국립산림과학원 남부산림연구소 진주시험림에 야외그물망 케이지(크기 1 m×1 m×1 m)를 7개 설치하였다. 각 케이지 내에 시기별 숲가꾸기 산물(길이 1.0 m, 직경 5~10 cm)을 5~10개씩 투입한 후 솔수염하늘소의 성충 4~6쌍을 방사하여 후식시켰다. 2010년 11월 각 시료목에 출현한 유충 침입공과 유충서식유무를 조사한 바, 숲가꾸기 시기로부터 성충방사시기 까지 24개월, 18개월, 12개월, 6개월 된 산물을 한 케이지 내에 함께 넣은 경우(처리 1)에는 유충 침입공은 12개월된 산물까지 출현하였으나 유충은 6개월 된 산물에서만 출현하였다. 24개월, 18개월, 15개월, 12개월 된 시료목을 한케이지 내에 함께 넣은 경우(처리 2)에는 유충 침입공은 18개월 된 산물까지 출현하였으나 유충은 12개월 된 산물에서만 출현하였다. 그리고 24개월, 18개월, 15개월, 12개월, 6개월 된 산물을 각 케이지 내에 독립적으로 넣은 후 건조, 습윤구로 구분하여 처리한 경우(처리 3)에는 건조구와 습윤구 모두에서 유충 침입공은 18개월, 15개월, 12개월, 6개월된 산물에서 출현하였으나 유충은 건조구에서는 15개월, 12개월, 6개월 된 산물에서 출현하였고 습윤구에서는 6개월 된 산물에서만 출현하였다. 이상의 제 결과로써 숲가꾸기한 후 24개월이 경과한 산물은 솔수염하늘소의 서식 처로 이용되지 않는 것으로 사료된다. Field Cage plots (1 m×1 m×1 m) were established (7 units) to find the lowest limit time about the tending of red pine forest (Pinus densiflora) which can no longer be used as a habitat by Monochamus alternatus, vector insect of pine wilt disease at the experimental forest of the southern forest research center of the Korea forest research institute in February in 2010. Thinning slashes (length, 1 m; diameter, 5~10 cm) tended at the different times were put in cages, and 4~6 couples of adult M. alternatus were put into each the cage in June. Presence or absence the larval entrance holes and larval were determined in November in 2010. Incase of the combination 24, 18, 12 and 6-month-old thinning slashes from thinning times to the time of adult emergence inside a single cage, larval entrance holes were found in the 6-month-old and 12-month-old thinning slashes but larvae were found only in the 6-month-old thinning slashes (treatment 1). In case of the combination 24, 18, 15 and 12-month-old thinning slashes inside a single cage, larval entrance holes were found in the 15-month-old and 12-month-old thinning slashes but larvae were found only in the 12-month-old (treatment 2). When 24, 18, 15, 12 and 6-month-old thinning slashes with treated dry and humid condition were put separately inside each cage, larval entrance holes were found in the 18, 15, 12, 6-month-old thinning slashes without the relation of the dry and humid conditions. But larvae were found in the 15, 12, 6-month-old thinning slashes in the dry conditions and only in the 6-month-old thinning slashes in the humid conditions. Results indicated the lowest limit time which can no longer be used as a habitat by M. alternatus is before 24 month from the time of adult emergence.

솔수염하늘소와 북방수염하늘소의 섭식과 산란행동을 통한 소나무재선충의 이탈

김동수,이상명,허혜순,박남창,박정규,Kim, Dong-Soo,Lee, Sang-Myeong,Huh, He-Soon,Park, Nam-Chang,Park, Chung-Gyoo 한국응용곤충학회 2009 한국응용곤충학회지 Vol.48 No.4

본 연구에서는 소나무재선충병 매개충의 소나무재선충 보유 정도와 산란 및 섭식행동을 통한 전파에 대하여 조사하였다. 첫째, 세 가지 종류의 벌채목으로부터 우화 탈출하는 솔수염하늘소의 소나무재선충 보유 정도를 조사하였다. (가)의 경우는 건전한 소나무를 벌채하여 감염림 내에 방치한 것이고, (나)의 경우는 감염목에서 우화 탈출한 솔수염하늘소를 건전한 벌채목에 산란시켰을 경우이며, (다)의 경우는 솔수염하늘소는 서식하고 있으나 소나무재선충은 보유하지 않은 소나무를 벌채하고 소나무재선충을 인공적으로 접종한 경우이다. 세 경우 모두 이듬해에 벌채목으로부터 우화탈출하는 솔수염하늘소의 소나무재선충 보유율과 보유수를 조사하였다. (가)와 (나)의 경우 소나무재선충 보유율은 각각 18.3%와 15.6%이었고, 보유한 소나무재선충 수는 각각 $5,713.1{\pm}9,248.3$마리와 $2,034.1{\pm}4,746.8$마리로서 차이가 없었다. 그러나 인공적으로 소나무재선충을 접종한 (다)의 경우에는 소나무재선충 보유율과 보유수가 각각 38.3%와 $20,083.1{\pm}32,188.3$마리로서 다른 두 경우에 비해 높은 경향이었다. 한편, 소나무재선충 보유수를 조사한 세 경우 전체 52마리의 솔수염하늘소 중에서 20마리(38.5%)가 5,000마리 이상의 소나무재선충을 보유하고 있었고, 이들 20마리가 보유한 소나무 재선충이 전체 소나무재선충의 97.9%를 차지하였다. 둘째, 야외의 소나무재선충 감염림에서 채취한 소나무로부터 우화한 솔수염하늘소와 북방수염하늘소의 섭식 과정 중에 이들로부터 이탈하는 소나무재선충의 수를 조사하였다. 소나무재선충이 솔수염하늘소와 북방수염하늘소 몸으로부터 이탈한 일수는 각각 $34.9{\pm}12.4$일과 $23.9{\pm}16.2$일이었고, 우화 후 2주째에 가장 많이 탈출하였다. 우화 후 2주 이내에 탈출한 소나무재선충의 비율은 솔수염하늘소의 경우는 44.5%, 북방수염하늘소의 경우에는 47.2%이었으며, 매개충 한 마리당 이탈하는 소나무재선충의 수는 각각 $3,570.6{\pm}5,189.2$ 마리와 $1,556.2{\pm}1,710.3$ 마리이었다. This study was performed to investigate the escape of pine wood nematode (PWN), Bursaphelenchus xylophilus, from two vector species (Monochamus alternatus and M. saltuarius) through oviposition and feeding behavior. First, we checked number of PWNs escaped from M. alternatus emerged from three different cases of pine logs. In case A, healthy pine trees were cut into logs and left in pine forest infected with PWN. In case B, healthy pine trees were cut into logs, left in large screen cage, and let them oviposited by M. alternatus emerged from pine trees infested with PWN. In case C, pine trees which were harboring M. alternatus were cut into logs, and PWN was inoculated artificially. The M. alternatus adults emerged from the above three cases of pine logs were checked in the next year to know how many PWN they were harboring in their bodies. The percentages of M. alternatus harboring PWN (18.3 and 15.6%, respectively) and number of nematodes per vector ($5,713.1{\pm}9,248.3$ and $2,034.1{\pm}4,746.8$ PWNs, respectively) in case A and B logs are similar to each other. However, the percentage and the number in case C (38.3% and $20,083.1{\pm}32,188.3$ PWNs) were higher than those of case A and B. Among 52 M. alternatus adults harboring PWN from all the three cases, 20 adults (38.5%) were harboring more than 5,000 PWNs per beetle. And these 20 adults were harboring 97.9% of the total PWNs in 52 adults. Second, we checked the daily escape of PWNs from M. alternatus and M. saltuarius collected at pine forest infested with PWN. The PWN escaped from their vector body for $34.9{\pm}12.4$ days for M. alternatus, and for $23.9{\pm}16.2$ days for M. saltuarius, reaching at peak escape during the 2nd week of emergence of the two vector species. A 44.5 and 47.2% to the total PWNs escaped from vector body within 2 weeks of vector emergence for M. alternatus and M. saltuarius, respectively. The number of PWNs escaped from each vector was $3,570.6{\pm}5,189.2$ and $1,556.2{\pm}1,710.3$ for M. alternatus and M. saltuarius, respectively.

소나무 치수림 가꾸기가 솔수염하늘소의 서식에 미치는 영향

전권석 ( Kwon Seok Jeon ),박남창 ( Nam Chang Park ),홍성천 ( Sung Cheon Hong ) 한국산림과학회 2010 한국산림과학회지 Vol.99 No.4

Cage plots were established in 2008 to find the relationship between combination of tended Japanese red pine sapling and the habitation of Monochamus alternatus, a vector for pine wood nematode. Japanese red pine sapling tended at different times were successively put into the cage, and then the adult of Monochamus alternatus was put in June. Presence or absence of the larva was determined November. Sapling tendings were done at seven successive times in 2009, mid- and late February and March, mid-April, May and June. Some saplings were also tended in mid-October of 2008, the previous year of this experiment. The larva was found in all the saplings tended later than mid-March in 2009. No larva was found in the saplings tended in mid-October of 2008 and those in February of 2009. In case of the combination the by-products of mid-February and late March of 2009 and mid-October of 2008, the larva was found in the by-product of mid-February and late March of 2009, but those in mid-October of 2008 was not. When the saplings tended in mid-October of 2008 and mid- and late February of 2009 were put into the cage singly, the larva was found in all the saplings. Results indicated the mixture of the saplings tended at different times affected the habitation of Monochamus alternatus differently.