http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 宋七永 (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
송칠영,이경형,이인세,이승우,박범진,김선아,이욱,전양 충남대학교 농업과학연구소 1996 농업과학연구 Vol.23 No.2
Herbal and woody plants were surveyed in native and aritifitial stands of experimental forest and stand within the vicinity of belongings facilities in Chungju Experimental Forest, Chungnam National University. Appearance species were classified and taken a photograph of. There were a total of 135 kinds, 60 familia, 113 genus, 123 species, 12 variatas. 49 kinds of them were herbs, 86 kinds were woody plants, and 7 kinds were evergreen trees. We try to solve the problem that species of plant could be sustained going on and be diversified.
-
신갈나무와 굴참나무 천연림 생태계의 현존량 및 물질 생산성에 관한 연구
송칠영(Cheel Young Song),이수욱(Soo Wook Lee) 한국산림과학회 1996 한국산림과학회지 Vol.85 No.3
A study has been made to estimate biomass and NPP based on equation form of Wt=aD^bH^c for Quercus variabilis and Quercus mongolica natural stands(Mean age; 67, 62yrs old) in Chungju. Equation form of Wt=aD^bH^c was more adequate than Wt=a(D²H)^b and Wt=aD^b for the estimation of the biomass and NPP. Individual biomass was compared using a paired t-test by tree component which showed no significant differences. Total aboveground biomass of Quercus mongolica was 130.6 t/㏊ and that of Quercus variabilis was 137.4 t/㏊. Biomass of Q. mongolica was composed of foliage 5.1 t/㏊(3.9%), dead branch 3.5 t/㏊(2.7%), live branch 29.7 t/㏊(23.0%), bolebark 16.2 t/㏊(12.5%), and bolewood 74.9 t/㏊(58.0%), and that of Q. variabilis was composed of foliage 3.8 t/㏊(2.9%), dead branch 2.9 t/㏊(2.2%), live branch 24.3 t/㏊(18.4%), bolebark 20.4 t/㏊(15.5%), and bolewood 80.4 t/㏊(61.0%). Net primary production was 10.0 t/㏊/yr in the Q. mongolica stand and 8.6 t/㏊/yr in the Q. variabilis stand, respectively. Net primary production of Quercus forest in Chungju was very close to the mean NPP of the broadleaved forest of temperate zone.
-
송칠영(Cheel Young Song),장관순(Kwan Soon Chang),박관수(Kwan Soo Park),이승우(Seung Woo Lee) 한국산림과학회 1997 한국산림과학회지 Vol.86 No.1
This study has been carried out to estimate carbon fixation, and carbon NPP based on equation form of Wt=aD^bH^c in natural stand of Quercus mongolica and Quercus variabilis in Chungju. The effect of improvement of environment was also evaluated by estimating sink of CO₂ gas in forest ecosystem of Korea in a year. The following effects have been obtained in analysing estimate of allometric equation. Equation form of Wt=aD^bH^c was the most adequate, those of Wt=a(D²H)^b, Wt=aD^b estimate of the biomass and the carbon fixation in Quercus natural stand of Chungju. Total above ground of Quercus mongolica was 130.58 t/㏊ and that of Quercus variabilis was 137.38 t/㏊. Annual production of two stands was 9.96 t/㏊/yr, 8.64 t/㏊/yr, respectively. Carbon fixation of total above ground was 60.521 C/㏊ in Quercus mongolica stand, and was 62.22t C/㏊ in Quercus variabilis stand. Annual fixation of carbon was 4.78t C/㏊/yr and 4.28t C/㏊/yr, seperately. Annual emission of carbon estimated 2.44t C/㏊/yr in contrast of forest area in Korea. It was showed that the annual fixation of carbon was higher 1.84t C/㏊/yr∼2.34t C/㏊/yr than annual emission of carbon. But foliage was 2.391 C/㏊/yr and 1.89t C/㏊/yr, which occupied 40% and 50% of annual carbon fixation of total above ground. Annual carbon fixation may fluctuate about 1.89t C/㏊/yr∼2.39t C/㏊/yr by seasons.
-
朴範鎭,宋七永,金宣我,李寅世,李承雨,전양,李旭 忠南大學校 環境問題硏究所 1996 環境硏究 Vol.14 No.-
Growth analysis of Quercus mongolica and Juglans manshurica was carried out in Chungju experimental forest, Chungnam National University. Quercus mongolica stand is natural and Juglans manshurica stand is plantation. Average age is 67 and 25 years, respectively. Average tree of each species was selected and after diameter measuring disks were taken at 30㎝ from the ground. The number of annual rings were counted and ratio of root collar diameter(RCD) was calculated. Tree hight was estimated with the equation of root collar diameter and T-test was followed. Individual tree volume of each ages was computed with Smalian's equation and growth ratio of individual tree volume was calculated. Equation form of growth ratio was ??=(??-??)/?? × 100; ?? is growth ratio in %, ?? is RCD, Hight and volume in measuring in cm, m, ㎥, di is RCD, Hight and volume after n(=5) years from the time measured in cm, m, ㎥ and estimate equation of hight was H-??; H is tree hight in m, a is a constant, b is an exponent. Values of measurement and estimate was compared with T-test resulted with no significant difference at P≤0.05. Stand stock was 130.88㎥/ha in Quercus mongolica and 66.05㎥/ha in Juglans manshurica. Annual growth ratio of components were as follows in beginning five years; increment ratio of RCD was 118.45%, growth ratio of tree hight was 56.57%, growth ratio of tree volume was 3649.99% in Quercus mongolica, respectively and in Juglans manshurica, increment ratio of RCD was 189.41%, growth ratio of tree hight was 98.24%, growth ratio of tree volume was 8506.85% respectively. In recent five years, annual growth ratio of components were as follows; increment ratio of RCD was 2.88%, growth ratio of hight was 1.96%, growth ratio of tree volume was 8.52% in Quercus mongolica, respectively and in Juglans manshurica, increment ratio of RCD was 3.39%, growth ratio of hight was 2.49%, growth ratio of tree volume was 10.53% respectively. From the result of growth analysis, Annual growth ratio in beginning and recent five years were shown higher in plantation of Juglans manshurica than in Quercus mongolica in all part of RCD, hight and individual tree volume. We knew that the increment of individual tree volume depended upon the ratio of beginning growth. Therefore, the success of effective forest management relied upon if it could improve beginning growth and how long could it be continued to maintain the ratio of beginning growth.
RISS
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
