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      • 孟宗竹林造成을 爲한 母竹의 植裁深度別 鞭根의 伸長및 新竹發生에 미치는 影響 (第 1 報)

        金是璟 진주산업대학교 1973 論文集 Vol.11 No.-

        本試驗의 目的은 母竹의 植栽深度가 鞭根의 伸長과 新竹發生에 미치는 影響및 成林年數의 遲速을 究明함에 있으며 그 結果를 要約하면 다음과 같다. 母竹의 植栽深度를 10cm, 20cm및 30cm로 區分하여 新竹發生과 鞭根의 伸長을 比較한바 新竹發生은 全區 모두 없었으며 鞭根의 伸長은 植栽深度 10cm區가 가장 좋았고 20cm가 다음 이었다. 그러나 試驗期間이 1年이라는 짧은 期間이기 때문에 1年間의 Data로서는 確實性이 不足하므로 繼續調査硏究하여 續報로서 發表하겠다. This examination was put to the test of purpose to studying influence of transplanting depth of mother bamboo upon the extention of Rhizome length and new bamboo shoot, the speed of a number of years for bamboo root cuttings. The results obtained from the experiments are; 1. The transplanting depth of mother bamboos were cut variouly at 10,20 and 30cm long, but new bamboo shoot was not at all and the extention of Rhizome length was higher at 10cm deep planting than 20cm, and was also higher at 20cm deep planting than 30cm. 2. For the experiment in the duration of short one year I think that have need to study continually.

      • 天然闊葉樹林의 物質生産에 關한 硏究 : 智異山 山淸地域 Sanchung Districts in Mt. Jiri

        金是璟 진주산업대학교 1986 論文集 Vol.24 No.-

        굴참나무純林과 闊葉樹混生林의 生長 및 物質生産性을 推定하므로서 天然林施業資料와 萌芽更新上의 基礎資料를 얻기 위하여 慶南 山淸地域(智異山) 海拔 750~800m 位置의 굴참나무純林과 闊葉樹混生林에 20m×20m 標準地 2個씩을 設置하여 標本木 24株씩을 伐採하였다. 그 標準地 林分의 生長, 現存量, 純生産量, 總生産量 및 에너지 效率등을 比較 分析하고 同一區內의 根株로부터 發生한 萌芽木에 대한 生産性을 推定한 結果를 要約하면 다음과 같다. 1. 林分密屠는 굴참나무純林이 5,475本/ha(16.93㎡/㏊)로서 闊葉樹混生林의 4,050本/ha(16.48㎡/㏊)보다 높았다. 2. 胸高直徑의 頻度分布는 굴참나무純林에 比하여 闊葉樹混生林이 正規分布型에 가까웠다. 3. 幹材積, 樹皮內幹材積, 樹皮材積 및 定期平均林積生長量과 D, D²H와의 相對生長式에서 굴참나무純林은 R²가 0.9以上이다. 闊葉樹混生林에 있어서는 幹材積, 樹皮內幹材積과 D, D²H와의 相對生長式에서 R²가 0.9이상으로 높았으나, 樹皮材積과 定期平均林積生長量의 相對生長式에서는 R²가 0.6~0.8로 낮았다. 4. 幹材積, 樹皮內幹材積 및 定期平均林積生長量은 굴참나무純林에서 각각 67.7, 427.7, 5.5㎥/㏊이고, 闊葉樹混生林에서는 各各 68.4, 57.5, 7.3㎥/㏊로서 闊葉樹混生林이 큰 것으로 나타났고, 樹皮材積은 굴참나무純林이 25.0㎥/㏊로서 闊葉樹混生林의 10.9㎥/㏊에 比하여 2.4倍였다. 5. D, D²H, D_B 및 D_B²H_C에 의한 각 器官別 乾重量과의 相對生長式에서 幹乾重量과 D, D²H사이에는 2林分 모두 R²가 0.9 以上으로 높게 나타났으나, 枝乾重量 및 葉乾重量과 D, D²H, D_B 및 D_B²H_C 사이의 相對生長式은 R²는 0.9以下로 나타났다. 6. 上層植生인 굴참나무純林의 줄기, 가지, 잎, 뿌리 및 全體現存量은 각각 32.05, 5.19, 2.26, 12.32, 51.82ton/ha이고, 闊葉樹混生林은 각각 31.25, 12.88, 3.60, 13.61, 61.34ton/ha였으며, 下層植生에 있어서 純林內의 地下部, 뿌리 및 全體現存量은 각각 8.12, 15.89, 24.01ton/ha이고, 混生林內에서는 각각 13.47, 22.46, 35.93ton/ha였다. 7. 上下層植生을 包含한 現存量密度는굴 참나무純林과 闊葉樹混生林이 각각 047, 0.67㎏/㎥로 混生林이 높았으며 下層植生의 現存量密度는 純林과 混生林에서 각각 0.41 0.67㎏/㎥로서 全體現存量密度와 差異가 없었다. 3. 굴참나무純林에 있어서 줄기, 가지, 잎, 뿌리 및 全體年純生産量은 각각 4.22, 0.78, 2.46, 2.34, 9.80ton/ha/yr이었고, 闊葉樹混生林은 각각 4.12, 1.46, 3.31, 2.56, 11.45ton/ha/yr로 混生林이 크게 나타났다. 9. NAR은 葉量이 적은 굴참나무純林이 3.03㎏/㎏/yr로서 葉量이 많은 闊葉樹混生林의 2.87㎏/㎏/yr 보다 크게 나타났다. 10. 굴참나무 純林의 純生産量, 呼吸量 및 總生産量은 각각 9.80, 15.40, 25.20ton/ha/yr였고, 闊葉樹混生林은 각각 11.45, 23.34, 34.7gon/ha/yr로서 混生林이 크게 나타났다. 11. 總生産量의 前年의 태양에너지 利用效率은 굴참나무純林이 1.42%, 闊葉樹混生林이 1.96%이었고 總生産量의 生育期間中의 것은 각각 2.31, 3.18%였다. 12. 萌芽1年生의 非同化器官 및 同化器官의 乾重量과 伐採前 母樹의 D²H에 의한 相對生長式에서 굴참나무純林에 있어서는 R²가 0.66以上으로 回歸係數의 有意性이 認定되었으나 闊葉樹混生林에 있어서는 推定效率이 낮아 回歸係數의 有意性은 認定되지 않았다. 13. 萌芽木 地上部現存量은 굴참나무純林이 134.35kg/ha/yr로서 闊葉樹混生林의 110.28kg/ha/yr에 비하여 컸었다. 14. 萌芽木에 대한 잎의 NAR과 幹材生産能率은 굴참나무 純林이 각각 2.56, 1.56㎏/㎏/yr 闊葉樹混生林이 각각 2.65, 1.65㎏/㎏/yr로서 混生林이 크게 나타났다. 15. 萌芽복의 純生産量, 呼吸量 및 總生産量은 굴참나무純林에 있어서는 각각 134.35, 628.57, 762.92kg/ha/yr, 闊葉樹混生林은 각각 110.28, 537.21. 647.49kg/ha/yr였다. To investigate on the growth and primary production of the pure stand of Quercus variabilis and mixed stand of hardwoods, an experiment was carried out on each stand located in Sanchung district(Mt. Jiri) Gyeongsangnam-Do. Total 2 plots for each stand were established by the quadrat(20m×20m) at elevation ranged from 750m to 800m. Twenty four trees from each stand were selected and felled for studying growth, biomass, annual net production and annual gross production. Yield of coppice shoots were also investigated in the same quadrat. Tee results were obtained as follows: 1. Stand density of mixed hardwood stand and Quercus variabilis stand showed an average of 4,0050 trees/ha and 5,475 trees/ha, respectively. 2. Frequency distribution of diameter at breast height was nearer to normal distribution in mixed hardwood stand than that of Quercus variabilis stand. 3. The allometric regression equations were made between DBH and the variables such as stem volume, stem volume without bark, bark volume and periodic annual growth. It was also made between D².H and the variables described above. The coefficient of determination was above 0.9 for the pure stand. The coefficient of determination between diameter and the variables such as stem volume and stem volume without bark, and D².H and those variables showed above 0.9 in mixed hardwood stand. but the coefficient between bark volume and periodic annual increment was above 0.6, showing relatively low value. 4. Stem volume, stem volume without bark and periodic annual increment were 67.7, 42.7 and 5.5㎥/㏊ in the pure stand, respectively. Those for the mixed hardwood stand was 68.4, 57.5 and 7.3㎥/㏊, respectively, showing relatively high value. Bark volume of the pure stand was 25.0㎥/㏊ and that of mixed hardwood stand was 10.9㎥/㏊. 5. The allometric equations using dry weight measured according to the parts of trees such as part of diameter at breast height, D².H, D_B and D²_B.H_C showed the coefficients of determination, above 0.9 among the dry weights of stem, D and D².H. But the coefficients among the branch and leaf dry weight, and D, D².H, D_B and D)B and D²_B.H_C was below 0.9. 6. Biomass including roots was 97.27ton/han for mixed hardwood stand and 75.83ton/ha for the pure stand. 7. Biomass density was 0.47㎏/㎥ for the pure stand and 0.67㎏/㎥ for the mixed stand. And biomass density of lower vegetation was 0.41㎏/㎥ and 0.67㎏/㎥ for the pure and mixed stand, respectively. 8. Annual net production including roots was 11.45ton/ha/yr for the mixed hardwood stand and 9.80ton/ha/yr for the pure stand. 9. The pure stands of Quercus variabilis having less quantity of leaves showed higher NAR, 3.03㎏/㎏/yr than of the mixed stands having more quantity of leaves, 2.87㎏/㎏/yr. 10. Annual gross production was 34.79ton/ha/yr for the mixed hardwood stand having high leaf area index and 25.20ton/ha/yr for the pure stand having low leaf area index. 11. The energy efficicency of the gross production in growth period was calculated at 2.31% and 3.18% in the pure stand and mixed stand, respectively and in whole year was at 1.42% and 1.96% same order. 12. The allometric regression equation were also made among the dry weights of assimilatory organs and non-assimilatory organs of 1-year-old coppice shoot and D².H of the stem before cutting back. The pure stand showed above 0.66 of determination coefficients which is highly significant. However the mixed hardwood stand showed no statistical significance. 13. Above ground biomass of 1year-old coppice shoots was 134.35kg/ha/yr for the pure stand and 110.28kg/ha/yr for the mixed hardwood stand. 14. The efficiency between NAR of leaves and stem production was 2.56 and 1.56㎏/㎏/yr in the coppice shoots of the pure stand, respectively, and 2.65 and 1.65㎏/㎏/yr in the mixed hardwood stand. 15. Gross production of coppice shoots was 762.92㎏/㎏.yr for the pure stand 647. 49㎏/㎏/yr for the mixed stand.

      • 왕대의 立竹密度가 新竹發生에 미치는 影響

        金是璟 진주산업대학교 1970 論文集 Vol.6 No.-

        本試驗은 넓은 面積에 걸쳐 長期間 試驗한 結果가 아니고, 1969 2,5일에 各 處理區別로 伐竹을 開始하므로서 本試驗에 着手된 것이며, 그 成績調査는 1969. 8. 20일에 實施한 것이므로 1年도 못되는 試驗 datca 여서 正確한 結果라고 간주하기 어려위 계속 硏究키로 하고 위선 一次的으로 그 試驗한 結果를 要約하면 다음과 같다. 立竹本數를 달리한 各處理區間에 있어서 新竹發生本數, 新竹發生束數 및 新竹發生平均徑等에 有意性이 認定되지 않았음은 本實驗에 着手하기 前의 親竹으로 부터 편근이 임이 伸長되어 퍼져 나갔으므로 殘存母竹의 密度가 發筍狀況에 별영향을 미치지 못한 까닭에 平年에 發筍하는 狀況과 大同小異하다고 思料된다. This examination in not the result which is put to the test in large area for a long time, but I??ut the bamboo in each treating district on the 5th of Feb. 1969 and set about it. As the investigation of records is the data was enforced on the 20th of Oct, 1969 this year. I cannot think that the result exactly enforced, so I intend to continually it In a Primary examination the result is as follows in short. In each treating district taking different stand density the development amount of new bamboo shoot, devlopment bundle of new bamboo shoot and everage diameter of new bamboo shoot was not recognized significance. Because that is before seting about this examination the bamboos root had already expanded from mothers bamboo and had stretched, and stand density of surviving mother's bamboo had not influenced upon the germindtion of bamfoo shoot; I think that is substantial identity with minor difference to germination of bamboo shoot in a normal year.

      • KCI등재
      • 白木蓮 接木의 活着에 關한 硏究

        金是璟 진주산업대학교 1968 論文集 Vol.2 No.-

        白木蓮의 效果的인 繁殖法을 模索하기 위한 하나의 試圖로서 몇가지 接木方法을 李節과 日字別로 接木하여 그 活着成績을 調査하였는데, 그 試驗結果를 要約하면 다음과 같다. 白木蓮의 接木은 腹芽接으로서 秋李 9.10∼9.15日間에 實施하는 것이 가장 活着率이 높다는 것을 認定하였다. Magnolia denudata is a flowering tree in which all people can take pleasure as an ornamental tree of which flowers give out fragrant and are neat, beautiful and elegnant. In the past time every man couldn`t easily breed it because its breeding is very difficult. So, as the attempt to grop the effective method of breeding I grafted it using several method of grafting in accordance with the season and date and investigated the result of its sirvival. The result of this study are as follows; It was recognized that the grafting of magnolia denudata to be enforced from september 10, to september 15, in autumn as “side bud grafting”and raises the rate of its sirvival.

      • 굴참나무林의 生産構造 및 物質生産力에 關한 硏究

        金是璟 진주산업대학교 1984 論文集 Vol.22 No.-

        굴참나무林의 生産構造 및 物質生産力에 關한 硏究를 爲하여 慶南 山淸郡 今西面에 位置한 晋州農林專門大學演習林의 굴참나무天然林을 對象으로 하여 生産構造와 現存量 및 生産量의 推定과 그 方法을 分析한 結果를 要約하면 다음과 같다. 1. 現存量의 推定과 使用된 相對生長式은 胸高直徑(D) 또는 胸高直徑 自乘에 樹高를 곱한 값(D^2H)을 모두 變數로 使用해도 良好한 相對生長關係가 成立되었다. 2. 各 器官別 現存量은 W_S=56.46 ton/㏊, W_B=13.73 ton/㏊, W_L=5.26 ton/㏊ 및 W_T=75.45 ton/㏊였다. 3. 年純生産量은 幹部가 4.73 ton/㏊.yr, 枝部가 1.17 ton/㏊.yr, 葉部가 0.37 ton/㏊,yr 및 年總純生産量이 6.27ton/㏊.yr였고, 年總純生産量에 대한 各 器官別 構成比率은 各各 75.4%, 18.7%, 5.9%였다. 4. 葉面積指數는 8.85 ㏊/㏊이고, 現存量密度는 1.0688 ㎏/㎥, 잎의 純同化能率은 1.2360 ㎏/㎏/yr, 잎의 幹材生産能率은 0.8992 ㎏/㎏/yr, 葉重量比는 0.0701 ㎏/㎏ 였다. To investigate production structure and productivity of Quercus variabilis, an experiment was carried out on a Quercus variabilis natural forest located at the Jinju Agricultural and Forestry Junior Technical Collage Forests in Sanchung, Gyeongnam. Objectives were to estimate production structure, standing crops and biomass yield from Quercus variabilis natural forest. Stand density was applied to the 20­year old stand and stocking level of 6600 trees per hectare. The size of sample plot was 20m×20m. In July 1983, twelve sample trees per plot selected by taking account of the DBH distribution were felled and sectioned to Im­long segments from the tree base. For biomass estimation the stratified clip method was used. The dry weight of each part of tree was estimated by the equation of allometric relation. The results obtained were a follows; 1. The variable, DBH or (DBH)^2 H can be used to estimate the dry weight of tree components aboveground. 2. The total standing crops of aboveground was 75.45 ton/㏊, which were consisted of 56.46 ton/㏊ for stems, 13.73 ton/㏊ for branches and 5.26 ton/㏊ for leaves. 3. The annual net production estimated from standing crops was shown 4.73 ton/㏊.yr for stems, 1.17 ton/㏊.yr for branches, 0.37 ton/㏊.yr for leaves, and the percentage of production of stems, branches and leaves to net production aboveground were 77.44%, 18.66% and 5.90% respectively. 4. The leaf area index, the biomass density, the net assimilation rate, the efficiency of leaf to produce stem and the leaf weight ratio were 8.85 ㏊/㏊, 1.0688㎏/㎥, 1.2360 ㎏/㎏/yr, 0.8992 ㎏/㎏/yr and 0.0701 ㎏/㎏ respectively.

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