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RISS 인기검색어
- 검색키워드
- 저자 : 선순화 ( Chung Suk Kim (검색결과 5 건)
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김준호,선순화,이석구,김정석 ( Joon Ho Kim,Soon Hwa Sun,Suk Koo Lee,Chung Suk Kim ) 한국산림과학회 1977 한국산림과학회지 Vol.35 No.1
The productive structure and the productivity of ×Populus albaglandulosa plantations, where are middle parts of the Korean peninsula, were studied by means of stratifying clip technique and of allometry. The densities of stands in the sample areas were 693 trees/ha in 6 year-old plantation and 527 or 625 trees/ha in 9 year-old one. The photosynthetic part of the productive structure was not shown normal conical form but layering. So this was efficient to transmit solar radiation into the stand floor. The standing crop of the terrestrial parts of 6 year-old plantation was 18.11 ton/ha and that of 9 year-old one 38.8 to 47.3 ton/ha. The wood volume to trunk to 6 year-old was 31.3㎥/ha and that of 9 year-old was 68.8 to 83.9㎥/ha. The annual net production of 6 year-old plantation was 4.8 ton/ha/year and that of 9 year-old one was 10.0 to 11.7 ton/ha/year and its wood volume of trunks was 17.9 to 21.1 ㎥/ha/year. In the 9 year-old plantation the standing crop or the annual net production was different between two sample areas. This seemed that the cause was not due to chemical character but to physical character of soil.
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× Populus albaglandulosa 의 수액류속도 (樹液流速度)
김정석,선순화,황진성 ( Chung Suk Kim,Soon Hwa Sun,Jin Sung Hwang ) 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1
To obtain some informations for the water supply problems of ×Populus albaglandulosa, a series of experiments on the speed of sap movement in the trunk of ×P. albaglandulosa was carried out under the different tree age, soil moisture, time of day, and seasonal condition, by method of injecting of 1% Fuchsin solution. The results showed that the speed of sap movement was great in the conditions of low relative humidity, abundant leaves, and high temperature, but it was less influenced by different tree age and soil moisture.
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× Populus albaglandulosa 의 엽령별 (葉齡別) 광합성
김정석,이석구,선순화 ( Chung Suk Kim,Suk Koo Lee,Soon Wha Sun ) 한국산림과학회 1977 한국산림과학회지 Vol.34 No.1
×Populus albaglandulosa has been needed optimum stand density according to various site and its wood usage. It is assumed that optimum stand density can be estimated by investigating of response of × P. albaglandulosa to the light factor of stand. For that reason, the photosynthesis of ×Populus albaglandulosa grown under the controlled planting density was studied in relation to its leaf age by the aid of the Infrared gas analyzer. Rate of net photosynthesis was smaller in matured leaves than young leaves below 8℃, while, it was larger than young leaves above 8℃. Temperature for the maximum net photosynthesis of young leaves and old leaves was about 30℃ and 25℃ respectively. Saturated light intensity varied slightly as leaf age from 28 Klux to 35 Klux, but net photosynthesis rate in the range of light intensity showed deep differences. Old leaves marked the lowest rate, 1.6 CO₂ ㎎/d㎡/hr, young leaves marked the medium rate, 1.7 to 2.2 CO₂ ㎎/d㎡/hr, and matured leaves marked the most efficient photosynthesis, 2.9 to 3.5 CO₂ ㎎/d㎡/hr. Young leaves of 5 days old had the highest light compensation point, while matured leaves of 35 days-old had the lowest point. Rates of dark respiration in both young leaves and old leaves were higher than that of matured leaves. Trees which were planted at space 80㎝ × 80㎝ showed productive assimilation function over the one-third of height where relative light intensity is 35%.
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김정석,이석구,안학수,선순화,Kim, Chung-Suk,Lee, Suk-Koo,Ahn, Hak-Soo,Sun, Soon-Wha 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1
The uptake ratio of supplying $P^{32}$ labelled double superphosphate and the hastening efficiency of the uptake by addition of magnesium sulfate to the fertilizer were studied on the ${\times}Populus $ albaglandulosa planted with 0/1 cutting in 1975. The results are summerized as follows. 1. Average 13% of supplying double superphosphate was absorbed into ${\times}Populus$ albaglandulosa planted on the reddish heavy clay soil in Institute of Forest Genetics. 2. The accumulation of absorbed magnesium was more amount in leaf than in stem. 3. The uptake ratio of supplying double superphosphate was able to increase up to 16%~33% by the addition of magnesium sulfate to the fertilizer. 4. It might be possible to increase the tree growth following the acceleration of photosynthesis due to the increasing amount of magnesium known to be a component of chlorophyll in leaf as well as to hasten the efficiency of uptake of phosphorus by the addition of magnesium to double superphosphate. 1975년(年) ${\times}$ P. albaglandulosa(은수원사시나무) 0/1묘(苗)를 식재(植栽)하고 방사성동위체(放射性同位體) $P^{32}$-표식(標識) 인산질비료(燐酸質肥料)의 흡수율(吸收率)과 유산고토(硫酸苦土)의 첨가(添加) 시용(施用)에 의(依)한 인산질비료(燐酸質肥料)의 흡수이용촉진효과(吸收利用促進?果)를 시시(試試)한바 다음과 같이 간추릴수가 있었다. 1. ${\times}$ P. albaglandulosa(은수원사시나무)는 구내(構內) 적색계(赤色系) 중점토(重粘土)에서 시용인산질비료(施用燐酸質肥料)의 평균(平均) 13%정도만이 흡수이용(吸收利用)하고 있었다. 2. 흡수(吸收)된 고토분(苦土分)은 줄기보다 주(主)로 잎에 많이 축적되었다. 3. 유산고토(硫酸苦土)를 첨가시용(添加施用)하므로써 시용인산(施用燐酸)의 흡수율(吸收率)은 16~33%선(線)까지 증진(增進)시킬수 있었다. 4. 유산고토(硫酸苦土)를 인산질비료(燐酸質肥料)와 병용(倂用)하므로써 인산(燐酸)의 흡수(吸收), 이용율(利用率)을 증진(增進)시킬뿐만이 아니라 엽록소(葉綠素)의 구성성분(構成成分)인 고토분(苦土分)의 엽내(葉內) 축적량증대(蓄積量增大)는 동화량촉진(同化量促進)과 연결(連結)되어 생장량(生長量)의 증대(增大)도 고려(考慮)될수가 있겠다.
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방사성동위체를 이용한 × Populus albaglandulosa 의 인산흡수상에 관한 추적연구 (Ⅰ) - 고토시용이 (苦土施用) 식물체내의 인산함유율에 미치는 영향 -
김정석,이석구,안학수,선순화 ( Chung Suk Kim,Suk Koo Lee,Hak Soo Ahn,Soon Wha Sun ) 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1
The uptake ratio of supplying P³² labelled double superphosphate and the hastening efficiency of the uptake by addition of magnesium sulfate to the fertilizer were studied on the ×Populus albaglandulosa planted with 0/1 cutting in 1975. The results are summerized as follows. 1. Average 13% of supplying double superphosphate was absorbed into × Populus albaglandulosa planted on the reddish heavy clay soil in Institute of Forest Genetics. 2. The accumulation of absorbed magnesium was more amount in leaf than in stem. 3. The uptake ratio of supplying double superphosphate was able to increase up to 16%∼33% by the addition of magnesium sulfate to the fertilizer. 4. It might be possible to increase the tree growth following the acceleration of photosynthesis due to the increasing amount of magnesium known to be a component of chlorophyll in leaf as well as to hasten the efficiency of uptake of phosphorus by the addition of magnesium to double superphosphate.
ScienceON
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