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섬바디의 물질생산력 광합성 및 하고현상에 관한 생리생태학적연구
장남기,조기연 ( Nam Kee Chang,Ki Yeon Cho ) 한국축산학회 1977 한국축산학회지 Vol.19 No.6
This study was performed to find the effects of environmental factors on the seasonal changes of the matter production and of Dystaenia takesimana population in Seoul area in 1975. The peak value of standing crops of above-ground parts was 1,428.5 D.M. g/㎡ on October 27. The maximum productivity of above-ground parts was 55.21 D.M. g/㎡/day on July 38 to August 4 and that of under-ground parts was 26.72 D.M. g/㎡/day on July 18 to 28. The low productivities of above-ground parts were -17.47 D.M. g/㎡/day late in June and -48.42 D.M. g/㎡/day early and late in August. And those of under-ground parts were -31.9 D.M. g/㎡/day early in August and -14.5 D.M. g/㎡/day late in August. The range of optimum temperature of photosynthetic activity was from 17℃ to 19℃. The threshold of photosynthetic activity under the condition of relative maximum water holding capacity of 75% was 55㎎/dm²/hr. Summer decline phenomena of the matter production eras due to the high temperature and drought. This phenomena for Dystaenia takesimana was evidiently shown late in June and early sin August.
金化三個 地區 草地의 土壤成分과 草地生産成에 關한 硏究
朴奉奎,張楠基,吳智泳 梨花女子大學校 韓國生活科學硏究院 1970 韓國生活科學硏究院 論叢 Vol.5 No.-
이 조사는 金化 地區 三個 草地를 대상으로 하여 草地土壤의 無機養料의 含量과 Productivity의 변동과의 관계를 밝히려고 연구 하였으며, 그 結果는 다음과 같다. (1) 金化 三個草地의 식물상은 사곡里에서 32種으로 각각 構成되어 있었다. (2) 사곡里 草地의 현존량은 229.88∼454.15g/㎡이고, 와수里 草地는 338.52454.15g∼431.71g/㎡이었으며, 육단里 草地는 137.31∼220.45g/㎡ 이었다. (3) Daily prouctivity는 사곡里 草地가 4.12g/㎡로 가장 높고 육단里의 1.04g/㎡가 가장 낮았다. (4) 一般的으로 金化 地區의 草地 生産性은 7, 8月에 가장 높고 9, 10月이 되면 차차 減少하는 경향을 나타내었다. (5) Daily productivity는 土壤有機物, 總窒素, 有效燐酸의 含量水準이 높을수록 크며, 낮을수록 그 含量이 낮다. (6) 일순생산율은 土壤의 含水量이 높을때 높았다. The vascular flora of grassland in Sagok-ri, Wasoo-ri, and Yukdan-ri, Kimwha were composed of 39,28, and 32 species respectively. The most important of which were Arundinella hirta hirta in Wasoo-ri and Yukdan-ri and Miscanthus sinensis in Sagok-ri. Theses two species contributed greatly to the standing crop of live material which was in excess of 146.4/m^2 throughout the growing season. The daily throught the growing season ranged from 1.04g/m^2(Yukdan-ri) to 4.12g/m^2(Sagok-ri). Among grasslands in Kimwha, phosphorous and water content of Sagok-ri were also high.