韓國의 草地地下部의 生態에 관한 硏究 = An ecological study of the underground part on the grassland vegetation in Korea

국문 초록 (Abstract)

著者는 1972 : 4월부터 1972년 10월에 걸처서 3個地所(약간 濕한곳, 中性地, 乾性地)에서 主要草地의 地下部生態에 관한 조사결과는 다음과 같다.
1) 한국의 主要草地(억새-조릿대 군집, 억새-고사리 군집 보리사초-갯멧군집)에서 억새, 새, 잔듸, :, 고사리, 조릿대, 보리사초의 根系에 差異가 있었다.
2) 吸收系로서 각 種別로 地下部의 深度에 差異가 있었다.
3) 地下部 根群의 ecological Niche difference를 認知할 수 있었다.
4) 각 種別의 root pattern에 있어서 각 조사지소 마다 토양단면층, 根系, 根莖 과 뿌리의 重量比, 뿌리의 數에 있어서 뚜렷한 分化度를 나타냈다.
5) 地下部 生産構造는 地下 10cm 內外에서 높은 値를 나타냈다.
6) 토양환경요인이 각 조사지소 마다 뚜렷한 差異를 나타냈다.
즉 지하부의 生態的變移는 立地의 토양환경요인의 勾配와 밀접한 관계가 있어 地下部의 分化度에 差異를 가져왔다고 사료된다.

다국어 초록 (Multilingual Abstract)

Ecolgical studies of the underground part on the main grassland vegetation (Miscanthus sinensis-sasa purpurance Community, Miscan-thus sinensis-pteridium aquilinum Communty, and carex Kobomugi-Calystegia Soldamella Community) were caried out from April, 1972 to October, 1972 at three sites (a little wetted, neutralized soil, and sand ydune).
The results obtained are as follows;
1. The distribution pattern of the root system of the most prominent herb's (Miscanthus Sinensis, Arundinella hirta, zoysis japonica, Imperata cylindrica, Pteridium aquilium, sasa purpurascens, and Carex Kobomugi) were observed.
2. Considerable differences in the depth in which the root system went among the most prominent herbs as well as differences in the absorption system at each of the sites was observed.
3. Ecological niche differences of the umderground root's of the different herbs can be recognized.
4. The root patterns of the main herbs showed a distinct degree of differentiation in the root system, the weight ratio of the rhijomes and roots, the number of roots, and the soil profile at each of the sites.
5. The productivity of the underground part showed the highest numerical value at the depth of 10 cm.
6. There were many differnces in the soil elements among the three investigated sites.
There was a high correlation between the soil environmental elements and the root patterns at each of the sites.
It has been found that there were differnces in the degree of differentiation of the underground part related to the soil environmental gradiant.