낙동강(洛東江)의 하천형상(河川形狀)에 對한 硏究 = A study on river shape for NAK-DONG River

국문 초록 (Abstract)

하천형상에 대하여 그 방향은 하천지형학(pclamlolocal)적인 부분을 중심으로해서 연구코자하며, 우리 나라 면적의 1/4에 해당하는 낙동강 유역의 지형적인 특성을 현지 답사와 참고문헌과 여러가지 자료를 사용해서 조사·검토하였는데 특히 각 수위표지점 (水位標地點), 합류지점 (合流地點), 수력지점 (水力地點) 및 범람평원 등은 현지답사를 해서 도표작성으로 특성을 구명 (究明)했으며 유로연장, 유역면적은 U. S. A. Army Map Scale 1:50,000에서 축척으로 측정하고 참고자료와 비교해서 얻어진 것으로 하천의 평균폭, 하천형상계수, 하천밀도를 계산했으며 평균고도(平均高度)는 1:50,0)00 지도상에서 얻어서 각 유역의 특성을 나타내었다. 이와 같이 보다 이론 적인 근거하에서 과학적으로 조사·검토한 결과 上流部에는 上流部에는 浸蝕이 甚하며,中,下流部에는 ??積平原과 扇狀地가 많고, 下流部에는 三角州 形成으로 因한 金海의 大平原을 이루고 있다는 것, 上流部 河谷은 V字形이고, 中, 下流部에는 大部分이 矩形과 梯形의 混合形이며 小數의 V字形도 存在한다는 것, 海低浸蝕에서 始作되어 壯年期 河川에 속한다는 것 等을 알았다. 위와 같은 緖果를 洛東江流域開發에 適用하고자 한다.

다국어 초록 (Multilingual Abstract)

This present writer, I have brought hight to study for river-situation at about potamological chracteristic.
As to the topograhical traits of NAK-DONG river basin to be Coresponded with one fourth 1/4 of the whole area of our country, I have studied with the detail investigation through the exploration, reference books site and som other studying materials.
As a result of such researches, particularity for the each watergauge, a confluence-hydro-power site and flood plain and etc, I have brought light to study the special quality, with the list of drawing as the result of site exproration with checking of crosscut figure and alluvial cone.
For the length of river sod the area river, they have been measured with U. S. A army map scale 1 : 50,000 compared with the soures of conference, the average width of river, the shape factor of river and river density were calculated and the average higher altitude was measured as 1:50,000 on the map, and that the relation between the average altitude and distance has been appeared with river basin traits after there ablaind by the crosscut lines.
Beside this, some ofter items of subject has been brought light on a study, making the most of use with known reports and a library books of reference.
As of the above descriptions, under more further reasonable and theorectical. babes, this river basin has been reconsidered to study scientifically and its results are as fllow. In the part of upper stream, there is cavered with erosion, and in the middle plain and alluvial cone and in down sid, these is composed with' kim, Hae's great large plain to be consisted of a delta-shaped.
The upper stream is formed V letter shaped and the middlledown stream is formed with a conbined shape of a rectangle and trapezoid, I found that there is excisted a few V letter shaped and there is belonged to the prime of life for river's if it were used to begin from the sea-erosion. With the above results, I hereby would like to apply to the development of NAK-DOHG river basin.