낙동강(洛東江)의 하천형세(河川形勢)에 대한 연구(Ⅰ) = A Study on River-situation for NAK-DONG River.

국문 초록 (Abstract)

하천형상에 대하여 그 방향은 하천지형학(Potamological)적인 부분을 중심성으로 해서 연구코자 하오며, 우리 나라 면적의 1/4에 해당하는 낙동강 유역의 지형적인 특성을 현지답사(現地踏査)와 참고문헌과 여러가지 자료를 사용해서 조사 검토 하였는데 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(流路延長), 유역면적(流域面積)은 U. S. A Army Map Scale 1;50,000에서 축척으로 측정하고 참고 자료와 비교해서 얻어진 것으로 하천의 평균폭, 하천형상 계수, 하천밀도를 계산했으며 평균고도(平均高度) 1;50,000 지도상에서 얻어서 각 유역의 특성을 나타내었다.
이와 같이 보다 이론적인 근거하에서 과학적으로 조사 검토한 결과 본 유역 면적의 대소와 대소 지류(支流)의 배치가 방사선상(房射線狀)과, 우상(羽狀)의 혼합으로 되어있다는 것과, 1km당 315m길이의 하천이 놓여 있다는 것, 불양배수류(不良排水流)이라는 것, 포물선(抛物線)에 가까운 평균종단곡선(平均縱斷曲線)을 이루고 있다는 것을 알았다. 위와 같은 기본 연구로써 洛東강 유역 개발에 적용코자 한다.

다국어 초록 (Multilingual Abstract)

This present writer, I have brought hight to at study for river-situation at about potamological characteeristic.
As to the topoaraphical traits of NAK-DOfG 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 some other studying materials.
As a result of such researches, particularily for the each water-gauge, a confluence site, hydro-power site and flood plain and etc, I have brought light to study the special guality with the list of drawing as the result of site exporation with checking of crosscut figure andall uvial cone.
For the length of river and the area of 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 1:50,000on tile map, and that the relation between the average altitude and distance has been appeared with each river basin traits after there abtaind by the crosscut lines.
Beside this, some ather items of subject has been brought light on a study, making the mostof use with a known reports and a liburary books of reference.
As of the above descriptions, under more further reasonable and theoretical bases, this river basin has been reconsidered to study scientificallly and its results are as follows;
This consists of the large and small of main river area and the dispatch of branch river is made of conbined radial form and pinnate form.
The each river covers one square ㎢ for the length of 315 meters.
This is belonged a kind of bad swearage for a swift stream.
It means to be composed with average vertical section parabola
with the above results,
I here by would like to apply to the development of NAK-KONG river basin.