CAJ | 학술논문

利用数字地面高程模型进行子流域划分,提取反映喀斯特地貌形态的7个地形因子--高程、坡度、地形起伏度、地形粗糙度、地表切割深度、高程变异系数和地形指数,提出根据地形因子特征值进行喀斯特地貌类型判别方法.以贵州省后寨河流域为例,在划分的18个流域中,选取16个流域通过单个地形因子特征值相关分析和多个地形因子特征值模糊聚类分析,确定峰丛-洼地和峰林-盆地地貌类型判别的阈值,选取另外两个流域进行判别方法检验.结果表明:基于地形因子特征值可定量判别出喀斯特流域不同地貌类型.
이용수자지면고정모형진행자류역화분,제취반영객사특지모형태적7개지형인자--고정、파도、지형기복도、지형조조도、지표절할심도、고정변이계수화지형지수,제출근거지형인자특정치진행객사특지모류형판별방법.이귀주성후채하류역위례,재화분적18개류역중,선취16개류역통과단개지형인자특정치상관분석화다개지형인자특정치모호취류분석,학정봉총-와지화봉림-분지지모류형판별적역치,선취령외량개류역진행판별방법검험.결과표명:기우지형인자특정치가정량판별출객사특류역불동지모류형.
In this paper, digital elevation model (DEM) is used to divide sub-basin and seven landform factors that affect the karst geomorphology, including elevation, slope, relief amplitude, surface roughness, surface incision and elevation variance coefficient as well as topographic index, are extracted. A method of terrain factor eigenvalue is proposed for categorizing karst landform. Houzhai basin was chosen to be divided into eighteen basins. Sixteen basins were selected to distinguish their landform type, and the other two are chosen for the method verification. The statistical analysis of a single landform factor and fuzzy cluster analysis of multi-landform factors of the landform factor eigenvalue are carried out in order to determine the threshold of the peak cluster and peak forest landform in the Houzhai basin. The results demonstrate that the method based on landform factor eigenvalue is suitable for quantitative categorization of karst basin landform.