基于gis的克罗地亚Miljevci喀斯特高原白云石密度分析

IF 1 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Acta Carsologica Pub Date : 2022-05-20 DOI:10.3986/ac.v51i1.10465

N. Lončar, I. Grčić

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引用次数: 0

摘要

白云石密度及其空间分布分析是岩溶地形形态结构分析的方法之一。基于数字高程模型(DEM)对米列耶夫奇喀斯特高原地貌特征、线空间分布及其相互关系进行了研究。在研究区共绘制了286条线。采用了白云石密度分析。结果表明，该区域的空间分布呈簇状分布。确定了两个较大的区域，密度分别为30和34条线/平方公里。它们沿河谷的分布可能表明古水系的存在。doline密度与地形的最密切联系是坡度和垂直起伏解剖，而doline数量则随着坡度和相对起伏的增加而减少。这种分布证实了无活动排水的岩溶高原适合形成白云岩。

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GIS-based analysis of doline density on Miljevci karst plateau (Croatia)

The doline density and their spatial distribution analysis is one of the methods used for karst relief morphostructural analysis. We present the results of morphometric features, doline spatial distribution and their relationship on Miljevci karst plateau based on digital elevation model (DEM). Altogether, 286 dolines were mapped in the study area. The doline density analysis has been applied. The results show that the doline spatial distribution is clustered. Two larger areas with densities of 30 and 34 dolines/km2 are determined. Their distribution along the river canyons could indicate the existence of a palaeodrainage network. The strongest link between the doline density and topography is with inclination and vertical relief dissection, whereas the number of dolines decreases with an increase of slope inclination and relative relief. Such distribution confirms the suitability of karstic plateaus without active drainage for doline formation.

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来源期刊

Acta Carsologica 地学-地球科学综合

CiteScore

1.50

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Karst areas occupy 10-20 % of ice-free land. Dissolution of rock by natural waters has given rise to specific landscape and underground. Karst surface features and caves have attracted man''s curiosity since the dawn of humanity and have been a focus to scientific studies since more than half of millennia. Acta Carsologica publishes original research papers and reviews, letters, essays and reports covering topics related to specific of karst areas. These comprise, but are not limited to karst geology, hydrology, and geomorphology, speleology, hydrogeology, biospeleology and history of karst science.