Sediment production in flysch badlands: A case study from Slovenian Istria

IF 1.3 4区地球科学 Q3 GEOGRAPHY, PHYSICAL

Acta Geographica Slovenica-Geografski Zbornik Pub Date : 2020-05-26 DOI:10.3986/ags.6721

G. Kovačič

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引用次数: 1

Abstract

This article deals with the results of seven years of measurements of sediment release from the flysch badlands in the Rokava River headwaters. Measurements of sediment production were carried out in erosion plots, and measurements of cliff (or rockwall) retreat using erosion pins. Selected meteorological time series from the Portorož Airport meteorological station were included in the analysis. The calculation showed that from 2008 to 2015 (149 measurements) sediment production was 36 kg/m² per year and the flysch cliff retreated by 146 mm or 21 mm per year. The amount of sediment produced is moderately positively correlated with the number of days between successive measurements (r = 0.51), with a recorded daily transition of air temperature over/below 0 °C (r = 0.56) and slightly more weakly correlated with the precipitation amount (r = 0.45). On the other hand, the amount of sediment produced has a low negative correlation with average air temperature (r = −0.29) and average minimum air temperature (r = −0.30). However, no statistically significant correlation was calculated between the amount of sediment produced and average wind speed.

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复理石质荒地的沉积物生成:来自斯洛文尼亚伊斯特拉的案例研究

本文讨论了罗卡瓦河源头复理石质荒地7年来泥沙释放量的测量结果。泥沙产量的测量是在侵蚀地块进行的，悬崖(或岩壁)后退的测量是使用侵蚀销钉进行的。选取波尔托罗罗夫机场气象站的气象时间序列进行分析。计算结果表明，2008 ~ 2015年(149次)产沙量为36 kg/m²/年，复理石崖退缩146 mm /年，退缩21 mm /年。产沙量与连续测量之间的天数呈中等正相关(r = 0.51)，与记录的气温高于或低于0°C的日变化(r = 0.56)呈弱相关(r = 0.45)。另一方面，产沙量与平均气温(r = - 0.29)和平均最低气温(r = - 0.30)呈低负相关。然而，产沙量与平均风速之间没有统计学上显著的相关性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Geographica Slovenica-Geografski Zbornik 地学-地质学

CiteScore

2.60

自引率

35.30%

发文量

审稿时长

>12 weeks

期刊介绍： Acta geographica Slovenica publishes original research papers from all fields of geography and related disciplines, and provides a forum for discussing new aspects of theory, methods, issues, and research findings, especially in Central, Eastern and Southeastern Europe. The review accepts original research papers and review papers. Papers presenting new developments and innovative methods in geography are welcome. Submissions should address current research gaps and explore state-of-the-art issues. Research based on case studies should have the added value of transnational comparison and should be integrated into established or new theoretical and conceptual frameworks. The target readership is researchers, policymakers, students, and others who are studying or applying geography at various levels. Submissions are accepted in English or Slovenian.