| 雅安市雨城区壶穴形态特征 |
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| 引用本文： | 唐笛,马至敏,廖紫伊,漆力健.雅安市雨城区壶穴形态特征[J].云南地理环境研究,2019(1):55-60. |
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| 作者姓名： | 唐笛 马至敏 廖紫伊 漆力健 |
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| 作者单位： | 四川农业大学水利水电学院 |
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| 基金项目： | 四川省教育厅资助科研项目(16ZB0046) |
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| 摘 要： | 以雅安市雨城区的严桥河和周公河流域的河床壶穴为研究对象,对128处壶穴形态规模与几何参数进行详细测量。运用定量统计方法分析壶穴的分布规模和形态特征。结果表明:周公河流域壶穴大多分布在岸边大石块上,严桥河流域壶穴主要分布于河床的岩坎上;两地壶穴平均分布密度为0.43个/m2,相对其他区域较小,且壶穴的长短轴和平均口径与深度都有相对明显的规律。在平面形态上,壶穴形态多样,周公河以近圆型壶穴最多,占52.5%,严桥河以椭圆型壶穴最多,占63.6%。在垂直剖面形态上,周公河处壶穴90%属于U型,其余为V型;严桥河处壶穴V型和U型分别占52.3%和44.3%,还有3.4%属倒Ω型;两地壶穴都以浅型为主。
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| 关 键 词： | 河床壶穴 形态 雨城区 |
MORPHOLOGICAL CHARACTERISTICS OF POTHOLES IN YUCHENG DISTRICT OF YAAN CITY |
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| TANG Di,MA Zhi-min,LIAO Zi-yi,QI Li-jian.MORPHOLOGICAL CHARACTERISTICS OF POTHOLES IN YUCHENG DISTRICT OF YAAN CITY[J].Yunnan Geographic Environment Research,2019(1):55-60. |
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| Authors: | TANG Di MA Zhi-min LIAO Zi-yi QI Li-jian |
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| Institution: | (College of Water Resources and Hydropower,Sichuan Agricultural University,Yaan 625014,Sichuan,China) |
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| Abstract: | Taking the riverbed potholes in the Yanqiao River and the Zhougong River Basin in Yucheng District,Yaan City as the research object,the size and geometric parameters of the 128 potholes were measured in detail.The distribution scale and morphological characteristics of the potholes were analyzed by quantitative statistical methods.The results show that most of the potholes in the Zhougong River Basin are distributed on the large rock masses on the banks.The potholes in the Yanqiao River Basin are mainly distributed on the rock beds of the riverbed.The average distribution density of the potholes in the two places is 0.43/m2,compared with other areas.The long axis,short axis and average caliber and depth of the potholes have relatively obvious regularity.In the plane shape,the shapes of the potholes are diverse,the potholes in the Zhougong River are biased toward the circle,accounting for 52.5%,and the Yanqiao River has the elliptical potholes,accounting for 63.6%.In the vertical section morphology,90% of the potholes in the Zhougong River belong to the U-shape,and the rest are V-shaped;the V-shaped and U-shaped cavities at the Yanqiao River account for 52.3% and 44.3%,respectively,and 3.4% are inverted Ω;The potholes in both places are mainly shallow. |
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| Keywords: | riverb potholes shape Yucheng District |
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