摘要
陕西省榆林市石窟寺分布范围广,总共225处,保存至今的有98处。石窟寺的分布与诸多因素有关,本文利用1∶20万地质数据集和30 m分辨率DEM(digital elevation model)地形数据分析榆林石窟的开凿环境,研究石窟寺与河流沟谷及地层岩性的关系。利用核密度分析和标准差椭圆方法分析研究区石窟寺文化遗址的聚集程度以及石窟寺的分布方向和格局。综合研究区地貌、地层岩性和地层分区信息,探究榆林石窟寺分布依附的地质环境。通过研究得出:(1)榆林市石窟寺整体呈现不平衡的分布特征,石窟寺主要分布在榆林市河流水系发育最好的地方。(2)榆林市石窟寺分布格局与河流沟谷方向一致,随着沟谷缓冲区距离的增加,石窟寺数量呈递减的趋势。(3)榆林市石窟寺的分布与地层岩性有关。(4)榆林市整体上分别为5个地层大区,每个地层大区石窟寺分布数量不同。
There are 225 cave temples in Yulin,and 98 of them have been preserved so far.The distribution of cave temples is related to many factors.This paper analyzes the excavation environment of Yulin Grottoes by using 1∶200,000 geological data sets and 30-meter resolution DEM(digital elevation model)topographic data,and studies the relationship between cave temples,river valleys and stratum lithology.In this paper,the nuclear density analysis and standard deviation ellipse method are used to analyze the gathering degree of cave temple cultural sites and the distribution direction and pattern of cave temples in the study area.Based on the geomorphology,stratigraphic lithology and stratigraphiczoninginformation of the study area,the geological environment of Yulin Grottoes Temple is explored.The results show that:(1)Grottoes in Yulin are distributed in anunbalanced way,and the grottoes are mainly distributed in the places with the best river system development in Yulin.(2)The distribution pattern of grottoes in Yulin is consistent with the direction of river valleys,and the number of grottoes decreases with the increase of the distance from the valley buffer zone.(3)The distribution of cave temples in Yulin is related to stratigraphic lithology.(4)As a whole,Yulin City is divided into five stratigraphic regions,and the distribution number of cave temples in each stratigraphic region is different.
作者
卢斌荧
高雅慧
Lu Binying;Gao Yahui(Shaanxi Provincial Transport Planning Design and Research Institute Co.,Ltd.,Xi'an 710065,China;School of Geography and Tourism,Shaanxi Normal University,Xi'an 710119,China)
出处
《科技通报》
2023年第9期1-6,共6页
Bulletin of Science and Technology
基金
国家社科基金项目(14ZDB031)。
关键词
石窟寺
地层岩性
缓冲区分析
空间分布
陕西榆林
cave temple
stratum lithology
buffer analysis
spatial distribution
Yulin City of Shaanxi Province
