...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geologia USP : Série Científica >Avalia?§?￡o de suscetibilidade ?? eros?￡o e movimenta?§?￡o gravitacional de massa no Parque Estadual do Juquery, Franco da Rocha (SP)
【24h】

Avalia?§?￡o de suscetibilidade ?? eros?￡o e movimenta?§?￡o gravitacional de massa no Parque Estadual do Juquery, Franco da Rocha (SP)

机译：敏感性评估弗朗哥·达·罗沙（SP）的Juquery国家公园的水土流失和群众运动

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The area of this study is the State Park of Juquery, located in the city of Franco da Rocha, Metropolitan Region??of S?￡o Paulo, Brazil, characterized by a protected area of a remnant cerrado. This protected area has registered??problems caused by flooding processes, mass movements and hydric erosion. Based on this framework, this study??aims to evaluate the susceptibility to linear erosion and soil and rock slides, and support the planning and management??of the physical environment of the that conservation unit. The mapping performed in the scale of 120.000??subdivided the area of study in six geological-geotechnical unit, whose results have fostered the evaluation of??susceptibility to geological processes concerned. The susceptibility assessment analyzed the possibility of morpho-dynamic processes in relation to the geological and geotechnical characteristics and was carried out in a qualitative manner with application of graphical analysis method, which is based on the combinatory analysis of variables of interest. To this end, geoprocessing techniques, field surveys and graphical analysis were used. As a result, maps of susceptibility to erosion and landslide processes are presented. The erosion map shows that 95% of the park area has moderate susceptibility to the processes and 5% is considered high susceptibility. Concerning landslides, 88% has low sensitivity and 12% is considered moderate susceptibility. Two points of interest were identified, a gully at the west end, and a road with widespread ravines. It is concluded that linear erosion are the main geological-geotechnical problems of the State Park of Juquery, arising from natural characteristics of the physical environment and aggravated by the absence of vegetation cover and precariousness of roads and trails within the conservation unit.??.
机译：本研究的区域是Juquery国家公园，它位于巴西圣保罗大都会地区的Franco da Rocha市，其特征是保留的塞拉多地区。该保护区记录了由洪水过程，群众运动和水蚀引起的问题。在此框架的基础上，本研究旨在评估线性侵蚀和土壤和岩石滑坡的敏感性，并支持该保护单位物理环境的规划和管理。以120.000英尺的比例尺进行的制图将研究区域划分为六个地质-地质技术单位，其结果有助于评估相关地质过程的敏感性。敏感性评估分析了地貌动力学过程与地质和岩土特征有关的可能性，并通过基于感兴趣变量的组合分析的图形分析方法以定性的方式进行了评估。为此，使用了地理处理技术，现场调查和图形分析。结果，给出了对侵蚀和滑坡过程的敏感性图。侵蚀图显示，公园区域的95％对过程具有中等敏感性，而5％被认为是高度敏感性。关于滑坡，88％的敏感性较低，12％被认为是中等敏感性。确定了两个景点，西端的一条沟壑和一条沟壑广泛的道路。得出的结论是，线性侵蚀是Juquery国家公园的主要地质-地质技术问题，其源于自然环境的自然特征，并且由于缺乏植被覆盖以及保护单元内道路和小径的不稳定性而加剧。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号