Results 61 to 70 of about 1,349 (152)
Distribution Characteristics and Coupling Relationship Between Soil Erosion and Hydrologic and Sediment Connectivity in Changchong River Basin [PDF]
[Objective] To clarify the distribution characteristics and coupling relationship between soil erosion and hydrologic and sediment connectivity in Changchong River Basin, and to provide basis for soil erosion control and soil erosion prevention in this ...
LI Jianing +4 more
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Landslide susceptibility modeling and interpretability based on CatBoost-SHAP model [PDF]
This study is dedicated to delving deeply into the uncertainty and interpretability of ensemble learning models in landslide susceptibility modeling. Focusing on the eastern coastal mountainous region of Zhejiang Province as the study area, this research
Fan WU +4 more
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Shuitu Baochi Xuebao目的构建喜马拉雅东构造结地区大范围的多时相滑坡清单，量化滑坡侵蚀速率，揭示滑坡过程在该区域的地貌学意义。方法基于粒子群优化算法（particle swarm optimization， PSO）进行遥感影像归一化植被指数（normalized difference vegetation index， NDVI）的变化检测，构建1987-2021年东构造结地区的多时相滑坡清单；根据滑坡面积-体积经验公式计算该区域的滑坡侵蚀速率；结合气候和地形等参数，探讨滑坡过程的诱发因素。结果研究区1987 ...
耿豪鹏, 徐子怡, 郭宇, 张建
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Mountain Architecture Design Method Based on GIS [PDF]
, 2010 山地建筑学是一门综合的学科,传统的设计方法更趋向于二维的、静态的研究,缺乏定量的科学分析和先进的科技手段。本文以ArCVIEW gIS 3.2为软件平台,介绍了在山地建筑设计中引入gIS的设计思维和工作方法,旨在更为科学合理地指导建筑设计构思和创作。Mountain Architecture is a comprehensive subject.On which traditional design method has the problems of two-dimension,statics,as ...
辜克威, 黄丹丹
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Vulnerability assessment of landslide hazards based on hazard intensity at slope level: A case study in Xiangxiang County of Hunan [PDF]
Taking a slope as a unit, the regional vulnerability assessment based on potential disaster intensity is one of the important problems to be solved urgently. In this paper, the city of Xiangxiang in Hunan is selected as the research area. On the basis of
Bin CHEN +5 more
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Shuitu Baochi Xuebao, 2006 应用地理信息系统技术支持下的环境梯度分析方法，充分利用GIS强大的空间分析功能，选取了海拔、降水量、温度、坡度和坡向5个影响因子，将各环境因子分布图分别与秦岭植被类型分布图叠加，对植被分布与环境梯度的关系进行了研究及统计分析，得出结论：（1）证明植被分布与海拔、降水、温度、坡度和坡向之间是相互制约、相互影响的；（2）海拔是决定秦岭植被分布的主导生态梯度，随着海拔高度的增加，环境中的水热因子发生变化，形成水热因子的复合梯度，生境中所对应的植物种类相应改变；坡度、坡向体现了山体南仰北俯的地形特点 ...
朱晓勤, 刘康, 秦耀民
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Shuitu Baochi Xuebao, 2002 应用32P研究山地水土在不同时间、坡度、方向、深度、距离的吸收和分布规律。结果表明:1g山地土壤对32P的吸收随着深度、距离的增加而减小。土壤对32P的吸收率的最大距离为3470.7969×10-5%,最小为1.2097×10-5%;最大深度为2407.9855×10-5%,最小为0.4752×10-5%。在坡度上,磷的吸收率呈波形变化,即在15°～30°,50°～80°时随坡度的增加而减小,在30°～40°时无明显变化,在40°～50°时随坡度的增加而增加。32P的吸收率与距离、坡度、方向呈显著负相关。
强继业 李佛琳 许丽仙
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Classification optimization of geological hazard susceptibility evaluation factors based on AIFFC algorithm [PDF]
This paper addresses the issue of uncertainty in the grading of geological hazard susceptibility evaluation factors and introduces the adaptive expansion factor fuzzy coverage grading method (AIFFC) to optimize the grading of geological hazard ...
Bin CHEN +6 more
core +1 more source
Shuitu Baochi Xuebao[目的] 泻溜作为砒砂岩区典型的重力侵蚀方式,已成为沟道内重要的粗砂物质来源,严重威胁流域生态安全,明确该地区侵蚀机理对黄河流域生态保护和高质量发展战略具有重要意义。[方法] 以内蒙古砒砂岩沟坡系统为研究对象,基于野外定位监测,利用三维激光扫描技术,分析不同坡向下沟坡侵蚀界面微地形变化与侵蚀特征的时空变化规律及其与气象要素之间的响应关系。[结果] (1)砒砂岩沟坡存在明显的泻溜侵蚀现象,且坡向分异较为明显。其中,阴坡平均侵蚀面积占研究区总面积的43.11%,阳坡平均侵蚀面积占研究区总面积的45.48 ...
任亚楠 +4 more
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Shuitu Baochi Xuebao, 2008 研究了黄土丘陵区纸坊沟流域阴阳坡面及不同坡位土壤水分、物理和养分特征,结果表明,与坡顶距离越远,表层土壤含水量由小变大。阴坡蒸发量小,土壤含水量较大。容重阴坡阳坡,且随土层加深而减少。全氮和有机质在坡中下部累积。全磷在不同坡向和坡位变化不明显。速效钾在各坡位变化幅度较小且阴坡>阳坡。阴阳坡土壤各养分有向表层富集的趋势。坡面土壤容重与土壤孔隙比、活性孔度、毛管含水量和有机质呈极显著负相关,与土壤非活性孔度和表层土壤含水量呈显著正相关,土壤有机质和土壤全氮、速效钾呈极显著正相关。在对坡面进行植被恢复时 ...
周萍, 刘国彬, 侯喜禄
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