黄土地貌传承:建模与发现

图书信息

作者：Li-YangXiong,Guo-AnTang著

出版社：科学出版社

定价：199.00

ISBN：9787030615671

出版时间：2019-08-01

分类：图书,行业职业,工业技术,冶金、地质

商品介绍

目录

Foreword

Acknowledgements

Chapter 1 Significance of loess landform inheritance

1.1 Introduction of the scientific problem

1.2 Research significance

1.3 Literature review

1.4 Research contents and objectives

1.5 Overall research methods and technical routes

1.6 Monograph structure

Chapter 2 General background of the study area and materials

2.1 Study area

2.2 Research materials

2.3 Summary of this chapter

Chapter 3 Conceptual model of loess landform inheritance

3.1 Basic concepts

3.2 Existing conditions and influencing factors

3.3 Basic characteristics

3.4 Expressing methods

3.5 Type classification

3.6 Geo-meanings

3.7 Summary of this chapter

Chapter 4 Reconstruction of the loess underlying paleotopography for loess landform inheritance

4.1 Overall design of the reconstruction method

4.2 Reconstruction of the loess underlying paleotopography in the macroscale

4.3 Reconstruction of the loess underlying paleotopography in the mesoscale and microscale

4.4 Uncertainty of loess underlying paleotopography reconstruction

4.5 Basic features of the loess underlying paleotopography

4.6 Summary of this chapter

Chapter 5 Investigation of loess landform inheritance by using quantitative terrain indexes

5.1 Quantitative indexes for expressing loess landform inheritance

5.2 Loess landform inheritance analysis by using the characteristic of elevation statistical distribution

5.3 Loess landform inheritance analysis by using the characteristics of the terrain profile

5.4 Loess landform inheritance analysis by using the characteristics of terrain factors

5.5 Summary of this chapter

Chapter 6 Spatial variations in loess landform inheritance

6.1 Spatial variation and scale effect of loess deposition in relation to paleotopography in the Loess Plateau

6.2 Spatial differences in the evolution of modern gullies in the Loess Plateau in relation to paleotopography

6.3 Summary of this chapter

Chapter 7 Conclusions and perspectives

7.1 Conclusions of this research

7.2 Innovations of this research

7.3 Limitations and perspectives

References

Appendix

内容简介

黄土地貌继承性研究是揭示黄土地貌二百余万年来发育、演化机理的关键环节，也是黄土地貌研究的重要关注点。前人对黄土地貌继承性及相关问题进行了较多的研究，初步探讨了第三纪古地形对当今黄土地貌形成的控制作用。但是，目前对黄土地貌继承性的成因机理、影响程度及区域差异性等问题尚未形成共识。数字高程模拟（DEM）及基于DEM的数字地形分析，为在GIS平台下实现地表形态的定量描述与分析提供了新的思想和方法。如果能够建立第三纪黄土下伏古地形的数字高程模型，从而构建地表-地下一体化的双层的数字高程模拟，就可望通过运用GIS复合分析等多种空间分析方法，有效揭示黄土地貌继承性研究中的科学问题，实现黄土地貌研究的理论突破与方法创新。研究首先分析了黄土地貌继承性的概念模型。其地形面的DEM、地质图以及钻孔物探资料为依据，重建了三种空间尺度的黄土堆积前原始地形面的DEM，进而构建了地表-地下一体化的“双层地形模型”。并据此模型，通过面积高程积分、坡向变异特征、地形剖面比降及地形剖面凸凹度等方法与指标，分析现今地形与古地形的空间关系，获得在下伏古地形控制作用下，黄土堆积对地表起伏变化、地貌发育变化及黄土地貌空间分异格局的新认识。