.png){kind=icon}
返回
Loess structure: Evolution and a scale-based classification
.png){kind=icon}
OA
AI
DOI：10.1016/j.earscirev.2023.104665.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Loess structure plays a vital role in the evolution of loess landforms, which mainly involves water erosion and slope collapse processes. The existing literature on loess structure lacks a comprehensive and systematic overview covering structural characteristics and features at all relevant spatial scales and explaining how they underlie these processes. This paper presents a detailed discussion of loess structure from this perspective and proposes a structural classification over three contiguous ranges of spatial scales (micro-, meso- and macro-) in terms of nature of particles and pore patterns. Then it details how the initial loess structure is modified by various environmental processes, and outlines cross-scale relations of inheritance among the solid structural elements (microscopic particle assemblies, mesoscopic fragments and macroscopic blocks) and weak segments (pores, channels, pipes, biological pores, abiogenic joints and cracks) making up the present-day loess structure. The ascending impact of ubiquitous micro-scale structure is evidenced by similarity in shapes and spatial arrangement patterns of all features across the scale ranges. Vertically aligned strong units (particle assemblies) coupled with vertically aligned weak segments (pores) defining micro-scale loess structure set the stage for the formation of the structural elements at larger scales. This structure, named as vertiloess, extends to field-scale landforms (>10 m) bounded and shaped with vertical features throughout the loess plateau.
Keyword:
Loessification
Structure classification
Structure inheritance
Vertiloess
期刊
E
IF:
10
论文数:
3.8K
被引数:
4.2W
机构
引用论文
分享收藏Assessing and analyzing 3D architecture of woody root systems, a review of methods and applications in tree and soil stability, resource acquisition and allocation评估和分析木本根系的3D结构，回顾树木和土壤稳定性，资源获取和分配的方法和应用.png)
PLANT AND SOIL
PLANT AND SOILIF4.1
PREAI
分享收藏
The influence of loess cave development upon landslides and geomorphologic evolution: A case study from the northwest Loess Plateau, China黄土洞穴发育对滑坡和地貌演化的影响: 以西北黄土高原为例GEOMORPHOLOGY
GEOMORPHOLOGYIF3.3
PREAI
分享收藏Grain size of fine-grained windblown sediment: A powerful proxy for process identification细粒风吹沉积物的粒度: 过程识别的有力代理
PREAI
分享收藏分享收藏
查看更多内容