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	Spatial association between dissection density and environmental factors over the entire conterminous United States
	Luo W.; Jasiewicz, J.; Stepinski, T.; Wang, J. F.; Xu, C. D.; Cang, X. Z.
	2016
关键词	drainage density climate-change channel initiation risk-assessment morphology evolution erosion systems china model
英文摘要	Previous studies of land dissection density (D) often find contradictory results regarding factors controlling its spatial variation. We hypothesize that the dominant controlling factors (and the interactions between them) vary from region to region due to differences in each region's local characteristics and geologic history. We test this hypothesis by applying a geographical detector method to eight physiographic divisions of the conterminous United States and identify the dominant factor(s) in each. The geographical detector method computes the power of determinant (q) that quantitatively measures the affinity between the factor considered and D. Results show that the factor (or factor combination) with the largest q value is different for physiographic regions with different characteristics and geologic histories. For example, lithology dominates in mountainous regions, curvature dominates in plains, and glaciation dominates in previously glaciated areas. The geographical detector method offers an objective framework for revealing factors controlling Earth surface processes.
出处	Geophysical Research Letters
卷	43
期	2
页	692-700
语种	英语
ISSN号	0094-8276
DOI标识	10.1002/2015gl066941
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43127]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Luo W.,Jasiewicz, J.,Stepinski, T.,et al. Spatial association between dissection density and environmental factors over the entire conterminous United States. 2016.

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