NDLI: Fractal features of soil profiles under different land use patterns on the Loess Plateau, China

Content Provider	Springer Nature Link
Author	Liu, GuoBin Xue, Sha Zhang, Chao Xiao, Lie
Copyright Year	2014
Abstract	Fractal theory is becoming an increasingly useful tool to describe soil structure dynamics for a better understanding of the performance of soil systems. Changes in land use patterns significantly affect soil physical, chemical and biological properties. However, limited information is available on the fractal characteristics of deep soil layers under different land use patterns. In this study, the fractal dimensions of particle size distribution (PSD) and micro-aggregates in the 0–500 cm soil profile and soil anti-erodibility in the 0–10 cm soil profile for 10 typical land use patterns were investigated in the Zhifanggou Watershed on the Loess Plateau, China. The 10 typical land use patterns were: slope cropland, two terraced croplands, check-dam cropland, woodland, two shrublands, orchard, artificial and natural grasslands. The results showed that the fractal dimensions of PSD and micro-aggregates were all significantly influenced by soil depths, land use patterns and their interaction. The plantations of shrubland, woodland and natural grassland increased the amount of larger micro-aggregates, and decreased the fractal dimensions of micro-aggregates in the 0–40 cm soil profile. And they also improved the aggregate state and aggregate degree and decreased dispersion rate in the 0–10 cm soil profile. The results indicated that fractal theory can be used to characterize soil structure under different land use patterns and fractal dimensions of micro-aggregates were more effective in this regard. The natural grassland may be the best choice for improving soil structure in the study area.
Starting Page	550
Ending Page	560
Page Count	11
File Format	PDF
ISSN	16746767
Journal	Journal of Arid Land
Volume Number	6
Issue Number	5
e-ISSN	21947783
Language	English
Publisher	Science Press
Publisher Date	2014-01-22
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	soil profile anti-erodibility Sustainable Development Physical Geography fractal dimension land use pattern Loess Plateau Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Water Science and Technology Management, Monitoring, Policy and Law

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