NDLI: Effects of hedgerow on soil fractal characteristics and erodibility of sloping farmland in the purple soil area of Sichuan, China

Content Provider	IEEE Xplore Digital Library
Author	Chen, Yun Ma, Yun He, Binghui
Copyright Year	2012
Description	Author affiliation: College of Resources and Environment, Southwest University, Chongqing 400715, China (Chen, Yun; Ma, Yun; He, Binghui)
Abstract	This paper studied effects of vetiver hedgerow and leucaena leucocephala hedgerow on fractal characteristics and erodibility of the purple soil. It took fractal dimension of PSD (particle-size distribution) to describe soil fractal characteristics, and EPIC (erosion-productivity impact calculator) to calculate values of soil erodibility factor K. Results showed that:(1) hedgerows affected spatial distributions of soil particles as small ones reduced in CK (check) plots, but increased in hedgerow plots.(2) Variations of PSD fractal dimension had negative linear correlation with variations of sand content with correlation coefficient of −0.828, but had positive linear correlations with variations of silt content and clay content with correlation coefficients of 0.638, 0.898.(3) Values of K decreased in 10° plots with hedgerows, especially with vetiver hedgerows.(4) Variations of K had significant positive correlations with variations of sand content and dispersion coefficient of micro-aggregate (particle size < 0.002mm), and their correlation coefficients were 0.980 and 0.836. Variations of K had negative correlation with variations of silt content, clay content, organic carbon content and aggregation rate, and their correlation coefficients were −0.925, −0.833, −0.787 and −0.716. (5) Vetiver is more suitable than Leucaena leucocephala for popularization and application on control of the purple soil erosion.
Starting Page	1
Ending Page	4
File Size	232793
Page Count	4
File Format	PDF
ISBN	9781467344975
ISSN	21544824
e-ISBN	9781889334479
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-24
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	TSI Press
Subject Keyword	Soil Fractals Correlation Carbon Helium Soil measurements soil erodibility hedgerow soil particle fractal dimension
Content Type	Text
Resource Type	Article

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