Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.

<h4>Background</h4>Biological soil crusts are common components of desert ecosystem; they cover ground surface and interact with topsoil that contribute to desertification control and degraded land restoration in arid and semiarid regions.<h4>Methodology/principal findings</h4&g...

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Autores principales:	Guang-Lei Gao, Guo-Dong Ding, Bin Wu, Yu-Qing Zhang, Shu-Gao Qin, Yuan-Yuan Zhao, Yan-Feng Bao, Yun-Dong Liu, Li Wan, Ji-Feng Deng
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/60872a9ae47e46de9c2a7ecc5dbd4fe2
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spelling	oai:doaj.org-article:60872a9ae47e46de9c2a7ecc5dbd4fe22021-11-18T08:33:15ZFractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.1932-620310.1371/journal.pone.0088559https://doaj.org/article/60872a9ae47e46de9c2a7ecc5dbd4fe22014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24516668/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Biological soil crusts are common components of desert ecosystem; they cover ground surface and interact with topsoil that contribute to desertification control and degraded land restoration in arid and semiarid regions.<h4>Methodology/principal findings</h4>To distinguish the changes in topsoil affected by biological soil crusts, we compared topsoil properties across three types of successional biological soil crusts (algae, lichens, and mosses crust), as well as the referenced sandland in the Mu Us Desert, Northern China. Relationships between fractal dimensions of soil particle size distribution and selected soil properties were discussed as well. The results indicated that biological soil crusts had significant positive effects on soil physical structure (P<0.05); and soil organic carbon and nutrients showed an upward trend across the successional stages of biological soil crusts. Fractal dimensions ranged from 2.1477 to 2.3032, and significantly linear correlated with selected soil properties (R(2) = 0.494∼0.955, P<0.01).<h4>Conclusions/significance</h4>Biological soil crusts cause an important increase in soil fertility, and are beneficial to sand fixation, although the process is rather slow. Fractal dimension proves to be a sensitive and useful index for quantifying changes in soil properties that additionally implies desertification. This study will be essential to provide a firm basis for future policy-making on optimal solutions regarding desertification control and assessment, as well as degraded ecosystem restoration in arid and semiarid regions.Guang-Lei GaoGuo-Dong DingBin WuYu-Qing ZhangShu-Gao QinYuan-Yuan ZhaoYan-Feng BaoYun-Dong LiuLi WanJi-Feng DengPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 2, p e88559 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Guang-Lei Gao Guo-Dong Ding Bin Wu Yu-Qing Zhang Shu-Gao Qin Yuan-Yuan Zhao Yan-Feng Bao Yun-Dong Liu Li Wan Ji-Feng Deng Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
description	<h4>Background</h4>Biological soil crusts are common components of desert ecosystem; they cover ground surface and interact with topsoil that contribute to desertification control and degraded land restoration in arid and semiarid regions.<h4>Methodology/principal findings</h4>To distinguish the changes in topsoil affected by biological soil crusts, we compared topsoil properties across three types of successional biological soil crusts (algae, lichens, and mosses crust), as well as the referenced sandland in the Mu Us Desert, Northern China. Relationships between fractal dimensions of soil particle size distribution and selected soil properties were discussed as well. The results indicated that biological soil crusts had significant positive effects on soil physical structure (P<0.05); and soil organic carbon and nutrients showed an upward trend across the successional stages of biological soil crusts. Fractal dimensions ranged from 2.1477 to 2.3032, and significantly linear correlated with selected soil properties (R(2) = 0.494∼0.955, P<0.01).<h4>Conclusions/significance</h4>Biological soil crusts cause an important increase in soil fertility, and are beneficial to sand fixation, although the process is rather slow. Fractal dimension proves to be a sensitive and useful index for quantifying changes in soil properties that additionally implies desertification. This study will be essential to provide a firm basis for future policy-making on optimal solutions regarding desertification control and assessment, as well as degraded ecosystem restoration in arid and semiarid regions.
format	article
author	Guang-Lei Gao Guo-Dong Ding Bin Wu Yu-Qing Zhang Shu-Gao Qin Yuan-Yuan Zhao Yan-Feng Bao Yun-Dong Liu Li Wan Ji-Feng Deng
author_facet	Guang-Lei Gao Guo-Dong Ding Bin Wu Yu-Qing Zhang Shu-Gao Qin Yuan-Yuan Zhao Yan-Feng Bao Yun-Dong Liu Li Wan Ji-Feng Deng
author_sort	Guang-Lei Gao
title	Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
title_short	Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
title_full	Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
title_fullStr	Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
title_full_unstemmed	Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
title_sort	fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/60872a9ae47e46de9c2a7ecc5dbd4fe2
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Fractal scaling of particle size distribution and relationships with topsoil properties affected by biological soil crusts.

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