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DOI:	10.1371/journal.pone.0139979
论文题名:	Microfluidic Leaching of Soil Minerals: Release of K+ from K Feldspar
作者:	Davide Ciceri; Antoine Allanore
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-10-20
卷:	10, 期:10
语种:	英语
英文关键词:	Microfluidics ; Minerals ; Flow rate ; Agricultural soil science ; Fertilizers ; Agronomy ; Geology ; Reynolds number
英文摘要:	The rate of K+ leaching from soil minerals such as K-feldspar is believed to be too slow to provide agronomic benefit. Currently, theories and methods available to interpret kinetics of mineral processes in soil fail to consider its microfluidic nature. In this study, we measure the leaching rate of K+ ions from a K-feldspar-bearing rock (syenite) in a microfluidic environment, and demonstrate that at the spatial and temporal scales experienced by crop roots, K+ is available at a faster rate than that measured with conventional apparatuses. We present a device to investigate kinetics of mineral leaching at an unprecedented simultaneous resolution of space (~101-102 μm), time (~101-102 min) and fluid volume (~100-101 mL). Results obtained from such a device challenge the notion that silicate minerals cannot be used as alternative fertilizers for tropical soils.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0139979&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/20660
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0139979.PDF（547KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America;Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America

Recommended Citation:

Davide Ciceri,Antoine Allanore. Microfluidic Leaching of Soil Minerals: Release of K+ from K Feldspar[J]. PLOS ONE,2015-01-01,10(10)

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