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2019 2

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electric fields 1

electromigration 1

fixation 1

mobilization 1

phosphorus fertilizer 1

rhizosphere 1

saline soil 1

soil-remediation 1

transformations 1

utilization 1

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Analysis of mobilization of inorganic ions in soil by electrokinetic remediation

Xiaojing LI, Lige WANG, Xueming SUN, Yuansheng CONG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1463-1473 doi: 10.1007/s11709-019-0569-8

Abstract: Saline soil has imposed a serious threat on many expressway engineering and agricultural areas. This paper describes the performance of saline soil treatment using electrokinetic remediation technology. Comparison study involving sample soil and soil is carried out. Two different electric fields, i.e., uniform and non-uniform are utilized to promote the migration of inorganic ions contained in the soil toward the electrode area. The effects of different electric field types and potential gradient ion migration rate in soil are investigated. The test result reveals that a uniform electric field of a constant potential gradient of 1 V/cm drives the Cl through the sample soil at a rate of 1.36 cm/h. Moreover, larger potential gradients could make ions migrate faster, but more electrical energy is consumed in such a way. Compared with uniform electric field, the non-uniform process maintains the soil pH values more effectively and consumes less electrical energy. A desirable result of removing Na in soil is expected using electrokinetic remediation technology under four-times scaling up of soil volume.

Keywords： electromigration     electric fields     saline soil     soil-remediation    

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Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 341-347 doi: 10.15302/J-FASE-2019280

Abstract: First, we asked what are the dynamics of transformation, fixation and mobilization of P fertilizers in

Keywords： fixation     mobilization     phosphorus fertilizer     rhizosphere     transformations     utilization    

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Title Author Date Type Operation

Analysis of mobilization of inorganic ions in soil by electrokinetic remediation

Xiaojing LI, Lige WANG, Xueming SUN, Yuansheng CONG

Journal Article

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

Journal Article