Ren-kou Xu
Chinese Academy of Sciences
Environmental chemistryNuclear chemistryAdsorptionUltisolSoil waterDesorptionInorganic chemistryOxisolSoil acidificationChemistryIonic strengthCation-exchange capacitySoil pHStrawKaoliniteSurface chargeBiocharSorptionAgronomyZeta potential
155Publications
33H-index
5,049Citations
Publications 158
Newest
#1Zhineng Hong (CAS: Chinese Academy of Sciences)H-Index: 12
#2Jing Yan (CAS: Chinese Academy of Sciences)H-Index: 3
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
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Abstract null null Ion sorption on soil and sediment has been reported to be potentially affected by bacteria which may interact both physically and chemically with solid surfaces. However, whether and how bacteria affect the sorption of inorganic phosphate (P) on soil colloids remains poorly known. Here, we comparably investigated the P sorption on four soil colloids (three highly weathered soils including two Oxisols and one Ultisol and one weakly weathered soil Alfisol) and their complexes wi...
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#5Peng Guan (CAS: Chinese Academy of Sciences)H-Index: 1
Abstract The increasing use of nanoparticles (NPs) has raised concerns about their potential environmental risks. Many researches on NPs focused on the toxicity mechanism to microorganisms, but neglect the toxicity effects in relation to nutritional conditions. Here, we evaluated the interactive effects of zinc oxide (ZnO) NPs and phosphorus (P) levels on the bacterial community and functioning of periphytic biofilms. Results showed that long-term exposure to ZnO NPs significantly reduced alkali...
1 CitationsSource
#1Jackson Nkoh Nkoh (CAS: Chinese Academy of Sciences)H-Index: 6
#2Zhineng Hong (CAS: Chinese Academy of Sciences)H-Index: 12
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
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#1Romel Biswash (CAS: Chinese Academy of Sciences)
#2Hai-long Lu (CAS: Chinese Academy of Sciences)H-Index: 3
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
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Abstract null null Excessive amounts of copper (Cu) in soils causes toxic effects on plants. In this study, 58 rice cultivars were classified into tolerant, moderately tolerant, and susceptible types for Cu(II) toxicity based on 50% germination (LC50). Nine japonica rice varieties (three each from the tolerant, moderately tolerant, and susceptible groups) and six indica rice varieties (three from the moderately tolerant and susceptible groups) were selected for the hydroponics experiments. In th...
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Abstract null null Forest soil acidification caused by acid deposition is a serious threat to the forest ecosystem. To investigate the liming effects of biomass ash (BA) and alkaline slag (AS) on the acidic topsoil and subsoil, a three-year field experiment under artificial Masson pine was conducted at Langxi, Anhui province in Southern China. The surface application of BA and AS significantly increased the soil pH, and thus decreased exchangeable acidity and active Al in the topsoil. Soil excha...
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#1Zhineng Hong (CAS: Chinese Academy of Sciences)H-Index: 12
#2David L. Bish (IU: Indiana University)H-Index: 63
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
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#5Hui Liu (CAS: Chinese Academy of Sciences)H-Index: 8
To develop high-efficient biochar adsorbents, the effects and mechanisms of oxidant modification and acid modification on Cd(II) adsorption by rice straw biochar were investigated. Three rice straws from Langxi in Anhui Province, Yingtan in Jiangxi Province, and Lianyungang in Jiangsu Province were collected to prepare biochars by anaerobic pyrolysis in a muffle furnace. Rice straw biochars were modified by 15% H2O2 and 1:1 HNO3/H2SO4 mixed acid, respectively, to obtain modified biochars. The un...
1 CitationsSource
#1Ge Dong (CAS: Chinese Academy of Sciences)H-Index: 3
#2Hai-long Lu (CAS: Chinese Academy of Sciences)H-Index: 3
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
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Abstract To explore the relationship between Al phytotoxicity and the electrochemical characteristics of wheat root surfaces, a new chemical mechanism for tolerance of wheat to Al toxicity was initially proposed by conducting acute root elongation experiment, adsorption/desorption experiment, streaming potential determination, and infrared spectroscopy (ATR-FTIR) analysis respectively to classify the grade of Al tolerance of 92 wheat cultivars and quantitatively characterize the electrochemical ...
1 CitationsSource
#1Xiao-ying Pan (CAS: Chinese Academy of Sciences)H-Index: 5
#2Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
Last. Peng Guan (CAS: Chinese Academy of Sciences)H-Index: 1
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Variable charge soils have low agricultural productivity associated with low pH, low cation exchange capacity (CEC), and low pH buffering capacity (pHBC). As a result of rapid acidification rates, these soils are prone to infertility resulting from Al phytotoxicity and deficiency of P, Ca, Mg, and K, and thus require amendments that can ameliorate soil acidity and enhance soil CEC and pHBC. A 30-day pot experiment was carried out using a clay Ultisol and a sandy Ultisol amended with straw decaye...
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#1Zhineng Hong (CAS: Chinese Academy of Sciences)H-Index: 12
#2Jing Yan (CAS: Chinese Academy of Sciences)H-Index: 3
Last. Ren-kou Xu (CAS: Chinese Academy of Sciences)H-Index: 33
view all 5 authors...
Sorption thermodynamics of phosphate (P) on the soil colloid remains poorly known, although many previous studies have been done by macroscopic, microscopic, and spectroscopic methods. Here, we dir...
1 CitationsSource