|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Migration and speciation transformation mechanisms of mercury in undercurrent zones of the Tongguan gold mining area, Shaanxi Loess Plateau and impact on the environment显示文摘In order to study the migration and transformation mechanism of Hg content and occurrence form in subsurface flow zone of gold mining area in Loess Plateau and its influence on water environment,the field in-situ infiltration test and laboratory test were carried out in three typical sections of river-side loess,alluvial and proluvial strata in Tongguan gold mining area of Shaanxi Province,and the following results were obtained:(1)The source of Hg in subsurface flow zone is mainly caused by mineral processing activities;(2)the subsurface flow zone in the study area is in alkaline environment,and the residual state,iron and manganese oxidation state,strong organic state and humic acid state of mercury in loess are equally divided in dry and oxidizing environment;mercury in river alluvial or diluvial strata is mainly concentrated in silt,tailings and clayey silt soil layer,and mercury has certain stability,and the form of mercury in loess is easier to transform than the other two media;(3)under the flooding condition,most of mercury is trapped in the silt layer in the undercurrent zone where the sand and silt layers alternate with each other and the river water and groundwater are disjointed,and the migration capacity of mercury is far less than that of loess layer and alluvial layer with close hydraulic connection;(4)infiltration at the flood level accelerates the migration of pollutants to the ground;(5)the soil in the undercurrent zone is overloaded and has seriously exceeded the standard.Although the groundwater monitoring results are safe this time,relevant enterprises or departments should continue to pay attention to improving the gold extraction process,especially vigorously rectify the small workshops for illegal gold extraction and the substandard discharge of the three wastes,and intensify efforts to solve the geological environmental problems of mines left over from history.At present,the occurrence form of mercury in the undercurrent zone is relatively stable,but the water and soil layers have been polluted.The risk of disjointed groundwater pollution can not be ignored while giving priority to the treatment of loess and river alluvial landform areas with close hydraulic links.The research results will provide a scientific basis for water conservancy departments to groundwater prevention and control in water-deficient areas of the Loess Plateau. | Rui-ping Liu You-ning Xu Hui-chao Rui El-Wardany RM Ying Dong | 2021 | China Geology2021，4，2： | 3 |
| 2 | A chemical extraction method for mimicking bioavailability of polycyelic aromatic hydrocarbons to wheat grown in soils containing various amounts of organic matter 显示文摘 | Tao S Xu F Liu W Cui Y Coveney RM | 2006 | Environ Sci Technol2006，40，7： | 1 |
| 3 | Effects of treatment with small interfering RNA on joint inflammation in mice with collagen-induced arthritis 显示文摘 | Schiffelers RM Xu J Storm G | 2005 | Arthritis Rheum2005，52，4： | 1 |
| 4 | Microglial expression of chemokine receptor CCR5 during rat forebrain development and after perinatal hypoxia-ischemia 显示文摘 | Cowell RM Xu H Parent JM | 2006 | J Neuroimmunol2006，173，12： | 1 |
| 5 | Morphometric Evaluation of lower cervical pedicle and its pmjection显示文摘 | Ebrabeim NA Xu RM Knight TB | 1997 | Spine1997，22，1： | 1 |
| 6 | Photoexcited broadband blueshift tunable perfect terahertzmeta- material absorber 显示文摘 | ZC Xu RM Gao CF Ding L Wu YT Zhang JQ Yao | 2015 | Optical Mateials2015，42，： | 1 |
| 7 | A study on the immune receptors for polysaccharides from the roots of Astragalusm embranaceus a Chinese medicinal herb显示文摘 | Shao RM Xu W DaiH | 2004 | Biochem Boiphys Res Commun2004，20，4： | 1 |
| 8 | High prevalence of BRAF gene mutation in papillary thyroid carcinomas and thyroid tumor cell lines 显示文摘 | Xu XL Quiros RM Gattuso P | 2003 | Cancer Res2003，63，15： | 1 |
| 9 | Anatomic considerations of costotransversc screw placement in the thoracic spine显示文摘 | Xu RM Ebraheim NA Ou Y | 2000 | Surg Neurol2000，53，4： | 1 |
| 10 | The genus Dermacentor and the subgenus Indocentor (Acari : Ixodidae ) from China 显示文摘 | Sun Y Xu RM | 2013 | Oriental Insects2013，47，： | 1 |
| 11 | Antitussive effects of Stemona tuberosa with different chemical profiles显示文摘 | Xu YT Honc PM Jiang RM | 2006 | JEthnopharma2006，108，1： | 1 |
| 12 | Differential sensitivity of murineastrocytes and neurons from different brain regions to injury 显示文摘 | Xu L Sapolsky RM Giffard RG | 2001 | Exp Neurol2001，169，2： | 1 |
| 13 | The location of thein- tervertebral lumbar disc on the posterior aspect of the spine显示文摘 | Ebraheim NA Miller RM Xu R | 1997 | Surg Neurol1997，48，3： | 1 |
| 14 | Reactive oxygen species and vascular remodelling in hypertension : still alive显示文摘 | Xu S Touyz RM | 2006 | Can J Cardiol2006，22，11： | 1 |
| 15 | High prevalence of BRAF gene mutation in papillary thyroid carcinoma and thyroid tumor cell lines 显示文摘 | Xu X Qurios RM Gattuso P | 2003 | Cancer Res2003，61，15： | 1 |
| 16 | Efficient differentiation of human iPSC derived mesenchymal stem cells to chondroprogenitor cells 显示文摘 | Guzzo RM Gibson J Xu RH | 2013 | Journal of Cellular Biochemistry2013，114，2： | 1 |
| 17 | The location of the intervertebral lumbar disc on the posterior aspect of the spine显示文摘 | Ebraheim NA Miller RM Xu R | 1997 | Surg Neurol1997，48，3： | 1 |
| 18 | Cancer siRNA therapy by tumor selective delivery with hgand-targeted sterically stabilized nanoparticle显示文摘 | Schiffelers RM Ansari A Xu J | 2004 | Nucleic Acids Res2004，32，19： | 1 |
| 19 | Structure of the Mycobacterium tuberculosis proteasome and mechanism of inhibition by a peptidyl boronate显示文摘 | Hu G Lin G Wang M Dick L Xu RM Nathan C Li H | 2006 | Mol Mierobiol2006，59，5： | 1 |
| 20 | Anatomic basis of lag screw placement in the anterior colum of the acetabulum显示文摘 | Ebraheim NA Xu RM Bivani AQ | 1997 | Clin Orthop1997，339，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员