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| 1 | 强度耕作对^(137)Cs、^(210)Pb_(ex)和有机质剖面分布的影响显示文摘很少有关于直接测定强度耕作侵蚀引起土壤退化过程的报道。我们的目的是确定应用137Cs和210Pbex直接定量评价耕作侵蚀对土壤有机质(SOM)坡面运移影响的可能性。我们在黄土高原陡坡耕地上进行了50次犁耕活动,并将与其相临的另一块陡坡耕地作为对照。在对照坡地不同坡位,137Cs浓度均匀分布于上部0~30cm土层,而210Pbex浓度在坡上部和坡中部随土层深度增加呈现线性递减,在坡下部呈指数函数递减。0~30cm土层中土壤有机质含量显著大于30cm深度以下土层,并在坡中部和坡下部呈现与210Pbex类似的土壤剖面分布特征。与对照坡地比较,50次犁耕活动导致坡上部、坡中部0~45cm土层的SOM含量分别降低了38%和47%,坡下部0~100cm土层中的SOM含量却提高了18%。坡上部土壤剖面中137Cs浓度的加权平均值从1.48Bq/kg降低到0.29Bq/kg,坡中部从2.53Bq/kg减少到0.33Bq/kg,坡下部从1.48Bq/kg提高到2.81Bq/kg。210Pbex浓度的剖面加权平均值在坡上部从27.71Bq/kg下降到6.15Bq/kg,在坡中部和坡下部分别从35.46Bq/kg和25.53Bq/kg降低到1.57Bq/kg和19.40Bq/kg。137Cs和210Pbex的剖面分布与SOM在p<0.001水平呈显著相关,相关系数R2值在对照坡地为0.81~0.86,在犁耕实验坡地为0.86~0.91。实验结果表明。 | 李勇 白玲玉 张兴昌 Lindstrom M L Bork H R | 2003 | 水土保持学报2003，17，3： | 3 |
| 2 | Variations in the ghrelin receptor gene associate with obesity and glucose metabolism in individuals with impaired ulucose tolerance显示文摘 | Mager U Degenbardt T Pulkkinen L Kolehmainen M Tolppanen A M Lindstrom J | 2008 | PLoS ONE2008，3，： | 1 |
| 3 | Potential role of Thiobacillus caldus in arsenopyrite bioleaching显示文摘 | DOPSON M LINDSTROM E B | 1999 | Applied and Environme- ntal Microbiology1999，65，1： | 1 |
| 4 | Reduced sulfur compound oxidation by Thiobacillus caldus显示文摘 | HALLBERG K B DOPSON M LINDSTROM E B | 1996 | J Bacteriol1996，178，： | 1 |
| 5 | Antarctic meteorite ALHA81005-Not just another lunar anorthositic norite显示文摘 | Korotev R L Lindstrom M M Lindstrom D J | | 0，，9： | 1 |
| 6 | Analysis of community composition during moderately thermophilic bioleaching of pyrite, arsenical pyrite, and chaicopyrite 显示文摘 | DOPSON M LINDSTROM E B | 2004 | Microbial Ecology2004，48，1： | 1 |
| 7 | Structure and organization of the immunoglobulin M heavy chain genes in Atlantic salmon,Salmo salar显示文摘 | Lindstrom C D V Voie A M | 1997 | Mol Immunol1997，34，： | 1 |
| 8 | Loss of local control with prolongation in radiotherapy 显示文摘 | Fowler JF Lindstrom M | 1992 | Radiother Oncol1992，23，： | 1 |
| 9 | Polyfluorinat-ed compounds:Past,present,and future显示文摘 | Lindstrom A B Strynar M J Libelo E L | 2011 | Environ-mental Science&Technology2011，45，19： | 1 |
| 10 | Polyfluorinat-ed compounds:Past,present,and future显示文摘 | Lindstrom A B Strynar M J Libelo E L | 2011 | Environ-mental Science&Technology2011，45，19： | 1 |
| 11 | Clinically used breast cancer markers such as estrogen receptor,progesterone receptor,and human epidermal growth factor receptor 2 are unstable throughout tu- mor progression显示文摘 | Lindstrom L S Karlsson E Wiking U M | 2012 | J Clin Oncol2012，30，21： | 1 |
| 12 | Runoff and soil erosion during spring thaw in the northern US Corn Belt显示文摘 | Sharratt B S Lindstrom M J Benoit G R | 2000 | Journal of Soil and Water Conservation2000，55，4： | 1 |
| 13 | Oxygen and oil barrier properties of microfibrillated cellulose films and coatings显示文摘 | Aulin C Gallstedt M Lindstrom T | | Cellulose0，17，5： | 1 |
| 14 | Multiplex PCR assay for detection and identification of Clostridium botulinum types A, B, E, and F in food and fecal material 显示文摘 | Lindstrom M Keto R Markkula A | 2001 | Appl Environ Microbiol2001，67，12： | 1 |
| 15 | Alpha and beta nicotinic acetylcholine receptors subunits and synaptophysin in putamen from Parkinson′s disease显示文摘 | Martin-Ruiz CM Piggott M Gotti C Lindstrom J Mendelow AD Siddique MS | 2000 | Neuropharmacology2000，39，13： | 1 |
| 16 | Sustained reduction in the incidence of type 2 diabetes by lif- estyle intervention:follow-up of the Finnish Diabetes Preven- tion Study 显示文摘 | LINDSTROM J ILANNE-PARIKKA P PELTONEN M | 2006 | Lancet2006，368，9548： | 1 |
| 17 | Antenna coupled planar arrays of Josephson junctions显示文摘 | Tarasov M Stepantsov E Lindstrom T | 2002 | Physica C2002，，： | 1 |
| 18 | Antonovskyrs sense of cohe- rence scale an its relation with quality of life: a systemat- ic review 显示文摘 | Erriksson M Lindstrom B | 2007 | J Epidemiol Community Health2007，61，11： | 1 |
| 19 | Regions of H- and K-Ras that provide organ specificity/potency in mammary cancer Induction 显示文摘 | Kim K Lindstrom M J Gould MN | 2002 | Cancer Res2002，62，： | 1 |
| 20 | PaRerna of water and tillage erosion on topographically complex landscapes in the North American Great plains显示文摘 | 1obb D A Lindstrom M J | 2008 | Journal of Soil and Water Conservation2008，63，1： | 1 |
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