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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 | Single-Element Solution Comparisons with a High-performance Inductively Coupled Plasma Optical Emission Spectrometry Method显示文摘 | Marc L Salit Gregory C Yurk Abigail P Lindstrom | 2001 | Anal Chem2001，73，： | 2 |
| 3 | 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 |
| 4 | Muscular fatigue and action potiential conduction velocity changes studied with frequency analysis of EMG signals 显示文摘 | Lindstrom L Magnusson S Peterson I | 1970 | Electromyography1970，10，7： | 1 |
| 5 | In utero exposure to persistent organic pollutants in relation to testicular cancer risk显示文摘 | Hardell L Bavel B Lindstrom G | 2006 | Int J Androl2006，29，1： | 1 |
| 6 | 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 |
| 7 | Serum uric acid as a harbinger of metabolic outcome in subjects with impaired glu- cose tolerance: the Finnish Diabetes Prevention Study 显示文摘 | Niskanen L Laaksonen DE Lindstrom J | 2006 | Diabe- tes Care2006，29，3： | 1 |
| 8 | Muscular fatigue and action potential conduction velocity changes studied with frequency analysis of EMG signals 显示文摘 | Lindstrom L Magnusson S Peterson I | 1970 | Electromyography1970，10，4： | 1 |
| 9 | Effects of lung volume on diaphragm EMG signal strength during voluntary contractions显示文摘 | Beck J Sinderby C Lindstrom L | 1998 | J Appl Physiol1998，85，3： | 1 |
| 10 | Development of a new inventory for Assessing memories of parental rearing behavior显示文摘 | Perils C Jacobsson L Lindstrom H | 1980 | Actapsychiat Scand1980，61，： | 1 |
| 11 | 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 |
| 12 | 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 |
| 13 | 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 |
| 14 | Crural diaphragm activation during dynamic contractions at various inspiratory flow rates显示文摘 | Beck J Sinderby C Lindstrom L | 1998 | J Appl Physiol1998，85，2： | 1 |
| 15 | Muscular Fatigue and Action Potential Conduction Velocity Changes Studied With Frequency Analysis of EMG signals 显示文摘 | LINDSTROM L R MAGNUSSON I PETERSEN | 1970 | Electromyography1970，4，： | 1 |
| 16 | The VO2 defect in silicon 显示文摘 | LINDSTROM J L MURIN L I SVENSSON B G | 2003 | Physica B2003，，50： | 1 |
| 17 | Serum uric acid as a harbinger of metabolic outcome in subjects with impaired glucose tolerance: the Finnish diabetes prevention study显示文摘 | Niskanen L Laaksonen DE Lindstrom J | 2006 | Diabetes Care2006，29，： | 1 |
| 18 | A new method to make dye-sensitized nanocrystalline solar cells at room temperature显示文摘 | Lindstrom H Holmberg A Magnusson E Malmqvist L Hagfeldt A | | 0，，： | 1 |
| 19 | Not 15 but 50%of smokers develop COPD?-Report from the Obstructive LungDisease in Northern Sweden Studies显示文摘 | Limdback B L Lindbeig A Lindstrom | 2003 | Respir Med2003，97，2： | 1 |
| 20 | Serum uric acid asa harbinger of metabolic outcome in subjects with impaired glucosetolerance : the Finnish Diabetes Prevention Study 显示文摘 | Niskanen L Laaksonen DE Lindstrom J | 2006 | DiabetesCare2006，29，3： | 1 |
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