摘要 | 第1-7页 |
Abstract | 第7-13页 |
LIST OF FIGURES | 第13-15页 |
LIST OF TABLES | 第15-17页 |
CHAPTER Ⅰ INDRODUCTION | 第17-25页 |
CHAPTER Ⅱ DESCRIPTION OF THE STUDY SITE | 第25-29页 |
CHAPTER Ⅲ SPATIAL DISTRIBUTION SOC AND SOILREDISTRIBUTION FROM 1954-2011 AND 1911-2011 PERIODS | 第29-52页 |
Summary | 第29-30页 |
·INTRODUCTION | 第30-32页 |
·MATERIALS AND METHODS | 第32-37页 |
·Soil sampling | 第32页 |
·Soil analysis | 第32-33页 |
·Soil redistribution analysis | 第33-34页 |
·Terrain analysis | 第34-35页 |
·Statistical and Geostatistical analysis | 第35-37页 |
·Statistical analysis | 第35页 |
·Geostatistical analysis | 第35-36页 |
·Validation of spatial prediction | 第36-37页 |
·RESULTS AND DISCUSSION | 第37-51页 |
·Measured the depth distribution of ~(137)Cs and ~(210)Pb_(ex) activity | 第37-39页 |
·Measured horizontal distribution of ~(137)Cs and ~(210)Pb_(ex) inventories and SOC content | 第39-41页 |
·Total soil redistribution from measurement | 第41-42页 |
·Terrain parameters within study site | 第42-43页 |
·Relations between soil properties, soil redistribution and terrain attributes | 第43-46页 |
·Spatial prediction of SOC and Total soil redistributions | 第46-51页 |
·CONCLUSION | 第51-52页 |
CHAPTER Ⅳ DYNAMIC OF SOC INDUCED BY TILLAGE ANDWATER EROSION FROM 1911-1954 AND 1954-2011 PERIODS | 第52-67页 |
Summary | 第52-53页 |
·INTRODUCTION | 第53-54页 |
·MATERIALS AND METHODS | 第54-57页 |
·The estimation of water and tillage-induced soil redistribution | 第54-56页 |
·Computing SOC redistribution induced by water and tillage erosion within study site | 第56页 |
·The landform classification based on terrain attributes | 第56-57页 |
·Data Analysis | 第57页 |
·RESULTS AND DISCUSSION | 第57-66页 |
·Soil redistribution induced by water and tillage erosion | 第57-58页 |
·SOC dynamics by erosion and deposition within study site | 第58-63页 |
·SOC displaced by water and tillage erosion on the different slope positions | 第63-65页 |
·Implication of ~(137)Cs and ~(210)Pb_(ex) for assessing the fate of eroded SOC | 第65-66页 |
·CONCLUSION | 第66-67页 |
CHAPTER Ⅴ SPATIAL VARIABILTY OF SOIL RESPIRATIONEFFECT OF TILLAGE AND WATER EROSION ON THE SLOPINGLAND | 第67-77页 |
Summary | 第67-68页 |
·INTRODUCTION | 第68-69页 |
·MATERIALS AND METHODS | 第69-70页 |
·Soil respiration,soil temperature and soil moisture | 第69页 |
·Soil sampling and analysis | 第69页 |
·Data analysis | 第69-70页 |
·RESULTS AND DISCUSSION | 第70-75页 |
·Variation on soil respiration,temperature,and moisture | 第70-72页 |
·Resationship between soil respiration and soil redistribution | 第72-73页 |
·Soil respiration vs.soil properties,terrain attributes and soil redistribution | 第73-75页 |
·CONCLUSION | 第75-77页 |
GENERAL CONCLUSIONS | 第77-78页 |
REFERENCE | 第78-93页 |
ACKNOWLEDGEMENT | 第93-94页 |
RESUME | 第94页 |