LEADER 04697nam 2200625 450 001 9910137487603321 005 20170919012126.0 010 $a1-119-10603-6 010 $a1-119-10602-8 035 $a(CKB)3710000000576657 035 $a(EBL)4353624 035 $a(SSID)ssj0001604414 035 $a(PQKBManifestationID)16309800 035 $a(PQKBTitleCode)TC0001604414 035 $a(PQKBWorkID)14800983 035 $a(PQKB)10733976 035 $a(PQKBManifestationID)16148107 035 $a(PQKBWorkID)14800927 035 $a(PQKB)21022531 035 $a(MiAaPQ)EBC4353624 035 $a(DLC) 2015038616 035 $a(PPN)259477273 035 $a(EXLCZ)993710000000576657 100 $a20160212h20162016 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aSoil water measurement $ea practical handbook /$fJ. David Cooper ; with contribution from Richard H. Cuenca 210 1$aChichester, England :$cWiley-Blackwell,$d2016. 210 4$dİ2016 215 $a1 online resource (803 p.) 300 $aDescription based upon print version of record. 311 $a1-119-10604-4 311 $a1-4051-7676-8 320 $aIncludes bibliographical references and index. 327 $aTitle Page; Table of Contents; Preface; Part I: Introduction; 1 Soil Water in Context; 1.1 What Is Soil Water?; 2 How Does Water in Soil Interact with the Soil Matrix, Air, Roots, Gravity and Other Substances Present?; 2.1 Static Properties of Soil Water; 2.2 Dynamic Properties of Soil Water; 2.3 Preferential Flow; 3 What Do We Need to Measure?; 3.1 Diffusivity; 3.2 Matric Flux Potential; 3.3 Sorptivity; 4 Spatial Variability; 4.1 Representative Elementary Volume; 4.2 Deterministic versus Random Variation; 4.3 Geostatistics; Part II: Water Content; 5 Definitions 327 $a5.1 Basis for Expressing Water Content5.2 Standard Definition of Soil Water; 5.3 Measurement of Water Content; 6 Gravimetric Method; 6.1 Equipment Required; 6.2 Procedures; 6.3 Likely Problems with Gravimetric Sampling; 6.4 Direct Measurement of Bulk Density; 6.5 Indirect Measurement of Bulk Density: Gamma Ray Probes; 6.6 Conclusion; Appendix 6.A Scintillation Detectors; 7 Neutron Scattering; 7.1 Principles of the Method; 7.2 Types of Neutron Probe; 7.3 Access Tube Installation; 7.4 Accommodating Farming Operations; 7.5 Accuracy and Precision of Measurement; 7.6 Measurements in Access Tubes 327 $a7.7 Calibration7.8 Measurements near the Surface; 7.9 Processing and Use of Data; 7.10 Cosmic-Ray Soil Moisture Observing System; 7.11 Radiological Safety; 8 Dielectric Methods; 8.1 Dielectrics - Basic Principles; 8.2 Factors Affecting Permittivity of Water; 8.3 Fundamentals of Electrical Circuits; 8.4 The Relationship between Soil Water Content and Permittivity; 8.5 Transmission Lines; 8.6 Practical Realisation of a Transmission Line System - Time Domain Reflectometry; 8.7 Capacitance Methods; 8.8 Theta and Profile Probes; 8.9 ECH2O Probe; 8.10 Hydra Probe 327 $a8.11 Installation of Access Tubes for Dielectric Probes8.12 Permanent Installation of Rod-Type Probes; 8.13 Field Monitoring; 8.14 Soil Calibration; 8.15 Ground-Penetrating Radar; 8.16 Dielectric Methods - Conclusion; 9 Dual-Probe Heat-Pulse Sensors; 9.1 Introduction; 9.2 Principles of Operation; 10 Electrical Resistivity Imaging; 10.1 Introduction; 10.2 Theoretical Basis of ERI; 10.3 Measurement Methods; 10.4 Measurements in Practice; 10.5 Conclusion; Part III: Water Potential; 11 Water Potential Measurement; 11.1 Introduction; 11.2 Types of Sensor; 11.3 Sensitivity; 11.4 Response Time 327 $a12 Tensiometers12.1 Components of a Tensiometer; 12.2 The Porous Barrier; 12.3 The Body Tube; 12.4 The Air Trap; 12.5 The Pressure Sensor; 12.6 Construction of Tensiometers; 12.7 Tensiometer Installation; 12.8 Time before Tensiometers can be Read Reliably after Filling; 12.9 Reading of Tensiometers; 12.10 Tensiometer Maintenance; 12.11 Quality Control of Tensiometer Readings; 12.12 Deep Water Potential Measurements; Appendix 12.A Pressure Transducers; Appendix 12.B De-aired Water; 13 Indirect Methods of Water Potential Measurement; 13.1 Introduction; 13.2 Resistance Block 327 $a13.3 Equitensiometer 606 $aSoil moisture$xMeasurement$vHandbooks, manuals, etc 615 0$aSoil moisture$xMeasurement 676 $a631.4/32 700 $aCooper$b David J.$f1946-$0895748 702 $aCuenca$b Richard H. 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910137487603321 996 $aSoil water measurement$92001034 997 $aUNINA