Campbell HydroSense II Instrukcja Obsługi Pobierz pdf (Strona 4)

HydroSense Table of Contents

A. Definition of Water Content Terms .......................A-1

A.1 Definition of Water Content Terms..................................................... A-1

B. How Many Soil Water Content Measurements

Are Enough .......................................................... B-1

B.1 Introduction to Spatial Variability....................................................... B-1

B.2 An Example......................................................................................... B-1

B.3 Some Background on Confidence Intervals......................................... B-1

B.4 Determining the Minimum Number of Samples.................................. B-2

Figures

1-1 HydroSense display unit and probe with 12 cm rods............................... 1

4-1 Selecting probe rod length ....................................................................... 5

5-1 HydroSense display in Water Deficit Mode ............................................ 7

5-2 Selecting the site, lower (0) and upper (100) reference levels ................. 8

5-3 Relative water content and deficit for example application ..................... 9

8-1 Rear view of the HydroSense display unit with battery cover removed. 13

Tables

B.2-1 Sample Water Content Data............................................................. B-1

1 2 3 4 5 6 7 8 9 ... 25 26

Brak uwag

Campbell HydroSense II Instrukcja Obsługi Strona 4