Repeated monitoring
(according to rain events: +/- 7 to 8 time a year) monitoring supported by digital photography and direct measures:
- Regular soil surface assessment (crusting/surface structure, roughness) year 1 and 2 with quadrat-points and then, with chain.
- Crop characteristics: height (m), yield.
- Mulch and vegetation cover fraction, digital analysis using 1m2 frames at sample locations.
- CO2 respiration (one time a month from 2005 to 2007).