A large-scale re-vegetation supported by the Grain for Green Project (GGP) has greatly changed local eco-hydrological systems, with an impact on soil moisture conditions for the Chinese Loess Plateau. It is important to know how, exactly, re-vegetation influences soil moisture conditions, which not only crucially constrain growth and distribution of vegetation, and hence, further re-vegetation,...

This experiment compared commercially available moisture meters (three capacitive metersand one resistance meter) and tested their predictive ability at different conditions on selected beech (Fagus sylvatica) spruce (Picea abies (L.) Karst.) wood samples. The measurements were carried out the samples specified intervals ranging from 5% to 30% content (MC). meter showed a close correlation grav...

The main task was to receive a robust transfer function for the capacitive grain moisture measurement system. It estimated how new compensates type uncertainty and close it is nominal values of content. Dispersions adequacy repeatability function, which describe possible variation in measured correspondence with linear meter respectively, were calculated five chosen substances. proved that has ...

In a new measurement technique, impedance spectroscopy is used with fringing electric field sensors to measure the concentration of moisture, fiber, and titanium dioxide in pulp. This method can be integrated into a paper machine without disrupting the manufacturing process because the measurements are taken without contacting the pulp. Experimental results show consistent accuracy is when the ...

Soil moisture is a key variable in dryland ecosystems since it determines the occurrence and duration of vegetation water stress and affects the development of weather patterns including rainfall. However, the lack of ground observations of soil moisture and rainfall dynamics in many drylands has long been a major obstacle in understanding ecohydrological processes in these ecosystems. It is al...

An electronic method to estimate the moisture content (MC) of dry fruits by measuring the impedance (Z) and phase angle (θ) of a cylindrical parallel-plate capacitor with dry fruit sample between the plates, using a CI meter (Chari’s Impedance meter) at 1 and 9 MHz is described. Capacitance C was derived from Z and θ, and using the C, θ, and Z values of a set of dried cherries, whose MC values ...

The permanent wilting point is often considered the lower limit for plant available water and can be measured in laboratory using a pressure plate apparatus (traditional method) or dewpoint potential meter (modern method). However, recent evidence suggests substantial discrepancy between soil moisture at points derived from these two techniques. This preliminary study investigated magnitude of ...

Chemical, paleontological, and mineralogical analyses of a 7.5-meter core from the middle of Lake Valencia, Venezuela, have provided information on the paleoclimatic history of this low-elevation, low-latitude site for the last 13,000 years. The data show that dry climates existed in this region from 13,000 years before present (B.P.) until about 10,000 years B.P. The Lake Valencia Basin was oc...