[1] In part 1 of this study (Prigent et al., 2004), in situ measurements were used to analyze and describe the sensitivities of satellite measurements (i.e., active and passive microwave observations and surface skin temperature diurnal cycle amplitude) to the soil moisture variations to describe the complex relationships that exist between them. Soil moisture was considered in the first 10-cm ...

Sulfentrazone is amongst the most widely used herbicides for treating the main crops in the State of São Paulo, Brazil, but few studies are available on the biotransformation of this compound in Brazilian soils. Soil samples of Rhodic Hapludox soil were supplemented with sulfentrazone (0.7 µg active ingredient (a.i.) g(-1) soil) and maintained at 27°C. The soil moisture content was corrected to...

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: On the spatio-temporal dynamics of soil moisture at the field scale s u m m a r y In this paper, we review the state of the ...

The responses of soil respiration to environmental conditions have been studied extensively in various ecosystems. However, little is known about the impacts of temperature and moisture on soils respiration under biological soil crusts. In this study, CO2 efflux from biologically-crusted soils was measured continuously with an automated chamber system in Ningxia, northwest China, from June to O...

For obtaining spatial-temporal soil moisture information in large range, a study on the relationship of soil moisture and dielectric constant obtained by space-borne microwave radiometers and scatterometers data was performed. Microwave signal is much related to dielectric constant of object observed, and soil dielectric constant is decided by soil moisture, this is the basis of using microwave...

Fluctuations in soil moisture create drying-rewetting events affecting the activity of microorganisms. Microbial responses to drying-rewetting are mostly studied in soils that are air-dried before rewetting. Upon rewetting, two patterns of bacterial growth have been observed. In the Type 1 pattern, bacterial growth rates increase immediately in a linear fashion. In the Type 2 pattern, bacterial...

6 [1] Soil moisture is a critical element in the hydrological cycle especially in a semiarid 7 or arid region. Point measurement to comprehend the soil moisture distribution 8 contiguously in a vast watershed is difficult because the soil moisture patterns might 9 greatly vary temporally and spatially. Space-borne radar imaging satellites have been 10 popular for they may exhibit all-weather ob...

This paper examines the role of soil moisture in quantifying drought through the development of a drought index using observed and modeled soil moisture. In Nebraska, rainfall is received primarily during the crop-growing season and the supply of moisture from the Gulf of Mexico determines if the impending crop year is either normal or anomalous and any deficit of rain leads to a lack of soil m...