The contribution of nitrogen (N) supply is an essential source for the growth of apple trees from budding to fruiting. In new apple-producing regions of north China, such as the Shenyang area, air temperature rises rapidly, while in contrast, soil temperature rises very slowly. In such weather conditions, the amount of nitrogen absorbed by the roots is not sufficient for the growth and developm...

Temperature is an important factor regulating microbial activity and shaping the soil microbial community. Little is known, however, on how temperature affects the most important groups of the soil microorganisms, the bacteria and the fungi, in situ. We have therefore measured the instantaneous total activity (respiration rate), bacterial activity (growth rate as thymidine incorporation rate) a...

The objective of this study was to investigate the effects of slightly elevated atmospheric temperature in the spring on photosynthetic products in wheat seedlings and on organic compounds and biological activity in rhizosphere soil under cadmium (Cd) stress. Elevated temperature was associated with increased soluble sugars, reducing sugars, starch, and total sugars, and with decreased amino ac...

The response of microbial respiration from soil organic carbon (SOC) decomposition to environmental changes plays a key role in predicting future trends of atmospheric CO2 concentration. However, it remains uncertain whether there is a universal trend in the response of microbial respiration to increased temperature and nutrient addition among different vegetation types. In this study, soils we...

Egeberg, Roger O. (University of Southern California, Los Angeles), Ann F. Elconin, and Margaret C. Egeberg. Effect of salinity and temperature on Coccidioides immitis and three antagonistic soil saprophytes. J. Bacteriol. 88:473-476. 1964.-Experiments exploring the factors which determine the ability of Coccidioides immitis to survive and reproduce in the soil in situ are described and discuss...

The world’s first satellite dedicated to soil moisture measurement was launched by the European Space Agency on 2nd November 2009. One objective of this Soil Moisture and Ocean Salinity (SMOS) mission is to obtain global near-surface (top ~5 cm) soil moisture every 2 to 3 days with a target accuracy of 0.04 m/m. To achieve this goal, the Microwave Imaging Radiometer with Aperture Synthesis (MIR...

Respiration is a major avenue of carbohydrates loss. The objective of the present study was to examine root respiratory characteristics associated with root tolerance to high soil temperature for two Agrostis species: thermal Agrostis scabra, a species adapted to high-temperature soils in geothermal areas in Yellowstone National Park, and two cultivars ('L-93' and 'Penncross') of a cool-season ...

Reliable soil moisture measurement over large areas is much needed for both hydrologic modelling and remote sensing applications. For collecting such data, portable electronic sensors offer a practical alternative to gravimetric measurements. The conversion of the measured electrical output to soil moisture is nonetheless a non-trivial task as it depends on soil type and temperature. In this st...

The occurrence of microbial enteropathogens in the environment can represent a serious risk to human health. The fate of enteropathogens introduced into the soil environment is dependent on a wide range of complex interacting environmental factors. While the effect of abiotic factors on enteropathogen survival has been widely examined, the interaction of enteropathogens with the soil microbial ...

Population densities of Belonolaimus longicaudatus, Pratylenchus brachyurus, and Trichodorus christiei were determined from soil samples taken weekly in Tifton, Georgia during a 14-month period (except for April and May) at 15-cm increments to a depth of 105 cm. Belonolaimus longicaudatus predominately inhabited the top 30 cm of soil that was 87-88% sand, 6-7% silt, and 5-7% clay. No specimens ...