نتایج جستجو برای: soil dynamics
تعداد نتایج: 612820 فیلتر نتایج به سال:
SU.M~IARY: This paper describes part of a study of vegetation/soil system dynamics in which d~e re]ationships were demonstrated bctween structuraJ chang<' of the forest, with"associated changes in composition, and changes in otganic matter and soil physical properties, particularly the quantities cf water and air in non-capillarypores. Becausc of these rcsults an a.nalysis,\','as made of the qu...
[1] In groundwater-dependent ecosystems, interactions between rainfall, water table fluctuations, and vegetation are exerted through the soil water content. The dynamics of soil moisture, in fact, are strongly coupled to fluctuations of the water table and, together, they control the overall ecosystem dynamics. We propose here a simple process-based stochastic model for the study of soil moistu...
1 Soil microbial biomass is a key determinant of carbon dynamics in the soil. Several studies have 2 shown that soil microbial biomass significantly increases with plant species diversity, but it 3 remains unclear if plant species diversity can also stabilize soil microbial biomass in a changing 4 environment. This question is particularly relevant as many global environmental change (GEC) 5 fa...
y@engr. (J.D. Ni Summary Soil moisture patterns and dynamics are important for numerous applications such as flood forecasting, climate modeling, and management of agricultural lands. Unfortunately, widespread observations of soil moisture are not currently available at the spatial scale of most of these applications. Given these data limitations and the complexity of soil moisture dynamics, th...
Quantifying target microbial populations in complex communities remains a barrier to studying species interactions in soil environments. Quantitative PCR (qPCR) assays were developed for quantifying pathogenic Streptomyces scabiei and antibiotic-producing Streptomyces lavendulae strains in complex soil communities. This assay will be useful for evaluating the competitive dynamics of streptomyce...
The spheropolyhedra method has been used earlier for efficient and accurate molecular dynamics simulations of granular matter with particles with complex shapes. Also the Voronoi construction is a tool of proved utility for the virtual representation of powders and grains. In this paper a technique that combines the two methods and provides a framework for the study of the three-dimensional mec...
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