Short Communication: Forage mixture responses to water stress in semi-arid prairie grassland: a pot experiment
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چکیده
منابع مشابه
Short communication Using a modified DNDC model to estimate N2O fluxes from semi-arid grassland in China
Field measurement results showed that approximately 40% of the annual N2O losses occurred during the non-growing season and confirmed the importance of spring and autumn periods for assessment of total N2O losses from semi-arid temperate grassland in China. In the previous study, we found that the 7.2 version of Denitrification–Decomposition (DNDC) model had significantly lower estimates of N2O...
متن کاملResponses of enzymatic activities within soil aggregates to 9-year nitrogen and water addition in a semi-arid grassland
Soil microorganisms secrete enzymes used to metabolize carbon (C), nitrogen (N), and phosphorus (P) from the organic materials typically found in soil. Because of the connection with the active microbial biomass, soil enzyme activities can be used to investigate microbial nutrient cycling including the microbial response to environmental changes, transformation rates and to address the location...
متن کاملPhysiological Responses of Pteropyrum aucheri to Short-term Warming in Semi-arid Rangelands (Case Study: Kohpanj Region, Kerman Province, Iran)
Scientists predict climate changes and warmer conditions for the world in future. Predicting the warming effect on plant performance is one of the most important challenges in ecological sciences. In this study, the effects of short-term warming on physiological traits of Pteropyrum aucheri as one of the domain shrubs was assessed in riverside of semi-arid rangelands of Kohpanj region, Bardsir,...
متن کاملVegetation–soil water interaction within a dynamical ecosystem model of grassland in semi-arid areas
A dynamical ecosystem model with three variables, living biomass, wilted biomass and available soil wetness, is developed to examine the vegetation–soil water interaction in semi-arid areas. The governing equations are based on the mass conservation law. The physical and biophysical processes are formulated with the parameters estimated from observational data. Both numerical results and qualit...
متن کاملWho Engages in Water Scarcity Conflicts? A Field Experiment with Irrigators in Semi-arid Africa
Does water scarcity induce conflict? And who would engage in a water scarcity conflict? In this paper we look for evidence of the relation between water scarcity and conflictive behavior. With a framed field experiment conducted with smallholder irrigators from semi-arid Tanzania that replicates appropriation from an occasionally scarce common water flow we assess what type of water users is mo...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 2012
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps2011-283