Solute-specific pore water irrigation: Implications for chemical cycling in early diagenesis
نویسندگان
چکیده
منابع مشابه
Solute-specific pore water irrigation: Implications for chemical cycling in early diagenesis
In one-dimensional (1D) early diagenetic models, bioirrigation is typically represented by a nonlocal mass transfer or bioirrigation coefficient, . Usually, all pore water species are assigned the same . Here, we show that this assumption can lead to significant errors in estimates of bioirrigation intensities. Using a simplified early diagenetic reaction network, we compute the 3D concentratio...
متن کاملIrrigation efficiency and water-policy implications for river basin resilience
Rising demand for food, fiber, and biofuels drives expanding irrigation withdrawals from surface water and groundwater. Irrigation efficiency and water savings have become watchwords in response to climate-induced hydrological variability, increasing freshwater demand for other uses including ecosystem water needs, and low economic productivity of irrigation compared to most other uses. We iden...
متن کاملEconomic and Social Value of Irrigation Water: Implications for Sustainability
The economic value of irrigation water was determined through Contingency Valuation Method and Crop-Water Production function during wet and dry season of paddy cultivation. Factors namely, area under rice and water requirement influenced the willingness to pay for water by farmers. Social values of farmers’ over water were found to be high. The comparison of the economic value of water estimat...
متن کاملDynamic Modeling of Early Diagenesis and Nutrient Cycling. a Case Study in an Arctic Marine Sediment
In this paper, we present a dynamic diagenetic model of the oxygen consumption pathways and cycling of carbon, nitrogen, manganese, iron, and sulfur in marine sediments. Sixteen dissolved or solid species are included in our model and the vertical transport processes accounted for are molecular diffusion, bioturbation, irrigation, and burial. Adsorption of dissolved species onto solid sediment ...
متن کاملSubaqueous shrinkage cracks in the Sheepbed mudstone: Implications for early fluid diagenesis, Gale crater, Mars
The Sheepbed mudstone, Yellowknife Bay formation, Gale crater, represents an ancient lakebed now exhumed and exposed on the Martian surface. The mudstone has four diagenetic textures, including a suite of early diagenetic nodules, hollow nodules, and raised ridges and later diagenetic light-toned veins that crosscut those features. In this study, we describe the distribution and characteristics...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Marine Research
سال: 2005
ISSN: 0022-2402,1543-9542
DOI: 10.1357/0022240054307885