+ Translate

Simulation of the wintertime nitrate shift in the soil

, : Simulation of the wintertime nitrate shift in the soil. Plant and Soil 49(2): 381-394

A simple method for the simulation of transport of non-adsorbed ions such as nitrate during winter is described. The physical model assumes that the soil water movement around the moving nitrate peak is always nearly (quasi-) stationary. Only the 1-dimensional convective-dispersive linear differential equation for the ion movement must be solved. Field capacity values of the soils and periodically averaged precipitation data are used to determine pore-water velocity. Diffusion and hydrodynamic dispersion data are taken from the literature. For the numerical solution a programmable table (micro-) computer could be used. Numerical dispersion is considered in a simple way. Simulated nitrate vs. depth distributions compare reasonably well with the measured nitrate profiles.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 006418773

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Allard, W.J.; Neaman, I.E.; Very, D.L.; Boyer, C.; Daly, L.; O'briant, K.S.; Yeung, K.K.; Bast, R.C.Jr, 1995: Nonspecific cross-reacting antigen 50/90 as a member of a cancer biomarker panel detects breast cancer recurrence with a lead time of 5-6 months. Proceedings of the American Association for Cancer Research Annual Meeting 36(0): 211

Chakinala, M.M.; Feldman, J.P.; Rischard, F.; Mathier, M.; Broderick, M.; Leedom, N.; Laliberte, K.; White, R.James., 2016: Transition from parenteral to oral treprostinil in pulmonary arterial hypertension. Parenteral prostanoids are effective treatment for pulmonary arterial hypertension, but long-term pump infusion systems have significant delivery-related safety and convenience limitations. Subjects with a favorable risk profile transitioned from...

Hicks, J. W., 1998: Phenotypic response to hypoxia Matching supply and demand. American Zoologist 38(5): 9A

Sandhya Agarwal; Nath, A.K.; Sharma, D.R., 2001: Characterisation of peach (Prunus persica L.) cultivars using isozymes as molecular markers. Six enzyme systems, viz. esterase, peroxidase, isocitrate dehydrogenase, malate dehydrogenase, acid phosphatase and alkaline phosphatase, were surveyed in 12 peach cultivars (Alton, Flavor Crest, Flordasun, Foster, Golden Bush, July Elberta, Kanto...

Van Berkel, G.J.; Kertesz, V., 2010: Application of a liquid extraction based sealing surface sampling probe for mass spectrometric analysis of dried blood spots and mouse whole-body thin tissue sections. The utility of a liquid extraction based sealing surface sampling probe (SSSP) for the direct mass spectrometric analysis of targeted drugs and metabolites in dried blood spots (DBSs) and whole mouse thin tissue sections was demonstrated. The accu...

Declerck, A., 2000: Which kind of problems can be observed with the switch from methylphenydate to modafinil. European Journal of Neurology 7(Supplement 3): 102, November

King, E.Boswell.; Schlundt, D.G.; Pichert, J.W.; Kinzer, C.K.; Backer, B.A., 2002: Improving the skills of health professionals in engaging patients in diabetes-related problem solving. Despite instruction, many patients do not employ diabetes-related self-management skills recommended by health professionals. One problem suggested by research is that many health professionals do not often use teaching and counseling skills widel...

Prakash, J.J.shi, R., 1981: Red rust , an algal malady of Him Champa. Indian phytopathology(pub 1981) 33(4): 597

Suzuki Yamamoto, T.; Toida, K.; Tsuruo, Y.; Watanabe, K.; Ishimura, K., 2000: Immunocytochemical localization of lung-type prostaglandin F synthase in the rat spinal cord. Prostaglandin F synthase, producing prostaglandin F2alpha and 9alpha,11beta-prostaglandin F2, has at least two isozymes, lung-type and liver-type ones. The present study including double immunolabelling with microtubule-associated protein 2 indica...

Saarma, U.; Remme, J.; Ehrenberg, M.; Bilgin, N., 1997: An A to U transversion at position 1067 of 23 S rRNA from Escherichia coli impairs EF-Tu and EF-G function. Escherichia coli ribosomes with an A to U transversion at nucleotide 1067 of their 23 S rRNA are impaired in their effective association rate constants (k-cat/K-M) for both EF-Tu and EF-G binding. In addition, the times that EF-G and EF-Tu spend o...