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- Title
ANALYSIS OF CHARACTERISTICS OF NITROGEN MIGRATION IN THE PROCESS OF VEGETATION CONCRETE DEGRADING AMMONIA NITROGEN BASED ON THE <sup>15</sup>N ISOTOPE TRACER TECHNIQUE.
- Authors
QIN, P. Z.; WEI, C. L.; GUAN, Y.; ZHANG, W. Q.; BING, Y. X.; HUANG, D. W.; PANG, S. H.; YA, M. J.; CHENG, X. M.
- Abstract
Aiming at analyzing the contribution of every part of vegetation concrete system degrading ammonia nitrogen and exploring the nitrogen migration characteristics during denitrification process, 15NH4Cl tracer was used and added to six airtight glass containers in this study. Samples of concrete aggregate, Bahia grass (Paspalum notatum Flüggé), water and air were acquired on the 1std and 8thd. The results showed that the 15N Atom % of air samples had no obvious change. 15N tracer in each kind of samples taking up the percent of the initial dosing quantity were respectively, on the 1std: Bahia grass 3.8%~6.6%, aggregate 11.9%~17.2%, water 2.9%~80.5%, loss 3.3%~3.8%; on the 8thd: Bahia grass 65.3%~68.7%, aggregate 25.6%~26.2%, water 4.6%~4.8%, loss 0.8%~3.9%. Variance of the 15N abundance of each kind of samples indicate that 15NH4Cl tracer added in the culture solution was mainly absorbed by aggregate at early phase (1 d), while by plant assimilation at later phase (8 d).
- Subjects
EMBIID, Joel, 1994-; NITROGEN analysis; PLANT assimilation; CULTURE media (Biology); CONCRETE; AMMONIA
- Publication
Applied Ecology & Environmental Research, 2023, Vol 21, Issue 4, p3213
- ISSN
1589-1623
- Publication type
Article
- DOI
10.15666/aeer/2104_32133222