Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 192, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1007/s10661-020-08757-6
Keywords
Pedoindicators; Soil attribute; Multivariate analysis; Inceptsol; Aqualf; Alfisols
Categories
Funding
- National Council for Scientific and Technological Development (CNPq)
- Fundacao de Amparo a Pesquisa do Estado do Amazonas (FAPEAM)
- Higher Education Personnel Improvement Coordination (CAPES)
Ask authors/readers for more resources
This study aimed to ascertain what soil attributes may be an indicator of natural and anthropic pedogenic changes in top grassland (TG), low grassland (LG), ecotone zone (EZ), and forest (F) in Western Amazonia. Twenty samples of the diagnostic horizons were collected from the studied pedoenvironments: TG (A 0.0-14 and Bi 0.30-0.66 m); LG (A 0.0-0.15 and C-g1 0.27-0.80 m); EZ (A 0.0-0.15 and Bi 0.32-0.50 m); and forest (F) (A1 0.0-0.15 and B-t1 0.67-0.10 m). Sand, silt, clay, particle density (PD),soil bulk density (BD),saturated soil hydraulic conductivity, calcium (Ca), magnesium (Mg), exchangeable aluminum (Al3+), potassium (K), sodium (Na), phosphorus (P), pH in water and KCl, and organic matter (OM) contents were calculated and submitted to variance analysis. LG is more related to OM and clay than SHC value. These same attributes characterized TG. EZ is highlighted by its higher values and relationship with Al and K. It was concluded that for TG, LG, EZ, and F top soil layers, 28% of natural and anthropic changes can be identified based on sand, clay, pH in KCl, and OM data; on the other hand, subsurface 23% of determinations can be attributed to pH in H2O, Al, Na, and sand.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available