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- Title
Aggregation Stability and Carbon Pools in Extremely Kaolinitic Soils from the East Coast of Brazil as Affected by Land Use Changes.
- Authors
Ercole, Tamires Maiara; Gomes, João Bosco Vasconcellos; Motta, Antônio Carlos Vargas; Ferreira, Mozart Martins; Inda, Alberto Vasconcellos; Mancini, Marcelo; Curi, Nilton
- Abstract
The aim of this study was to evaluate the differential response to land use changes between native forest and croplands regarding the quantitative soil variables of aggregate weight classes and different carbon pools in extremely kaolinitic soils from the east coast of Brazil. In the soil A horizon, the total (TOC) and dissolved (DOC) organic carbon contents were analyzed. In the 0–0.08 m soil layer, the weight and the organic carbon content (Cag) were determined for six size aggregate classes. The mean differential (Δ) of each property for each area was calculated. Overall, the TOC and DOC were greater in the native forest sites over the counterpart cultivated sites within each area. The ΔDOC of all the five areas were negative. The ΔCag of the 1–2 mm and 0.053–0.105 mm soil aggregate classes of Sooretama were the only ones with mean positive values. The ordination of the five areas by the ΔCag in the six soil aggregate size classes isolated Coruripe as the area with the most negative differentials, because of the forest conservation and management of the cropland. The differentials of organic carbon between forest and agricultural use of the analyzed properties did not reveal a possible effect of soil texture.
- Subjects
BRAZIL; ATLANTIC Coast (U.S.); LAND use; SOIL structure; FOREST conservation; FOREST soils; FOREST management; SOIL texture
- Publication
Sustainability (2071-1050), 2023, Vol 15, Issue 2, p1204
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su15021204