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- Title
Assessing Water Infiltration and Soil Water Repellency in Brazilian Atlantic Forest Soils.
- Authors
Lozano-Baez, Sergio Esteban; Cooper, Miguel; de Barros Ferraz, Silvio Frosini; Ribeiro Rodrigues, Ricardo; Lassabatere, Laurent; Castellini, Mirko; Di Prima, Simone
- Abstract
This study presents the results of the soil hydraulic characterization performed under three land covers, namely pasture, 9-year-old restored forest, and remnant forest, in the Brazilian Atlantic Forest. Two types of infiltration tests were performed, namely tension (Mini-Disk Infiltrometer, MDI) and ponding (Beerkan) tests. MDI and Beerkan tests provided complementary information, highlighting a clear increase of the hydraulic conductivity, especially at the remnant forest plots, when moving from near-saturated to saturated conditions. In addition, measuring the unsaturated soil hydraulic conductivity with different water pressure heads allowed the estimation of the macroscopic capillary length in the field. This approach, in conjunction with Beerkan measurements, allowed the design better estimates of the saturated soil hydraulic conductivity under challenging field conditions, such as soil water repellency (SWR). This research also reports, for the first time, evidence of SWR in the Atlantic Forest, which affected the early stage of the infiltration process with more frequency in the remnant forest.
- Subjects
WATER seepage; SOIL infiltration; SOIL moisture; FOREST soils; SOIL permeability; STORMWATER infiltration; GRASSLAND soils
- Publication
Applied Sciences (2076-3417), 2020, Vol 10, Issue 6, p1950
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app10061950