@Article{TrabaquiniFormGalv:2015:ChPhPr,
               author = "Trabaquini, Kleber and Formaggio, Ant{\^o}nio Roberto and 
                         Galv{\~a}o, L{\^e}nio Soares",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Changes in physical properties of soils with land use time in the 
                         brazilian savanna environment",
              journal = "Land Degradation and Development",
                 year = "2015",
               volume = "26",
               number = "4",
                pages = "397--408",
                month = "May",
             keywords = "land cover change, land use time, soil degradation, remote 
                         sensing, Brazilian savannas, soybean yield.",
             abstract = "Soils from central Brazil have been intensively used over the last 
                         decades because of the rapid conversion of savannas (Cerrado) into 
                         corn/soybean fields. The objective of this work is to study 
                         modifications in the physical properties of soils in the Rio Verde 
                         watershed, as a function of the land use time for agriculture, 
                         determined from classification of Landsat satellite images between 
                         1980 and 2010. Soil samples were collected at surface (0-20cm) and 
                         subsurface (20-40cm) horizons for the different classes of land 
                         use time (<10, 10-20, 20-30, and >30years). The following physical 
                         properties were measured: bulk density (BD), air permeability 
                         (Ka), penetration resistance (PR), microporosity (MI), 
                         macroporosity (MA), and total porosity (TP). Results showed a 
                         strong expansion with time of agriculture that occupied 35·3% 
                         (1980), 37·4% (1990), 51·3% (2000), and 60·9% (2010) of the 
                         watershed area. When properties were compared with those from the 
                         reference areas (preserved soils under native vegetation), 
                         significant differences were observed for all the physical 
                         attributes of soils for a land use time higher than 20years. 
                         Overall, BD and PR increased with land use time, and the opposite 
                         was verified for Ka, MA, and TP. Some physical properties 
                         presented values (e.g., 1·54gcm-3 for BD and 0.06cm3cm-3 for MA) 
                         close to the critical ones reported to affect crop development, 
                         but they were not still impacting on local soybean yield.",
                  doi = "10.1002/ldr.2222",
                  url = "http://dx.doi.org/10.1002/ldr.2222",
                 issn = "1085-3278 and 1099-145X",
                label = "scopus",
             language = "en",
           targetfile = "trabaquini-CHANGES.pdf",
        urlaccessdate = "27 abr. 2024"
}