− | [[File:Soil bulk density figure 8.7.PNG|thumb|305px|Maximum allowable bulk density values by soil texture class (Sustainable Sites Initiative, 2009). '''Click to enlarge'''.<ref>Sustainable Sites Initiative. 2009. The Sustainable Sites Initiative: Guidelines and Performance Benchmarks. American Society of Landscape Architects, Lady Bird Johnson Wildflower Center at The University of Texas at Austin, United States Botanic Garden and Sustainable Sites Initiative, Austin, TX. https://digital.library.unt.edu/ark:/67531/metadc31157/</ref>]] | + | [[File:Soil bulk density figure 8.7.PNG|thumb|325px|Maximum allowable bulk density values by soil texture class (Sustainable Sites Initiative, 2009). '''Click to enlarge'''.<ref>Sustainable Sites Initiative. 2009. The Sustainable Sites Initiative: Guidelines and Performance Benchmarks. American Society of Landscape Architects, Lady Bird Johnson Wildflower Center at The University of Texas at Austin, United States Botanic Garden and Sustainable Sites Initiative, Austin, TX. https://digital.library.unt.edu/ark:/67531/metadc31157/</ref>]] |