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CAD Information
International Society of Arboriculture
International Society of Arboriculture
INTRODUCTION AND USE CRITERIA
The details and specifications posted on the ASLA
website are intended to be used as guidelines by qualified landscape architects
who have a basic understanding of plant biology and soil science. It is
assumed that prior to using these guidelines to develop a set of contract
documents, the landscape architect has undertaken a survey of the different
types of soil at the site including: hand probing of all soil areas where the
subtleties of the existing site vegetation, topography, drainage patterns and
overlays of the sited development history suggest the potential for different
soil patterns. The soil survey must include sampling and laboratory
testing of each soil type encountered. The testing should meet the same
level of evaluation as required for the testing of topsoil as found in the
specification guidelines of this document. These details also assume that
the landscape architect understands the proposed site construction sequencing
patterns well enough to predict the pattern of soil disturbance during the
proposed construction period and the types of soils and compaction levels that
will exist and the completion of the construction.
Prior to using the ISA Planting Guidelines the
landscape architect must read all notes and the specifications that describe the
assumptions and basis for the guidelines. The ISA planting details and
specifications must be considered as guidelines only and must not be used
directly from the CAD details source without first undertaking a full
investigation of the assumptions on which the details and specifications are
based. The landscape architect must make modifications and changes to
these guidelines in all cases where existing and or local conditions of soils,
climate, plant type and labor practice suggest that different requirements are
appropriate or necessary.
February 28, 2000
International Society of Arboriculture
INTERNATIONAL SOCIETY OF ARBORICULTURE
1400 West Anthony Drive
Champaign, Illinois 61821
Contact: Jim Skiera
Phone: (217) 355-9411
Fax: (217) 355-9516
Website: www.isa-arbor.com
E-mail: jskiera@isa-arbor.com
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