NVS Express Data Entry, Validation and Analysis Tool
NVS Express is a purpose built Windows tool for entering and summarising vegetation
data compatible with the NVS databank and accepts data collected using the NVS standard
forest monitoring (i.e. Permanent 20×20 m plots) and vegetation inventory (i.e.
the Recce method) methods. Refer to the NVS Survey
Manuals for more information on the standard NVS data collection methods.
NVS Express was built to provide data entry facilities for NVS data and tools to
validate, exchange, convert, and summarise data stored within NVS (see
Richardson et al. 2005 (432MB Acrobat file)).
NVS Express provides the following features and benefits:
- Allows data entry for plot, recce, seedling, sapling, and individual tree stems
data that follow standard NVS collection methods
- Provides data validation services, including checking that valid data types are
used, controlling the range of values that may be entered within each data-field,
checking that species codes used are those currently recognised by NVS, and a range
of post-entry dataset checks that ensure data integrity
- Ability to export a dataset ready for upload into NVS via the NVS web site and to
a range of external formats
- Ability to import updated authority data, e.g., NVS species codes.
- Ability to summarise (tabulations, cross-tabulations, histograms, and summary statistics)
of site, Recce, understorey and tree diameter data
- Ability to analyse temporal changes in permanent plot data. This includes Recce,
understorey and tree diameter data and provides the facility to examine growth and
mortality of individually tagged trees.
- Ability to classify composition data using TWINSPAN.
NVS Express is a Windows application and will run on Windows 2000 and above. The
tool requires that the Microsoft .Net framework is loaded on your computer. If the
.Net framework is not present on your computer you will be asked to download this
as part of the installation process. Please read the
NVS Express manual for more information about how to install and use the
tool.
To download a copy of NVS Express please follow the link below.
Some example screen shots from NVS Express.
NVS Express Workshop Resources
The
Terrestrial and Freshwater Biodiversity Information System (TFBIS) recently
funded eight training workshops on NVS Express. Workshop materials can be downloaded
here:
In the future, further NVS Express workshops will be run. To register your interest
in attending a workshop, please e-mail the NVS adminstrator (nvs@landcareresearch.co.nz)
with your name, organisation, preferred workshop location and what you would like
to learn at the workshop.
