Database Report

Vegetation Database of Iran (IranVeg) -- A national Iranian vegetation database

Alireza Naqinezhad, Jalil Noroozi & Soghra Ramzi

GIVD Database ID: AS-IR-001	Last update: 2024-12-07
Vegetation Database of Iran (IranVeg)	Web address:
Database manager(s): Alireza Naqinezhad (anaqinezhad@gmail.com); Jalil Noroozi (jalil.noroozi@univie.ac.at); Soghra Ramzi (s.ramzi91@gmail.com)
Owner: Consortium of the Vegetation Database of Iran (IranVeg Consortium). Individual datasets are owned by the data authors, lists of whom are available within the database.
Scope: IranVeg is a national database from Iran. This database provides 13,411 vegetation plots from various habitats and vegetation types across the whole country.
Abstract: Iran, encompassing a vast territory spanning 1,648,195 km2, features altitudes ranging from 26 m b.s.l. to 5,671 m a.s.l. at Mount Damavand. The country exhibits a diverse range of climatic conditions, from arid regions with less than 50 mm of precipitation in central deserts to areas in the north receiving over 2,000 mm of precipitation annually. This ecological diversity gives rise to various ecosystems and vegetation types across Iran. The IranVeg database represents a significant initiative aimed at creating a comprehensive repository of Iran’s vegetation. This database, which is both geographically and floristically representative at the national level, holds immense value for analyzing biodiversity patterns and forecasting future changes in the region. Its growth is anticipated through the continuous addition of new data contributed by vegetation scientists. The database currently comprises 13,411 vegetation plots. These plots represent a wide array of vegetation types found in Iran, including deciduous forests (18.0%), woodlands and shrublands (5.6%), steppes and other grasslands (52.0%), saline depressions (9.3%), wetlands (12.2%), and anthropogenic habitats (2.9%).
Availability: according to a specific agreement	Online upload: no	Online search: no
Database format(s): TURBOVEG, Excel	Export format(s): TURBOVEG, Excel, CSV file, plain text file
Plot type(s): normal plots, nested plots	Plot-size range (m²): 0.0001 to 10000
Non-overlapping plots: 13411	Estimate of existing plots: 20000	Completeness: 67%	Status: completed and continuing
Total no. of plot observations: 13411	Number of sources (biblioreferences, data collectors): 100	Valid taxa: 3919
Countries (%): IR: 100
Formations: Forest: 18% = Terrestrial: 18% // Non Forest: 82% = Aquatic: 3%; Semi-aquatic: 9%; Terrestrial: 70% (Arctic-alpin: 8%; Non arctic-alpin: 62% [Natural: 59%; Anthropogenic: 3%])
Guilds:
Plot size categories (%): < 1 m2: 24.3%; 1-10 m2: 17.7%; 10-100 m2: 28.8%; 100-1000 m2: 19.9%; 1000-10000 m2: 1.0%; >= 10000 m2: 0%; unknowmn: 8.3%;
Environmental data (%): altitude: 80; slope aspect: 50; slope inclination: 60; microrelief: 9; surface cover other than plants (open soil, litter, bare rock etc.): 38; other soil attributes: 21; soil pH: 29; land use categories: 16; other attributes: organic matter (21), nitrogen (22), phosphorus (13), potassium (14), calcium carbonate (11), electrical conductivity (17), sand (25), silt (25), and clay (25)
Performance measure(s): presence/absence only: 10.8%; cover: 89.2%
Geographic localisation: GPS coordinates (precision 25 m or less): 70.6%; political units or only on a coarser scale ( above 10 km): 29.4%
Sampling periods: before 1920: 0%; 1920-1929: 0%; 1930-1939: 0.2%; 1940-1949: 0%; 1950-1959: 0.1%; 1960-1969: 0.1%; 1970-1979: 5.3%; 1980-1989: 1.1%; 1990-1999: 6.4%; 2000-2009: 25.7%; 2010-2019: 58.9%; after 2020: 2.1%; unknown: 0%
Information as of 2026-06-17; further details and future updates available from http://www.givd.info/ID/AS-IR-001

Alireza Naqinezhad* (anaqinezhad@gmail.com)
Plant Sciense , University of Mazandaran, IRAN
Jalil Noroozi (jalil.noroozi@univie.ac.at)
Department of Botany and Biodiversity Research, University of Vienna, AUSTRIA
Soghra Ramzi (s.ramzi91@gmail.com)
Plant sciense, University of Mazandaran, IRAN
* corresponding author