Database for Wetland area loss in Iran - status, trends, and understanding climate-wetland interactions
Authors/Creators
- 1. Iran University of Science and Technology
- 2. Stockholm University
- 3. KTH Royal Institute of Technology
Description
Wetlands have vital roles for biodiversity and ecosystem services to human societies, but wetland area is declining around the globe, including in Iran, which spans several climate zones (arid, semi-arid, dry, humid, humid) and has experienced large hydrological changes in recent decades. To facilitate the examination of wetland-climate change interactions, this study develops a new dataset for 136 natural wetland sites across Iran and its climate zones. The dataset includes physical characteristics, and societal sector uses of the wetlands, along with the wetland and climate changes that have occurred at each wetland site over 1992-2020. Application of the dataset to understanding the possible climate change role in driving wetland decline reveals that the area of Iranian wetlands has decreased by -36% over the country, by -61% and -50% in arid and semi-arid zones, respectively. At the scale of the whole country, the wetland decline is overall consistent with the climate change directions of temperature (warming) and precipitation (mainly decreasing). This dataset is a useful tool for further research to resolve main climatic and non-climatic driver-impact relationships for integrated catchment-wetland systems.
The database is provided in an Excel (xsls) file, comprising and organized 30cloumns as follows:
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Title |
Description |
Title |
Description |
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|
ID |
Wetland ID number (as shown in Fig.1) |
Perimeter |
Maximum perimeter length of wetland (km) |
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|
Name (in Persian) |
Name of wetland in Persian |
Depth |
Maximum possible depth of wetland (m) |
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Name |
Name of wetland in English |
Regime |
Permanent, seasonal |
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Ramsar |
1=If wetland is on Ramsar Convention list, 0=If wetland is not on Ramsar Convention list. |
ΔAloc |
Area change (km2) |
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|
X |
Longitude of wetland center |
Type (size) |
Classification of wetland size based on area: small (<250 km2); medium (250-800 km2); large (>800 km2) |
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Y |
Latitude of wetland center |
Saline /Fresh |
1= Saline water 0=Freshwater |
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T |
Long-term temperature average for wetland site (°C) |
Wetland water Sector usage |
Tourism |
1= If applicable, 0= If not |
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ΔTloc |
Change in average temperature (ΔT) at wetland site (°C) |
Agricultural |
1= If applicable, 0= If not |
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Ploc |
Long term precipitation average for wetland (mm/yr) |
Fishery |
1= If applicable, 0= If not |
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ΔPloc |
Change in average precipitation (ΔP) at wetland site (mm/yr) |
Water supply |
1= If applicable, 0= If not |
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PET |
Potential evapotranspiration (mm/yr), calculated as: PET = 325+21×T+0.9×T2 |
Other |
Other water usage |
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Aridity |
Long-term aridity index, calculated as: Aridity = P/PET |
Input water source |
River |
1= If applicable, 0= If not |
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Climate zone |
Climate zone based on UNEP: arid (A.) if Aridity index 0.03 to <0.2; semi-arid (Sa.) if Aridity index 0.2 to <0.5; dry sub-humid (Dh.) if Aridity index 0.5 to <0.65; humid if the Aridity index >0.65 |
Spring |
1= If applicable, 0= If not |
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Precipitation |
1= If applicable, 0= If not |
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Elevation |
Elevation (m above sea level) of wetland site |
Water output |
Out-River |
1= If applicable, 0= If not |
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Area |
Maximum area of wetland (km2) |
Evaporation |
1= If applicable, 0= If not |
Files
Files
(39.4 kB)
| Name | Size | Download all |
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md5:f2b4097bda64346e64b4ed901957bf68
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39.4 kB | Download |