Abstract
Abstract. Geography and associated hydrological, hydroclimate and land-use conditions and their changes determine the states and dynamics of wetlands and their ecosystem services. The influences of these controls are not limited to just the local scale of each individual wetland but extend over larger landscape areas that integrate multiple wetlands and their total hydrological catchment – the wetlandscape. However, the data and knowledge of conditions and changes over entire wetlandscapes are still scarce, limiting the capacity to accurately understand and manage critical wetland ecosystems and their services under global change. We present a new Wetlandscape Change Information Database (WetCID), consisting of geographic, hydrological, hydroclimate and land-use information and data for 27 wetlandscapes around the world. This combines survey-based local information with geographic shapefiles and gridded datasets of large-scale hydroclimate and land-use conditions and their changes over whole wetlandscapes. Temporally, WetCID contains 30-year time series of data for mean monthly precipitation and temperature and annual land-use conditions. The survey-based site information includes local knowledge on the wetlands, hydrology, hydroclimate and land uses within each wetlandscape and on the availability and accessibility of associated local data. This novel database (available through PANGAEA https://doi.org/10.1594/PANGAEA.907398; Ghajarnia et al., 2019) can support site assessments; cross-regional comparisons; and scenario analyses of the roles and impacts of land use, hydroclimatic and wetland conditions, and changes in whole-wetlandscape functions and ecosystem services.
Highlights
IntroductionWetlands contribute more than 20 % of the total value of global ecosystem services (Costanza et al, 2014), while covering only a small percentage (4 %–9 %) of global land surface (Morganti et al, 2019; Zedler and Kercher, 2005; Mitsch and Gosselink, 2000)
We present a new Wetlandscape Change Information Database (WetCID), consisting of geographic, hydrological, hydroclimate and land-use information and data for 27 wetlandscapes around the world
Wetlands contribute more than 20 % of the total value of global ecosystem services (Costanza et al, 2014), while covering only a small percentage (4 %–9 %) of global land surface (Morganti et al, 2019; Zedler and Kercher, 2005; Mitsch and Gosselink, 2000)
Summary
Wetlands contribute more than 20 % of the total value of global ecosystem services (Costanza et al, 2014), while covering only a small percentage (4 %–9 %) of global land surface (Morganti et al, 2019; Zedler and Kercher, 2005; Mitsch and Gosselink, 2000). Wetlands are associated with a diverse range of functions, such as water quality remediation (e.g., Chalov et al, 2017; Quin et al, 2015), regulation of soil moisture and groundwater replenishment (e.g., Ameli and Creed, 2019; Golden et al, 2017), flood control (e.g., Quin and Destouni, 2018; Acreman and Holden, 2013), and biodiversity conservation (e.g., Cohen et al, 2016; Mitchell et al, 2008) Through these functions, wetlands can support regional sustainability (Seifollahi-Aghmiuni et al, 2019) but are one of the most vulnerable ecosystems globally (Golden et al, 2017). As a consequence of various change impacts, wetland areas are suffering rapid and continued decline in different regions worldwide (Davidson et al, 2018; Davidson, 2014)
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