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Location China (mainland), Jiangsu
Central coordinates 118o 13.00' East  33o 19.00' North
IBA criteria A1, A4i, A4iii
Area 10,000 ha
Altitude 15 m
Year of IBA assessment 2009

Site description Hongze Hu is located in northern Jiangsu Province. The lake area is c.196,000 ha, and it is the largest reservoir in the Huai He region. The western part of the lake has extensive areas of wetland plants, and the remaining parts are largely open water.

Key Biodiversity 

Non-bird biodiversity: No information.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Swan Goose Anser cygnoid unknown  2008  present  A1  Vulnerable 
Baikal Teal Sibirionetta formosa unknown  2008  present  A1  Least Concern 
Oriental Stork Ciconia boyciana winter  2008  present  A1  Endangered 
Great Bustard Otis tarda winter  2008  present  A1  Vulnerable 
White-naped Crane Antigone vipio passage  2008  present  A1, A4i  Vulnerable 
A4iii Species group - waterbirds unknown  2008  present  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Hongzehu Nature Reserve 23,453 protected area contains site 10,000  
Sihong xiangyangshuiku Nature Reserve 10,000 is identical to site 10,000  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   -
Wetlands (inland)   -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Sihong Wetland of Hongze Hu. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife