Title of article :
Spatial Decision Analysis on Wetlands Restoration in the Lower Reaches of Songhua River (LRSR), Northeast China, Based on Remote Sensing and GIS
Author/Authors :
Dong، z.y نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China , , Wang، z.m نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China , , Liu، d.w نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China , , Song، k.s نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China , , Li، l نويسنده Department of Earth Sciences, Indiana University-Purdue University, Indianapolis, IN 46202, USA , , Ren، c.y نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China , , Jia، m.m نويسنده Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China ,
Abstract :
Wetlands in the Lower Reaches of Songhua River (LRSR), Northeast China, are rich in biodiversity
and natural resources, which provide crucial staging and wintering habitats for various endangered species.
However, in the past five decades, the size of this wetland area has decreased, and its quality has deteriorated
because of increased natural and human activities. Wetland restoration is critical to improve these conditions.
In this study, hydrological regulation and habitat suitability, the most important wetland functions, were
selected and analyzed to identify suitable wetland restoration sites. By using these two function layers,
together with the geographic information system (GIS) spatial analysis function and remote sensing (RS)
image data, we identified and prioritized suitable sites for wetland restoration in the LRSR. Areas with high
hydrological regulation and good or fair waterbirds’ habitat suitability can support wetland restoration. The
potential sites were prioritized in terms of patch size and proximity to natural wetlands and water bodies.
Finally, we obtained two priority classes (high and low) of wetland restoration in a spatial scale. The results
from this study showed that the areas with high and low priority classes for wetland restoration are 82,628
and 247,039 ha, respectively, which account for 1.23% and 3.67% of the total study area. The high-priority
class areas would be used for the wetland restoration.
