China 2 Ecosystems 2 Estuaries 2 Liaohe Estuary 2 Liaoning Balearica pavonina 1 Biodiversity 1 Birds 1 Climate change 1 Coastal estuary 1 Conservation management 1 Decision making 1 Development activity 1 Diversity 1 Driving factors 1 Ecological stability 1 Ecosystem health 1 Environmental change 1 Estuary wetland ecosystem 1 Estuary wetlands 1 Liaohe estuary 1 Non-metric multi-dimensional scaling 1 Nonmetric multi-dimensional scaling 1 Nonmetric multi-dimensional scaling (NMS) 1 PSR model and Rrough Set theory 1 PSR model and rrough set theory 1 Population distribution 1 Population statistics 1 Red-crowned Crane 1 Red-crowned cranes 1