Research on the method of regional ecological security disaster trend analysis: a case study at the reaches of Liaohe River The Analysis and Evaluation of Landuse Scenarios in the Liaohe River Delta Wetlands Driving mechanism analysis of landscape pattern change in the lower reach of liaohe river plain based on gis-logistic coupling model Assessment of wetland ecosystem health in the Liaohe River Delta An empirical research on the relationship between water environment and economic development in liaohe river watershed The mechanism and methodology investigation of regional ecological security assessment from a perspective on disaster: a case study of Liaohe River watershed Abstraction and analysis of vegetation information based on object-oriented and spectra features Expert system design for agroecological patterns of multiple cropping in Lower Reaches of Liaohe PlainⅠ.Design thought of the system Regional ecolomic division and function analysis of Liaohe River delta Estimation of ecological water demands based on ecological water table limitations in the lower reaches of the Liaohe River Plain, China Groundwater ecological sensitivity assessment in the lower Liaohe River Plain based on GIS technique Ecology of plant communities in Liaohe estuary wetland tonservation area An ArcGIS-based analysis of groundwater spatial structure and groundwater vulnerability in the lower reaches of the Liaohe River Plain Evaluation of the landscape patterns vulnerability and analysis of spatial correlation patterns in the lower reaches of Liaohe River Plain Ecological health assessment of groundwater in the lower Liaohe River Plain using an ArcView-WOE technique Inter-annual change of vegetation productivity and its driving factors in the Liaohe Delta, northeastern China Transformation of vegetation structure in China’s Liaohe Delta during 1988–2006 The effects of different land-use scenarios on habitat suitability of indicator species in the Liaohe River Delta wetlands The effects of different land-use scenarios on habitat carrying of indicator species in the Liaohe River Delta wetlands Regional ecological risk assessment of in the Liaohe River Delta wetlands The landscap planning scenarios designing and the measures identification in the Liaohe River Delta wetland Effect of applying peat to soda salinized soil on soil salinity in north plain of Liaohe River Research on Region ecological security early warning index: a case of Liaohe River watershed Absorption characteristics and seasonal variations of optically active water constituents from Liaohe River Spatial-temporal evolution of groundwater vulnerability in the lower reaches of the Liaohe River Plain