Development mechanism of concentrated poverty areas under the sustainable livelihood: The example of the developmentrestricted ecological district of Ningxia, Northwest China. The interactive mechanism between economy and environment in depressed area-A case study from Dingxi District,Gansu Province Ecological protection and well-being Thinking on the construction of new style eco-agriculture in mountainous regions of the Three Gorges reservoir areas in Chongqing The game analysis between poverty and environment in ecologically fragile zones Research advances in understanding the trade-offs involved in payment for ecosystem services Strategies for poverty reduction and eco-environmental sustainability in old reservoir regions: A case study of Linshui Reservoir in Sichuan Province Conversion of Farmland to Forestland and Sustainable Development in Poverty Areas——A Case Study of Gusheng Village,Guizhou Province Spatial coupling characteristics of eco-environment quality and economic poverty in Lüliang area.