Spatial distribution of pressure index of resource-saving farming system in main farming zones in China Research on ecological barrier to Chang-Zhu-Tan metropolitan area A projection-pursuit based model for evaluating the resource-saving and environment-friendly society and its application to a case in Wuhan Studies on development of resource-saving animal husbandary in poor mountain areas--Experiment on introduction of Chinese White Geese Connotation and Principles of resource-saving eco-agriculture in China and ways for its enforcement The Allocation Structure of an Eco-agricultural Resource-saving Model Construction of a resource-saving and environmentally friendly type of Guangdong Technological principles and strategies for development of resourcesaving eco-agriculture in the transitional zone of mountain and plain--A case study from Xilingdi Experimental Area in the hilly districts of Mt. Taihang A study on developing resource-saving animal husbandary in poor mountain regions--Experiments on meat-type rabbit keeping