Study on eco-agricultural model in coastal sandy land The prospect of the Chinese ecological agriculture(CEA)at present stage Ecological agriculture modes design in Huayang Lakeside Zone Mode of recycle eco-agriculture of “plant-methane-breeding+pest-killer lamp” in Baise City of Guangxi On the design of chinese ecological agriculture model Urban eco-agriculture model and countermeasures for Shanghai metropolis An eco-agriculture model of “reed-crab-mandarin fish-microlepido yellowtal” for enhanced production functions of soda saline-alkali reed marshlands Economic analysis and standardization of “pig-biogas-fruit” eco-agriculture model in South China Categories of eco-agriculture models in China A case study of recycle agriculture development in Anhui Province