【摘要】 开封沙区地处河南省沙区腹地，风沙灾害严重，旱涝灾害频繁，地力瘠薄，严重障碍着沙区农牧业生产的发展。因此，自１９８３年在国家科技攻关的基础上建立了开封沙地试验区，探索平原沙区农业生产的发展模式。尤其是“八五”攻关期间，深化农林牧复合生态系统的优化研究，...更多还原

【Abstract】 On the investigation of crop yield, artificial auxiliary energy input and value input, the profit of energy conversion and value transformation of 13 cropping patterns are analyzed, and then their comprehensive benefit of ecological, social and economic result are discussed. The results show they have played positive roles on fertilizing sandy soil, local farming-animal husbandry production and agro-economic. The main cropping patterns nowadays, such as watermelon/peanut, wheat/peanut(coarse sandy soil), wheat/peanut/corn and wheat-sweet potato/corn(light sandy soil) et al, have better comprehensive benefit; the new cropping patterns, such as rye-watermelon/peanut, vegetables/watermelon /peanut, are the best ones, which would encourage the development of farming-forestry-animal husbandry ecosystem and optimizes the distribution of planting structure in sandy region in the future.更多还原