等高固氮植物篱脐橙园综合效益分析  

Study of benefit of sweet orange orchard under contour hedgerow intercropping system.

作　　者：袁远亮 孙辉[2] 唐亚[2] 

机构地区：[1]四川省宁南县科学技术局,宁南615400 [2]中国科学院成都生物研究所,成都610041

出　　处：《中国生态农业学报》2001年第4期76-78,共3页Chinese Journal of Eco-Agriculture

基　　金：国际山地综合发展中心ATSCFS(1991~2001)资助项目;四川省青年科技基金

摘　　要：对四川省宁南山地实施等高植物篱技术措施试验表明,在约15°～38°坡耕地上每隔4～6m沿等高线建立固N植物篱且在植物篱中套种桑树养蚕,耕作带上培植脐橙且脐橙中套种西瓜和蔬菜等经济作物,发展畜牧业,可建立稳定的坡地农业生态系统;综合效益显著,等高固N植物篱脐橙园第4年试果,4年投入6233元,收入2.9706万元,净收益2.3483万元,投入产出比为1:4.77。对照脐橙园4年投入44万元,收入144万元,净收益10O万元,投入产出比为1:3.27。与对照相比,植物篱脐橙园系统的生物多样性提高,化肥、农药对水果的污染程度降低,脐橙品质较好。等高固N植物篱脐橙园为贫困山区发展绿色农业、实现资源可持续利用和环境保护提供了有效途径。A four-year study of sweet orange orchard under contour hedgerow intercropping system has been carried out in sloping farmland with a slope of 15°-38° at Ningnan Station for Sustainable Mountain Development ,Chengdu Institution of Biology. Sweet orange trees are planted in the alleys between contour hedgerows of Leucena leuco-cephala and mulberry trees are planted within the hedgerows. Melon ,vegetables and other economic crops are inter-cropped with orange. Biogas, raising of livestock and sericulture are also introduced to the system. Prunings from the hedgerows have been used as green manure,mulch materials,fodder and raw materials of biogas. The result of the study indicates that more income-generating options are provided to farmers. Economic,social and ecological benefits are apparent. A cost-benefit analysis of the contour hedgerow orange orchard in the initial four years suggests that the cost and benefit ratio is 1 : 4.77 while it is 1 : 3.27 under using of chemical fertilizers and pesticides. Soil fertility is improved ,biodiversity level is enhanced,quality of products is improved of the contour hedgerow orange orchard. Therefore,contour hedgerow intercropping system seems to be a practicable way for development of pollution free agriculture,sustainable use of sloping land,and conservation of environment in mountain areas.

关 键 词：脐橙园 坡耕地 效益评价 综合效益 等高固氮植物篱 

分 类 号：S666.4[农业科学—果树学]