高平原干草原天然草场恢复生产力研究  

Study on Resuming Production of Natural Pasture in High Plain Dry Steppe

作　　者：曹洁[1] 赵士杰[2] 

机构地区：[1]锡林郭勒职业学院,内蒙古锡林浩特026000 [2]内蒙古农业大学机电学院,呼和浩特010018

出　　处：《农机化研究》2013年第3期180-183,共4页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(40861013)

摘　　要：内蒙古正镶白旗草场类型复杂,沙化退化严重,亟待恢复草原生态,选择该地具有代表性的高平原干草原草场,通过建立试验对比田,探讨和研究应用保护性耕作技术恢复天然草原生产力。通过对传统耕作种植牧草与保护性耕作补播牧草的效益分析表明,1hm2干草产量可增加21%,植被覆盖率增加20%～30%。保护性耕作技术可减少地表雨水径流和蒸发,增加土壤雨水渗透,增强牧草的抗旱性,提高了干旱地区牧业生产能力,为该地可持续发展以及恢复生态开辟了一条新的途径。The type of the pasture in Inner Mongolia Zhengxiangbai Qi is complex with serious desertification, and we are expecting a recovery of the environment there. Choosing the typical natural pasture in high plain dry steppe there, the pa- per discusses and researches on the application of conservation tillage technology on restoring the natural grassland pro- ductivity through the establishment of experimental comparison field. Through the analysis foraging for the benefits of tra- ditional farming planting grass and protective cultivation, we found that hay yield increase by 21% , and vegetation cover increased by 20% to 30%. Conservation tillage technique reduces surface runoff and evaporation, increases soil water penetration and improves the capacity of agricultural production in arid regions. It opens up a new way for ecological resto- ration and sustainable agricultural development in the place studied.

关 键 词：保护性耕作 牧草 补播 

分 类 号：S812.6[农业科学—草业科学]