毛乌素沙区腹地提高飞播成效的技术措施研究  

Technical Measures of Enhancing Aerial-seeding Effect in Mu Us Sandy Land

作　　者：李维向 闫伟 刘朝霞 武生荣 王长征 杨冬翔 盛文玉 高博 

机构地区：[1]鄂尔多斯市林业治沙科学研究所,内蒙古鄂尔多斯017000 [2]鄂托克前旗林业局,内蒙古鄂托克前旗016200

出　　处：《中国沙漠》2009年第1期114-117,共4页Journal of Desert Research

基　　金：国家“十五”重点项目“沙区大范围植被快速恢复技术研究”资助

摘　　要：飞播治沙造林作为一项快速有效的现代化造林措施,已经成为鄂尔多斯毛乌素沙区腹地植被恢复与建设的重要手段。长期的飞播造林实践表明：①在飞播区,设置沙障是提高飞播成效的重要途径。设置平铺式间距4 m行列式沙障和直立式间距6 m行列式沙障,飞播物种成苗率较高,比对照（CK）区的成苗率高出36.5%～37.1%。②飞播种子包衣、丸化处理,均能促进成苗,包衣处理更有利于飞播植物生长。飞播种子包衣、丸化处理与裸种相比,成苗率分别提高了10.6%和13.72%。而且包衣种子播后15 d,其根长、根条数、地径和高生长比对照分别高出11.93 mm、0.9条、0.29 mm和3.24 mm。③不论是在何种立地条件下,经过地面处理的样方内的飞播种子成苗量明显高于对照区样方内的成苗量,其中,采取综合措施的破土处理效果最好,成苗量是对照区的6～8倍。Aerial-seeding afforestation, as a quickly effective measure, has become an important approach for vegetation restoration and reconstruction in hinterland of Mu Us Sandy Land. Long-term practice demonstrated that ① Setting up sand-barrier in aerial-seeding region can enhance the seeding effect, with a higher seedling rate of 36.5 % 37. 1% in horizontal-lay 4 m-span sand-banner or in vertical-standing 6 m-span sand-banner in comparison with CK plot. ②Wrapping and pilling seed treatments all can accelerate young plant growth, with higher seedling rate of 10. 6% and 13.72% respectively in comparison with CK plot, but wrapping treatment is more beneficial for plant growth, and the root length, root number, underground diameter and aboveground height increased respectively by 11.92 mm, 0.9 strips, 0. 39 mm and 4.66 mm in comparison with CK plot; ③The survival seedling number in surface-treated quadrates is remarkably higher than that in CK under all experiment habitats, especially in comprehensively treated plot with survival young plant as 6-8 times as that of CK.

关 键 词：飞播 飞播成效 沙障 种子处理 

分 类 号：S725.72[农业科学—林木遗传育种]