黄土高原风沙区山桃直播造林技术探析  

Analysis on Live Afforestation Technology of Amygdalus davidiana in Loess Plateau

作　　者：姚志勇 袁珍珠 YAO Zhiyong;YUAN Zhenzhu(Huanxian Forestry Technology Extension Station,Huanxian Gansu 745700,China;Huanxian Comprehensive Forestry Service Center,Huanxian Gansu 745700,China)

机构地区：[1]环县林业技术推广总站,甘肃环县745700 [2]环县林业综合服务中心,甘肃环县745700

出　　处：《甘肃林业科技》2021年第2期31-34,共4页Journal of Gansu Forestry Science and Technology

基　　金：2019年中央财政林业科技推广示范资金项目庆阳市北部沙地生态修复集成技术示范推广;2018年甘肃省科技计划项目环县农牧交错带沙地生态修复新技术示范推广。

摘　　要：在黄土高原风沙危害区,山桃直播造林差异明显。为规范并提高直播造林成效,调查了近年周边直播造林成果成效并开展试验。结果表明,当年或贮存1 a的种子均可直播造林;8月至土壤封冻前均可直播;山桃秋播优于春播;除裸沙地和沟道外,其他立地类型均可直播造林;直播造林前必须调查评价作业区域松鼠、黄鼠和乌鸦等活动情况,种群活跃不可采取直播措施;直播造林必须加强实际操作人员管理,直播技术关键是播种覆土5 cm并踏实覆土。There are obvious differences in direct seeding afforestation of Amygdalus davidiana in the sandstorm area on the Loess Plateau.In order to standardize and improve the results of direct seeding afforestation,the results of peripheral direct seeding afforestation in recent years were investigated and experiments were carried out.The results showed that the seeds stored in the same year or for 1 year could be planted directly.Direct seeding can be done from August to before soil freezing.Autumn sowing of Amygdalus davidiana is better than spring sowing;except bare sandy land and gully,other site types can be afforested directly.Before afforestation,the activities of Sciuridae,Citellus dauricus and Corvus sp.in the working area must be investigated and evaluated,and the measures of direct broadcasting cannot be taken when the population is active.It is necessary to strengthen the management of practical operators for direct seeding afforestation.The key of direct seeding technology is to sow and cover the soil 5 cm and cover the soil steadily.

关 键 词：黄土高原 风沙危害 山桃 直播造林 调查试验 

分 类 号：S662.1042[农业科学—果树学]