石质山地君迁子直播造林试验

Direct seeding of Diospyros lotus in rocky hills.

1 Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Beijing, 100091, P. R. China; 2 State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, P. R. China; 3 College of Forestry, Shandong Agricultural University, Tai’an, 271018, P. R. China; 4 Shandong Academy of Forestry, Jinan, 251000, P. R. China.

摘要: 为了克服石质山地直播造林旱害和寒害等问题，提高出苗率和保存率，保证该类地区的植被恢复效果，以抗逆性较强的北方乡土树种君迁子为试验树种，研究了生根粉浸种、保水剂拌土、覆膜、覆草、覆石块对造林地土壤微环境及君迁子出苗和生长的影响。结果表明：①地膜覆盖增加了土壤日平均温度；覆草和覆石块降低了土壤温度。②覆膜、覆草和保水剂拌土提高了土壤中的含水量和土壤抗旱能力。③覆膜、覆草、覆石块能显著提高出苗速率和出苗率，覆膜显著提高幼苗生长，保水剂拌土和生根粉浸种作用不明显。④播种180 d，各处理的幼苗保存率、苗高、地径存在差异，但均未达到显著水平。
- 君迁子 /
- 直播造林 /
- 石质山地 /
- 出苗率
- Diospyros lotus /
- direct seeding /
- rocky hills /
- emergence rate