【摘要】 在半干旱黄土丘陵区，为进一步提高造林成活率、保存率，及增进造林早期苗木生长量，采用径流集存与合理密植，覆盖，吸水剂沾根和施肥等抗旱造林技术，效果显著。更多还原

【Abstract】 in semi -arid Loess hilly region,by using rain off collection,reasonable density,covering,soaking roots with water absorbent,fertilization and other drought resistance foresting techniques, the good results have been made on increasing foresting survival rate,existingrate and the growth amount of early forest nursery.更多还原