几种处理方式对皂荚直播造林地微环境与出苗率影响.docVIP

几种处理方式对皂荚直播造林地微环境与出苗率影响 林业科学研究　2009, 22(6): 851~854 ForestResearch 　　文章编号: 1001-1498(2009)06-0851-04 几种处理方式对皂荚直播造林地微环境与出苗率的影响 李庆梅1,刘　艳2,侯龙鱼2,侯　栋2,陈怀梁2,马风云2,宋玉民3 (1.中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京　100091; 2.山东农业大学 林学院,山东泰安　271018; 3.山东省林业科学研究院,山东济南　251000) 关键词:覆盖方式;皂荚;出苗率;直播造林 中图分类号:S723. 1文献标识码:A 收稿日期: 2008-09-02 基金项目:山东省省林业局项目“宜林瘠薄山地直播造林技术和示范” 作者简介:李庆梅(1964—),女,内蒙古赤峰人,副研究员,从事林木种苗研究工作。E-mai:l liqm@ ca.f ac. cn Effects ofDifferent Treatments on SoilM icroenvironment and Germ ination Rate ofGleditsia sinensisAfforested by Direct Seeding LIQing-mei1,LIU Yan2, HOULong-yu2,HOUDong2, CHENHuai-liang2, MAFeng-yun2,SONG Yu-min3 (1. Research Institute ofForestry,CAF; KeyLaboratory ofTree Breeding and Cultivation, State ForestryAdministration, Beijing　100091, China; 2. ForestryCollege ofShandongAgriculturalUniversity, Tai’an　271018, Shandong, China; 3. ShandongAcademy ofForestry, Ji nan　251000, Shandong, China. ) Abstract:Effects ofdifferent treatments, includingmulching film, grass cover, block cover, water retaining agen,t rooting powder and open field (control), on direct seeding ofGleditsia sinensisLam. were studied. The results showed thatmulching film increased daily average temperature and the effect orderwas sunlight after-rain cloud. The soil temperature ofgrass cover and block coverwere lower than thatofopen field. After6-day sunligh,t soilmoisture contentofmulching film, grass cover and water retaining agentwere higher than that of open field, with increased by24. 4, 21. 4, 2. 5 and 1. 0 g·kg-1, respectively. 30 days afterseeding, the germination rateswith themethods ofmulching film, rooting powder block cover, water retaining agent were higher than that of the contro,l with increases of 12. 11%, 4. 20%, 3. 10%, and 2. 10%, respectivey. While the germination rate of grass coveringwas lower than thatof the contro.l Key words:covering;Gleditsia sinensis; germination rate; direct seeding afforestation 直播造林在石灰岩瘠薄山地植被恢复中具有重 要作用[1],直播造林适合大面积无水源的山地造 林[2]。在荒山植苗造林受到限制时应采用