几种处理方式对皂荚直播造林地微环境和出苗率的影响  

Effects of Different Treatments on Soil Microenvironment and Germination Rate of Gleditsia sinensis Afforested by Direct Seeding

作　　者：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] 

机构地区：[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

出　　处：《林业科学研究》2009年第6期851-854,共4页Forest Research

基　　金：山东省省林业局项目“宜林瘠薄山地直播造林技术与示范”

摘　　要：Effects of different treatments,including mulching film,grass cover,block cover,water retaining agent,rooting powder and open field(control),on direct seeding of Gleditsia sinensis Lam.were studied.The results showed that mulching film increased daily average temperature and the effect order was sunlight > after-rain > cloud.The soil temperature of grass cover and block cover were lower than that of open field.After 6-day sunlight,soil moisture content of mulching film,grass cover and water retaining agent were higher than that of open field,with increased by 24.4,21.4,2.5 and 1.0 g·kg-1,respectively.30 days after seeding,the germination rates with the methods of mulching film,rooting powder block cover,water retaining agent were higher than that of the control,with increases of 12.11%,4.20%,3.10%,and 2.10%,respectivey.While the germination rate of grass covering was lower than that of the control.Effects of different treatments, including mulching film, grass cover, block cover, water retaining agent, rooting powder and open field （control）, on direct seeding of Gleditsia sinensis Lam. were studied. The results showed that mulching film increased daily average temperature and the effect order was sunlight 〉 after-rain 〉 cloud. The soil temperature of grass cover and block cover were lower than that of open field. After 6-day sunlight, soil moisture content of mulching film, grass cover and water retaining agent were higher than that of open field, with increased by 24.4,21.4,2.5 and 1.0 g · kg^-1, respectively. 30 days after seeding, the germination rates with the methods of mulching film, rooting powder block cover, water retaining agent were higher than that of the control, with increases of 12.11%, 4.20%, 3.10%, and 2. 10%, respectivey. While the germination rate of grass covering was lower than that of the control.

关 键 词：覆盖方式 皂荚 出苗率 直播造林 

分 类 号：S723.1[农业科学—林木遗传育种]