土壤增水剂在大青山造林中应用效果研究  

Application of Soil Water Increasing Agent to the Afforestation in Daqing Mountains

作　　者：吴丽丽[1] 张伟华[1] 

机构地区：[1]内蒙古农业大学生态环境学院,土壤与植物营养教研室,内蒙古呼和浩特010012

出　　处：《陕西林业科技》2014年第1期14-17,共4页Shaanxi Forest Science and Technology

基　　金：中央财政林业科技推广示范资金项目

摘　　要：以大青山阳坡种植的油松幼苗作为研究对象,对造林时不同的土壤增水剂施用方案之间的效果进行了比较,结果表明:(1)施用土壤增水剂可使油松苗木成活率达80%以上,比对照组高15%。其中30cm深度,1.5kg施用量的油松苗成活率较高。(2)土壤增水剂在其施用深度附近的增水效果较明显,不同的施用量增水效果之间差异不显著。其中施用深度30cm,施用量1.5kg达到的土壤整体含水量最高,六种施用方案的土壤含水量在0.05水平下与对照组的差异均显著。Soil--water increasing agent was experimented with the afforestation of pinus tabulaeformis in the sunny slope of Daqing Mountains. The results showed that： i） the application of soil--water in- creasing agent can make the survival rate of Pinus tabulaeformis reach more than 80~, 15~ higher than the control group, and the survival rate of seedlings with 1.5 kg soil water increasing agent ap- plied at the depth of 30 cm is the highest; ii） the soil water increasing agent generated water increas- ing effect at the adjacent depth where it was applied. Different quantities of the agent applied genera- ted no significant difference in effect of water increasing. With 1.5 kg soil--water increasing agent ap- plied at the depth of 30 cm can generate highest soil water content. Six treatments in soil water in- creasing agent application have significant differences compared with the control group at 0.05 level.

关 键 词：土壤增水剂 油松幼苗 成活率 土壤含水量 

分 类 号：S767.9[农业科学—森林保护学]