不同造林技术措施对沙棘生理生化指标的影响  

Effects of Different Silvicultural Techniques on Physiological and Biochemical Indexs of Sea Buckthorn

作　　者：叶彦辉[1] 韩艳英[1] 

机构地区：[1]西藏农牧学院,西藏林芝860000

出　　处：《中国农学通报》2012年第13期121-125,共5页Chinese Agricultural Science Bulletin

基　　金："十一五"国家重点科技支撑项目"拉萨半干旱河谷地带植被建设关键技术研究与示范"(2007BAC06B02);"西藏农牧学院创新团队建设项目"(2010)

摘　　要：为了提高西藏半干旱河谷地区的造林存活率,以及提高水分利用效率,促进树木更好地生长,为西藏半干旱河谷地带植被建设提供一定的理论依据,在西藏半干旱河谷地进行造林试验,采用覆石头、覆膜、覆秸秆、覆鸡蛋托盘、用保水剂等不同造林技术措施,研究不同措施下沙棘叶片生理生化指标的变化。结果表明:不同造林技术措施在一定程度上都提高了沙棘的造林成活率,叶片的相对含水量和叶绿素在不同措施下都有所提高,可溶性糖、丙二醛和脯氨酸含量相对都有所下降。说明在半干旱河谷地采用新造林技术措施,对于提高干旱地区的造林成活率,提高水分利用效率,促进树木更好地生长具有明显的作用。In order to improve the afforestation survival percentage, and the strategies for the increase of water use efficiency, promote better growth of trees, to provide some theoretical basis for vegetation construction in semi-arid valley of Tibet, the planting test was established at the semi-arid valleys land in Tibet, using different silvicultural techniques, such as covering stone, covering film, covering straw, covering egg-tray and using water retaining agent. The author researched the changes in physiological and biochemical indexes of sea buckthorn leaves in different measures. The results showed that： to some extent, different measures had increased the survival rate, the relative water content and chlorophyll content in leaves were improved under the different measures, but the contents of soluble sugar, malondiadehyde and proline in leaves were increased. It was showed the introduction of new silvicultural techniques played an irreplaceable role in improving the survival rate in arid regions, increasing water use efficiency and promoting better growth of trees in semi-arid valleys land.

关 键 词：沙棘 生理生化指标 成活率 造林技术措施 

分 类 号：S727[农业科学—林木遗传育种]