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生态学杂志 ›› 1992, Vol. ›› Issue (2): 4-7.

• 研究报告 • 上一篇    下一篇

八种针阔叶幼树清晨叶水势与土壤含水量的关系及其抗旱性研究

郭连生, 田有亮   

  1. 内蒙古林学院, 呼和浩特 010019
  • 收稿日期:1990-09-17 修回日期:1991-01-17 出版日期:1992-04-10

Relationship Between Leaf Water Potential of Eight Broadleaved and Coniferous Young Trees in Early Morning and Soil Moisture Content and Drought Resistance of These Trees

Guo Liansheng, Tian Youliang   

  1. Inner Mongolia Forestry College, Huhhot 010019
  • Received:1990-09-17 Revised:1991-01-17 Online:1992-04-10

关键词: 棉蚜, 棉长管蚜, 高温胁迫, 累计死亡率, 繁殖率, 互补重对数模型

Abstract: The relationship between leaf water potential of eight broadleaved and coniferous young trees in early morning and soil moisture content is studied. Mathematical equations expressing their relationship are deduced from large amounts of determination data, and critical values of soil moisture content for the normal growth of young trees of different species are calculated. Comparing these values under the same soil condition with drought resistance of young trees of different species,some new results are obtained,which can be of practical significance in guiding afforestation.

Key words: Aphis gossypii, Acyrthosiphon gossypii, high temperature stress, cumulative mortality, reproduction rate, complementary log-log model