Regeneration in an Ethiopian montane forest with special emphasis on tree biology and nurse-tree functions

埃塞俄比亚山地森林的再生，特别强调树木生物学和护理树功能

• 批准号: 5419984
• 负责人: Professor Dr. Erwin Beck
• 金额: --
• 依托单位: Department of Plant Biology and Biodiversity Management
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2004
• 资助国家: 德国
• 起止时间: 2003-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5419984?language=en
• 关键词: Regeneration; Ethiopian; montane; forest; special

In the Munessa-Sheshamene region (Ethiopia) several plots of moderately disturbed natural forest and of exotic tree plantations have been investigated with respect to water relations and photosynthetic capcity of selected indigenous and exotic trees. This ongoing work is part of an ecosystem study conducted by soil scientists, geobotanists and plant ecophysiologists that aims at a scientific basis for a sustainable management of the Munessa forest as a model for other semideciduous forests of Ethiopia. The work shall be continued in two working packages, one of which will investigate the so-called nurse-tree effect. Juveniles of indigenous trees developing from seeds that accidentally arrived in a plantation of Eucalyptus saligna, E. globulus or Pinus patula grow significantly faster under the shelter of these 'nurse-trees' than in a natural forest. This unexpected nurse-tree effect will be studied in plantations with a successful regeneration of indigenous trees. In the second working package, regeneration ecology of important indigenous tree species will be studied, comprising modes of regeneration, regenerative capacity and the effective regeneration success under natural and plantation situations.

在Munessa-Sheshamene地区（埃塞俄比亚）的几个地块的适度干扰的天然林和外来树种种植园进行了调查，就选定的本地和外来树木的水的关系和光合能力。这项正在进行的工作是土壤科学家、地植物学家和植物生态生理学家进行的生态系统研究的一部分，目的是为可持续管理Munessa森林提供科学依据，作为埃塞俄比亚其他半落叶林的典范。这项工作将分两个工作包继续进行，其中一个将调查所谓的护理树效应。从偶然进入欧洲柳桉人工种植园的种子发育成的原生树种的幼龄树，E。在这些“苗圃树”的庇护下，蓝桉或展叶松的生长速度明显快于天然林。这种意想不到的护理树的效果将在种植园与成功的本地树木再生进行研究。在第二个工作包中，将研究重要本土树种的更新生态学，包括自然和种植园情况下的更新模式、更新能力和有效更新成功率。