The soil fauna of a tropical montane rain forest: regulatory forces and functioning in the decomposer system

热带山地雨林的土壤动物群：调节力和分解系统的功能

• 批准号: 36004355
• 负责人: Professor Dr. Stefan Scheu
• 金额: --
• 依托单位: Universidad Técnica Particular de Loja (UTPL)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/36004355?language=en
• 关键词: soil; fauna; tropical; montane; rain

The proposed project in large continues work established and started in the first phase of this Integrated Research Unit. Four topics are investigated: (1) The response of bacterial and fungal feeding soil invertebrates to increased nutrient (nitrogen and phosphorus) supply in a montane tropical rain forest in Ecuador along an elevation gradient from 1000 to 3000 m (‘Nutrient Manipulation Experiment’). As representatives of bacterial and fungal feeders Testacea and Oribatida will be investigated, but with less intensity also Nematoda and Collembola. (2) Effects of increased nutrient (nitrogen and phosphorus) supply on the decomposition of litter and roots of representative tree species along an elevation gradient from 1000 to 3000 m. (3) Recolonization of former pastureland reforested by native tree species by soil animals. (4) Genetic variation of representative species of bacterial (Testacea) and fungal (Oribatida and Collembola) feeding soil animal species with a temperate to tropical distribution.

拟议的大型项目继续在这个综合研究股第一阶段确立和开始的工作。研究了四个主题：(1)在海拔1000 - 3000 m的厄瓜多尔山地热带雨林中，细菌和真菌取食土壤无脊椎动物对养分（氮和磷）供应增加的响应（“养分操纵实验”）。作为细菌和真菌食用者的代表，将调查睾丸科和甲状虫科，但对线虫和弹线虫的调查力度较小。(2)在海拔1000 ~ 3000 m梯度上，增加养分（氮磷）供给对代表性树种凋落物和根系分解的影响。(3)原生树种复植的原牧场被土壤动物重新定植。(4)温带-热带分布的典型细菌（Testacea）和真菌（Oribatida和Collembola）取食土壤动物的遗传变异。