Contribution of fog deposition to water and nutrient cycling in a subtropical mountain cloud forest

雾沉降对亚热带山地云林水和养分循环的贡献

• 批准号: 5427189
• 负责人: Professor Dr. Otto Klemm
• 金额: --
• 依托单位: Institut für Landschaftsökologie
• 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 2006-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5427189?language=en
• 关键词: Contribution; fog; deposition; water; nutrient

This is part of a partner proposal to the DFG and the Taiwan National Science Council (NSC). An experimental ecosystem research study close to the Yuan Yang Lake (YYL) site, in the subtropical mountain cloud forest of northern Taiwan at 1650 m a.s.l. is proposed. The applicants aim to study the contribution of fog deposition to the hydrological and nitrogen cycle within a stand of Chamaecyparis obtusa var. formosana, which is an extraordinarily important cypress species of Taiwan, and which is being regenerated trough forestry activities lately. However, the water and nutrient cycles, and the specific physiology are not nearly understood. The fog frequency at the YYL esosystem research site is high, and fog deposition probably plays a key role in the biogeochemical cycles of the ecosystem. The project consists of two parts, one is a long term (2 years) program to quantify deposition of fog an evapotranspiration of water through model approaches, based on field routine observations. The second component is the development of process understanding through four intensive field experiments, in which the deposition of fog is directly quantified through a micrometeorological experiment. Feedback to the models applied will be an important feature. Extensive preliminary work proves the evidence of the topic and feasibility of the proposed study.

​在台湾北部海拔1650 m的亚热带山地云雾林中，提出了一项靠近元阳湖遗址的生态系统实验研究。摘要本研究旨在研究雾沉降对台湾柏树林内水文及氮循环的贡献。台湾柏树是台湾一种非常重要的柏树种，近年来因林业活动而不断更新。然而，水和营养循环以及具体的生理机制尚不清楚。YYL生态系统研究点雾频率高，雾沉积可能在生态系统生物地球化学循环中起关键作用。该项目由两部分组成，一部分是一个长期（2年）的计划，以野外常规观测为基础，通过模型方法量化雾的沉积和水的蒸散。第二个组成部分是通过四次密集的实地试验来发展对过程的认识，其中通过微气象试验直接量化雾的沉积。对所应用模型的反馈将是一个重要的特性。广泛的初步工作证明了该主题的证据和拟议研究的可行性。